chore: import upstream snapshot with attribution

cli-tool/components/skills/development/devops-iac-engineer/examples/kubernetes/complete-app.yaml

@@ -0,0 +1,232 @@
+# Complete Kubernetes Application Example
+# This file contains all resources needed for a production web application
+
+---
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: example-app
+  labels:
+    name: example-app
+    environment: production
+
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: app-config
+  namespace: example-app
+data:
+  APP_ENV: "production"
+  LOG_LEVEL: "info"
+  PORT: "8080"
+  DATABASE_HOST: "postgres.example-app.svc.cluster.local"
+  DATABASE_PORT: "5432"
+  DATABASE_NAME: "appdb"
+
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: app-secrets
+  namespace: example-app
+type: Opaque
+stringData:
+  DATABASE_PASSWORD: "changeme-use-sealed-secrets"
+  API_KEY: "changeme-use-external-secrets"
+
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: app
+  namespace: example-app
+
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: app
+  namespace: example-app
+  labels:
+    app: example-app
+    tier: frontend
+spec:
+  replicas: 3
+  revisionHistoryLimit: 10
+
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+      maxSurge: 1
+      maxUnavailable: 0
+
+  selector:
+    matchLabels:
+      app: example-app
+
+  template:
+    metadata:
+      labels:
+        app: example-app
+        tier: frontend
+        version: v1.0.0
+      annotations:
+        prometheus.io/scrape: "true"
+        prometheus.io/port: "8080"
+        prometheus.io/path: "/metrics"
+
+    spec:
+      serviceAccountName: app
+
+      securityContext:
+        runAsNonRoot: true
+        runAsUser: 1000
+        fsGroup: 2000
+
+      containers:
+      - name: app
+        image: nginx:1.25-alpine
+        imagePullPolicy: IfNotPresent
+
+        ports:
+        - name: http
+          containerPort: 8080
+          protocol: TCP
+
+        envFrom:
+        - configMapRef:
+            name: app-config
+        - secretRef:
+            name: app-secrets
+
+        resources:
+          requests:
+            memory: "256Mi"
+            cpu: "250m"
+          limits:
+            memory: "512Mi"
+            cpu: "500m"
+
+        livenessProbe:
+          httpGet:
+            path: /healthz
+            port: 8080
+          initialDelaySeconds: 30
+          periodSeconds: 10
+          timeoutSeconds: 5
+          failureThreshold: 3
+
+        readinessProbe:
+          httpGet:
+            path: /ready
+            port: 8080
+          initialDelaySeconds: 10
+          periodSeconds: 5
+          timeoutSeconds: 3
+
+        securityContext:
+          allowPrivilegeEscalation: false
+          readOnlyRootFilesystem: true
+          runAsNonRoot: true
+          runAsUser: 1000
+          capabilities:
+            drop:
+            - ALL
+
+        volumeMounts:
+        - name: tmp
+          mountPath: /tmp
+        - name: cache
+          mountPath: /var/cache/nginx
+
+      volumes:
+      - name: tmp
+        emptyDir: {}
+      - name: cache
+        emptyDir: {}
+
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: app
+  namespace: example-app
+  labels:
+    app: example-app
+spec:
+  type: ClusterIP
+  selector:
+    app: example-app
+  ports:
+  - name: http
+    port: 80
+    targetPort: 8080
+    protocol: TCP
+
+---
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: app
+  namespace: example-app
+  annotations:
+    kubernetes.io/ingress.class: nginx
+    cert-manager.io/cluster-issuer: letsencrypt-prod
+    nginx.ingress.kubernetes.io/ssl-redirect: "true"
+    nginx.ingress.kubernetes.io/rate-limit: "100"
+spec:
+  tls:
+  - hosts:
+    - app.example.com
+    secretName: app-tls
+  rules:
+  - host: app.example.com
+    http:
+      paths:
+      - path: /
+        pathType: Prefix
+        backend:
+          service:
+            name: app
+            port:
+              number: 80
+
+---
+apiVersion: autoscaling/v2
+kind: HorizontalPodAutoscaler
+metadata:
+  name: app
+  namespace: example-app
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: app
+  minReplicas: 3
+  maxReplicas: 20
+  metrics:
+  - type: Resource
+    resource:
+      name: cpu
+      target:
+        type: Utilization
+        averageUtilization: 70
+  - type: Resource
+    resource:
+      name: memory
+      target:
+        type: Utilization
+        averageUtilization: 80
+
+---
+apiVersion: policy/v1
+kind: PodDisruptionBudget
+metadata:
+  name: app
+  namespace: example-app
+spec:
+  minAvailable: 2
+  selector:
+    matchLabels:
+      app: example-app