BAH-2566 | add custom error page for internal error (#9)

kavitha-sundararajan · mohan-13 · web-flow · commit 6bc8cacf9ed5 · 2023-01-12T13:17:03.000+05:30
* BAH-2566 | added customized default backend for internal error

* BAH-2566 | updated custom error configs based on helm

Co-authored-by: MOHANKUMAR T &lt;mohan13081999@gmail.com&gt;
diff --git a/.github/workflows/deploy.yaml b/.github/workflows/deploy.yaml
@@ -54,6 +54,7 @@ jobs:
         run: aws eks update-kubeconfig --name $CLUSTER_NAME
       - name: Install Nginx Ingress
         run: |
+          kubectl apply -f custom-error-pages/custom-error.yaml -n ingress-nginx
           helm upgrade ingress-nginx ingress-nginx \
           --repo https://kubernetes.github.io/ingress-nginx \
           --namespace=ingress-nginx --create-namespace \
diff --git a/custom-error-pages/custom-error.yaml b/custom-error-pages/custom-error.yaml
@@ -0,0 +1,25 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: custom-error-pages
+data:
+  500: |
+    <!DOCTYPE html>
+    <html>
+    	<head>
+    		<title>500 Internal Server Error</title>
+    		<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+    		<link rel="stylesheet" href="style.css" />
+    	</head>
+    	<body>
+    		<img src="/bahmni-logo.png" alt="Bahmni" width="200" />
+    		<h1>Internal Server Error</h1>
+    		<p>The server encountered an internal error or
+    			misconfiguration and was unable to complete
+    			your request.</p>
+    		<p>Please contact the server administrator to inform them of the time this error occurred,
+    			and the actions you performed just before this error.</p>
+    		<p>More information about this error may be available
+    			in the server error log.</p>
+    	</body>
+    </html>
diff --git a/values/ingress_config.yaml b/values/ingress_config.yaml
@@ -5,6 +5,7 @@ controller:
         listen 2443;
         return 308 https://$host$request_uri;
       }
+    custom-http-errors: "500"
   containerPort:
     http: 80
     https: 443
@@ -18,3 +19,21 @@ controller:
       service.beta.kubernetes.io/aws-load-balancer-ssl-ports: "https"
       service.beta.kubernetes.io/aws-load-balancer-connection-idle-timeout: '3600'
       service.beta.kubernetes.io/aws-load-balancer-type: nlb
+defaultBackend:
+  enabled: true
+  image:
+    registry: registry.k8s.io
+    image: ingress-nginx/nginx-errors
+    tag: "v20220916-gd32f8c343@sha256:09c421ac743bace19ab77979b82186941c5125c95e62cdb40bdf41293b5c275c"
+  extraVolumes:
+    - name: custom-error-pages
+      configMap:
+        name: custom-error-pages
+        items:
+          - key: "500"
+            path: "500.html"
+          - key: "500"
+            path: "500.json"
+  extraVolumeMounts:
+    - name: custom-error-pages
+      mountPath: /www
