💡 [REQUEST] - Add Cloud Run example(s) to Cloud Monitoring backends

[lvaylet]

Summary

We have examples for App Engine, Pub/Sub and Load Balancer. Cloud Run probably deserves its own example(s) too, as it is becoming more and more popular.

Basic Example

Define your SLO in slo_cloudrun_service_availability.yaml (with MQL):

apiVersion: sre.google.com/v2
kind: ServiceLevelObjective
metadata:
  name: cloudrun-service-availability
  labels:
    service_name: cloudrun
    feature_name: service
    slo_name: availability
spec:
  description: Availability of Cloud Run service
  backend: cloud_monitoring_mql
  method: good_bad_ratio
  exporters:
  - cloud_monitoring
  service_level_indicator:
    filter_good: >
      fetch cloud_run_revision
      | metric 'run.googleapis.com/request_count'
      | filter resource.project_id == '${CLOUDRUN_PROJECT_ID}'
      | filter resource.service_name == '${CLOUDRUN_SERVICE_NAME}'
      | filter metric.response_code_class == '2xx'
    filter_valid: >
      fetch cloud_run_revision
      | metric 'run.googleapis.com/request_count'
      | filter resource.project_id == '${CLOUDRUN_PROJECT_ID}'
      | filter resource.service_name == '${CLOUDRUN_SERVICE_NAME}'
  goal: 0.85

Populate ${CLOUDRUN_PROJECT_ID} and ${CLOUDRUN_SERVICE_NAME} in .env:

export CLOUDRUN_PROJECT_ID=slo-generator-demo
export CLOUDRUN_SERVICE_NAME=cloud-run-randomly-fails

Run with:

$ source .env
$ slo-generator compute --slo-config=samples/cloud_monitoring_mql/slo_cloudrun_service_availability.yaml --config=samples/config.yaml
INFO - cloudrun-service-availability    | 1 hour   | SLI: 70.0    % | SLO: 85.0 % | Gap: -15.0 % | BR: 2.0 / 9.0 | Alert: 0 | Good: 42       | Bad: 18      
INFO - cloudrun-service-availability    | 12 hours | SLI: 76.1111 % | SLO: 85.0 % | Gap: -8.89 % | BR: 1.6 / 3.0 | Alert: 0 | Good: 548      | Bad: 172     
INFO - cloudrun-service-availability    | 7 days   | SLI: 75.4186 % | SLO: 85.0 % | Gap: -9.58 % | BR: 1.6 / 1.5 | Alert: 1 | Good: 7612     | Bad: 2481    
INFO - cloudrun-service-availability    | 28 days  | SLI: 75.0158 % | SLO: 85.0 % | Gap: -9.98 % | BR: 1.7 / 1.0 | Alert: 1 | Good: 23783    | Bad: 7921    
INFO - Run finished successfully in 7.7s.
INFO - Run summary | SLO Configs: 1 | Duration: 7.7s

Screenshots

![DESCRIPTION](LINK.png)

Drawbacks

None.

Unresolved questions

No response

Code of Conduct

• I agree to follow this project's Code of Conduct

[Lawouach]

Thanks Laurent. Very much appreciated this one :)