add configmap with conf.d for nginx deployment

apps/applets/hello/base/kustomization.yaml

@@ -9,3 +9,4 @@ resources:
   - redis/statefulset.yaml
   - nginx/deployment.yaml
   - nginx/service.yaml
+  - nginx/configMap.yaml

apps/applets/hello/base/nginx/configMap.yaml

@@ -0,0 +1,13 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: nginx-config
+data:
+  custom-nginx.conf: |
+    server {
+      listen 8080;
+      location / {
+          root /usr/share/nginx/html;
+          index index.html index.htm;
+      }
+    }

apps/applets/hello/base/nginx/deployment.yaml

@@ -18,20 +18,20 @@ spec:
       - name: nginx-cdn
         image: nginx:stable
         ports:
-        - containerPort: 80
+        - containerPort: 8080
         volumeMounts:
         - name: hello-volume
           mountPath: /usr/share/nginx/html
         - name: nginx-temp
           mountPath: /var/cache/nginx
+        - name: config-volume
+          mountPath: /etc/nginx/conf.d
+          readOnly: true
         securityContext:
           runAsUser: 1000
           runAsGroup: 1000
           readOnlyRootFilesystem: true
-          allowPrivilegeEscalation: false 
-          capabilities:
-            add:
-            - NET_BIND_SERVICE
+          allowPrivilegeEscalation: false
         resources:
           requests:
             cpu: "100m"
@@ -45,3 +45,6 @@ spec:
           claimName: hello-pvc
       - name: nginx-temp
         emptyDir: {}
+      - name: config-volume
+        configMap:
+          name: nginx-config

apps/applets/hello/base/nginx/service.yaml

@@ -8,5 +8,5 @@ spec:
   ports:
   - protocol: TCP
     port: 80
-    targetPort: 80
+    targetPort: 8080
   type: ClusterIP