Environments

Introduction Multi-environment pipelines enable safe, progressive deployment of code changes through isolated environments. Each environment serves a specific purpose in validating changes before they reach production users. This guide visualizes the multi-environment deployment flow: Environment Hierarchy: Dev → Staging → Production Environment Isolation: Separate configs, databases, resources Progressive Promotion: Automated testing at each stage Approval Gates: Manual checkpoints for production Configuration Management: Environment-specific settings Part 1: Multi-Environment Architecture Complete Environment Flow %%{init: {'theme':'dark', 'themeVariables': {'primaryTextColor':'#e5e7eb','secondaryTextColor':'#e5e7eb','tertiaryTextColor':'#e5e7eb','textColor':'#e5e7eb','nodeTextColor':'#e5e7eb','edgeLabelText':'#e5e7eb','clusterTextColor':'#e5e7eb','actorTextColor':'#e5e7eb'}}}%% flowchart TD Dev([👨‍💻 Developer]) --> LocalDev[Local DevelopmentLaptop/Docker DesktopFast iteration] LocalDev --> Push[git push origin feature/new-api] Push --> CI[CI Pipeline TriggeredBuild + Test + Lint] CI --> CIPass{CIPassed?} CIPass -->|No| FixLocal[❌ Fix locallyCheck logsRun tests] FixLocal -.-> LocalDev CIPass -->|Yes| FeatureBranch{Branchtype?} FeatureBranch -->|feature/*| DevEnv[🔧 Dev EnvironmentNamespace: devAuto-deploy on push] FeatureBranch -->|main| StagingEnv[🎯 Staging EnvironmentNamespace: stagingAuto-deploy on merge] subgraph DevEnvironment[Development Environment] DevEnv --> DevConfig[Configuration:- Debug mode ON- Verbose logging- Mock external APIs- Dev database- Minimal replicas: 1] DevConfig --> DevTest[Basic Tests:- Smoke tests- Health checks- Manual QA] DevTest --> DevDone[✅ Dev validatedReady for staging] end DevDone --> MergePR[Merge Pull Requestto main branch] MergePR --> StagingEnv subgraph StagingEnvironment[Staging Environment] StagingEnv --> StagingConfig[Configuration:- Production-like setup- Staging database- Real external APIs test- Replicas: 2-3- Resource limits] StagingConfig --> StagingTest[Comprehensive Tests:- Integration tests- E2E tests- Performance tests- Security scans] StagingTest --> StagingResult{All testspassed?} StagingResult -->|No| StagingFail[❌ Staging failedRollback stagingFix issues] StagingFail -.-> FixLocal StagingResult -->|Yes| StagingMonitor[Monitor staging:- Error rates- Performance metrics- User acceptance testing] StagingMonitor --> StagingReady[✅ Staging validatedReady for production] end StagingReady --> ApprovalGate{ManualApprovalRequired} ApprovalGate --> ReviewTeam[Team Lead Review:- Code changes- Test results- Risk assessment- Deployment timing] ReviewTeam --> Approved{Approved?} Approved -->|No| Rejected[❌ RejectedMore testing neededor wrong timing] Approved -->|Yes| ProdEnv[🚀 Production EnvironmentNamespace: productionManual trigger only] subgraph ProductionEnvironment[Production Environment] ProdEnv --> ProdConfig[Configuration:- Production settings- Production database- High availability- Replicas: 5-10- Strict resource limits- Auto-scaling enabled] ProdConfig --> ProdDeploy[Deployment Strategy:- Blue-green or- Canary or- Rolling update] ProdDeploy --> ProdHealth{Productionhealthy?} ProdHealth -->|No| AutoRollback[🚨 Auto-rollbackRevert to previousAlert on-call team] ProdHealth -->|Yes| ProdMonitor[Monitor Production:- Real user metrics- Error rates- Business KPIs- SLO compliance] ProdMonitor --> ProdStable{Stable for15 minutes?} ProdStable -->|No| AutoRollback ProdStable -->|Yes| Success[✅ Deployment Complete!New version liveMonitor continues] end style DevEnv fill:#064e3b,stroke:#10b981 style StagingEnv fill:#78350f,stroke:#f59e0b style ProdEnv fill:#1e3a8a,stroke:#3b82f6 style Success fill:#064e3b,stroke:#10b981 style StagingFail fill:#7f1d1d,stroke:#ef4444 style AutoRollback fill:#7f1d1d,stroke:#ef4444 style Rejected fill:#7f1d1d,stroke:#ef4444 Part 2: Environment Comparison Environment Characteristics %%{init: {'theme':'dark', 'themeVariables': {'primaryTextColor':'#e5e7eb','secondaryTextColor':'#e5e7eb','tertiaryTextColor':'#e5e7eb','textColor':'#e5e7eb','nodeTextColor':'#e5e7eb','edgeLabelText':'#e5e7eb','clusterTextColor':'#e5e7eb','actorTextColor':'#e5e7eb'}}}%% graph TB subgraph Local[🏠 Local Development] LocalProps[Properties:✓ Fast iteration✓ Developer's laptop✓ Docker Compose✓ Mock services✓ Hot reload enabled] LocalData[Data:- SQLite or local DB- Seed data- No real user data- Quick reset] LocalAccess[Access:- localhost only- No authentication- Debug tools enabled] end subgraph Dev[🔧 Development Environment] DevProps[Properties:✓ Shared team env✓ Kubernetes cluster✓ Continuous deployment✓ Latest features✓ Can be unstable] DevData[Data:- Dev database- Synthetic test data- Reset weekly- No PII] DevAccess[Access:- VPN required- Basic auth- All developers- Debug mode ON] end subgraph Staging[🎯 Staging Environment] StagingProps[Properties:✓ Production mirror✓ Same infrastructure✓ Pre-production testing✓ Stable builds only✓ Performance testing] StagingData[Data:- Staging database- Anonymized prod data- Or realistic test data- Refreshed monthly] StagingAccess[Access:- VPN required- OAuth/SSO- Developers + QA- Debug mode OFF] end subgraph Prod[🚀 Production Environment] ProdProps[Properties:✓ Live customer traffic✓ High availability✓ Auto-scaling✓ Disaster recovery✓ Maximum stability] ProdData[Data:- Production database- Real user data- Encrypted at rest- Regular backups] ProdAccess[Access:- Public internet- Full authentication- Limited admin access- Audit logging enabled] end Local --> |git push feature/*| Dev Dev --> |Merge to main| Staging Staging --> |Manual approval| Prod style Local fill:#064e3b,stroke:#10b981 style Dev fill:#064e3b,stroke:#10b981 style Staging fill:#78350f,stroke:#f59e0b style Prod fill:#1e3a8a,stroke:#3b82f6 Environment Configuration Matrix Aspect Local Dev Staging Production Purpose Development Feature testing Pre-production validation Live users Deployment Manual Auto on push Auto on merge Manual approval Replicas 1 1-2 2-3 5-10+ Database Local SQLite Shared dev DB Staging DB (prod-like) Production DB Resources Minimal Low Medium (prod-like) High Monitoring None Basic Full Full + Alerts Debug Mode Yes Yes No No Logging Level DEBUG DEBUG INFO WARN/ERROR External APIs Mocked Test endpoints Test endpoints Production endpoints Data Seed data Synthetic Anonymized Real user data Access localhost VPN + Basic auth VPN + SSO Public + Full auth Uptime SLA N/A None None 99.9%+ Part 3: Progressive Promotion Pipeline Promotion Flow with Quality Gates %%{init: {'theme':'dark', 'themeVariables': {'primaryTextColor':'#e5e7eb','secondaryTextColor':'#e5e7eb','tertiaryTextColor':'#e5e7eb','textColor':'#e5e7eb','nodeTextColor':'#e5e7eb','edgeLabelText':'#e5e7eb','clusterTextColor':'#e5e7eb','actorTextColor':'#e5e7eb'}}}%% flowchart LR subgraph LocalStage[Local Stage] L1[Write Code] L2[Run Unit Tests] L3[Manual Testing] L1 --> L2 --> L3 end subgraph DevStage[Dev Stage] D1[Auto Deploy] D2[Smoke Tests] D3{TestsPass?} D4[Dev Validated ✓] D1 --> D2 --> D3 D3 -->|Yes| D4 D3 -->|No| D5[❌ Fix] D5 -.-> L1 end subgraph StagingStage[Staging Stage] S1[Auto Deploy] S2[Integration Tests] S3[E2E Tests] S4[Performance Tests] S5{All Pass?} S6[Staging Validated ✓] S1 --> S2 --> S3 --> S4 --> S5 S5 -->|Yes| S6 S5 -->|No| S7[❌ Fix] S7 -.-> L1 end subgraph ApprovalStage[Approval Gate] A1[Create Release] A2[Code Review] A3[Change Advisory] A4{Approved?} A1 --> A2 --> A3 --> A4 A4 -->|No| A5[❌ Rejected] A5 -.-> L1 end subgraph ProdStage[Production Stage] P1[Manual Deploy] P2[Canary 10%] P3{Healthy?} P4[Increase to 50%] P5{Healthy?} P6[Complete 100%] P7[Monitor] P8[Success ✓] P1 --> P2 --> P3 P3 -->|Yes| P4 --> P5 P5 -->|Yes| P6 --> P7 --> P8 P3 -->|No| P9[🚨 Rollback] P5 -->|No| P9 end L3 --> |git push| D1 D4 --> |Merge PR| S1 S6 --> A1 A4 -->|Yes| P1 style L3 fill:#064e3b,stroke:#10b981 style D4 fill:#064e3b,stroke:#10b981 style S6 fill:#064e3b,stroke:#10b981 style P8 fill:#064e3b,stroke:#10b981 style D5 fill:#7f1d1d,stroke:#ef4444 style S7 fill:#7f1d1d,stroke:#ef4444 style P9 fill:#7f1d1d,stroke:#ef4444 Part 4: Environment-Specific Configuration Configuration Management Strategy %%{init: {'theme':'dark', 'themeVariables': {'primaryTextColor':'#e5e7eb','secondaryTextColor':'#e5e7eb','tertiaryTextColor':'#e5e7eb','textColor':'#e5e7eb','nodeTextColor':'#e5e7eb','edgeLabelText':'#e5e7eb','clusterTextColor':'#e5e7eb','actorTextColor':'#e5e7eb'}}}%% flowchart TD Start([Application needs config]) --> Method{ConfigMethod?} Method --> EnvVars[Environment Variables] Method --> ConfigMaps[Kubernetes ConfigMaps] Method --> Secrets[Kubernetes Secrets] EnvVars --> EnvExample[Examples:- NODE_ENV=production- LOG_LEVEL=info- FEATURE_FLAGS=true] ConfigMaps --> CMExample[Examples:- app-config.yaml- nginx.conf- application.properties] Secrets --> SecretExample[Examples:- DATABASE_PASSWORD- API_KEYS- TLS certificates] EnvExample --> Override{Override perenvironment?} CMExample --> Override SecretExample --> Override Override --> DevOverride[Dev Environment:DEBUG=trueDB_HOST=dev-dbREPLICAS=1CACHE_TTL=60s] Override --> StagingOverride[Staging Environment:DEBUG=falseDB_HOST=staging-dbREPLICAS=3CACHE_TTL=300s] Override --> ProdOverride[Production Environment:DEBUG=falseDB_HOST=prod-dbREPLICAS=10CACHE_TTL=600s] DevOverride --> Inject[Inject at deployment:kubectl apply -f k8s/dev/- deployment.yaml- configmap.yaml- secrets.yaml] StagingOverride --> Inject ProdOverride --> Inject style EnvVars fill:#1e3a8a,stroke:#3b82f6 style ConfigMaps fill:#1e3a8a,stroke:#3b82f6 style Secrets fill:#7f1d1d,stroke:#ef4444 Kubernetes Configuration Example # k8s/base/deployment.yaml (Common base) apiVersion: apps/v1 kind: Deployment metadata: name: myapp spec: selector: matchLabels: app: myapp template: metadata: labels: app: myapp spec: containers: - name: myapp image: myapp:latest # Overridden per environment ports: - containerPort: 8080 envFrom: - configMapRef: name: myapp-config - secretRef: name: myapp-secrets resources: # Overridden per environment requests: memory: "128Mi" cpu: "100m" limits: memory: "256Mi" cpu: "200m" --- # k8s/dev/configmap.yaml apiVersion: v1 kind: ConfigMap metadata: name: myapp-config namespace: dev data: NODE_ENV: "development" LOG_LEVEL: "debug" DATABASE_HOST: "postgres.dev.svc.cluster.local" REDIS_HOST: "redis.dev.svc.cluster.local" FEATURE_NEW_UI: "true" FEATURE_BETA_API: "true" --- # k8s/staging/configmap.yaml apiVersion: v1 kind: ConfigMap metadata: name: myapp-config namespace: staging data: NODE_ENV: "staging" LOG_LEVEL: "info" DATABASE_HOST: "postgres.staging.svc.cluster.local" REDIS_HOST: "redis.staging.svc.cluster.local" FEATURE_NEW_UI: "true" FEATURE_BETA_API: "false" --- # k8s/production/configmap.yaml apiVersion: v1 kind: ConfigMap metadata: name: myapp-config namespace: production data: NODE_ENV: "production" LOG_LEVEL: "warn" DATABASE_HOST: "postgres.production.svc.cluster.local" REDIS_HOST: "redis.production.svc.cluster.local" FEATURE_NEW_UI: "false" # Gradual rollout FEATURE_BETA_API: "false" --- # k8s/dev/kustomization.yaml apiVersion: kustomize.config.k8s.io/v1beta1 kind: Kustomization namespace: dev resources: - ../base/deployment.yaml - configmap.yaml - secrets.yaml images: - name: myapp newTag: dev-abc123 replicas: - name: myapp count: 1 patches: - patch: |- - op: replace path: /spec/template/spec/containers/0/resources/requests/memory value: 128Mi - op: replace path: /spec/template/spec/containers/0/resources/limits/memory value: 256Mi target: kind: Deployment name: myapp --- # k8s/production/kustomization.yaml apiVersion: kustomize.config.k8s.io/v1beta1 kind: Kustomization namespace: production resources: - ../base/deployment.yaml - configmap.yaml - secrets.yaml images: - name: myapp newTag: v1.2.3 replicas: - name: myapp count: 10 patches: - patch: |- - op: replace path: /spec/template/spec/containers/0/resources/requests/memory value: 512Mi - op: replace path: /spec/template/spec/containers/0/resources/limits/memory value: 1Gi - op: replace path: /spec/template/spec/containers/0/resources/requests/cpu value: 500m - op: replace path: /spec/template/spec/containers/0/resources/limits/cpu value: 1000m target: kind: Deployment name: myapp Part 5: Database Migration Strategy Multi-Environment Database Flow %%{init: {'theme':'dark', 'themeVariables': {'primaryTextColor':'#e5e7eb','secondaryTextColor':'#e5e7eb','tertiaryTextColor':'#e5e7eb','textColor':'#e5e7eb','nodeTextColor':'#e5e7eb','edgeLabelText':'#e5e7eb','clusterTextColor':'#e5e7eb','actorTextColor':'#e5e7eb'}}}%% sequenceDiagram participant Dev as Developer participant DevDB as Dev Database participant StagingDB as Staging Database participant ProdDB as Production Database participant Migration as Migration Tool Note over Dev: Write migration:001_add_users_table.sql Dev->>DevDB: Run migration locallyCREATE TABLE users... DevDB-->>Dev: Migration applied ✓ Dev->>Dev: Test applicationwith new schema Dev->>Dev: git push feature/add-users Note over DevDB: CI/CD Pipeline triggered Dev->>DevDB: Auto-run migrationsin dev environment DevDB-->>Dev: Dev DB updated ✓ Note over Dev: Create Pull RequestMerge to main Dev->>StagingDB: Trigger staging deployment Note over Migration,StagingDB: Pre-deployment hook Migration->>StagingDB: Backup databasepg_dump > backup.sql Migration->>StagingDB: Run migrations001_add_users_table.sql StagingDB-->>Migration: Migration applied ✓ Note over StagingDB: Deploy applicationTest with new schema alt Migration Failed Migration->>StagingDB: Rollback migrationRestore from backup StagingDB-->>Migration: Rolled back end Note over Dev: Manual approvalfor production Dev->>ProdDB: Trigger production deployment Note over Migration,ProdDB: Pre-deployment steps Migration->>ProdDB: Full database backupSnapshot created Migration->>ProdDB: Check migration statusSELECT version FROM schema_migrations ProdDB-->>Migration: Current version: 000 Migration->>ProdDB: Run migrationsin transaction Note over Migration,ProdDB: BEGIN;CREATE TABLE users;INSERT INTO schema_migrationsVALUES ('001');COMMIT; ProdDB-->>Migration: Migration successful ✓ Note over ProdDB: Deploy new applicationversion alt Production Issues Migration->>ProdDB: Rollback migrationRun down migration:DROP TABLE users; Note over ProdDB: Deploy previousapplication version end Migration->>ProdDB: Verify data integrityCheck constraints ProdDB-->>Migration: All checks passed ✓ Note over Dev,ProdDB: Production updated successfully Part 6: Multi-Environment CI/CD Pipeline Complete Pipeline Configuration # .github/workflows/multi-env-deploy.yml name: Multi-Environment Deployment on: push: branches: - main - develop pull_request: branches: - main env: REGISTRY: ghcr.io IMAGE_NAME: ${{ github.repository }} jobs: # CI - Same for all environments build-and-test: runs-on: ubuntu-latest steps: - uses: actions/checkout@v3 - name: Run linting run: npm run lint - name: Run unit tests run: npm test - name: Build Docker image run: docker build -t $IMAGE_NAME:${{ github.sha }} . - name: Run integration tests run: docker-compose -f docker-compose.test.yml up --abort-on-container-exit - name: Push image run: | echo ${{ secrets.GITHUB_TOKEN }} | docker login ghcr.io -u ${{ github.actor }} --password-stdin docker push $IMAGE_NAME:${{ github.sha }} # Deploy to Dev - Auto on feature branches deploy-dev: needs: build-and-test if: github.ref != 'refs/heads/main' runs-on: ubuntu-latest environment: name: development url: https://dev.example.com steps: - uses: actions/checkout@v3 - name: Deploy to Dev run: | kubectl config set-cluster dev --server="${{ secrets.DEV_K8S_SERVER }}" kubectl config set-credentials admin --token="${{ secrets.DEV_K8S_TOKEN }}" kubectl set image deployment/myapp myapp=$IMAGE_NAME:${{ github.sha }} -n dev kubectl rollout status deployment/myapp -n dev - name: Run smoke tests run: | curl https://dev.example.com/health npm run test:smoke -- --env=dev # Deploy to Staging - Auto on main branch deploy-staging: needs: build-and-test if: github.ref == 'refs/heads/main' runs-on: ubuntu-latest environment: name: staging url: https://staging.example.com steps: - uses: actions/checkout@v3 - name: Run database migrations run: | kubectl exec -n staging deployment/postgres -- \ psql -U postgres -d app -f /migrations/migrate.sql - name: Deploy to Staging run: | kubectl config set-cluster staging --server="${{ secrets.STAGING_K8S_SERVER }}" kubectl config set-credentials admin --token="${{ secrets.STAGING_K8S_TOKEN }}" kubectl apply -k k8s/staging/ kubectl rollout status deployment/myapp -n staging --timeout=5m - name: Run E2E tests run: npm run test:e2e -- --env=staging - name: Run performance tests run: | k6 run --vus 10 --duration 30s tests/performance.js - name: Check staging health run: | curl https://staging.example.com/health | jq '.status' | grep -q "healthy" # Deploy to Production - Manual approval required deploy-production: needs: deploy-staging runs-on: ubuntu-latest environment: name: production url: https://example.com steps: - uses: actions/checkout@v3 - name: Backup production database run: | kubectl exec -n production deployment/postgres -- \ pg_dump -U postgres app > backup-$(date +%Y%m%d-%H%M%S).sql - name: Run database migrations run: | kubectl exec -n production deployment/postgres -- \ psql -U postgres -d app -f /migrations/migrate.sql - name: Deploy to Production (Blue-Green) run: | kubectl config set-cluster prod --server="${{ secrets.PROD_K8S_SERVER }}" kubectl config set-credentials admin --token="${{ secrets.PROD_K8S_TOKEN }}" # Deploy green version kubectl apply -k k8s/production/ kubectl rollout status deployment/myapp-green -n production --timeout=10m # Switch traffic to green kubectl patch service myapp -n production -p '{"spec":{"selector":{"version":"green"}}}' - name: Monitor production metrics run: | sleep 300 # Wait 5 minutes ERROR_RATE=$(curl -s prometheus.example.com/api/v1/query?query=rate5m) if [ "$ERROR_RATE" -gt "0.01" ]; then echo "Error rate too high, rolling back" kubectl patch service myapp -n production -p '{"spec":{"selector":{"version":"blue"}}}' exit 1 fi - name: Notify team if: success() uses: slackapi/slack-github-action@v1 with: payload: | { "text": "✅ Production deployment successful!", "version": "${{ github.sha }}", "deployed_by": "${{ github.actor }}" } Part 7: Best Practices Environment Management Checklist ✅ DO: ...