Refactor Kubernetes deployment process to use manifest files and environment variable substitution

.github/workflows/deploy.yml

@@ -49,67 +49,17 @@ jobs:
       run: |
         export KUBECONFIG=kubeconfig
         
-        # Create deployment
-        cat <<EOF | kubectl apply -f -
-        apiVersion: apps/v1
-        kind: Deployment
-        metadata:
-          name: ${{ env.APP_NAME }}
-          namespace: ${{ env.NAMESPACE }}
-          labels:
-            app: ${{ env.APP_NAME }}
-        spec:
-          replicas: 2
-          selector:
-            matchLabels:
-              app: ${{ env.APP_NAME }}
-          template:
-            metadata:
-              labels:
-                app: ${{ env.APP_NAME }}
-            spec:
-              containers:
-              - name: ${{ env.APP_NAME }}
-                image: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ inputs.image_tag }}
-                ports:
-                - containerPort: 5173
-                resources:
-                  requests:
-                    memory: "256Mi"
-                    cpu: "250m"
-                  limits:
-                    memory: "512Mi"
-                    cpu: "500m"
-        ---
-        apiVersion: v1
-        kind: Service
-        metadata:
-          name: ${{ env.APP_NAME }}-service
-          namespace: ${{ env.NAMESPACE }}
-        spec:
-          selector:
-            app: ${{ env.APP_NAME }}
-          ports:
-            - protocol: TCP
-              port: 80
-              targetPort: 5173
-          type: ClusterIP
-        ---
-        apiVersion: traefik.containo.us/v1alpha1
-        kind: IngressRoute
-        metadata:
-          name: ${{ env.APP_NAME }}-ingress
-          namespace: ${{ env.NAMESPACE }}
-        spec:
-          entryPoints:
-            - web
-          routes:
-            - match: Host(\`${{ env.HOST }}\`)
-              kind: Rule
-              services:
-                - name: ${{ env.APP_NAME }}-service
-                  port: 80
-        EOF
+        # Replace variables in manifests and apply
+        for manifest in k8s/*.yaml; do
+          envsubst < "$manifest" | kubectl apply -f -
+        done
+      env:
+        APP_NAME: ${{ env.APP_NAME }}
+        NAMESPACE: ${{ env.NAMESPACE }}
+        REGISTRY: ${{ env.REGISTRY }}
+        IMAGE_NAME: ${{ env.IMAGE_NAME }}
+        IMAGE_TAG: ${{ inputs.image_tag }}
+        HOST: ${{ env.HOST }}
         
     - name: Verify deployment
       run: |