Redis Telegraf Input Plugin

To deploy Redis Telegraf Input Plugin using the YAML file, you have to perform the following actions.

Procedure

• ♦ Deploy the following yaml in kubernetes cluster.
  Note: Ensure that omit_hostname is set to true under agent and podname label is set under global_tags.

  apiVersion: v1
  kind: ConfigMap
  metadata:
   name: telegraf-config
  data:
    telegraf.conf: |+
      [global_tags]
      podname = "$POD_NAME"
      [agent]
      interval = "10s"
      round_interval = true
      metric_batch_size = 1000
      metric_buffer_limit = 10000
      collection_jitter = "0s"
      flush_interval = "10s"
      flush_jitter = "0s"
      precision = ""
      quiet = false
      hostname = ""
      omit_hostname = true
      [[outputs.prometheus_client]]
        listen = ":9273"
      [[inputs.redis]]
        servers = ["tcp://localhost:6379"]
  ---
  apiVersion: apps/v1
  kind: Deployment
  metadata:
    name: redis
  spec:
    replicas: 1
    selector:
      matchLabels:
        app: redis
    template:
      metadata:
        labels:
          app: redis
        annotations:
          telegraf.influxdata.com/inputs: |+
            [[inputs.redis]]
              servers = ["tcp://localhost:6379"]
          telegraf.influxdata.com/class: app
      spec:
        containers:
        - name: redis
          image: redis:4
          resources:
            requests:
              cpu: 100m
              memory: 100Mi
          ports:
          - containerPort: 6379
        - name: telegraf
          image: telegraf:1.16.0
          env:
          - name: POD_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.name
          volumeMounts:
            - name: telegraf-config-volume
              mountPath: /etc/telegraf/telegraf.conf
              subPath: telegraf.conf
              readOnly: true
        volumes:
          - name: telegraf-config-volume
            configMap:
              name: telegraf-config
  ---
  apiVersion: v1
  kind: Service
  metadata:
    name: redis
  spec:
    type: NodePort
    selector:
      app: redis
    ports:
    - name: prom
      protocol: TCP
      port: 9273
      targetPort: 9273
      nodePort: 30008