Initial commit

commands/k8s-deploy.md

@@ -0,0 +1,170 @@
+---
+description: Create Kubernetes deployments and services
+---
+
+# Kubernetes Deployment Creator
+
+Generate production-ready Kubernetes manifests with best practices.
+
+## K8s Resources Generated
+
+1. **Deployment**: Application pods with replicas
+2. **Service**: Load balancing and discovery
+3. **ConfigMap**: Configuration management
+4. **Secret**: Sensitive data storage
+5. **Ingress**: External access routing
+6. **HPA**: Horizontal pod autoscaling
+
+## Example Deployment (Full Stack App)
+
+```yaml
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: web-app
+  namespace: production
+  labels:
+    app: web-app
+    version: v1
+spec:
+  replicas: 3
+  selector:
+    matchLabels:
+      app: web-app
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+      maxSurge: 1
+      maxUnavailable: 0
+  template:
+    metadata:
+      labels:
+        app: web-app
+        version: v1
+    spec:
+      containers:
+      - name: web
+        image: myapp:1.0.0
+        ports:
+        - containerPort: 8080
+          name: http
+        env:
+        - name: DATABASE_URL
+          valueFrom:
+            secretKeyRef:
+              name: db-credentials
+              key: url
+        - name: REDIS_HOST
+          valueFrom:
+            configMapKeyRef:
+              name: app-config
+              key: redis-host
+        resources:
+          requests:
+            cpu: 100m
+            memory: 128Mi
+          limits:
+            cpu: 500m
+            memory: 512Mi
+        livenessProbe:
+          httpGet:
+            path: /health
+            port: 8080
+          initialDelaySeconds: 30
+          periodSeconds: 10
+        readinessProbe:
+          httpGet:
+            path: /ready
+            port: 8080
+          initialDelaySeconds: 5
+          periodSeconds: 5
+        volumeMounts:
+        - name: config
+          mountPath: /app/config
+          readOnly: true
+      volumes:
+      - name: config
+        configMap:
+          name: app-config
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: web-app-service
+  namespace: production
+spec:
+  type: ClusterIP
+  selector:
+    app: web-app
+  ports:
+  - port: 80
+    targetPort: 8080
+    name: http
+---
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: web-app-ingress
+  namespace: production
+  annotations:
+    cert-manager.io/cluster-issuer: letsencrypt-prod
+    nginx.ingress.kubernetes.io/rate-limit: "100"
+spec:
+  ingressClassName: nginx
+  tls:
+  - hosts:
+    - app.example.com
+    secretName: app-tls
+  rules:
+  - host: app.example.com
+    http:
+      paths:
+      - path: /
+        pathType: Prefix
+        backend:
+          service:
+            name: web-app-service
+            port:
+              number: 80
+---
+apiVersion: autoscaling/v2
+kind: HorizontalPodAutoscaler
+metadata:
+  name: web-app-hpa
+  namespace: production
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: web-app
+  minReplicas: 3
+  maxReplicas: 10
+  metrics:
+  - type: Resource
+    resource:
+      name: cpu
+      target:
+        type: Utilization
+        averageUtilization: 70
+  - type: Resource
+    resource:
+      name: memory
+      target:
+        type: Utilization
+        averageUtilization: 80
+```
+
+## Best Practices Included
+
+- Resource requests and limits
+- Health checks (liveness/readiness)
+- Rolling update strategy
+- Horizontal pod autoscaling
+- ConfigMaps and Secrets
+- Ingress with TLS
+- Network policies
+- Pod disruption budgets
+
+## When Invoked
+
+Generate complete Kubernetes manifests for deploying applications with production-grade configurations.