[BACKEND] Initialize Go backend structure and dependencies (#23)

k8s/backend.yaml

@@ -0,0 +1,100 @@
+# k8s/backend.yaml
+# ============================================
+# Chat Switchboard - Backend Deployment
+# ============================================
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: switchboard-be${DEPLOY_SUFFIX}
+  namespace: ${NAMESPACE}
+  labels:
+    app: switchboard
+    component: backend
+    env: ${ENVIRONMENT}
+spec:
+  replicas: ${BE_REPLICAS}
+  selector:
+    matchLabels:
+      app: switchboard
+      component: backend
+      env: ${ENVIRONMENT}
+  template:
+    metadata:
+      labels:
+        app: switchboard
+        component: backend
+        env: ${ENVIRONMENT}
+    spec:
+      containers:
+      - name: backend
+        image: ${BE_IMAGE}:${IMAGE_TAG}
+        imagePullPolicy: Always
+        ports:
+        - containerPort: 8080
+          name: http
+        env:
+        - name: ENVIRONMENT
+          value: "${ENVIRONMENT}"
+        - name: PORT
+          value: "8080"
+        - name: POSTGRES_HOST
+          value: "${POSTGRES_HOST}"
+        - name: POSTGRES_PORT
+          value: "${POSTGRES_PORT}"
+        - name: POSTGRES_DB
+          value: "${DB_NAME}"
+        - name: POSTGRES_USER
+          valueFrom:
+            secretKeyRef:
+              name: switchboard-db-credentials
+              key: POSTGRES_USER
+        - name: POSTGRES_PASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: switchboard-db-credentials
+              key: POSTGRES_PASSWORD
+        - name: DATABASE_URL
+          value: "postgres://$(POSTGRES_USER):$(POSTGRES_PASSWORD)@${POSTGRES_HOST}:${POSTGRES_PORT}/${DB_NAME}?sslmode=disable"
+        resources:
+          requests:
+            memory: "${BE_MEMORY_REQUEST}"
+            cpu: "${BE_CPU_REQUEST}"
+          limits:
+            memory: "${BE_MEMORY_LIMIT}"
+            cpu: "${BE_CPU_LIMIT}"
+        readinessProbe:
+          httpGet:
+            path: /health
+            port: 8080
+          initialDelaySeconds: 5
+          periodSeconds: 10
+          timeoutSeconds: 3
+          failureThreshold: 3
+        livenessProbe:
+          httpGet:
+            path: /health
+            port: 8080
+          initialDelaySeconds: 10
+          periodSeconds: 30
+          timeoutSeconds: 5
+          failureThreshold: 3
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: switchboard-be${DEPLOY_SUFFIX}
+  namespace: ${NAMESPACE}
+  labels:
+    app: switchboard
+    component: backend
+    env: ${ENVIRONMENT}
+spec:
+  selector:
+    app: switchboard
+    component: backend
+    env: ${ENVIRONMENT}
+  ports:
+  - protocol: TCP
+    port: 8080
+    targetPort: 8080
+    name: http