Enable providing list and dict variables in env variables config

[onurmus]

Use Case

In the current implementation, we can just provide environment variables which are text, numeric, or boolean values. However, I need to provide a transformation config which is a nested configuration. In this case, the charm tries to provide a JSON object as an environment variable.

env:
  - name: TWC_HOST
    value: 192.168.67.5:7233
  - name: TWC_QUEUE
    value: test
  - name: TWC_NAMESPACE
    value: default
  - name: WF_TRANSFORMATION
    value:
      - connection_id: my_connection_id
        unnesting:
          tables:
            issues: ["test1", "test2"]
            users: [test3]
        redaction:

Solution

Use json.dumps() to convert dict or list to string.

[gtato]

lg

[kelkawi-a]

LGTM, thanks for working on this!