explorer-monorepo/docs/specs/deployment/cicd.md

CI/CD Pipeline Specification

Overview

Continuous Integration and Continuous Deployment pipeline.

Build Pipeline

Stages

1. Source: Code checkout
2. Build: Compile/build application
3. Test: Run tests
4. Package: Create container images
5. Deploy: Deploy to environment

Tools

CI/CD Platform: GitHub Actions, GitLab CI, or Jenkins

Build: Docker build Registry: Container registry (Docker Hub, ECR, GCR)

Test Strategy

Test Types

Unit Tests: Component-level tests Integration Tests: Service integration tests E2E Tests: End-to-end user flow tests

Test Execution

• Run on every commit
• Block deployment on test failures
• Parallel test execution

Deployment Strategies

Blue-Green Deployment

Method: Deploy new version alongside old, switch traffic Benefits: Zero downtime, instant rollback Use Case: Production deployments

Canary Deployment

Method: Gradually roll out new version to subset of users Benefits: Risk mitigation, gradual rollout Use Case: Major updates

Rollback Procedures

Automatic Rollback

Triggers:

• Health check failures
• Error rate spike
• Performance degradation

Manual Rollback

Process:

1. Identify issue
2. Rollback to previous version
3. Verify rollback success
4. Investigate issue

References

• Infrastructure: See infrastructure.md
• Deployment: See disaster-recovery.md