99-clickhouseupgrade-draft.yaml

apiVersion: "clickhouse.altinity.com/v1"
kind: "ClickHouseUpgrade"
metadata:
  name: "clickhouse-installation-test"
spec:
  defaults:
    deployment:
      zone:
        matchLabels:
          clickhouse.altinity.com/zone: zone1
      podTemplate: clickhouse-v18.16.1
      dataVolumeClaimTemplate: default
      logVolumeClaimTemplate: default
#     scenario: Default

  configuration:
    clusters:
    - name: customized
#     deployment:
#       scenario: Default
#       zone:
#         matchLabels:
#           clickhouse.altinity.com/zone: zone1
#       podTemplate: clickhouse-v18.16.1
#
#       values inherited from global .spec.deployment section
#
      layout:
        shards:
        - index: 5
#         deployment:
#           scenario: Default
#           zone:
#             matchLabels:
#               clickhouse.altinity.com/zone: zone1
#           podTemplate: clickhouse-v18.16.1
#
#         values inherited from .spec.configuration.clusters[3].deployment section
#
          replicas:
          - index: 2
            tcpPort: 9000
            deployment:
              scenario: Default
#             zone:
#               matchLabels:
#                 clickhouse.altinity.com/zone: zone1
#             podTemplate: clickhouse-v18.16.1
#  
#           values inherited from .spec.configuration.clusters[3].shards[2].deployment section
#
        - index: 6
            deployment:
              scenario: NodeMonopoly # 1 pod (CH server instance) per node (zone can be a set of n nodes) -> podAntiAffinity
              zone:
                matchLabels:
                  clickhouse.altinity.com/zone: zone4
                  clickhouse.altinity.com/kind: ssd
              podTemplate: clickhouse-v18.16.1

            replicas:
              - index: 2

  templates:
    volumeClaimTemplates:
    - name: default
      persistentVolumeClaim:
        metadata:
          name: clickhouse-data-test
          # namespace: testnamespace
        spec:
          # 1. if  storageClassName is not specified, default StorageClass
          # (must be specified by cluster administrator) would be used for provisioning
          # 2. if storageClassName is set to an empty string (‘’), no storage class will be used
          # dynamic provisioning is disabled for this PVC. Existing, “Available”, PVs
          # (that do not have a specified storageClassName) will be considered for binding to the PVC
          #storageClassName: gold
          accessModes:
          - ReadWriteOnce
          resources:
            requests:
              storage: 1Gi
    podTemplates:
    # multiple pod templates makes possible to update version smoothly
    # pod template for ClickHouse v18.16.1
    - name: clickhouse-v18.16.1
    # volumes: are missing
      containers:
      - name: clickhouse
        image: yandex/clickhouse-server:18.16.1
        volumeMounts:
        - name: clickhouse-data-test
          mountPath: /var/lib/clickhouse
        resources:
          requests:
            memory: "64Mi"
            cpu: "100m"
          limits:
            memory: "64Mi"
            cpu: "100m"
    # pod template for ClickHouse v18.16.2
    - name: clickhouse-v18.16.2
    # volumes: are missing
      containers:
      - name: clickhouse
        image: yandex/clickhouse-server:18.16.2
        volumeMounts:
        - name: clickhouse-data-test
          mountPath: /var/lib/clickhouse
        resources:
          requests:
            memory: "64Mi"
            cpu: "100m"
          limits:
            memory: "64Mi"
            cpu: "100m"