Add isolated UAT and production environments

k8s/base/api-deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: step3-api
+spec:
+  replicas: 2
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+      maxUnavailable: 0
+      maxSurge: 1
+  selector:
+    matchLabels:
+      app: step3-api
+  template:
+    metadata:
+      labels:
+        app: step3-api
+      annotations:
+        prometheus.io/scrape: "true"
+        prometheus.io/path: /metrics
+        prometheus.io/port: "5008"
+    spec:
+      containers:
+        - name: api
+          image: step3-questions:latest
+          imagePullPolicy: IfNotPresent
+          ports:
+            - containerPort: 5008
+          envFrom:
+            - configMapRef:
+                name: step3-runtime-config
+          env:
+            - name: MongoDB__ConnectionString
+              valueFrom:
+                secretKeyRef:
+                  name: step3-runtime-secrets
+                  key: mongodb-connection-string
+            - name: Jwt__Key
+              valueFrom:
+                secretKeyRef:
+                  name: step3-runtime-secrets
+                  key: jwt-key
+            - name: InternalPurge__Secret
+              valueFrom:
+                secretKeyRef:
+                  name: step3-runtime-secrets
+                  key: purge-secret
+            - name: Stripe__SecretKey
+              valueFrom:
+                secretKeyRef:
+                  name: step3-runtime-secrets
+                  key: stripe-secret-key
+            - name: Stripe__WebhookSecret
+              valueFrom:
+                secretKeyRef:
+                  name: step3-runtime-secrets
+                  key: stripe-webhook-secret
+          resources:
+            requests:
+              cpu: 250m
+              memory: 256Mi
+            limits:
+              cpu: "1"
+              memory: 512Mi
+          readinessProbe:
+            httpGet:
+              path: /readyz
+              port: 5008
+            initialDelaySeconds: 5
+            periodSeconds: 10
+            timeoutSeconds: 3
+            failureThreshold: 3
+          livenessProbe:
+            httpGet:
+              path: /healthz
+              port: 5008
+            initialDelaySeconds: 15
+            periodSeconds: 20
+            timeoutSeconds: 3
+            failureThreshold: 3
+

k8s/base/api-hpa.yaml

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+apiVersion: autoscaling/v2
+kind: HorizontalPodAutoscaler
+metadata:
+  name: step3-api
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: step3-api
+  minReplicas: 2
+  maxReplicas: 10
+  behavior:
+    scaleUp:
+      stabilizationWindowSeconds: 0
+      policies:
+        - type: Percent
+          value: 100
+          periodSeconds: 60
+        - type: Pods
+          value: 2
+          periodSeconds: 60
+      selectPolicy: Max
+    scaleDown:
+      stabilizationWindowSeconds: 300
+      policies:
+        - type: Percent
+          value: 25
+          periodSeconds: 60
+  metrics:
+    - type: Resource
+      resource:
+        name: cpu
+        target:
+          type: Utilization
+          averageUtilization: 60
+

k8s/base/api-pdb.yaml

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+apiVersion: policy/v1
+kind: PodDisruptionBudget
+metadata:
+  name: step3-api
+spec:
+  minAvailable: 1
+  selector:
+    matchLabels:
+      app: step3-api
+

k8s/base/api-service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: step3-api
+spec:
+  selector:
+    app: step3-api
+  type: NodePort
+  ports:
+    - name: http
+      port: 80
+      targetPort: 5008
+      nodePort: 30088
+

k8s/base/kustomization.yaml

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+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+  - api-deployment.yaml
+  - api-service.yaml
+  - api-hpa.yaml
+  - api-pdb.yaml
+  - web-deployment.yaml
+  - web-service.yaml

k8s/base/web-deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: step3-web
+spec:
+  replicas: 2
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+      maxUnavailable: 0
+      maxSurge: 1
+  selector:
+    matchLabels:
+      app: step3-web
+  template:
+    metadata:
+      labels:
+        app: step3-web
+    spec:
+      containers:
+        - name: web
+          image: step3-web:latest
+          imagePullPolicy: IfNotPresent
+          ports:
+            - containerPort: 8080
+          resources:
+            requests:
+              cpu: 50m
+              memory: 64Mi
+            limits:
+              cpu: 250m
+              memory: 128Mi
+          readinessProbe:
+            httpGet:
+              path: /healthz
+              port: 8080
+            initialDelaySeconds: 3
+            periodSeconds: 10
+            timeoutSeconds: 2
+          livenessProbe:
+            httpGet:
+              path: /healthz
+              port: 8080
+            initialDelaySeconds: 10
+            periodSeconds: 20
+            timeoutSeconds: 2
+

k8s/base/web-service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: step3-web
+spec:
+  selector:
+    app: step3-web
+  type: NodePort
+  ports:
+    - name: http
+      port: 80
+      targetPort: 8080
+      nodePort: 30089
+