GCP Slo Management

GCP SLO Management

Overview

This skill enables the discovery and management of SLOs in Google Cloud Monitoring. Since gcloud lacks native SLO creation commands, this skill leverages the Monitoring REST API and a bundled discovery script.

Core Pattern

1. Discover Services

Every SLO must be attached to a Service. Use the discovery script to find the correct Service ID.

• Command: python3 skills/gcp-slo-management/scripts/discovery.py <PROJECT_ID>
• Output: A table showing Display Name and Service ID.

2. Create an SLO

Use curl to POST a JSON definition to the service.

Example: 99% Availability (7-day rolling)

# Set variables
PROJECT_ID="your-project"
SERVICE_ID="wl:..." # From step 1
TOKEN=$(gcloud auth application-default print-access-token)

curl -X POST \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" \
  "https://monitoring.googleapis.com/v3/projects/$PROJECT_ID/services/$SERVICE_ID/serviceLevelObjectives" \
  -d '{
    "displayName": "99% Availability - Last 7 Days",
    "goal": 0.99,
    "rollingPeriod": "604800s",
    "serviceLevelIndicator": {
      "basicSli": {
        "availability": {}
      }
    }
  }'

Advanced Patterns

• Custom Services: For services not automatically discovered (e.g., frontend logs), you must use requestBased or windowBased SLIs with specific metric filters.
• Latency SLOs: Requires defining a latency threshold within basicSli.

Troubleshooting

• 403 Forbidden: Ensure you have run gcloud auth application-default login and that your account has roles/monitoring.editor.
• Service Not Found: Use the discovery script to verify the Service ID exists in the target project.