Bitnami package for Redis(R)

Redis(R) is an open source, advanced key-value store. It is often referred to as a data structure server since keys can contain strings, hashes, lists, sets and sorted sets.

Overview of Redis®

Disclaimer: Redis is a registered trademark of Redis Ltd. Any rights therein are reserved to Redis Ltd. Any use by Bitnami is for referential purposes only and does not indicate any sponsorship, endorsement, or affiliation between Redis Ltd.

TL;DR

helm install my-release oci://REGISTRY_NAME/REPOSITORY_NAME/redis

Note: You need to substitute the placeholders REGISTRY_NAME and REPOSITORY_NAME with a reference to your Helm chart registry and repository.

Introduction

This chart bootstraps a Redis® deployment on a Kubernetes cluster using the Helm package manager.

Bitnami charts can be used with Kubeapps for deployment and management of Helm Charts in clusters.

Choose between Redis® Helm Chart and Redis® Cluster Helm Chart

You can choose any of the two Redis® Helm charts for deploying a Redis® cluster.

  1. Redis® Helm Chart will deploy a master-replica cluster, with the option of enabling using Redis® Sentinel.
  2. Redis® Cluster Helm Chart will deploy a Redis® Cluster topology with sharding.

The main features of each chart are the following:

Redis® Redis® Cluster
Supports multiple databases Supports only one database. Better if you have a big dataset
Single write point (single master) Multiple write points (multiple masters)
Redis® Topology Redis® Cluster Topology

Prerequisites

  • Kubernetes 1.23+
  • Helm 3.8.0+
  • PV provisioner support in the underlying infrastructure

Installing the Chart

To install the chart with the release name my-release:

helm install my-release oci://REGISTRY_NAME/REPOSITORY_NAME/redis

Note: You need to substitute the placeholders REGISTRY_NAME and REPOSITORY_NAME with a reference to your Helm chart registry and repository. For example, in the case of Bitnami, you need to use REGISTRY_NAME=registry-1.docker.io and REPOSITORY_NAME=bitnamicharts.

The command deploys Redis® on the Kubernetes cluster in the default configuration. The Parameters section lists the parameters that can be configured during installation.

Tip: List all releases using helm list

Configuration and installation details

Resource requests and limits

Bitnami charts allow setting resource requests and limits for all containers inside the chart deployment. These are inside the resources value (check parameter table). Setting requests is essential for production workloads and these should be adapted to your specific use case.

To make this process easier, the chart contains the resourcesPreset values, which automatically sets the resources section according to different presets. Check these presets in the bitnami/common chart. However, in production workloads using resourcePreset is discouraged as it may not fully adapt to your specific needs. Find more information on container resource management in the official Kubernetes documentation.

Rolling VS Immutable tags

It is strongly recommended to use immutable tags in a production environment. This ensures your deployment does not change automatically if the same tag is updated with a different image.

Bitnami will release a new chart updating its containers if a new version of the main container, significant changes, or critical vulnerabilities exist.

Use a different Redis® version

To modify the application version used in this chart, specify a different version of the image using the image.tag parameter and/or a different repository using the image.repository parameter.

Bootstrapping with an External Cluster

This chart is equipped with the ability to bring online a set of Pods that connect to an existing Redis deployment that lies outside of Kubernetes. This effectively creates a hybrid Redis Deployment where both Pods in Kubernetes and Instances such as Virtual Machines can partake in a single Redis Deployment. This is helpful in situations where one may be migrating Redis from Virtual Machines into Kubernetes, for example. To take advantage of this, use the following as an example configuration:

replica:
  externalMaster:
    enabled: true
    host: external-redis-0.internal
sentinel:
  externalMaster:
    enabled: true
    host: external-redis-0.internal

:warning: This is currently limited to clusters in which Sentinel and Redis run on the same node! :warning:

Please also note that the external sentinel must be listening on port 26379, and this is currently not configurable.

Once the Kubernetes Redis Deployment is online and confirmed to be working with the existing cluster, the configuration can then be removed and the cluster will remain connected.

External DNS

This chart is equipped to allow leveraging the ExternalDNS project. Doing so will enable ExternalDNS to publish the FQDN for each instance, in the format of <pod-name>.<release-name>.<dns-suffix>. Example, when using the following configuration:

useExternalDNS:
  enabled: true
  suffix: prod.example.org
  additionalAnnotations:
    ttl: 10

On a cluster where the name of the Helm release is a, the hostname of a Pod is generated as: a-redis-node-0.a-redis.prod.example.org. The IP of that FQDN will match that of the associated Pod. This modifies the following parameters of the Redis/Sentinel configuration using this new FQDN:

  • replica-announce-ip
  • known-sentinel
  • known-replica
  • announce-ip

:warning: This requires a working installation of external-dns to be fully functional. :warning:

See the official ExternalDNS documentation for additional configuration options.

Cluster topologies

Default: Master-Replicas

When installing the chart with architecture=replication, it will deploy a Redis® master StatefulSet and a Redis® replicas StatefulSet. The replicas will be read-replicas of the master. Two services will be exposed:

  • Redis® Master service: Points to the master, where read-write operations can be performed
  • Redis® Replicas service: Points to the replicas, where only read operations are allowed by default.

In case the master crashes, the replicas will wait until the master node is respawned again by the Kubernetes Controller Manager.

Standalone

When installing the chart with architecture=standalone, it will deploy a standalone Redis® StatefulSet. A single service will be exposed:

  • Redis® Master service: Points to the master, where read-write operations can be performed

Master-Replicas with Sentinel

When installing the chart with architecture=replication and sentinel.enabled=true, it will deploy a Redis® master StatefulSet (only one master allowed) and a Redis® replicas StatefulSet. In this case, the pods will contain an extra container with Redis® Sentinel. This container will form a cluster of Redis® Sentinel nodes, which will promote a new master in case the actual one fails.

On graceful termination of the Redis® master pod, a failover of the master is initiated to promote a new master. The Redis® Sentinel container in this pod will wait for the failover to occur before terminating. If sentinel.redisShutdownWaitFailover=true is set (the default), the Redis® container will wait for the failover as well before terminating. This increases availability for reads during failover, but may cause stale reads until all clients have switched to the new master.

In addition to this, only one service is exposed:

  • Redis® service: Exposes port 6379 for Redis® read-only operations and port 26379 for accessing Redis® Sentinel.

For read-only operations, access the service using port 6379. For write operations, it’s necessary to access the Redis® Sentinel cluster and query the current master using the command below (using redis-cli or similar):

SENTINEL get-master-addr-by-name <name of your MasterSet. e.g: mymaster>

This command will return the address of the current master, which can be accessed from inside the cluster.

In case the current master crashes, the Sentinel containers will elect a new master node.

master.count greater than 1 is not designed for use when sentinel.enabled=true.

Multiple masters (experimental)

When master.count is greater than 1, special care must be taken to create a consistent setup.

An example of use case is the creation of a redundant set of standalone masters or master-replicas per Kubernetes node where you must ensure:

  • No more than 1 master can be deployed per Kubernetes node
  • Replicas and writers can only see the single master of their own Kubernetes node

One way of achieving this is by setting master.service.internalTrafficPolicy=Local in combination with a master.affinity.podAntiAffinity spec to never schedule more than one master per Kubernetes node.

It’s recommended to only change master.count if you know what you are doing. master.count greater than 1 is not designed for use when sentinel.enabled=true.

Using a password file

To use a password file for Redis® you need to create a secret containing the password and then deploy the chart using that secret. Follow these instructions:

  • Create the secret with the password. It is important that the file with the password must be called redis-password.
kubectl create secret generic redis-password-secret --from-file=redis-password.yaml
  • Deploy the Helm Chart using the secret name as parameter:
usePassword=true
usePasswordFile=true
existingSecret=redis-password-secret
sentinels.enabled=true
metrics.enabled=true

Securing traffic using TLS

TLS support can be enabled in the chart by specifying the tls. parameters while creating a release. The following parameters should be configured to properly enable the TLS support in the cluster:

  • tls.enabled: Enable TLS support. Defaults to false
  • tls.existingSecret: Name of the secret that contains the certificates. No defaults.
  • tls.certFilename: Certificate filename. No defaults.
  • tls.certKeyFilename: Certificate key filename. No defaults.
  • tls.certCAFilename: CA Certificate filename. No defaults.

For example:

First, create the secret with the certificates files:

kubectl create secret generic certificates-tls-secret --from-file=./cert.pem --from-file=./cert.key --from-file=./ca.pem

Then, use the following parameters:

tls.enabled="true"
tls.existingSecret="certificates-tls-secret"
tls.certFilename="cert.pem"
tls.certKeyFilename="cert.key"
tls.certCAFilename="ca.pem"

Metrics

The chart optionally can start a metrics exporter for prometheus. The metrics endpoint (port 9121) is exposed in the service. Metrics can be scraped from within the cluster using something similar as the described in the example Prometheus scrape configuration. If metrics are to be scraped from outside the cluster, the Kubernetes API proxy can be utilized to access the endpoint.

If you have enabled TLS by specifying tls.enabled=true you also need to specify TLS option to the metrics exporter. You can do that via metrics.extraArgs. You can find the metrics exporter CLI flags for TLS here. For example:

You can either specify metrics.extraArgs.skip-tls-verification=true to skip TLS verification or providing the following values under metrics.extraArgs for TLS client authentication:

tls-client-key-file
tls-client-cert-file
tls-ca-cert-file

Deploy a custom metrics script in the sidecar

A custom Lua script can be added to the redis-exporter sidecar by way of the metrics.extraArgs.script parameter. The pathname of the script must exist on the container, or the redis_exporter process (and therefore the whole pod) will refuse to start. The script can be provided to the sidecar containers via the metrics.extraVolumes and metrics.extraVolumeMounts parameters:

metrics:
  extraVolumeMounts:
    - name: '{{ printf "%s-metrics-script-file" (include "common.names.fullname" .) }}'
      mountPath: '{{ printf "/mnt/%s/" (include "common.names.name" .) }}'
      readOnly: true
  extraVolumes:
    - name: '{{ printf "%s-metrics-script-file" (include "common.names.fullname" .) }}'
      configMap:
        name: '{{ printf "%s-metrics-script" (include "common.names.fullname" .) }}'
  extraArgs:
    script: '{{ printf "/mnt/%s/my_custom_metrics.lua" (include "common.names.name" .) }}'

Then deploy the script into the correct location via extraDeploy:

extraDeploy:
  - apiVersion: v1
    kind: ConfigMap
    metadata:
      name: '{{ printf "%s-metrics-script" (include "common.names.fullname" .) }}'
    data:
      my_custom_metrics.lua: |
        -- LUA SCRIPT CODE HERE, e.g.,
        return {'bitnami_makes_the_best_charts', '1'}

Host Kernel Settings

Redis® may require some changes in the kernel of the host machine to work as expected, in particular increasing the somaxconn value and disabling transparent huge pages. To do so, you can set up a privileged initContainer with the sysctlImage config values, for example:

sysctlImage:
  enabled: true
  mountHostSys: true
  command:
    - /bin/sh
    - -c
    - |-
      install_packages procps
      sysctl -w net.core.somaxconn=10000
      echo never > /host-sys/kernel/mm/transparent_hugepage/enabled

Alternatively, for Kubernetes 1.12+ you can set securityContext.sysctls which will configure sysctls for master and slave pods. Example:

securityContext:
  sysctls:
  - name: net.core.somaxconn
    value: "10000"

Note that this will not disable transparent huge tables.

Backup and restore

To backup and restore Redis deployments on Kubernetes, you will need to create a snapshot of the data in the source cluster, and later restore it in a new cluster with the new parameters. Follow the instructions below:

Step 1: Backup the deployment

  • Connect to one of the nodes and start the Redis CLI tool. Then, run the commands below:

    $ kubectl exec -it my-release-master-0 bash
$ redis-cli
127.0.0.1:6379> auth your_current_redis_password
OK
127.0.0.1:6379> save
OK

  • Copy the dump file from the Redis node:

    kubectl cp my-release-master-0:/data/dump.rdb dump.rdb -c redis

Step 2: Restore the data on the destination cluster

To restore the data in a new cluster, you will need to create a PVC and then upload the dump.rdb file to the new volume.

Follow the following steps:

  • In the values.yaml file set the appendonly parameter to no. You can skip this step if it is already configured as no

    commonConfiguration: |-
   # Enable AOF https://redis.io/topics/persistence#append-only-file
   appendonly no
   # Disable RDB persistence, AOF persistence already enabled.
   save ""

    Note that the Enable AOF comment belongs to the original config file and what you’re actually doing is disabling it. This change will only be neccessary for the temporal cluster you’re creating to upload the dump.

  • Start the new cluster to create the PVCs. Use the command below as an example:

    helm install new-redis  -f values.yaml .  --set cluster.enabled=true  --set cluster.slaveCount=3

  • Now that the PVC were created, stop it and copy the dump.rdp file on the persisted data by using a helping pod.

    $ helm delete new-redis

$ kubectl run --generator=run-pod/v1 -i --rm --tty volpod --overrides='
{
    "apiVersion": "v1",
    "kind": "Pod",
    "metadata": {
        "name": "redisvolpod"
    },
    "spec": {
        "containers": [{
           "command": [
                "tail",
                "-f",
                "/dev/null"
           ],
           "image": "bitnami/minideb",
           "name": "mycontainer",
           "volumeMounts": [{
               "mountPath": "/mnt",
               "name": "redisdata"
            }]
        }],
        "restartPolicy": "Never",
        "volumes": [{
            "name": "redisdata",
            "persistentVolumeClaim": {
                "claimName": "redis-data-new-redis-master-0"
            }
        }]
    }
}' --image="bitnami/minideb"

$ kubectl cp dump.rdb redisvolpod:/mnt/dump.rdb
$ kubectl delete pod volpod

  • Restart the cluster:

    INFO: The appendonly parameter can be safely restored to your desired value.

    helm install new-redis  -f values.yaml .  --set cluster.enabled=true  --set cluster.slaveCount=3

NetworkPolicy

To enable network policy for Redis®, install a networking plugin that implements the Kubernetes NetworkPolicy spec, and set networkPolicy.enabled to true.

With NetworkPolicy enabled, only pods with the generated client label will be able to connect to Redis. This label will be displayed in the output after a successful install.

With networkPolicy.ingressNSMatchLabels pods from other namespaces can connect to Redis. Set networkPolicy.ingressNSPodMatchLabels to match pod labels in matched namespace. For example, for a namespace labeled redis=external and pods in that namespace labeled redis-client=true the fields should be set:

networkPolicy:
  enabled: true
  ingressNSMatchLabels:
    redis: external
  ingressNSPodMatchLabels:
    redis-client: true

Setting Pod’s affinity

This chart allows you to set your custom affinity using the XXX.affinity parameter(s). Find more information about Pod’s affinity in the Kubernetes documentation.

As an alternative, you can use of the preset configurations for pod affinity, pod anti-affinity, and node affinity available at the bitnami/common chart. To do so, set the XXX.podAffinityPreset, XXX.podAntiAffinityPreset, or XXX.nodeAffinityPreset parameters.

Persistence

By default, the chart mounts a Persistent Volume at the /data path. The volume is created using dynamic volume provisioning. If a Persistent Volume Claim already exists, specify it during installation.

Existing PersistentVolumeClaim

  1. Create the PersistentVolume
  2. Create the PersistentVolumeClaim
  3. Install the chart
helm install my-release --set master.persistence.existingClaim=PVC_NAME oci://REGISTRY_NAME/REPOSITORY_NAME/redis

Note: You need to substitute the placeholders REGISTRY_NAME and REPOSITORY_NAME with a reference to your Helm chart registry and repository. For example, in the case of Bitnami, you need to use REGISTRY_NAME=registry-1.docker.io and REPOSITORY_NAME=bitnamicharts.

Parameters

Global parameters

Name Description Value
global.imageRegistry Global Docker image registry ""
global.imagePullSecrets Global Docker registry secret names as an array []
global.defaultStorageClass Global default StorageClass for Persistent Volume(s) ""
global.storageClass DEPRECATED: use global.defaultStorageClass instead ""
global.redis.password Global Redis® password (overrides auth.password) ""
global.compatibility.openshift.adaptSecurityContext Adapt the securityContext sections of the deployment to make them compatible with Openshift restricted-v2 SCC: remove runAsUser, runAsGroup and fsGroup and let the platform use their allowed default IDs. Possible values: auto (apply if the detected running cluster is Openshift), force (perform the adaptation always), disabled (do not perform adaptation) auto

Common parameters

Name Description Value
kubeVersion Override Kubernetes version ""
nameOverride String to partially override common.names.fullname ""
fullnameOverride String to fully override common.names.fullname ""
namespaceOverride String to fully override common.names.namespace ""
commonLabels Labels to add to all deployed objects {}
commonAnnotations Annotations to add to all deployed objects {}
secretAnnotations Annotations to add to secret {}
clusterDomain Kubernetes cluster domain name cluster.local
extraDeploy Array of extra objects to deploy with the release []
useHostnames Use hostnames internally when announcing replication. If false, the hostname will be resolved to an IP address true
nameResolutionThreshold Failure threshold for internal hostnames resolution 5
nameResolutionTimeout Timeout seconds between probes for internal hostnames resolution 5
diagnosticMode.enabled Enable diagnostic mode (all probes will be disabled and the command will be overridden) false
diagnosticMode.command Command to override all containers in the deployment ["sleep"]
diagnosticMode.args Args to override all containers in the deployment ["infinity"]

Redis® Image parameters

Name Description Value
image.registry Redis® image registry REGISTRY_NAME
image.repository Redis® image repository REPOSITORY_NAME/redis
image.digest Redis® image digest in the way sha256:aa…. Please note this parameter, if set, will override the tag ""
image.pullPolicy Redis® image pull policy IfNotPresent
image.pullSecrets Redis® image pull secrets []
image.debug Enable image debug mode false

Redis® common configuration parameters

Name Description Value
architecture Redis® architecture. Allowed values: standalone or replication replication
auth.enabled Enable password authentication true
auth.sentinel Enable password authentication on sentinels too true
auth.password Redis® password ""
auth.existingSecret The name of an existing secret with Redis® credentials ""
auth.existingSecretPasswordKey Password key to be retrieved from existing secret ""
auth.usePasswordFiles Mount credentials as files instead of using an environment variable false
auth.usePasswordFileFromSecret Mount password file from secret true
commonConfiguration Common configuration to be added into the ConfigMap ""
existingConfigmap The name of an existing ConfigMap with your custom configuration for Redis® nodes ""

Redis® master configuration parameters

Name Description Value
master.count Number of Redis® master instances to deploy (experimental, requires additional configuration) 1
master.revisionHistoryLimit The number of old history to retain to allow rollback 10
master.configuration Configuration for Redis® master nodes ""
master.disableCommands Array with Redis® commands to disable on master nodes ["FLUSHDB","FLUSHALL"]
master.command Override default container command (useful when using custom images) []
master.args Override default container args (useful when using custom images) []
master.enableServiceLinks Whether information about services should be injected into pod’s environment variable true
master.preExecCmds Additional commands to run prior to starting Redis® master []
master.extraFlags Array with additional command line flags for Redis® master []
master.extraEnvVars Array with extra environment variables to add to Redis® master nodes []
master.extraEnvVarsCM Name of existing ConfigMap containing extra env vars for Redis® master nodes ""
master.extraEnvVarsSecret Name of existing Secret containing extra env vars for Redis® master nodes ""
master.containerPorts.redis Container port to open on Redis® master nodes 6379
master.startupProbe.enabled Enable startupProbe on Redis® master nodes false
master.startupProbe.initialDelaySeconds Initial delay seconds for startupProbe 20
master.startupProbe.periodSeconds Period seconds for startupProbe 5
master.startupProbe.timeoutSeconds Timeout seconds for startupProbe 5
master.startupProbe.failureThreshold Failure threshold for startupProbe 5
master.startupProbe.successThreshold Success threshold for startupProbe 1
master.livenessProbe.enabled Enable livenessProbe on Redis® master nodes true
master.livenessProbe.initialDelaySeconds Initial delay seconds for livenessProbe 20
master.livenessProbe.periodSeconds Period seconds for livenessProbe 5
master.livenessProbe.timeoutSeconds Timeout seconds for livenessProbe 5
master.livenessProbe.failureThreshold Failure threshold for livenessProbe 5
master.livenessProbe.successThreshold Success threshold for livenessProbe 1
master.readinessProbe.enabled Enable readinessProbe on Redis® master nodes true
master.readinessProbe.initialDelaySeconds Initial delay seconds for readinessProbe 20
master.readinessProbe.periodSeconds Period seconds for readinessProbe 5
master.readinessProbe.timeoutSeconds Timeout seconds for readinessProbe 1
master.readinessProbe.failureThreshold Failure threshold for readinessProbe 5
master.readinessProbe.successThreshold Success threshold for readinessProbe 1
master.customStartupProbe Custom startupProbe that overrides the default one {}
master.customLivenessProbe Custom livenessProbe that overrides the default one {}
master.customReadinessProbe Custom readinessProbe that overrides the default one {}
master.resourcesPreset Set container resources according to one common preset (allowed values: none, nano, micro, small, medium, large, xlarge, 2xlarge). This is ignored if master.resources is set (master.resources is recommended for production). nano
master.resources Set container requests and limits for different resources like CPU or memory (essential for production workloads) {}
master.podSecurityContext.enabled Enabled Redis® master pods’ Security Context true
master.podSecurityContext.fsGroupChangePolicy Set filesystem group change policy Always
master.podSecurityContext.sysctls Set kernel settings using the sysctl interface []
master.podSecurityContext.supplementalGroups Set filesystem extra groups []
master.podSecurityContext.fsGroup Set Redis® master pod’s Security Context fsGroup 1001
master.containerSecurityContext.enabled Enabled Redis® master containers’ Security Context true
master.containerSecurityContext.seLinuxOptions Set SELinux options in container {}
master.containerSecurityContext.runAsUser Set Redis® master containers’ Security Context runAsUser 1001
master.containerSecurityContext.runAsGroup Set Redis® master containers’ Security Context runAsGroup 1001
master.containerSecurityContext.runAsNonRoot Set Redis® master containers’ Security Context runAsNonRoot true
master.containerSecurityContext.allowPrivilegeEscalation Is it possible to escalate Redis® pod(s) privileges false
master.containerSecurityContext.readOnlyRootFilesystem Set container’s Security Context read-only root filesystem true
master.containerSecurityContext.seccompProfile.type Set Redis® master containers’ Security Context seccompProfile RuntimeDefault
master.containerSecurityContext.capabilities.drop Set Redis® master containers’ Security Context capabilities to drop ["ALL"]
master.kind Use either Deployment, StatefulSet (default) or DaemonSet StatefulSet
master.schedulerName Alternate scheduler for Redis® master pods ""
master.updateStrategy.type Redis® master statefulset strategy type RollingUpdate
master.minReadySeconds How many seconds a pod needs to be ready before killing the next, during update 0
master.priorityClassName Redis® master pods’ priorityClassName ""
master.automountServiceAccountToken Mount Service Account token in pod false
master.hostAliases Redis® master pods host aliases []
master.podLabels Extra labels for Redis® master pods {}
master.podAnnotations Annotations for Redis® master pods {}
master.shareProcessNamespace Share a single process namespace between all of the containers in Redis® master pods false
master.podAffinityPreset Pod affinity preset. Ignored if master.affinity is set. Allowed values: soft or hard ""
master.podAntiAffinityPreset Pod anti-affinity preset. Ignored if master.affinity is set. Allowed values: soft or hard soft
master.nodeAffinityPreset.type Node affinity preset type. Ignored if master.affinity is set. Allowed values: soft or hard ""
master.nodeAffinityPreset.key Node label key to match. Ignored if master.affinity is set ""
master.nodeAffinityPreset.values Node label values to match. Ignored if master.affinity is set []
master.affinity Affinity for Redis® master pods assignment {}
master.nodeSelector Node labels for Redis® master pods assignment {}
master.tolerations Tolerations for Redis® master pods assignment []
master.topologySpreadConstraints Spread Constraints for Redis® master pod assignment []
master.dnsPolicy DNS Policy for Redis® master pod ""
master.dnsConfig DNS Configuration for Redis® master pod {}
master.lifecycleHooks for the Redis® master container(s) to automate configuration before or after startup {}
master.extraVolumes Optionally specify extra list of additional volumes for the Redis® master pod(s) []
master.extraVolumeMounts Optionally specify extra list of additional volumeMounts for the Redis® master container(s) []
master.sidecars Add additional sidecar containers to the Redis® master pod(s) []
master.initContainers Add additional init containers to the Redis® master pod(s) []
master.persistence.enabled Enable persistence on Redis® master nodes using Persistent Volume Claims true
master.persistence.medium Provide a medium for emptyDir volumes. ""
master.persistence.sizeLimit Set this to enable a size limit for emptyDir volumes. ""
master.persistence.path The path the volume will be mounted at on Redis® master containers /data
master.persistence.subPath The subdirectory of the volume to mount on Redis® master containers ""
master.persistence.subPathExpr Used to construct the subPath subdirectory of the volume to mount on Redis® master containers ""
master.persistence.storageClass Persistent Volume storage class ""
master.persistence.accessModes Persistent Volume access modes ["ReadWriteOnce"]
master.persistence.size Persistent Volume size 8Gi
master.persistence.annotations Additional custom annotations for the PVC {}
master.persistence.labels Additional custom labels for the PVC {}
master.persistence.selector Additional labels to match for the PVC {}
master.persistence.dataSource Custom PVC data source {}
master.persistence.existingClaim Use a existing PVC which must be created manually before bound ""
master.persistentVolumeClaimRetentionPolicy.enabled Controls if and how PVCs are deleted during the lifecycle of a StatefulSet false
master.persistentVolumeClaimRetentionPolicy.whenScaled Volume retention behavior when the replica count of the StatefulSet is reduced Retain
master.persistentVolumeClaimRetentionPolicy.whenDeleted Volume retention behavior that applies when the StatefulSet is deleted Retain
master.service.type Redis® master service type ClusterIP
master.service.portNames.redis Redis® master service port name tcp-redis
master.service.ports.redis Redis® master service port 6379
master.service.nodePorts.redis Node port for Redis® master ""
master.service.externalTrafficPolicy Redis® master service external traffic policy Cluster
master.service.extraPorts Extra ports to expose (normally used with the sidecar value) []
master.service.internalTrafficPolicy Redis® master service internal traffic policy (requires Kubernetes v1.22 or greater to be usable) Cluster
master.service.clusterIP Redis® master service Cluster IP ""
master.service.loadBalancerIP Redis® master service Load Balancer IP ""
master.service.loadBalancerClass master service Load Balancer class if service type is LoadBalancer (optional, cloud specific) ""
master.service.loadBalancerSourceRanges Redis® master service Load Balancer sources []
master.service.externalIPs Redis® master service External IPs []
master.service.annotations Additional custom annotations for Redis® master service {}
master.service.sessionAffinity Session Affinity for Kubernetes service, can be “None” or “ClientIP” None
master.service.sessionAffinityConfig Additional settings for the sessionAffinity {}
master.terminationGracePeriodSeconds Integer setting the termination grace period for the redis-master pods 30
master.serviceAccount.create Specifies whether a ServiceAccount should be created true
master.serviceAccount.name The name of the ServiceAccount to use. ""
master.serviceAccount.automountServiceAccountToken Whether to auto mount the service account token false
master.serviceAccount.annotations Additional custom annotations for the ServiceAccount {}
master.pdb.create Enable/disable a Pod Disruption Budget creation true
master.pdb.minAvailable Minimum number/percentage of pods that should remain scheduled {}
master.pdb.maxUnavailable Maximum number/percentage of pods that may be made unavailable. Defaults to 1 if both master.pdb.minAvailable and master.pdb.maxUnavailable are empty. {}
master.extraPodSpec Optionally specify extra PodSpec for the Redis® master pod(s) {}

Redis® replicas configuration parameters

Name Description Value
replica.kind Use either DaemonSet or StatefulSet (default) StatefulSet
replica.replicaCount Number of Redis® replicas to deploy 3
replica.revisionHistoryLimit The number of old history to retain to allow rollback 10
replica.configuration Configuration for Redis® replicas nodes ""
replica.disableCommands Array with Redis® commands to disable on replicas nodes ["FLUSHDB","FLUSHALL"]
replica.command Override default container command (useful when using custom images) []
replica.args Override default container args (useful when using custom images) []
replica.enableServiceLinks Whether information about services should be injected into pod’s environment variable true
replica.preExecCmds Additional commands to run prior to starting Redis® replicas []
replica.extraFlags Array with additional command line flags for Redis® replicas []
replica.extraEnvVars Array with extra environment variables to add to Redis® replicas nodes []
replica.extraEnvVarsCM Name of existing ConfigMap containing extra env vars for Redis® replicas nodes ""
replica.extraEnvVarsSecret Name of existing Secret containing extra env vars for Redis® replicas nodes ""
replica.externalMaster.enabled Use external master for bootstrapping false
replica.externalMaster.host External master host to bootstrap from ""
replica.externalMaster.port Port for Redis service external master host 6379
replica.containerPorts.redis Container port to open on Redis® replicas nodes 6379
replica.startupProbe.enabled Enable startupProbe on Redis® replicas nodes true
replica.startupProbe.initialDelaySeconds Initial delay seconds for startupProbe 10
replica.startupProbe.periodSeconds Period seconds for startupProbe 10
replica.startupProbe.timeoutSeconds Timeout seconds for startupProbe 5
replica.startupProbe.failureThreshold Failure threshold for startupProbe 22
replica.startupProbe.successThreshold Success threshold for startupProbe 1
replica.livenessProbe.enabled Enable livenessProbe on Redis® replicas nodes true
replica.livenessProbe.initialDelaySeconds Initial delay seconds for livenessProbe 20
replica.livenessProbe.periodSeconds Period seconds for livenessProbe 5
replica.livenessProbe.timeoutSeconds Timeout seconds for livenessProbe 5
replica.livenessProbe.failureThreshold Failure threshold for livenessProbe 5
replica.livenessProbe.successThreshold Success threshold for livenessProbe 1
replica.readinessProbe.enabled Enable readinessProbe on Redis® replicas nodes true
replica.readinessProbe.initialDelaySeconds Initial delay seconds for readinessProbe 20
replica.readinessProbe.periodSeconds Period seconds for readinessProbe 5
replica.readinessProbe.timeoutSeconds Timeout seconds for readinessProbe 1
replica.readinessProbe.failureThreshold Failure threshold for readinessProbe 5
replica.readinessProbe.successThreshold Success threshold for readinessProbe 1
replica.customStartupProbe Custom startupProbe that overrides the default one {}
replica.customLivenessProbe Custom livenessProbe that overrides the default one {}
replica.customReadinessProbe Custom readinessProbe that overrides the default one {}
replica.resourcesPreset Set container resources according to one common preset (allowed values: none, nano, micro, small, medium, large, xlarge, 2xlarge). This is ignored if replica.resources is set (replica.resources is recommended for production). nano
replica.resources Set container requests and limits for different resources like CPU or memory (essential for production workloads) {}
replica.podSecurityContext.enabled Enabled Redis® replicas pods’ Security Context true
replica.podSecurityContext.fsGroupChangePolicy Set filesystem group change policy Always
replica.podSecurityContext.sysctls Set kernel settings using the sysctl interface []
replica.podSecurityContext.supplementalGroups Set filesystem extra groups []
replica.podSecurityContext.fsGroup Set Redis® replicas pod’s Security Context fsGroup 1001
replica.containerSecurityContext.enabled Enabled Redis® replicas containers’ Security Context true
replica.containerSecurityContext.seLinuxOptions Set SELinux options in container {}
replica.containerSecurityContext.runAsUser Set Redis® replicas containers’ Security Context runAsUser 1001
replica.containerSecurityContext.runAsGroup Set Redis® replicas containers’ Security Context runAsGroup 1001
replica.containerSecurityContext.runAsNonRoot Set Redis® replicas containers’ Security Context runAsNonRoot true
replica.containerSecurityContext.allowPrivilegeEscalation Set Redis® replicas pod’s Security Context allowPrivilegeEscalation false
replica.containerSecurityContext.readOnlyRootFilesystem Set container’s Security Context read-only root filesystem true
replica.containerSecurityContext.seccompProfile.type Set Redis® replicas containers’ Security Context seccompProfile RuntimeDefault
replica.containerSecurityContext.capabilities.drop Set Redis® replicas containers’ Security Context capabilities to drop ["ALL"]
replica.schedulerName Alternate scheduler for Redis® replicas pods ""
replica.updateStrategy.type Redis® replicas statefulset strategy type RollingUpdate
replica.minReadySeconds How many seconds a pod needs to be ready before killing the next, during update 0
replica.priorityClassName Redis® replicas pods’ priorityClassName ""
replica.podManagementPolicy podManagementPolicy to manage scaling operation of %%MAIN_CONTAINER_NAME%% pods ""
replica.automountServiceAccountToken Mount Service Account token in pod false
replica.hostAliases Redis® replicas pods host aliases []
replica.podLabels Extra labels for Redis® replicas pods {}
replica.podAnnotations Annotations for Redis® replicas pods {}
replica.shareProcessNamespace Share a single process namespace between all of the containers in Redis® replicas pods false
replica.podAffinityPreset Pod affinity preset. Ignored if replica.affinity is set. Allowed values: soft or hard ""
replica.podAntiAffinityPreset Pod anti-affinity preset. Ignored if replica.affinity is set. Allowed values: soft or hard soft
replica.nodeAffinityPreset.type Node affinity preset type. Ignored if replica.affinity is set. Allowed values: soft or hard ""
replica.nodeAffinityPreset.key Node label key to match. Ignored if replica.affinity is set ""
replica.nodeAffinityPreset.values Node label values to match. Ignored if replica.affinity is set []
replica.affinity Affinity for Redis® replicas pods assignment {}
replica.nodeSelector Node labels for Redis® replicas pods assignment {}
replica.tolerations Tolerations for Redis® replicas pods assignment []
replica.topologySpreadConstraints Spread Constraints for Redis® replicas pod assignment []
replica.dnsPolicy DNS Policy for Redis® replica pods ""
replica.dnsConfig DNS Configuration for Redis® replica pods {}
replica.lifecycleHooks for the Redis® replica container(s) to automate configuration before or after startup {}
replica.extraVolumes Optionally specify extra list of additional volumes for the Redis® replicas pod(s) []
replica.extraVolumeMounts Optionally specify extra list of additional volumeMounts for the Redis® replicas container(s) []
replica.sidecars Add additional sidecar containers to the Redis® replicas pod(s) []
replica.initContainers Add additional init containers to the Redis® replicas pod(s) []
replica.persistence.enabled Enable persistence on Redis® replicas nodes using Persistent Volume Claims true
replica.persistence.medium Provide a medium for emptyDir volumes. ""
replica.persistence.sizeLimit Set this to enable a size limit for emptyDir volumes. ""
replica.persistence.path The path the volume will be mounted at on Redis® replicas containers /data
replica.persistence.subPath The subdirectory of the volume to mount on Redis® replicas containers ""
replica.persistence.subPathExpr Used to construct the subPath subdirectory of the volume to mount on Redis® replicas containers ""
replica.persistence.storageClass Persistent Volume storage class ""
replica.persistence.accessModes Persistent Volume access modes ["ReadWriteOnce"]
replica.persistence.size Persistent Volume size 8Gi
replica.persistence.annotations Additional custom annotations for the PVC {}
replica.persistence.labels Additional custom labels for the PVC {}
replica.persistence.selector Additional labels to match for the PVC {}
replica.persistence.dataSource Custom PVC data source {}
replica.persistence.existingClaim Use a existing PVC which must be created manually before bound ""
replica.persistentVolumeClaimRetentionPolicy.enabled Controls if and how PVCs are deleted during the lifecycle of a StatefulSet false
replica.persistentVolumeClaimRetentionPolicy.whenScaled Volume retention behavior when the replica count of the StatefulSet is reduced Retain
replica.persistentVolumeClaimRetentionPolicy.whenDeleted Volume retention behavior that applies when the StatefulSet is deleted Retain
replica.service.type Redis® replicas service type ClusterIP
replica.service.ports.redis Redis® replicas service port 6379
replica.service.nodePorts.redis Node port for Redis® replicas ""
replica.service.externalTrafficPolicy Redis® replicas service external traffic policy Cluster
replica.service.internalTrafficPolicy Redis® replicas service internal traffic policy (requires Kubernetes v1.22 or greater to be usable) Cluster
replica.service.extraPorts Extra ports to expose (normally used with the sidecar value) []
replica.service.clusterIP Redis® replicas service Cluster IP ""
replica.service.loadBalancerIP Redis® replicas service Load Balancer IP ""
replica.service.loadBalancerClass replicas service Load Balancer class if service type is LoadBalancer (optional, cloud specific) ""
replica.service.loadBalancerSourceRanges Redis® replicas service Load Balancer sources []
replica.service.annotations Additional custom annotations for Redis® replicas service {}
replica.service.sessionAffinity Session Affinity for Kubernetes service, can be “None” or “ClientIP” None
replica.service.sessionAffinityConfig Additional settings for the sessionAffinity {}
replica.terminationGracePeriodSeconds Integer setting the termination grace period for the redis-replicas pods 30
replica.autoscaling.enabled Enable replica autoscaling settings false
replica.autoscaling.minReplicas Minimum replicas for the pod autoscaling 1
replica.autoscaling.maxReplicas Maximum replicas for the pod autoscaling 11
replica.autoscaling.targetCPU Percentage of CPU to consider when autoscaling ""
replica.autoscaling.targetMemory Percentage of Memory to consider when autoscaling ""
replica.serviceAccount.create Specifies whether a ServiceAccount should be created true
replica.serviceAccount.name The name of the ServiceAccount to use. ""
replica.serviceAccount.automountServiceAccountToken Whether to auto mount the service account token false
replica.serviceAccount.annotations Additional custom annotations for the ServiceAccount {}
replica.pdb.create Enable/disable a Pod Disruption Budget creation true
replica.pdb.minAvailable Minimum number/percentage of pods that should remain scheduled {}
replica.pdb.maxUnavailable Maximum number/percentage of pods that may be made unavailable. Defaults to 1 if both replica.pdb.minAvailable and replica.pdb.maxUnavailable are empty. {}
replica.extraPodSpec Optionally specify extra PodSpec for the Redis® replicas pod(s) {}

Redis® Sentinel configuration parameters

Name Description Value
sentinel.enabled Use Redis® Sentinel on Redis® pods. false
sentinel.image.registry Redis® Sentinel image registry REGISTRY_NAME
sentinel.image.repository Redis® Sentinel image repository REPOSITORY_NAME/redis-sentinel
sentinel.image.digest Redis® Sentinel image digest in the way sha256:aa…. Please note this parameter, if set, will override the tag ""
sentinel.image.pullPolicy Redis® Sentinel image pull policy IfNotPresent
sentinel.image.pullSecrets Redis® Sentinel image pull secrets []
sentinel.image.debug Enable image debug mode false
sentinel.annotations Additional custom annotations for Redis® Sentinel resource {}
sentinel.masterSet Master set name mymaster
sentinel.quorum Sentinel Quorum 2
sentinel.getMasterTimeout Amount of time to allow before get_sentinel_master_info() times out. 90
sentinel.automateClusterRecovery Automate cluster recovery in cases where the last replica is not considered a good replica and Sentinel won’t automatically failover to it. false
sentinel.redisShutdownWaitFailover Whether the Redis® master container waits for the failover at shutdown (in addition to the Redis® Sentinel container). true
sentinel.downAfterMilliseconds Timeout for detecting a Redis® node is down 60000
sentinel.failoverTimeout Timeout for performing a election failover 180000
sentinel.parallelSyncs Number of replicas that can be reconfigured in parallel to use the new master after a failover 1
sentinel.configuration Configuration for Redis® Sentinel nodes ""
sentinel.command Override default container command (useful when using custom images) []
sentinel.args Override default container args (useful when using custom images) []
sentinel.enableServiceLinks Whether information about services should be injected into pod’s environment variable true
sentinel.preExecCmds Additional commands to run prior to starting Redis® Sentinel []
sentinel.extraEnvVars Array with extra environment variables to add to Redis® Sentinel nodes []
sentinel.extraEnvVarsCM Name of existing ConfigMap containing extra env vars for Redis® Sentinel nodes ""
sentinel.extraEnvVarsSecret Name of existing Secret containing extra env vars for Redis® Sentinel nodes ""
sentinel.externalMaster.enabled Use external master for bootstrapping false
sentinel.externalMaster.host External master host to bootstrap from ""
sentinel.externalMaster.port Port for Redis service external master host 6379
sentinel.containerPorts.sentinel Container port to open on Redis® Sentinel nodes 26379
sentinel.startupProbe.enabled Enable startupProbe on Redis® Sentinel nodes true
sentinel.startupProbe.initialDelaySeconds Initial delay seconds for startupProbe 10
sentinel.startupProbe.periodSeconds Period seconds for startupProbe 10
sentinel.startupProbe.timeoutSeconds Timeout seconds for startupProbe 5
sentinel.startupProbe.failureThreshold Failure threshold for startupProbe 22
sentinel.startupProbe.successThreshold Success threshold for startupProbe 1
sentinel.livenessProbe.enabled Enable livenessProbe on Redis® Sentinel nodes true
sentinel.livenessProbe.initialDelaySeconds Initial delay seconds for livenessProbe 20
sentinel.livenessProbe.periodSeconds Period seconds for livenessProbe 10
sentinel.livenessProbe.timeoutSeconds Timeout seconds for livenessProbe 5
sentinel.livenessProbe.failureThreshold Failure threshold for livenessProbe 6
sentinel.livenessProbe.successThreshold Success threshold for livenessProbe 1
sentinel.readinessProbe.enabled Enable readinessProbe on Redis® Sentinel nodes true
sentinel.readinessProbe.initialDelaySeconds Initial delay seconds for readinessProbe 20
sentinel.readinessProbe.periodSeconds Period seconds for readinessProbe 5
sentinel.readinessProbe.timeoutSeconds Timeout seconds for readinessProbe 1
sentinel.readinessProbe.failureThreshold Failure threshold for readinessProbe 6
sentinel.readinessProbe.successThreshold Success threshold for readinessProbe 1
sentinel.customStartupProbe Custom startupProbe that overrides the default one {}
sentinel.customLivenessProbe Custom livenessProbe that overrides the default one {}
sentinel.customReadinessProbe Custom readinessProbe that overrides the default one {}
sentinel.persistence.enabled Enable persistence on Redis® sentinel nodes using Persistent Volume Claims (Experimental) false
sentinel.persistence.storageClass Persistent Volume storage class ""
sentinel.persistence.accessModes Persistent Volume access modes ["ReadWriteOnce"]
sentinel.persistence.size Persistent Volume size 100Mi
sentinel.persistence.annotations Additional custom annotations for the PVC {}
sentinel.persistence.labels Additional custom labels for the PVC {}
sentinel.persistence.selector Additional labels to match for the PVC {}
sentinel.persistence.dataSource Custom PVC data source {}
sentinel.persistence.medium Provide a medium for emptyDir volumes. ""
sentinel.persistence.sizeLimit Set this to enable a size limit for emptyDir volumes. ""
sentinel.persistentVolumeClaimRetentionPolicy.enabled Controls if and how PVCs are deleted during the lifecycle of a StatefulSet false
sentinel.persistentVolumeClaimRetentionPolicy.whenScaled Volume retention behavior when the replica count of the StatefulSet is reduced Retain
sentinel.persistentVolumeClaimRetentionPolicy.whenDeleted Volume retention behavior that applies when the StatefulSet is deleted Retain
sentinel.resourcesPreset Set container resources according to one common preset (allowed values: none, nano, micro, small, medium, large, xlarge, 2xlarge). This is ignored if sentinel.resources is set (sentinel.resources is recommended for production). nano
sentinel.resources Set container requests and limits for different resources like CPU or memory (essential for production workloads) {}
sentinel.containerSecurityContext.enabled Enabled Redis® Sentinel containers’ Security Context true
sentinel.containerSecurityContext.seLinuxOptions Set SELinux options in container {}
sentinel.containerSecurityContext.runAsUser Set Redis® Sentinel containers’ Security Context runAsUser 1001
sentinel.containerSecurityContext.runAsGroup Set Redis® Sentinel containers’ Security Context runAsGroup 1001
sentinel.containerSecurityContext.runAsNonRoot Set Redis® Sentinel containers’ Security Context runAsNonRoot true
sentinel.containerSecurityContext.readOnlyRootFilesystem Set container’s Security Context read-only root filesystem true
sentinel.containerSecurityContext.allowPrivilegeEscalation Set Redis® Sentinel containers’ Security Context allowPrivilegeEscalation false
sentinel.containerSecurityContext.seccompProfile.type Set Redis® Sentinel containers’ Security Context seccompProfile RuntimeDefault
sentinel.containerSecurityContext.capabilities.drop Set Redis® Sentinel containers’ Security Context capabilities to drop ["ALL"]
sentinel.lifecycleHooks for the Redis® sentinel container(s) to automate configuration before or after startup {}
sentinel.extraVolumes Optionally specify extra list of additional volumes for the Redis® Sentinel []
sentinel.extraVolumeMounts Optionally specify extra list of additional volumeMounts for the Redis® Sentinel container(s) []
sentinel.service.type Redis® Sentinel service type ClusterIP
sentinel.service.ports.redis Redis® service port for Redis® 6379
sentinel.service.ports.sentinel Redis® service port for Redis® Sentinel 26379
sentinel.service.nodePorts.redis Node port for Redis® ""
sentinel.service.nodePorts.sentinel Node port for Sentinel ""
sentinel.service.externalTrafficPolicy Redis® Sentinel service external traffic policy Cluster
sentinel.service.extraPorts Extra ports to expose (normally used with the sidecar value) []
sentinel.service.clusterIP Redis® Sentinel service Cluster IP ""
sentinel.service.createMaster Enable master service pointing to the current master (experimental) false
sentinel.service.loadBalancerIP Redis® Sentinel service Load Balancer IP ""
sentinel.service.loadBalancerClass sentinel service Load Balancer class if service type is LoadBalancer (optional, cloud specific) ""
sentinel.service.loadBalancerSourceRanges Redis® Sentinel service Load Balancer sources []
sentinel.service.annotations Additional custom annotations for Redis® Sentinel service {}
sentinel.service.sessionAffinity Session Affinity for Kubernetes service, can be “None” or “ClientIP” None
sentinel.service.sessionAffinityConfig Additional settings for the sessionAffinity {}
sentinel.service.headless.annotations Annotations for the headless service. {}
sentinel.masterService.enabled Enable master service pointing to the current master (experimental) false
sentinel.masterService.type Redis® Sentinel master service type ClusterIP
sentinel.masterService.ports.redis Redis® service port for Redis® 6379
sentinel.masterService.nodePorts.redis Node port for Redis® ""
sentinel.masterService.externalTrafficPolicy Redis® master service external traffic policy ""
sentinel.masterService.extraPorts Extra ports to expose (normally used with the sidecar value) []
sentinel.masterService.clusterIP Redis® master service Cluster IP ""
sentinel.masterService.loadBalancerIP Redis® master service Load Balancer IP ""
sentinel.masterService.loadBalancerClass master service Load Balancer class if service type is LoadBalancer (optional, cloud specific) ""
sentinel.masterService.loadBalancerSourceRanges Redis® master service Load Balancer sources []
sentinel.masterService.annotations Additional custom annotations for Redis® master service {}
sentinel.masterService.sessionAffinity Session Affinity for Kubernetes service, can be “None” or “ClientIP” None
sentinel.masterService.sessionAffinityConfig Additional settings for the sessionAffinity {}
sentinel.terminationGracePeriodSeconds Integer setting the termination grace period for the redis-node pods 30
sentinel.extraPodSpec Optionally specify extra PodSpec for the Redis® Sentinel pod(s) {}

Other Parameters

Name Description Value
serviceBindings.enabled Create secret for service binding (Experimental) false
networkPolicy.enabled Enable creation of NetworkPolicy resources true
networkPolicy.allowExternal Don’t require client label for connections true
networkPolicy.allowExternalEgress Allow the pod to access any range of port and all destinations. true
networkPolicy.extraIngress Add extra ingress rules to the NetworkPolicy []
networkPolicy.extraEgress Add extra egress rules to the NetworkPolicy []
networkPolicy.ingressNSMatchLabels Labels to match to allow traffic from other namespaces {}
networkPolicy.ingressNSPodMatchLabels Pod labels to match to allow traffic from other namespaces {}
networkPolicy.metrics.allowExternal Don’t require client label for connections for metrics endpoint true
networkPolicy.metrics.ingressNSMatchLabels Labels to match to allow traffic from other namespaces to metrics endpoint {}
networkPolicy.metrics.ingressNSPodMatchLabels Pod labels to match to allow traffic from other namespaces to metrics endpoint {}
podSecurityPolicy.create Whether to create a PodSecurityPolicy. WARNING: PodSecurityPolicy is deprecated in Kubernetes v1.21 or later, unavailable in v1.25 or later false
podSecurityPolicy.enabled Enable PodSecurityPolicy’s RBAC rules false
rbac.create Specifies whether RBAC resources should be created false
rbac.rules Custom RBAC rules to set []
serviceAccount.create Specifies whether a ServiceAccount should be created true
serviceAccount.name The name of the ServiceAccount to use. ""
serviceAccount.automountServiceAccountToken Whether to auto mount the service account token false
serviceAccount.annotations Additional custom annotations for the ServiceAccount {}
pdb DEPRECATED Please use master.pdb and replica.pdb values instead {}
tls.enabled Enable TLS traffic false
tls.authClients Require clients to authenticate true
tls.autoGenerated Enable autogenerated certificates false
tls.existingSecret The name of the existing secret that contains the TLS certificates ""
tls.certificatesSecret DEPRECATED. Use existingSecret instead. ""
tls.certFilename Certificate filename ""
tls.certKeyFilename Certificate Key filename ""
tls.certCAFilename CA Certificate filename ""
tls.dhParamsFilename File containing DH params (in order to support DH based ciphers) ""

Metrics Parameters

Name Description Value
metrics.enabled Start a sidecar prometheus exporter to expose Redis® metrics false
metrics.image.registry Redis® Exporter image registry REGISTRY_NAME
metrics.image.repository Redis® Exporter image repository REPOSITORY_NAME/redis-exporter
metrics.image.digest Redis® Exporter image digest in the way sha256:aa…. Please note this parameter, if set, will override the tag ""
metrics.image.pullPolicy Redis® Exporter image pull policy IfNotPresent
metrics.image.pullSecrets Redis® Exporter image pull secrets []
metrics.containerPorts.http Metrics HTTP container port 9121
metrics.startupProbe.enabled Enable startupProbe on Redis® replicas nodes false
metrics.startupProbe.initialDelaySeconds Initial delay seconds for startupProbe 10
metrics.startupProbe.periodSeconds Period seconds for startupProbe 10
metrics.startupProbe.timeoutSeconds Timeout seconds for startupProbe 5
metrics.startupProbe.failureThreshold Failure threshold for startupProbe 5
metrics.startupProbe.successThreshold Success threshold for startupProbe 1
metrics.livenessProbe.enabled Enable livenessProbe on Redis® replicas nodes true
metrics.livenessProbe.initialDelaySeconds Initial delay seconds for livenessProbe 10
metrics.livenessProbe.periodSeconds Period seconds for livenessProbe 10
metrics.livenessProbe.timeoutSeconds Timeout seconds for livenessProbe 5
metrics.livenessProbe.failureThreshold Failure threshold for livenessProbe 5
metrics.livenessProbe.successThreshold Success threshold for livenessProbe 1
metrics.readinessProbe.enabled Enable readinessProbe on Redis® replicas nodes true
metrics.readinessProbe.initialDelaySeconds Initial delay seconds for readinessProbe 5
metrics.readinessProbe.periodSeconds Period seconds for readinessProbe 10
metrics.readinessProbe.timeoutSeconds Timeout seconds for readinessProbe 1
metrics.readinessProbe.failureThreshold Failure threshold for readinessProbe 3
metrics.readinessProbe.successThreshold Success threshold for readinessProbe 1
metrics.customStartupProbe Custom startupProbe that overrides the default one {}
metrics.customLivenessProbe Custom livenessProbe that overrides the default one {}
metrics.customReadinessProbe Custom readinessProbe that overrides the default one {}
metrics.command Override default metrics container init command (useful when using custom images) []
metrics.redisTargetHost A way to specify an alternative Redis® hostname localhost
metrics.extraArgs Extra arguments for Redis® exporter, for example: {}
metrics.extraEnvVars Array with extra environment variables to add to Redis® exporter []
metrics.containerSecurityContext.enabled Enabled Redis® exporter containers’ Security Context true
metrics.containerSecurityContext.seLinuxOptions Set SELinux options in container {}
metrics.containerSecurityContext.runAsUser Set Redis® exporter containers’ Security Context runAsUser 1001
metrics.containerSecurityContext.runAsGroup Set Redis® exporter containers’ Security Context runAsGroup 1001
metrics.containerSecurityContext.runAsNonRoot Set Redis® exporter containers’ Security Context runAsNonRoot true
metrics.containerSecurityContext.allowPrivilegeEscalation Set Redis® exporter containers’ Security Context allowPrivilegeEscalation false
metrics.containerSecurityContext.readOnlyRootFilesystem Set container’s Security Context read-only root filesystem true
metrics.containerSecurityContext.seccompProfile.type Set Redis® exporter containers’ Security Context seccompProfile RuntimeDefault
metrics.containerSecurityContext.capabilities.drop Set Redis® exporter containers’ Security Context capabilities to drop ["ALL"]
metrics.extraVolumes Optionally specify extra list of additional volumes for the Redis® metrics sidecar []
metrics.extraVolumeMounts Optionally specify extra list of additional volumeMounts for the Redis® metrics sidecar []
metrics.resourcesPreset Set container resources according to one common preset (allowed values: none, nano, micro, small, medium, large, xlarge, 2xlarge). This is ignored if metrics.resources is set (metrics.resources is recommended for production). nano
metrics.resources Set container requests and limits for different resources like CPU or memory (essential for production workloads) {}
metrics.podLabels Extra labels for Redis® exporter pods {}
metrics.podAnnotations Annotations for Redis® exporter pods {}
metrics.service.enabled Create Service resource(s) for scraping metrics using PrometheusOperator ServiceMonitor, can be disabled when using a PodMonitor true
metrics.service.type Redis® exporter service type ClusterIP
metrics.service.ports.http Redis® exporter service port 9121
metrics.service.externalTrafficPolicy Redis® exporter service external traffic policy Cluster
metrics.service.extraPorts Extra ports to expose (normally used with the sidecar value) []
metrics.service.loadBalancerIP Redis® exporter service Load Balancer IP ""
metrics.service.loadBalancerClass exporter service Load Balancer class if service type is LoadBalancer (optional, cloud specific) ""
metrics.service.loadBalancerSourceRanges Redis® exporter service Load Balancer sources []
metrics.service.annotations Additional custom annotations for Redis® exporter service {}
metrics.service.clusterIP Redis® exporter service Cluster IP ""
metrics.serviceMonitor.port the service port to scrape metrics from http-metrics
metrics.serviceMonitor.enabled Create ServiceMonitor resource(s) for scraping metrics using PrometheusOperator false
metrics.serviceMonitor.namespace The namespace in which the ServiceMonitor will be created ""
metrics.serviceMonitor.interval The interval at which metrics should be scraped 30s
metrics.serviceMonitor.scrapeTimeout The timeout after which the scrape is ended ""
metrics.serviceMonitor.relabelings Metrics RelabelConfigs to apply to samples before scraping. []
metrics.serviceMonitor.metricRelabelings Metrics RelabelConfigs to apply to samples before ingestion. []
metrics.serviceMonitor.honorLabels Specify honorLabels parameter to add the scrape endpoint false
metrics.serviceMonitor.additionalLabels Additional labels that can be used so ServiceMonitor resource(s) can be discovered by Prometheus {}
metrics.serviceMonitor.podTargetLabels Labels from the Kubernetes pod to be transferred to the created metrics []
metrics.serviceMonitor.sampleLimit Limit of how many samples should be scraped from every Pod false
metrics.serviceMonitor.targetLimit Limit of how many targets should be scraped false
metrics.serviceMonitor.additionalEndpoints Additional endpoints to scrape (e.g sentinel) []
metrics.podMonitor.port the pod port to scrape metrics from metrics
metrics.podMonitor.enabled Create PodMonitor resource(s) for scraping metrics using PrometheusOperator false
metrics.podMonitor.namespace The namespace in which the PodMonitor will be created ""
metrics.podMonitor.interval The interval at which metrics should be scraped 30s
metrics.podMonitor.scrapeTimeout The timeout after which the scrape is ended ""
metrics.podMonitor.relabelings Metrics RelabelConfigs to apply to samples before scraping. []
metrics.podMonitor.metricRelabelings Metrics RelabelConfigs to apply to samples before ingestion. []
metrics.podMonitor.honorLabels Specify honorLabels parameter to add the scrape endpoint false
metrics.podMonitor.additionalLabels Additional labels that can be used so PodMonitor resource(s) can be discovered by Prometheus {}
metrics.podMonitor.podTargetLabels Labels from the Kubernetes pod to be transferred to the created metrics []
metrics.podMonitor.sampleLimit Limit of how many samples should be scraped from every Pod false
metrics.podMonitor.targetLimit Limit of how many targets should be scraped false
metrics.podMonitor.additionalEndpoints Additional endpoints to scrape (e.g sentinel) []
metrics.prometheusRule.enabled Create a custom prometheusRule Resource for scraping metrics using PrometheusOperator false
metrics.prometheusRule.namespace The namespace in which the prometheusRule will be created ""
metrics.prometheusRule.additionalLabels Additional labels for the prometheusRule {}
metrics.prometheusRule.rules Custom Prometheus rules []

Init Container Parameters

Name Description Value
volumePermissions.enabled Enable init container that changes the owner/group of the PV mount point to runAsUser:fsGroup false
volumePermissions.image.registry OS Shell + Utility image registry REGISTRY_NAME
volumePermissions.image.repository OS Shell + Utility image repository REPOSITORY_NAME/os-shell
volumePermissions.image.digest OS Shell + Utility image digest in the way sha256:aa…. Please note this parameter, if set, will override the tag ""
volumePermissions.image.pullPolicy OS Shell + Utility image pull policy IfNotPresent
volumePermissions.image.pullSecrets OS Shell + Utility image pull secrets []
volumePermissions.resourcesPreset Set container resources according to one common preset (allowed values: none, nano, micro, small, medium, large, xlarge, 2xlarge). This is ignored if volumePermissions.resources is set (volumePermissions.resources is recommended for production). nano
volumePermissions.resources Set container requests and limits for different resources like CPU or memory (essential for production workloads) {}
volumePermissions.containerSecurityContext.seLinuxOptions Set SELinux options in container {}
volumePermissions.containerSecurityContext.runAsUser Set init container’s Security Context runAsUser 0
volumePermissions.extraEnvVars Array with extra environment variables to add to volume permissions init container. []
kubectl.image.registry Kubectl image registry REGISTRY_NAME
kubectl.image.repository Kubectl image repository REPOSITORY_NAME/kubectl
kubectl.image.digest Kubectl image digest in the way sha256:aa…. Please note this parameter, if set, will override the tag ""
kubectl.image.pullPolicy Kubectl image pull policy IfNotPresent
kubectl.image.pullSecrets Kubectl pull secrets []
kubectl.command kubectl command to execute ["/opt/bitnami/scripts/kubectl-scripts/update-master-label.sh"]
kubectl.containerSecurityContext.enabled Enabled kubectl containers’ Security Context true
kubectl.containerSecurityContext.seLinuxOptions Set SELinux options in container {}
kubectl.containerSecurityContext.runAsUser Set kubectl containers’ Security Context runAsUser 1001
kubectl.containerSecurityContext.runAsGroup Set kubectl containers’ Security Context runAsGroup 1001
kubectl.containerSecurityContext.runAsNonRoot Set kubectl containers’ Security Context runAsNonRoot true
kubectl.containerSecurityContext.allowPrivilegeEscalation Set kubectl containers’ Security Context allowPrivilegeEscalation false
kubectl.containerSecurityContext.readOnlyRootFilesystem Set container’s Security Context read-only root filesystem true
kubectl.containerSecurityContext.seccompProfile.type Set kubectl containers’ Security Context seccompProfile RuntimeDefault
kubectl.containerSecurityContext.capabilities.drop Set kubectl containers’ Security Context capabilities to drop ["ALL"]
kubectl.resources.limits The resources limits for the kubectl containers {}
kubectl.resources.requests The requested resources for the kubectl containers {}
sysctl.enabled Enable init container to modify Kernel settings false
sysctl.image.registry OS Shell + Utility image registry REGISTRY_NAME
sysctl.image.repository OS Shell + Utility image repository REPOSITORY_NAME/os-shell
sysctl.image.digest OS Shell + Utility image digest in the way sha256:aa…. Please note this parameter, if set, will override the tag ""
sysctl.image.pullPolicy OS Shell + Utility image pull policy IfNotPresent
sysctl.image.pullSecrets OS Shell + Utility image pull secrets []
sysctl.command Override default init-sysctl container command (useful when using custom images) []
sysctl.mountHostSys Mount the host /sys folder to /host-sys false
sysctl.resourcesPreset Set container resources according to one common preset (allowed values: none, nano, micro, small, medium, large, xlarge, 2xlarge). This is ignored if sysctl.resources is set (sysctl.resources is recommended for production). nano
sysctl.resources Set container requests and limits for different resources like CPU or memory (essential for production workloads) {}

useExternalDNS Parameters

Name Description Value
useExternalDNS.enabled Enable various syntax that would enable external-dns to work. Note this requires a working installation of external-dns to be usable. false
useExternalDNS.additionalAnnotations Extra annotations to be utilized when external-dns is enabled. {}
useExternalDNS.annotationKey The annotation key utilized when external-dns is enabled. Setting this to false will disable annotations. external-dns.alpha.kubernetes.io/
useExternalDNS.suffix The DNS suffix utilized when external-dns is enabled. Note that we prepend the suffix with the full name of the release. ""

Specify each parameter using the --set key=value[,key=value] argument to helm install. For example,

helm install my-release \
  --set auth.password=secretpassword \
    oci://REGISTRY_NAME/REPOSITORY_NAME/redis

Note: You need to substitute the placeholders REGISTRY_NAME and REPOSITORY_NAME with a reference to your Helm chart registry and repository. For example, in the case of Bitnami, you need to use REGISTRY_NAME=registry-1.docker.io and REPOSITORY_NAME=bitnamicharts.

The above command sets the Redis® server password to secretpassword.

NOTE: Once this chart is deployed, it is not possible to change the application’s access credentials, such as usernames or passwords, using Helm. To change these application credentials after deployment, delete any persistent volumes (PVs) used by the chart and re-deploy it, or use the application’s built-in administrative tools if available.

Alternatively, a YAML file that specifies the values for the parameters can be provided while installing the chart. For example,

helm install my-release -f values.yaml oci://REGISTRY_NAME/REPOSITORY_NAME/redis

Note: You need to substitute the placeholders REGISTRY_NAME and REPOSITORY_NAME with a reference to your Helm chart registry and repository. For example, in the case of Bitnami, you need to use REGISTRY_NAME=registry-1.docker.io and REPOSITORY_NAME=bitnamicharts. Tip: You can use the default values.yaml

Troubleshooting

Find more information about how to deal with common errors related to Bitnami’s Helm charts in this troubleshooting guide.

Upgrading

A major chart version change (like v1.2.3 -> v2.0.0) indicates that there is an incompatible breaking change needing manual actions.

RDB compatibility

It’s common to have RDB format changes across Redis® releases where we see backward compatibility but no forward compatibility. For example, v7.0 can load an RDB created by v6.2 , but the opposite is not true. When that’s the case, the rolling update can cause replicas to temporarily stop synchronizing while they are running a lower version than master. For example, on a rolling update master-0 and replica-2 are updated first from version v6.2 to v7.0; replica-0 and replica-1 won’t be able to start a full sync with master-0 because they are still running v6.2 and can’t support the RDB format from version 7.0 that master is now using. This issue can be mitigated by splitting the upgrade into two stages: one for all replicas and another for any master.

  • Stage 1 (replicas only, as there’s no master with an ordinal higher than 99): helm upgrade oci://REGISTRY_NAME/REPOSITORY_NAME/redis --set master.updateStrategy.rollingUpdate.partition=99
  • Stage 2 (anything else that is not up to date, in this case only master): helm upgrade oci://REGISTRY_NAME/REPOSITORY_NAME/redis

To 20.0.0

This major version updates the Redis® docker image version used from 7.2 to 7.4, the new stable version. There are no major changes in the chart, but we recommend checking the Redis® 7.4 release notes before upgrading.

To 19.0.0

This major bump changes the following security defaults:

  • runAsGroup is changed from 0 to 1001
  • readOnlyRootFilesystem is set to true
  • resourcesPreset is changed from none to the minimum size working in our test suites (NOTE: resourcesPreset is not meant for production usage, but resources adapted to your use case).
  • global.compatibility.openshift.adaptSecurityContext is changed from disabled to auto.

This could potentially break any customization or init scripts used in your deployment. If this is the case, change the default values to the previous ones.

To 18.0.0

This major version updates the Redis® docker image version used from 7.0 to 7.2, the new stable version. There are no major changes in the chart, but we recommend checking the Redis® 7.2 release notes before upgrading.

NOTE: Due to an error in our release process, versions higher or equal than 17.15.4 already use 7.2 by default.

To 17.0.0

This major version updates the Redis® docker image version used from 6.2 to 7.0, the new stable version. There are no major changes in the chart, but we recommend checking the Redis® 7.0 release notes before upgrading.

To 16.0.0

This major release renames several values in this chart and adds missing features, in order to be inline with the rest of assets in the Bitnami charts repository.

Affected values:

  • master.service.port renamed as master.service.ports.redis.
  • master.service.nodePort renamed as master.service.nodePorts.redis.
  • replica.service.port renamed as replica.service.ports.redis.
  • replica.service.nodePort renamed as replica.service.nodePorts.redis.
  • sentinel.service.port renamed as sentinel.service.ports.redis.
  • sentinel.service.sentinelPort renamed as sentinel.service.ports.sentinel.
  • master.containerPort renamed as master.containerPorts.redis.
  • replica.containerPort renamed as replica.containerPorts.redis.
  • sentinel.containerPort renamed as sentinel.containerPorts.sentinel.
  • master.spreadConstraints renamed as master.topologySpreadConstraints
  • replica.spreadConstraints renamed as replica.topologySpreadConstraints

To 15.0.0

The parameter to enable the usage of StaticIDs was removed. The behavior is to always use StaticIDs.

To 14.8.0

The Redis® sentinel exporter was removed in this version because the upstream project was deprecated. The regular Redis® exporter is included in the sentinel scenario as usual.

To 14.0.0

  • Several parameters were renamed or disappeared in favor of new ones on this major version:
    • The term slave has been replaced by the term replica. Therefore, parameters prefixed with slave are now prefixed with replicas.
    • Credentials parameter are reorganized under the auth parameter.
    • cluster.enabled parameter is deprecated in favor of architecture parameter that accepts two values: standalone and replication.
    • securityContext.* is deprecated in favor of XXX.podSecurityContext and XXX.containerSecurityContext.
    • sentinel.metrics.* parameters are deprecated in favor of metrics.sentinel.* ones.
  • New parameters to add custom command, environment variables, sidecars, init containers, etc. were added.
  • Chart labels were adapted to follow the Helm charts standard labels.
  • values.yaml metadata was adapted to follow the format supported by Readme Generator for Helm.

Consequences:

Backwards compatibility is not guaranteed. To upgrade to 14.0.0, install a new release of the Redis® chart, and migrate the data from your previous release. You have 2 alternatives to do so:

  • Create a backup of the database, and restore it on the new release as explained in the Backup and restore section.
  • Reuse the PVC used to hold the master data on your previous release. To do so, use the master.persistence.existingClaim parameter. The following example assumes that the release name is redis:
helm install redis oci://REGISTRY_NAME/REPOSITORY_NAME/redis --set auth.password=[PASSWORD] --set master.persistence.existingClaim=[EXISTING_PVC]

Note: You need to substitute the placeholders REGISTRY_NAME and REPOSITORY_NAME with a reference to your Helm chart registry and repository. For example, in the case of Bitnami, you need to use REGISTRY_NAME=registry-1.docker.io and REPOSITORY_NAME=bitnamicharts.

| Note: you need to substitute the placeholder [EXISTING_PVC] with the name of the PVC used on your previous release, and [PASSWORD] with the password used in your previous release.

To 13.0.0

This major version updates the Redis® docker image version used from 6.0 to 6.2, the new stable version. There are no major changes in the chart and there shouldn’t be any breaking changes in it as 6.2 is basically a stricter superset of 6.0. For more information, please refer to Redis® 6.2 release notes.

To 12.3.0

This version also introduces bitnami/common, a library chart as a dependency. More documentation about this new utility could be found here. Please, make sure that you have updated the chart dependencies before executing any upgrade.

To 12.0.0

On November 13, 2020, Helm v2 support was formally finished, this major version is the result of the required changes applied to the Helm Chart to be able to incorporate the different features added in Helm v3 and to be consistent with the Helm project itself regarding the Helm v2 EOL.

What changes were introduced in this major version?

  • Previous versions of this Helm Chart use apiVersion: v1 (installable by both Helm 2 and 3), this Helm Chart was updated to apiVersion: v2 (installable by Helm 3 only). Here you can find more information about the apiVersion field.
  • The different fields present in the Chart.yaml file has been ordered alphabetically in a homogeneous way for all the Bitnami Helm Charts

Considerations when upgrading to this version

  • If you want to upgrade to this version from a previous one installed with Helm v3, you shouldn’t face any issues
  • If you want to upgrade to this version using Helm v2, this scenario is not supported as this version doesn’t support Helm v2 anymore
  • If you installed the previous version with Helm v2 and wants to upgrade to this version with Helm v3, please refer to the official Helm documentation about migrating from Helm v2 to v3

Useful links

To 11.0.0

When using sentinel, a new statefulset called -node was introduced. This will break upgrading from a previous version where the statefulsets are called master and slave. Hence the PVC will not match the new naming and won’t be reused. If you want to keep your data, you will need to perform a backup and then a restore the data in this new version.

When deployed with sentinel enabled, only a group of nodes is deployed and the master/slave role is handled in the group. To avoid breaking the compatibility, the settings for this nodes are given through the slave.xxxx parameters in values.yaml

To 10.0.0

For releases with usePassword: true, the value sentinel.usePassword controls whether the password authentication also applies to the sentinel port. This defaults to true for a secure configuration, however it is possible to disable to account for the following cases:

  • Using a version of redis-sentinel prior to 5.0.1 where the authentication feature was introduced.
  • Where redis clients need to be updated to support sentinel authentication.

If using a master/slave topology, or with usePassword: false, no action is required.

To 9.0.0

The metrics exporter has been changed from a separate deployment to a sidecar container, due to the latest changes in the Redis® exporter code. Check the official page for more information. The metrics container image was changed from oliver006/redis_exporter to bitnami/redis-exporter (Bitnami’s maintained package of oliver006/redis_exporter).

To 8.0.18

For releases with metrics.enabled: true the default tag for the exporter image is now v1.x.x. This introduces many changes including metrics names. You’ll want to use this dashboard now. Please see the redis_exporter github page for more details.

To 7.0.0

This version causes a change in the Redis® Master StatefulSet definition, so the command helm upgrade would not work out of the box. As an alternative, one of the following could be done:

  • Recommended: Create a clone of the Redis® Master PVC (for example, using projects like this one). Then launch a fresh release reusing this cloned PVC.
helm install my-release oci://REGISTRY_NAME/REPOSITORY_NAME/redis --set persistence.existingClaim=<NEW PVC>

Note: You need to substitute the placeholders REGISTRY_NAME and REPOSITORY_NAME with a reference to your Helm chart registry and repository. For example, in the case of Bitnami, you need to use REGISTRY_NAME=registry-1.docker.io and REPOSITORY_NAME=bitnamicharts.

  • Alternative (not recommended, do at your own risk): helm delete --purge does not remove the PVC assigned to the Redis® Master StatefulSet. As a consequence, the following commands can be done to upgrade the release
helm delete --purge <RELEASE>
helm install <RELEASE> oci://REGISTRY_NAME/REPOSITORY_NAME/redis

Note: You need to substitute the placeholders REGISTRY_NAME and REPOSITORY_NAME with a reference to your Helm chart registry and repository. For example, in the case of Bitnami, you need to use REGISTRY_NAME=registry-1.docker.io and REPOSITORY_NAME=bitnamicharts.

Previous versions of the chart were not using persistence in the slaves, so this upgrade would add it to them. Another important change is that no values are inherited from master to slaves. For example, in 6.0.0 slaves.readinessProbe.periodSeconds, if empty, would be set to master.readinessProbe.periodSeconds. This approach lacked transparency and was difficult to maintain. From now on, all the slave parameters must be configured just as it is done with the masters.

Some values have changed as well:

  • master.port and slave.port have been changed to redisPort (same value for both master and slaves)
  • master.securityContext and slave.securityContext have been changed to securityContext(same values for both master and slaves)

By default, the upgrade will not change the cluster topology. In case you want to use Redis® Sentinel, you must explicitly set sentinel.enabled to true.

To 6.0.0

Previous versions of the chart were using an init-container to change the permissions of the volumes. This was done in case the securityContext directive in the template was not enough for that (for example, with cephFS). In this new version of the chart, this container is disabled by default (which should not affect most of the deployments). If your installation still requires that init container, execute helm upgrade with the --set volumePermissions.enabled=true.

To 5.0.0

The default image in this release may be switched out for any image containing the redis-server and redis-cli binaries. If redis-server is not the default image ENTRYPOINT, master.command must be specified.

Breaking changes

  • master.args and slave.args are removed. Use master.command or slave.command instead in order to override the image entrypoint, or master.extraFlags to pass additional flags to redis-server.
  • disableCommands is now interpreted as an array of strings instead of a string of comma separated values.
  • master.persistence.path now defaults to /data.

To 4.0.0

This version removes the chart label from the spec.selector.matchLabels which is immutable since StatefulSet apps/v1beta2. It has been inadvertently added, causing any subsequent upgrade to fail. See https://github.com/helm/charts/issues/7726.

It also fixes https://github.com/helm/charts/issues/7726 where a deployment extensions/v1beta1 can not be upgraded if spec.selector is not explicitly set.

Finally, it fixes https://github.com/helm/charts/issues/7803 by removing mutable labels in spec.VolumeClaimTemplate.metadata.labels so that it is upgradable.

In order to upgrade, delete the Redis® StatefulSet before upgrading:

kubectl delete statefulsets.apps --cascade=false my-release-redis-master

And edit the Redis® slave (and metrics if enabled) deployment:

kubectl patch deployments my-release-redis-slave --type=json -p='[{"op": "remove", "path": "/spec/selector/matchLabels/chart"}]'
kubectl patch deployments my-release-redis-metrics --type=json -p='[{"op": "remove", "path": "/spec/selector/matchLabels/chart"}]'

License

Copyright © 2024 Broadcom. The term “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.

Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

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