Do not set --capacity to tikv-server if resources.limits.storage is not given

[cofyc]

Feature Request

Is your feature request related to a problem? Please describe:

Currently, we cannot set raftstore.capacity in TiKV configuration.

tidb-operator/charts/tidb-cluster/values.yaml

Line 209 in 761daab

# Note that we can't set raftstore.capacity in config because it will be overridden by the command line parameter,

Describe the feature you'd like:

Do not pass TiKV default value if resources.limits.storage is absent. This will make it possible for users to set capacity in TiKV configuration.

Describe alternatives you've considered:

Teachability, Documentation, Adoption, Migration Strategy:

xref: #868 #942

[cofyc]

cc @weekface @tennix what do you think?

[weekface]

It's fine with me.

[github-actions]

This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 15 days

[github-actions]

This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 15 days