Keeper PVC is not taking input from VolumeClaimTemplates

[zheyu001]

We are trying to migrate our own keeper config to CHK, but it seems the PVC template is not taking into account. By quickly scan the code, it seems when creating CHK, it only cares about how many keeper volumes are declared instead of the content of the pvc? At least in our case, k8s complains about "both-paths" not found.

https://github.com/Altinity/clickhouse-operator/blob/0.23.3/pkg/model/chk/creator.go#L97-L118

[dxygit1]

I also encountered the same problem

Hope to specify PVC binding to the corresponding directory

[alex-zaitsev]

Will be fixed in 0.23.4. There is a workaround in the current version, but better not to use it, it will be deprecated.

[dxygit1]

Please let me know after you've fixed it. Thank you very much

[dxygit1]

Approximately when can this be fix

[dustinmoris]

I run into the same issue. What do we need to do in the meantime to get things working? I just need to get CHK working with my CHI and I don't want to wait a few days or longer until a fix gets released. Ideally I get this working today with whatever workarounds are needed for now.

[genestack-okunitsyn]

+1 to the issue

[dustinmoris]

I got CHK working with this manifest:

apiVersion: "clickhouse-keeper.altinity.com/v1"
kind: "ClickHouseKeeperInstallation"
metadata:
  name: clickhouse-keeper
  namespace: plausible
spec:
  configuration:
    clusters:
      - name: prod
        layout:
          replicasCount: 3
    settings:
      logger/level: "trace"
      logger/console: "true"
      listen_host: "0.0.0.0"
      keeper_server/storage_path: /var/lib/clickhouse-keeper
      keeper_server/tcp_port: "2181"
      keeper_server/four_letter_word_white_list: "*"
      keeper_server/coordination_settings/raft_logs_level: "information"
      keeper_server/raft_configuration/server/port: "9444"
      prometheus/endpoint: "/metrics"
      prometheus/port: "7000"
      prometheus/metrics: "true"
      prometheus/events: "true"
      prometheus/asynchronous_metrics: "true"
      prometheus/status_info: "false"
  templates:
    podTemplates:
      - name: default
        spec:
          containers:
            - name: clickhouse-keeper
              image: "clickhouse/clickhouse-keeper:24-alpine"
              imagePullPolicy: IfNotPresent
              resources:
                requests:
                  memory: "256M"
                  cpu: "0.5"
                limits:
                  memory: "2Gi"
                  cpu: "2"
    volumeClaimTemplates:
      - name: both-paths
        spec:
          storageClassName: standard-rwo
          accessModes:
            - ReadWriteOnce
          resources:
            requests:
              storage: 10Gi

[jun0tpyrc]

#1362 (comment) thanks ,this example is good

For original issue - probably we should have working & better example in https://github.com/Altinity/clickhouse-operator/tree/master/docs/chk-examples

[Slach]

0.24.0 works properly with volumeClaimTemplates
check https://github.com/Altinity/clickhouse-operator/tree/0.24.0/docs/chk-examples/

migration from old schema 1 statesfulset with multiple replicas per one kind: ClickHouseKeeperInstallation to separate statefulset with one replica for each replica from kind: ClickHouseKeeperInstallation still in development, so wait when 0.24.0 will complete