🚀 Add support for Notifications

[arybolovlev]

Description

This PR adds support for Notifications.

More information about Run Tasks can be found in the TFC documentation.

Check List

• Add API structures
  • Add Kubernetes API-level validations for new API structures
  • Add documentation[godoc] for new API structures
  • Add custom validations for new API structures
  • Add custom validations tests for new API structures
• Update Workspace controller to handle Notifications
  • Add support for Notifications
    • Create
    • Update
    • Delete
  • Add tests for Notifications
• Update documentation
  • Update API reference
  • Update features
  • Add an example
• Update Helm chart
  • Update CRD

Usage Example

apiVersion: app.terraform.io/v1alpha2
kind: Workspace
metadata:
  name: this
spec:
  organization: kubernetes-operator
  token:
    secretKeyRef:
      name: tfc-operator
      key: token
  name: kubernetes-operator-demo
  notifications:
    - name: this
      type: slack
      enabled: true
      url: https://hooks.slack.com/
      # token: t0k3n
      # emailUsers:
      #   - user@example.com
      # emailAddresses:
      #   - user@example.com
      triggers:
        - assessment:check_failure
        - assessment:drifted
        - assessment:failed
        - run:applying
        - run:completed
        - run:created
        - run:errored
        - run:needs_attention
        - run:planning

Release Note

Release note for CHANGELOG:

`Workspace`: add support for Notifications.

References

N/A.

Community Note

• Please do not leave "+1" or other comments that do not add relevant new information or questions, they generate extra noise for issue followers and do not help prioritize the request.
• Please vote on this issue by adding a 👍 reaction to the original issue to help the community and maintainers prioritize this request.
• If you are interested in working on this issue or have submitted a pull request, please leave a comment.

[jrhouston]

Cool, tried it out – it works! Left one comment