Support Running New images

[chaptersix]

What was changed

• add support for using the temporal-elasticsearch-tool for setting up es schemas if available in the image.
• override the entrypoint of of the server to support config template parsing using dockerize or sprig (embedded in the server binary)
• use cassandra-tool if available instead of cqlsh

Why?

New images are slimmed down and come with fewer external dependencies

We do not guarantee these helm charts will support all image variants in the future.

[bergundy]

I skimmed most of this, maybe @robholland would be more opinionated here. Overall LGTM, my comments are mostly nitpicky.

[chaptersix]

Test	Server Image	Config Mode
1	temporalio/server:1.29.0	dockerize
2	temporalio/server:1.29.0	both
3	ghcr.io/chaptersix/temporal/server:main	both
4	ghcr.io/chaptersix/temporal/server:main	sprig

All tests validated:

• ✅ Cluster health (SERVING status)
• ✅ Namespace operations (create/list)
• ✅ ConfigMap creation based on configMapsToMount setting
• ✅ Auto-detection logic when both configs are mounted
• ✅ Template syntax processing (dockerize vs sprig)

Configuration Options

Annotated Values File

server:
  configMapsToMount: "both"  # changes during each test
  
  image:
    # image and tag changed during each test
    repository: temporalio/server
    tag: 1.29.0
  
  config:
    persistence:
      default:
        driver: "cassandra"
      visibility:
        driver: "elasticsearch"

admintools:
  image:
    # image and tag changed during each test
    repository: temporalio/admin-tools
    tag: "1.29" 

# Test configuration: Single-node setup without monitoring
cassandra:
  enabled: true
  config:
    cluster_size: 1  # Single-node for testing

elasticsearch:
  enabled: true
  replicas: 1
  minimumMasterNodes: 1

prometheus:
  enabled: false  # Disabled for resource optimization

grafana:
  enabled: false  # Disabled for resource optimization

[robholland]

Lightly reviewed, few small requests.