[Enhancement] Support multiple data volumes on helm chart

[yandongxiao]

Description

Support multiple data volumes on helm chart

This show how to configure multiple volumes for BE/CN.

spec:
  starrocksCnSpec:
    storageSpec:
      logStorageSize: 1Gi
      name: cn-storage
      storageSize: 100Gi
      storageCount: 3    # we want to mount 3 volumes and each volume size is 100Gi
    config: |
      sys_log_level = INFO
      # ports for admin, web, heartbeat service
      thrift_port = 9060
      webserver_port = 8040
      heartbeat_service_port = 9050
      brpc_port = 8060
      storage_root_path = /opt/starrocks/cn/storage0;/opt/starrocks/cn/storage1;/opt/starrocks/cn/storage2   # mount them
      
spec:
  starrocksBeSpec:
    storageSpec:
      logStorageSize: 1Gi
      name: be-storage
      storageSize: 100Gi
      storageCount: 2   # we want to mount 2 volumes and each volume size is 100Gi
    config: |
      be_port = 9060
      webserver_port = 8040
      heartbeat_service_port = 9050
      brpc_port = 8060
      sys_log_level = INFO
      default_rowset_type = beta
      storage_root_path = /opt/starrocks/be/storage0;/opt/starrocks/be/storage1    # mount them.

The result shows that It has worked.

root@kube-starrocks-be-0:/opt/starrocks/be# ls
bin  conf  lib  log  spill  storage  storage0  storage1  www
root@kube-starrocks-be-0:/opt/starrocks/be# ls storage
root@kube-starrocks-be-0:/opt/starrocks/be# ls storage0/
cluster_id  data  error_log  meta  persistent  tmp
root@kube-starrocks-be-0:/opt/starrocks/be# ls storage1/
cluster_id  data  meta  persistent  tmp

root@kube-starrocks-cn-0:/opt/starrocks/cn# ls
bin  conf  lib  log  spill  storage  storage0  storage1  storage2  www
root@kube-starrocks-cn-0:/opt/starrocks/cn# ls storage
root@kube-starrocks-cn-0:/opt/starrocks/cn# ls storage0
cluster_id  data  error_log  meta  persistent  tmp
root@kube-starrocks-cn-0:/opt/starrocks/cn# ls storage1
cluster_id  data  meta  persistent  tmp
root@kube-starrocks-cn-0:/opt/starrocks/cn# ls storage2
cluster_id  data  meta  persistent  tmp

Checklist

For helm chart, please complete the following checklist:

• make sure you have updated the values.yaml
  file of starrocks chart.
• In scripts directory, run bash create-parent-chart-values.sh to update the values.yaml file of the parent
  chart( kube-starrocks chart).

[kevincai]

need to revise the comments together with the storageMountPath

• storageCount == 1, what the storageMountPath means and what the storage_root_path should be configured
• storageCount > 1, what the storageMountPath means and what the storage_root_path should be configured.