02-templates-05-sidecar.yaml

apiVersion: v1
kind: "ConfigMap"
metadata:
  name: "sidecar-mounted-configmap"
data:
  config-file-1.xml: |
    <tag1>
        <!-- Here goes some example config -->
        <listen_host_1>0.0.0.0</listen_host_1>
    </tag1>
  config-file-2.xml: |
    <tag2>
        <!-- Here goes some example config -->
        <listen_host_2>0.0.0.0</listen_host_2>
    </tag2>
---
apiVersion: "clickhouse.altinity.com/v1"
kind: "ClickHouseInstallation"
metadata:
  name: "sidecar"
spec:
  configuration:
    clusters:
      - name: "sc"
        layout:
          shardsCount: 1
          replicasCount: 1
  defaults:
    templates:
      # Templates are specified as default for all clusters
      podTemplate: pod-template
      dataVolumeClaimTemplate: data-volume-template
      logVolumeClaimTemplate: log-volume-template

  templates:
    podTemplates:
      - name: pod-template
        spec:
          containers:
            # Main container
            - name: clickhouse
              image: yandex/clickhouse-server:19.16
              volumeMounts:
                - name: sidecar-configmap-volume
                  mountPath: /configmap-volume
            # Sidecar container
            - name: custom-sidecar
              image: busybox
              command:
                - "/bin/sh"
                - "-c"
                - "--"
              args:
                - "while true; do sleep 30; done;"
              volumeMounts:
                - name: sidecar-configmap-volume
                  mountPath: /configmap-volume
          volumes:
            - name: sidecar-configmap-volume
              configMap:
                name: sidecar-mounted-configmap

    volumeClaimTemplates:
      - name: data-volume-template
        spec:
          accessModes:
            - ReadWriteOnce
          resources:
            requests:
              storage: 10Gi
      - name: log-volume-template
        spec:
          accessModes:
            - ReadWriteOnce
          resources:
            requests:
              storage: 10Gi