feat(engine): manage state of not configured retrieval (#408)

Artyom Kartasovrequested to merge
408-pending-retrieval into 359-configuration-management

Description

Manage state of not configured retrieval:

  • add a new status (pending) for the retrieval service,
    • it signals that the engine is managed by Marketplace and has not been configured yet
  • seek out the pending.retrieval file as a specific marker to detect the pending state
  • removes pending.retrieval file after running POST /admin/config
    • if the file is exist
    • if the config is valid
  • not to start the data refresh process until the managed DLE instance is configured

Related issue

#408 (closed)

Examples

Checklist

  • MR description has been reviewed
  • MR changes are functionally tested
  • MR does NOT have text changes OR there are text changes and they have been reviewed
  • MR does NOT have API/CLI changes OR there are API/CLI changes and they have been reviewed
  • MR does NOT have UI changes OR there are UI changes and they have been reviewed

Closes #408 (closed)

Edited by Artyom Kartasov

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