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DEPLOYMENT_AUTOMATION.md

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+# Deployment Automation Guide
+
+**Date**: 2025-01-27
+**Purpose**: Guide for automating deployments across projects
+**Status**: Complete
+
+---
+
+## Overview
+
+This guide provides strategies and tools for automating deployments across the integrated workspace.
+
+---
+
+## Deployment Strategies
+
+### 1. Blue-Green Deployment
+
+**Strategy**: Deploy new version alongside old, switch traffic
+
+**Benefits**:
+- Zero downtime
+- Easy rollback
+- Safe testing
+
+**Implementation**:
+```bash
+# Deploy green environment
+kubectl apply -f deployment-green.yaml
+
+# Test green environment
+curl https://green.example.com/health
+
+# Switch traffic
+kubectl patch service app -p '{"spec":{"selector":{"version":"green"}}}'
+
+# Keep blue for rollback
+```
+
+### 2. Canary Deployment
+
+**Strategy**: Gradual rollout to subset of users
+
+**Benefits**:
+- Risk mitigation
+- Gradual validation
+- Easy rollback
+
+**Implementation**:
+```yaml
+# Deploy canary (10% traffic)
+apiVersion: v1
+kind: Service
+metadata:
+  name: app
+spec:
+  selector:
+    app: app
+    version: canary
+  ports:
+    - port: 80
+```
+
+### 3. Rolling Deployment
+
+**Strategy**: Incremental replacement of instances
+
+**Benefits**:
+- No downtime
+- Resource efficient
+- Standard Kubernetes
+
+**Implementation**:
+```yaml
+spec:
+  replicas: 3
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+      maxSurge: 1
+      maxUnavailable: 0
+```
+
+---
+
+## GitOps Workflows
+
+### ArgoCD
+
+**Setup**:
+```bash
+# Install ArgoCD
+kubectl create namespace argocd
+kubectl apply -n argocd -f https://raw.githubusercontent.com/argoproj/argo-cd/stable/manifests/install.yaml
+```
+
+**Application**:
+```yaml
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: dbis-core
+spec:
+  project: default
+  source:
+    repoURL: https://github.com/org/repo
+    path: dbis_core/k8s
+    targetRevision: main
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: dbis-core
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+```
+
+### Flux
+
+**Setup**:
+```bash
+# Install Flux
+flux install
+
+# Create GitRepository
+flux create source git dbis-core \
+  --url=https://github.com/org/repo \
+  --branch=main
+
+# Create Kustomization
+flux create kustomization dbis-core \
+  --source=dbis-core \
+  --path="./dbis_core/k8s" \
+  --prune=true
+```
+
+---
+
+## CI/CD Integration
+
+### GitHub Actions
+
+```yaml
+name: Deploy
+
+on:
+  push:
+    branches: [main]
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Build
+        run: pnpm build
+
+      - name: Deploy to Kubernetes
+        run: |
+          kubectl set image deployment/app \
+            app=registry.example.com/app:${{ github.sha }}
+```
+
+### GitLab CI/CD
+
+```yaml
+deploy:
+  stage: deploy
+  script:
+    - kubectl set image deployment/app \
+        app=registry.gitlab.com/group/project:$CI_COMMIT_SHA
+  only:
+    - main
+```
+
+---
+
+## Infrastructure as Code
+
+### Terraform Deployment
+
+```bash
+# Plan
+terraform plan -out=tfplan
+
+# Apply
+terraform apply tfplan
+
+# Destroy (if needed)
+terraform destroy
+```
+
+### Ansible Deployment
+
+```yaml
+- name: Deploy application
+  hosts: app_servers
+  tasks:
+    - name: Pull latest image
+      docker_container:
+        name: app
+        image: registry.example.com/app:latest
+        state: started
+```
+
+---
+
+## Monitoring Deployments
+
+### Health Checks
+
+```yaml
+livenessProbe:
+  httpGet:
+    path: /health
+    port: 8080
+  initialDelaySeconds: 30
+  periodSeconds: 10
+
+readinessProbe:
+  httpGet:
+    path: /ready
+    port: 8080
+  initialDelaySeconds: 5
+  periodSeconds: 5
+```
+
+### Deployment Status
+
+```bash
+# Check deployment status
+kubectl rollout status deployment/app
+
+# View deployment history
+kubectl rollout history deployment/app
+
+# Rollback if needed
+kubectl rollout undo deployment/app
+```
+
+---
+
+## Best Practices
+
+### Pre-Deployment
+- Run all tests
+- Security scanning
+- Dependency audit
+- Documentation update
+
+### During Deployment
+- Monitor metrics
+- Check logs
+- Verify health
+- Test functionality
+
+### Post-Deployment
+- Monitor for issues
+- Verify metrics
+- Check alerts
+- Update status page
+
+---
+
+**Last Updated**: 2025-01-27
+