Bitnami LMS powered by Moodle(TM) LMS

Moodle(TM) LMS is an open source online Learning Management System widely used at universities, schools, and corporations. It is modular and highly adaptable to any type of online learning.

Overview of Bitnami LMS powered by Moodle™ LMS

Disclaimer: The respective trademarks mentioned in the offering are owned by the respective companies. We do not provide commercial license of any of these products. This listing has an open source license. Moodle(TM) LMS is run and maintained by Moodle HQ, that is a completely and separate project from Bitnami.

TL;DR

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

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 Moodle™ deployment on a Kubernetes cluster using the Helm package manager.

It also packages the Bitnami MariaDB chart which is required for bootstrapping a MariaDB deployment for the database requirements of the Moodle™ application.

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

Prerequisites

Kubernetes 1.23+
Helm 3.8.0+
PV provisioner support in the underlying infrastructure
ReadWriteMany volumes for deployment scaling

Installing the Chart

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

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

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 Moodle™ 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.

Ingress without TLS

For using ingress (example without TLS):

ingress.enabled=True
ingress.hosts[0]=moodle.domain.com
serviceType=ClusterIP
moodleUsername=admin
moodlePassword=password
mariadb.mariadbRootPassword=secretpassword

These are the 3 mandatory parameters when Ingress is desired: ingress.enabled=True, ingress.hosts[0]=moodle.domain.com and serviceType=ClusterIP

Ingress TLS

If your cluster allows automatic creation/retrieval of TLS certificates (e.g. kube-lego), please refer to the documentation for that mechanism.

To manually configure TLS, first create/retrieve a key & certificate pair for the address(es) you wish to protect. Then create a TLS secret (named moodle-server-tls in this example) in the namespace. Include the secret’s name, along with the desired hostnames, in the Ingress TLS section of your custom values.yaml file:

ingress:
  ## If true, Moodle(TM) server Ingress will be created
  ##
  enabled: true

  ## Moodle(TM) server Ingress annotations
  ##
  annotations: {}
  #   kubernetes.io/ingress.class: nginx
  #   kubernetes.io/tls-acme: 'true'

  ## Moodle(TM) server Ingress hostnames
  ## Must be provided if Ingress is enabled
  ##
  hosts:
    - moodle.domain.com

  ## Moodle(TM) server Ingress TLS configuration
  ## Secrets must be manually created in the namespace
  ##
  tls:
    - secretName: moodle-server-tls
      hosts:
        - moodle.domain.com

Persistence

The Bitnami Container Image for Moodle™ stores the Moodle™ data and configurations at the /bitnami/moodle and /bitnami/apache paths of the container.

Persistent Volume Claims are used to keep the data across deployments. This is known to work in GCE, AWS, vpshere, and minikube. See the Parameters section to configure the PVC or to disable persistence. You may want to review the PV reclaim policy and update as required. By default, it’s set to delete, and when Moodle™ is uninstalled, data is also removed.

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.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`	Force target Kubernetes version (using Helm capabilities if not set)	`""`
`nameOverride`	String to partially override moodle.fullname template	`""`
`fullnameOverride`	String to fully override moodle.fullname template	`""`
`commonAnnotations`	Common annotations to add to all Harbor resources (sub-charts are not considered). Evaluated as a template	`{}`
`commonLabels`	Common labels to add to all Harbor resources (sub-charts are not considered). Evaluated as a template	`{}`
`extraDeploy`	Array with extra yaml to deploy with the chart. Evaluated as a template	`[]`

Moodle™ parameters

Name	Description	Value
`image.registry`	Moodle image registry	`REGISTRY_NAME`
`image.repository`	Moodle image repository	`REPOSITORY_NAME/moodle`
`image.digest`	Moodle image digest in the way sha256:aa…. Please note this parameter, if set, will override the tag	`""`
`image.pullPolicy`	Moodle image pull policy	`IfNotPresent`
`image.pullSecrets`	Specify docker-registry secret names as an array	`[]`
`image.debug`	Specify if debug logs should be enabled	`false`
`replicaCount`	Number of Moodle replicas (requires ReadWriteMany PVC support)	`1`
`autoscaling.enabled`	Enable Horizontal POD autoscaling for Moodle™	`false`
`autoscaling.minReplicas`	Minimum number of Moodle™ replicas	`1`
`autoscaling.maxReplicas`	Maximum number of Moodle™ replicas	`10`
`autoscaling.targetCPU`	Target CPU utilization percentage	`80`
`autoscaling.targetMemory`	Target Memory utilization percentage	`80`
`moodleSkipInstall`	Skip Moodle™ installation wizard. Useful for migrations and restoring from SQL dump	`false`
`moodleSiteName`	Site name	`""`
`moodleLang`	Site language	`""`
`moodleUsername`	User of the application	`user`
`moodlePassword`	Application password	`""`
`moodleEmail`	Admin email	`[email protected]`
`allowEmptyPassword`	Allow DB blank passwords	`true`
`command`	Override default container command (useful when using custom images)	`[]`
`args`	Override default container args (useful when using custom images)	`[]`
`updateStrategy.type`	Update strategy - only really applicable for deployments with RWO PVs attached	`RollingUpdate`
`extraEnvVars`	An array to add extra env vars	`[]`
`extraEnvVarsCM`	ConfigMap with extra environment variables	`""`
`extraEnvVarsSecret`	Secret with extra environment variables (in case of sensitive data)	`""`
`extraVolumes`	Array of extra volumes to be added to the deployment (evaluated as template). Requires setting `extraVolumeMounts`	`[]`
`extraVolumeMounts`	Array of extra volume mounts to be added to the container (evaluated as template). Normally used with `extraVolumes`.	`[]`
`initContainers`	Extra init containers to add to the deployment	`[]`
`pdb.create`	Enable/disable a Pod Disruption Budget creation	`true`
`pdb.minAvailable`	Minimum number/percentage of pods that should remain scheduled	`""`
`pdb.maxUnavailable`	Maximum number/percentage of pods that may be made unavailable. Defaults to `1` if both `pdb.minAvailable` and `pdb.maxUnavailable` are empty.	`""`
`sidecars`	Extra sidecar containers to add to the deployment	`[]`
`automountServiceAccountToken`	Mount Service Account token in pod	`false`
`hostAliases`	Moodle™ pods host aliases	`[]`
`tolerations`	Tolerations for pod assignment	`[]`
`priorityClassName`	Moodle™ pods’ priorityClassName	`""`
`schedulerName`	Name of the k8s scheduler (other than default)	`""`
`topologySpreadConstraints`	Topology Spread Constraints for pod assignment	`[]`
`existingSecret`	Name of a secret with the application password	`""`
`smtpHost`	SMTP host	`""`
`smtpPort`	SMTP port	`""`
`smtpUser`	SMTP user	`""`
`smtpPassword`	SMTP password	`""`
`smtpProtocol`	SMTP Protocol (options: ssl,tls, nil)	`""`
`containerPorts`	Container ports	`{}`
`extraContainerPorts`	Optionally specify extra list of additional ports for Moodle&trade container(s)	`[]`
`sessionAffinity`	Control where client requests go, to the same pod or round-robin	`None`
`persistence.enabled`	Enable persistence using PVC	`true`
`persistence.customStorageClass`	Create a custom storage class	`{}`
`persistence.storageClass`	PVC Storage Class for Moodle	`""`
`persistence.accessModes`	PVC Access Mode for Moodle	`["ReadWriteOnce"]`
`persistence.size`	PVC Storage Request for Moodle	`8Gi`
`persistence.existingClaim`	An Existing PVC name	`""`
`persistence.hostPath`	Host mount path for Moodle	`""`
`persistence.annotations`	Persistent Volume Claim annotations	`{}`
`podAffinityPreset`	Pod affinity preset	`""`
`podAntiAffinityPreset`	Pod anti-affinity preset	`soft`
`nodeAffinityPreset.type`	Node affinity type	`""`
`nodeAffinityPreset.key`	Node label key to match	`""`
`nodeAffinityPreset.values`	Node label values to match	`[]`
`affinity`	Map of node/pod affinities	`{}`
`nodeSelector`	Node labels for pod assignment	`{}`
`resourcesPreset`	Set container resources according to one common preset (allowed values: none, nano, micro, small, medium, large, xlarge, 2xlarge). This is ignored if resources is set (resources is recommended for production).	`micro`
`resources`	Set container requests and limits for different resources like CPU or memory (essential for production workloads)	`{}`
`podSecurityContext.enabled`	Enable Moodle™ pods’ Security Context	`true`
`podSecurityContext.fsGroupChangePolicy`	Set filesystem group change policy	`Always`
`podSecurityContext.sysctls`	Set kernel settings using the sysctl interface	`[]`
`podSecurityContext.supplementalGroups`	Set filesystem extra groups	`[]`
`podSecurityContext.fsGroup`	Moodle™ pods’ group ID	`1001`
`containerSecurityContext.enabled`	Enabled containers’ Security Context	`true`
`containerSecurityContext.seLinuxOptions`	Set SELinux options in container	`{}`
`containerSecurityContext.runAsUser`	Set containers’ Security Context runAsUser	`1001`
`containerSecurityContext.runAsGroup`	Set containers’ Security Context runAsGroup	`0`
`containerSecurityContext.runAsNonRoot`	Set container’s Security Context runAsNonRoot	`true`
`containerSecurityContext.privileged`	Set container’s Security Context privileged	`false`
`containerSecurityContext.readOnlyRootFilesystem`	Set container’s Security Context readOnlyRootFilesystem	`false`
`containerSecurityContext.allowPrivilegeEscalation`	Set container’s Security Context allowPrivilegeEscalation	`false`
`containerSecurityContext.capabilities.drop`	List of capabilities to be dropped	`["ALL"]`
`containerSecurityContext.seccompProfile.type`	Set container’s Security Context seccomp profile	`RuntimeDefault`
`startupProbe.enabled`	Enable startupProbe	`false`
`startupProbe.path`	Request path for startupProbe	`/login/index.php`
`startupProbe.initialDelaySeconds`	Initial delay seconds for startupProbe	`30`
`startupProbe.periodSeconds`	Period seconds for startupProbe	`10`
`startupProbe.timeoutSeconds`	Timeout seconds for startupProbe	`5`
`startupProbe.failureThreshold`	Failure threshold for startupProbe	`60`
`startupProbe.successThreshold`	Success threshold for startupProbe	`1`
`livenessProbe.enabled`	Enable livenessProbe	`true`
`livenessProbe.initialDelaySeconds`	Initial delay seconds for livenessProbe	`600`
`livenessProbe.periodSeconds`	Period seconds for livenessProbe	`10`
`livenessProbe.timeoutSeconds`	Timeout seconds for livenessProbe	`5`
`livenessProbe.failureThreshold`	Failure threshold for livenessProbe	`6`
`livenessProbe.successThreshold`	Success threshold for livenessProbe	`1`
`readinessProbe.enabled`	Enable readinessProbe	`true`
`readinessProbe.path`	Request path for readinessProbe	`/login/index.php`
`readinessProbe.initialDelaySeconds`	Initial delay seconds for readinessProbe	`30`
`readinessProbe.periodSeconds`	Period seconds for readinessProbe	`5`
`readinessProbe.timeoutSeconds`	Timeout seconds for readinessProbe	`3`
`readinessProbe.failureThreshold`	Failure threshold for readinessProbe	`6`
`readinessProbe.successThreshold`	Success threshold for readinessProbe	`1`
`customStartupProbe`	Override default startup probe	`{}`
`customLivenessProbe`	Override default liveness probe	`{}`
`customReadinessProbe`	Override default readiness probe	`{}`
`lifecycleHooks`	LifecycleHook to set additional configuration at startup Evaluated as a template	`""`
`podAnnotations`	Pod annotations	`{}`
`podLabels`	Add additional labels to the pod (evaluated as a template)	`{}`
`serviceAccount.create`	Enable creation of ServiceAccount for Moodle pod	`true`
`serviceAccount.name`	The name of the ServiceAccount to use.	`""`
`serviceAccount.automountServiceAccountToken`	Allows auto mount of ServiceAccountToken on the serviceAccount created	`false`
`serviceAccount.annotations`	Additional custom annotations for the ServiceAccount	`{}`

Traffic Exposure Parameters

Name	Description	Value
`service.type`	Service type	`LoadBalancer`
`service.ports.http`	Service HTTP port	`80`
`service.ports.https`	Service HTTPS port	`443`
`service.nodePorts.http`	Kubernetes HTTP node port	`""`
`service.nodePorts.https`	Kubernetes HTTPS node port	`""`
`service.clusterIP`	Service Cluster IP	`""`
`service.loadBalancerSourceRanges`	Service load balancer source ranges	`[]`
`service.loadBalancerIP`	loadBalancerIP for the Moodle™ Service (optional, cloud specific)	`""`
`service.externalTrafficPolicy`	Enable client source IP preservation	`Cluster`
`service.extraPorts`	Extra ports to expose (normally used with the `sidecar` value)	`[]`
`service.annotations`	Additional custom annotations for Moodle™ service	`{}`
`service.sessionAffinity`	Session Affinity for Kubernetes service, can be “None” or “ClientIP”	`None`
`service.sessionAffinityConfig`	Additional settings for the sessionAffinity	`{}`
`ingress.enabled`	Set to true to enable ingress record generation	`false`
`ingress.pathType`	Ingress Path type	`ImplementationSpecific`
`ingress.apiVersion`	Override API Version (automatically detected if not set)	`""`
`ingress.hostname`	When the ingress is enabled, a host pointing to this will be created	`moodle.local`
`ingress.path`	The Path to Moodle™. You may need to set this to ‘/*’ in order to use this with ALB ingress controllers.	`/`
`ingress.annotations`	Additional annotations for the Ingress resource. To enable certificate autogeneration, place here your cert-manager annotations.	`{}`
`ingress.tls`	Enable TLS configuration for the hostname defined at ingress.hostname parameter	`false`
`ingress.extraHosts`	The list of additional hostnames to be covered with this ingress record.	`[]`
`ingress.extraPaths`	Any additional arbitrary paths that may need to be added to the ingress under the main host.	`[]`
`ingress.extraTls`	The tls configuration for additional hostnames to be covered with this ingress record.	`[]`
`ingress.secrets`	If you’re providing your own certificates, please use this to add the certificates as secrets	`[]`
`ingress.ingressClassName`	IngressClass that will be be used to implement the Ingress (Kubernetes 1.18+)	`""`
`ingress.extraRules`	Additional rules to be covered with this ingress record	`[]`

Database parameters

Name	Description	Value
`mariadb.enabled`	Whether to deploy a mariadb server to satisfy the applications database requirements	`true`
`mariadb.architecture`	MariaDB architecture (`standalone` or `replication`)	`standalone`
`mariadb.auth.rootPassword`	Password for the MariaDB `root` user	`""`
`mariadb.auth.database`	Database name to create	`bitnami_moodle`
`mariadb.auth.username`	Database user to create	`bn_moodle`
`mariadb.auth.password`	Password for the database	`""`
`mariadb.primary.persistence.enabled`	Enable database persistence using PVC	`true`
`mariadb.primary.persistence.storageClass`	MariaDB primary persistent volume storage Class	`""`
`mariadb.primary.persistence.accessModes`	PVC Access Modes for Moodle™ volume	`["ReadWriteOnce"]`
`mariadb.primary.persistence.size`	Database Persistent Volume Size	`8Gi`
`mariadb.primary.persistence.hostPath`	Set path in case you want to use local host path volumes (not recommended in production)	`""`
`mariadb.primary.persistence.existingClaim`	Name of an existing `PersistentVolumeClaim` for MariaDB primary replicas	`""`
`mariadb.primary.resourcesPreset`	Set container resources according to one common preset (allowed values: none, nano, small, medium, large, xlarge, 2xlarge). This is ignored if primary.resources is set (primary.resources is recommended for production).	`micro`
`mariadb.primary.resources`	Set container requests and limits for different resources like CPU or memory (essential for production workloads)	`{}`
`externalDatabase.type`	Type of the existing database	`""`
`externalDatabase.host`	Host of the existing database	`""`
`externalDatabase.port`	Port of the existing database	`3306`
`externalDatabase.user`	Existing username in the external db	`bn_moodle`
`externalDatabase.password`	Password for the above username	`""`
`externalDatabase.database`	Name of the existing database	`bitnami_moodle`
`externalDatabase.existingSecret`	Name of an existing secret resource containing the DB password	`""`

Volume Permissions parameters

Name	Description	Value
`volumePermissions.enabled`	Enable init container that changes volume permissions in the data directory (for cases where the default k8s `runAsUser` and `fsUser` values do not work)	`false`
`volumePermissions.image.registry`	Init container volume-permissions image registry	`REGISTRY_NAME`
`volumePermissions.image.repository`	Init container volume-permissions image repository	`REPOSITORY_NAME/os-shell`
`volumePermissions.image.digest`	Init container volume-permissions image digest in the way sha256:aa…. Please note this parameter, if set, will override the tag	`""`
`volumePermissions.image.pullPolicy`	Init container volume-permissions image pull policy	`IfNotPresent`
`volumePermissions.image.pullSecrets`	Specify docker-registry secret names as an array	`[]`
`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)	`{}`

Metrics parameters

Name	Description	Value
`metrics.enabled`	Start a side-car prometheus exporter	`false`
`metrics.image.registry`	Apache exporter image registry	`REGISTRY_NAME`
`metrics.image.repository`	Apache exporter image repository	`REPOSITORY_NAME/apache-exporter`
`metrics.image.digest`	Apache exporter image digest in the way sha256:aa…. Please note this parameter, if set, will override the tag	`""`
`metrics.image.pullPolicy`	Apache exporter image pull policy	`IfNotPresent`
`metrics.image.pullSecrets`	Specify docker-registry secret names as an array	`[]`
`metrics.service.type`	Prometheus metrics service type	`LoadBalancer`
`metrics.service.port`	Prometheus metrics service port	`9117`
`metrics.service.loadBalancerIP`	Load Balancer IP if the Prometheus metrics server type is `LoadBalancer`, otherwise leave blank	`""`
`metrics.service.loadBalancerSourceRanges`	Prometheus metrics service service Load Balancer sources	`[]`
`metrics.service.clusterIP`	Prometheus metrics service Cluster IP	`""`
`metrics.service.externalTrafficPolicy`	Prometheus metrics service service external traffic policy	`Cluster`
`metrics.service.annotations`	Annotations for Prometheus Exporter pods. Evaluated as a template.	`{}`
`metrics.service.sessionAffinity`	Session Affinity for Kubernetes service, can be “None” or “ClientIP”	`None`
`metrics.service.sessionAffinityConfig`	Additional settings for the sessionAffinity	`{}`
`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.podAnnotations`	Metrics exporter pod Annotation and Labels	`{}`

Certificate injection parameters

Name	Description	Value
`certificates.customCertificate.certificateSecret`	Secret containing the certificate and key to add	`""`
`certificates.customCertificate.chainSecret.name`	Name of the secret containing the certificate chain	`""`
`certificates.customCertificate.chainSecret.key`	Key of the certificate chain file inside the secret	`""`
`certificates.customCertificate.certificateLocation`	Location in the container to store the certificate	`/etc/ssl/certs/ssl-cert-snakeoil.pem`
`certificates.customCertificate.keyLocation`	Location in the container to store the private key	`/etc/ssl/private/ssl-cert-snakeoil.key`
`certificates.customCertificate.chainLocation`	Location in the container to store the certificate chain	`/etc/ssl/certs/mychain.pem`
`certificates.customCAs`	Defines a list of secrets to import into the container trust store	`[]`
`certificates.command`	Override default container command (useful when using custom images)	`[]`
`certificates.args`	Override default container args (useful when using custom images)	`[]`
`certificates.extraEnvVars`	Container sidecar extra environment variables (eg proxy)	`[]`
`certificates.extraEnvVarsCM`	ConfigMap with extra environment variables	`""`
`certificates.extraEnvVarsSecret`	Secret with extra environment variables	`""`
`certificates.image.registry`	Container sidecar registry	`REGISTRY_NAME`
`certificates.image.repository`	Container sidecar image repository	`REPOSITORY_NAME/os-shell`
`certificates.image.digest`	Container sidecar image digest in the way sha256:aa…. Please note this parameter, if set, will override the tag	`""`
`certificates.image.pullPolicy`	Container sidecar image pull policy	`IfNotPresent`
`certificates.image.pullSecrets`	Container sidecar image pull secrets	`[]`

NetworkPolicy parameters

Name	Description	Value
`networkPolicy.enabled`	Specifies whether a NetworkPolicy should be created	`true`
`networkPolicy.allowExternal`	Don’t require server 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 ingress 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	`{}`

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

helm install my-release \
  --set moodleUsername=admin,moodlePassword=password,mariadb.auth.rootPassword=secretpassword \
    oci://REGISTRY_NAME/REPOSITORY_NAME/moodle

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 Moodle™ administrator account username and password to admin and password respectively. Additionally, it sets the MariaDB root user 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 above parameters can be provided while installing the chart. For example,

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

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

To 23.0.0

This major release bumps the MariaDB version to 11.4. Follow the upstream instructions for upgrading from MariaDB 11.3 to 11.4. No major issues are expected during the upgrade.

To 21.0.0

This major bump changes the following security defaults:

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.
The networkPolicy section has been normalized amongst all Bitnami charts. Compared to the previous approach, the values section has been simplified (check the Parameters section) and now it set to enabled=true by default. Egress traffic is allowed by default and ingress traffic is allowed by all pods but only to the ports set in containerPorts and extraContainerPorts.

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.

Also, this major release bumps the MariaDB chart version to 18.x.x; no major issues are expected during the upgrade.

To 20.0.0

This major release bumps the MariaDB version to 11.2. No major issues are expected during the upgrade.

To 18.0.0

This major release bumps the MariaDB version to 11.1. No major issues are expected during the upgrade.

To 17.0.0

This major release bumps the MariaDB version to 11.0. Follow the upstream instructions for upgrading from MariaDB 10.11 to 11.0. No major issues are expected during the upgrade.

To 15.0.0

This major release bumps the MariaDB version to 10.11. Follow the upstream instructions for upgrading from MariaDB 10.6 to 10.11. No major issues are expected during the upgrade.

To 13.0.0

This major release bumps the MariaDB version to 10.6. Follow the upstream instructions for upgrading from MariaDB 10.5 to 10.6. No major issues are expected during the upgrade.

To 12.0.0

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:

service.port was deprecated. We recommend using service.ports.http instead.
service.httpsPort was deprecated. We recommend using service.ports.https instead.

Additionally updates the MariaDB subchart to it newest major, 10.0.0, which contains similar changes. Check MariaDB Upgrading Notes for more information.

To 11.0.0

This version standardizes the way of defining Ingress rules. When configuring a single hostname for the Ingress rule, set the ingress.hostname value. When defining more than one, set the ingress.extraHosts array. Apart from this case, no issues are expected to appear when upgrading.

To 10.0.0

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.
Move dependency information from the requirements.yaml to the Chart.yaml
After running helm dependency update, a Chart.lock file is generated containing the same structure used in the previous requirements.lock
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 9.0.0

MariaDB dependency version was bumped to a new major version that introduces several incompatilibites. Therefore, backwards compatibility is not guaranteed unless an external database is used. Check MariaDB Upgrading Notes for more information.

To upgrade to 9.0.0, it should be done reusing the PVCs used to hold both the MariaDB and Moodle™ data on your previous release. To do so, follow the instructions below (the following example assumes that the release name is moodle):

NOTE: Please, create a backup of your database before running any of those actions. The steps below would be only valid if your application (e.g. any plugins or custom code) is compatible with MariaDB 10.5.x

Obtain the credentials and the names of the PVCs used to hold both the MariaDB and Moodle™ data on your current release:

export MOODLE_PASSWORD=$(kubectl get secret --namespace default moodle -o jsonpath="{.data.moodle-password}" | base64 -d)
export MARIADB_ROOT_PASSWORD=$(kubectl get secret --namespace default moodle-mariadb -o jsonpath="{.data.mariadb-root-password}" | base64 -d)
export MARIADB_PASSWORD=$(kubectl get secret --namespace default moodle-mariadb -o jsonpath="{.data.mariadb-password}" | base64 -d)
export MARIADB_PVC=$(kubectl get pvc -l app=mariadb,component=master,release=moodle -o jsonpath="{.items[0].metadata.name}")

Upgrade your release (maintaining the version) disabling MariaDB and scaling Moodle™ replicas to 0:

helm upgrade moodle oci://REGISTRY_NAME/REPOSITORY_NAME/moodle --set moodlePassword=$MOODLE_PASSWORD --set replicaCount=0 --set mariadb.enabled=false --version 8.1.6

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.

Finally, upgrade you release to 9.0.0 reusing the existing PVC, and enabling back MariaDB:

helm upgrade moodle oci://REGISTRY_NAME/REPOSITORY_NAME/moodle --set mariadb.primary.persistence.existingClaim=$MARIADB_PVC --set mariadb.auth.rootPassword=$MARIADB_ROOT_PASSWORD --set mariadb.auth.password=$MARIADB_PASSWORD --set moodlePassword=$MOODLE_PASSWORD

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.

You should see the lines below in MariaDB container logs:

$ kubectl logs $(kubectl get pods -l app.kubernetes.io/instance=moodle,app.kubernetes.io/name=mariadb,app.kubernetes.io/component=primary -o jsonpath="{.items[0].metadata.name}")
...
mariadb 12:13:24.98 INFO  ==> Using persisted data
mariadb 12:13:25.01 INFO  ==> Running mysql_upgrade
...

To 8.0.0

The Bitnami Container Image for Moodle™ was updated to support “non-root” user approach, however, it is not enabled by default. The container still runs as the root user and the Apache daemon is started as the daemon user, due to running Cron as a service, which requires running as root.

If you want to run with a non-root user, you need to set podSecurityContext.enabled=true and containerSecurity.context.enabled=true. In addition to that, you will also need to change the default Apache HTTP ports to run as a non-privileged user by setting containerPorts.http and containerPorts.https to a non-privileged port number (higher than 1024, i.e. 8080 and 8443, respectively). Note that, when running as a non-root user, Cron will not supported and therefore scheduled tasks will not be enabled for Moodle™.

This upgrade also adapts the chart to the latest Bitnami good practices. Check the Parameters section for more information.

To 7.0.0

Helm performs a lookup for the object based on its group (apps), version (v1), and kind (Deployment). Also known as its GroupVersionKind, or GVK. Changing the GVK is considered a compatibility breaker from Kubernetes’ point of view, so you cannot “upgrade” those objects to the new GVK in-place. Earlier versions of Helm 3 did not perform the lookup correctly which has since been fixed to match the spec.

In https://github.com/helm/charts/pull/17301 the apiVersion of the deployment resources was updated to apps/v1 in tune with the api’s deprecated, resulting in compatibility breakage.

This major version signifies this change.

To 3.0.0

Backwards compatibility is not guaranteed unless you modify the labels used on the chart’s deployments. Use the workaround below to upgrade from versions previous to 3.0.0. The following example assumes that the release name is moodle:

kubectl patch deployment moodle-moodle --type=json -p='[{"op": "remove", "path": "/spec/selector/matchLabels/chart"}]'
kubectl delete statefulset moodle-mariadb --cascade=false

License

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.