add cloudbuild for api-gateway

Author: simbayippy

cloudbuild.yaml

@@ -65,6 +65,26 @@ steps:
         "asia-southeast1-docker.pkg.dev/cs3219-g11-peerprep/cs3219-g11-repo/user-svc:latest",
       ]
 
+  # Build and push api-gateway
+  - name: "gcr.io/cloud-builders/docker"
+    args:
+      [
+        "build",
+        "-t",
+        "asia-southeast1-docker.pkg.dev/cs3219-g11-peerprep/cs3219-g11-repo/api-gateway:latest",
+        "-f",
+        "api-gateway/Dockerfile",
+        "api-gateway",
+      ]
+
+  # Push the api-gateway image to Artifact Registry
+  - name: "gcr.io/cloud-builders/docker"
+    args:
+      [
+        "push",
+        "asia-southeast1-docker.pkg.dev/cs3219-g11-peerprep/cs3219-g11-repo/api-gateway:latest",
+      ]
+
   # Step 2: Clean up and deploy to GKE
 
   # Clean up before deploying peerprep-fe
@@ -106,6 +126,19 @@ steps:
       - --location=asia-southeast1
       - --cluster=cs3219-g11-peerprep-kubes
 
+  # Clean up before deploying api-gateway
+  - name: "ubuntu"
+    args: ["rm", "-rf", "output"]
+
+  # Deploy api-gateway to Google Kubernetes Engine (GKE)
+  - name: "gcr.io/cloud-builders/gke-deploy"
+    args:
+      - run
+      - --filename=k8s/api-gateway.yml
+      - --image=asia-southeast1-docker.pkg.dev/cs3219-g11-peerprep/cs3219-g11-repo/api-gateway:latest
+      - --location=asia-southeast1
+      - --cluster=cs3219-g11-peerprep-kubes
+
   # Step 3: update the deployments with the new images
 
   # Update the peerprep-fe deployment
@@ -141,6 +174,17 @@ steps:
       - "CLOUDSDK_COMPUTE_ZONE=asia-southeast1"
       - "CLOUDSDK_CONTAINER_CLUSTER=cs3219-g11-peerprep-kubes"
 
+  # Update the api-gateway deployment
+  - name: "gcr.io/cloud-builders/kubectl"
+    args:
+      - "set"
+      - "image"
+      - "deployment/api-gateway"
+      - "api-gateway=asia-southeast1-docker.pkg.dev/cs3219-g11-peerprep/cs3219-g11-repo/api-gateway:latest"
+    env:
+      - "CLOUDSDK_COMPUTE_ZONE=asia-southeast1"
+      - "CLOUDSDK_CONTAINER_CLUSTER=cs3219-g11-peerprep-kubes"
+
 substitutions:
   _NEXT_PUBLIC_API_GATEWAY_URL: ""
   _NEXT_PUBLIC_GITHUB_CLIENT_ID: ""
@@ -152,3 +196,4 @@ images:
   - "asia-southeast1-docker.pkg.dev/cs3219-g11-peerprep/cs3219-g11-repo/peerprep-fe:latest"
   - "asia-southeast1-docker.pkg.dev/cs3219-g11-peerprep/cs3219-g11-repo/question-svc:latest"
   - "asia-southeast1-docker.pkg.dev/cs3219-g11-peerprep/cs3219-g11-repo/user-svc:latest"
+  - "asia-southeast1-docker.pkg.dev/cs3219-g11-peerprep/cs3219-g11-repo/api-gateway:latest"

k8s/api-gateway.yml

@@ -0,0 +1,68 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: api-gateway
+  labels:
+    type: backend
+    app: api-gateway
+spec:
+  selector:
+    matchLabels:
+      type: backend
+      app: api-gateway
+  template:
+    metadata:
+      name: api-gateway
+      labels:
+        type: backend
+        app: api-gateway
+    spec:
+      containers:
+        - name: api-gateway
+          image: asia-southeast1-docker.pkg.dev/cs3219-g11-peerprep/cs3219-g11-repo/api-gateway:latest
+          imagePullPolicy: Always
+          resources:
+            requests:
+              cpu: "100m"
+              memory: "128Mi"
+            limits:
+              cpu: "200m"
+              memory: "256Mi"
+          ports:
+            - containerPort: 8001
+          envFrom:
+            - secretRef:
+                name: api-gateway-config
+      dnsPolicy: ClusterFirst
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: api-gateway
+spec:
+  type: LoadBalancer
+  ports:
+    - port: 8001
+      targetPort: 8001
+  selector:
+    type: backend
+    app: api-gateway
+---
+apiVersion: autoscaling/v2
+kind: HorizontalPodAutoscaler
+metadata:
+  name: api-gateway
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: api-gateway
+  minReplicas: 1
+  maxReplicas: 5
+  metrics:
+    - type: Resource
+      resource:
+        name: cpu
+        target:
+          type: Utilization
+          averageUtilization: 80