Health check and status for c8y mapper on te/

[Bravo555]

The c8y mapper is changed to use health status from the te/+/+/+/+/status/health and health check from te/+/+/+/+/cmd/health/check instead of tedge/health/+ and tedge/health-check topics.

Follow-up tasks:

Feature-related

• Handle remaining references to tedge/health in c8y #2349
• Document health status and health check messages #2348
• Use new te/.../cmd/health/check command

Cleanup

• Rewrite sending service startup registration message so there's less boilerplate
• Clean up ServiceTopicId, EntityTopicId, DeviceTopicId, Service, etc. abstractions
• fill serviceType default in mapper instead of the store
• Simplify passing of ancestors to functions which need to know ancestors of the given entity

(new issue(s) will be created for the cleanup tasks)

[didier-wenzek]

See also:

• tedge-log-plugin publishes service health status to main device when running on child device #2253
• Update tedge-watchdog to use the te MQTT topics. #2308

[Bravo555]

Because of the upcoming 0.13 release and all feature-related work has been done, this issue can be closed. A new issue(s) will be created for the remaining clean-up tasks.

[gligorisaev]

QA has thoroughly checked the feature and here are the results:

• Test for ticket exists in the test suite.
• tests/RobotFramework/tests/MQTT_health_check/MQTT_health_endpoints.robot
• tests/RobotFramework/tests/MQTT_health_check/health_tedge-mapper-collectd.robot
• tests/RobotFramework/tests/cumulocity/service_monitoring/service_monitoring.robot
• tests/RobotFramework/tests/cumulocity/software_management/software.robot
• tests/RobotFramework/tests/cumulocity/supported_operations/mapper-publishing-agent-supported-ops.robot
• tests/RobotFramework/tests/tedge/call_tedge_config_list.robot
• tests/RobotFramework/tests/tedge_to_te_converter/convert_tedge_topics_to_te_topics.robot
• tests/RobotFramework/tests/cumulocity/supported_operations/mapper-publishing-agent-supported-ops.robot
• tests/RobotFramework/tests/tedge/call_tedge_config_list.robot
• tests/RobotFramework/tests/tedge_to_te_converter/convert_tedge_topics_to_te_topics.robot
• tests/RobotFramework/tests/tedge_to_te_converter/convert_tedge_topics_to_te_topics.robot
• tests/RobotFramework/tests/tedge_to_te_converter/convert_tedge_topics_to_te_topics.robot
• QA has tested the bug and could not reproduce it anymore.