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Multi-Container Pods

Kubernetes multi-container pod example using a sidecar pattern with a Filebeat log collector alongside an event simulator application.

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By Jan Toth
1 min read

This manifest demonstrates the sidecar container pattern. The main app container generates events and writes logs to a shared volume. The sidecar container runs Filebeat to collect and forward those logs. Both containers mount the same log-volume to share data.

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apiVersion: v1
kind: Pod
metadata:
  labels:
    name: app
  name: app
  namespace: elastic-stack
spec:
  containers:
  - image: kodekloud/event-simulator
    name: app
    volumeMounts:
    - mountPath: /log
      name: log-volume
    - mountPath: /var/run/secrets/kubernetes.io/serviceaccount
      name: default-token-7lfvx
      readOnly: true
  - image: kodekloud/filebeat-configured
    name: sidecar
    volumeMounts:
    - mountPath: /var/log/event-simulator/
      name: log-volume
    - mountPath: /var/run/secrets/kubernetes.io/serviceaccount
      name: default-token-7lfvx
      readOnly: true
  serviceAccount: default
  serviceAccountName: default
  volumes:
  - hostPath:
      path: /var/log/webapp
      type: DirectoryOrCreate
    name: log-volume
  - name: default-token-7lfvx
    secret:
      defaultMode: 420
      secretName: default-token-7lfvx
Kubernetes
pods
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