[opentelemetry] log parsing for ceph cluster

[timojohlo]

Context

Administrators (such as Ceph) want also to provide a custom config for OpenTelemetry Collectors. We want to provide a way for users to upload or link the necessary config values that should be included.

Acceptance Criteria

• [x] Define requirements for log parsing
• [ ] Decide structure/architecture to allow custom configs to be included in PluginDefinition
• [ ] Test/verify that custom config values are valid

References

[Kuckkuck]

Ceph log parsing was added with pull request 348

Ceph parsing is active, when this condition is true:

            conditions:
              - resource.attributes["app.label.part-of"] == "ceph-cluster"