fixed nginx proxy misconfiguration

README.md

 # maed-exporter-deployment
 
 This project contains the specification of a kubernetes deployment of the [maed-exporter-app](https://git-ce.rwth-aachen.de/machine-data/maed-exporter/maed-exporter-app).
-
-The environment variable config for the frontend <> backend connection needs to be fixed.
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+It is configured such that the `maed-exporter-frontend-svc` can be exposed to a kubernetes ingress/gateway.
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apply-all-c4c.bat

+kubectl -n mdata --context=c4c apply -f .\backend-deployment.yaml -f .\frontend-deployment.yaml -f .\config-maps.yaml -f .\services.yaml
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apply-all.bat

-kubectl apply -f .\backend-deployment.yaml -f .\frontend-deployment.yaml -f .\config-maps.yaml -f .\services.yaml -n mdata
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+kubectl -n mdata apply -f .\backend-deployment.yaml -f .\frontend-deployment.yaml -f .\config-maps.yaml -f .\services.yaml
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backend-deployment.yaml

@@ -44,7 +44,7 @@ spec:
               path: /health
               port: 8080
             initialDelaySeconds: 30
-            periodSeconds: 15
+            periodSeconds: 60
             timeoutSeconds: 2
             failureThreshold: 3
           readinessProbe:
@@ -52,7 +52,7 @@ spec:
               path: /health
               port: 8080
             initialDelaySeconds: 30
-            periodSeconds: 10
+            periodSeconds: 60
             timeoutSeconds: 2
             failureThreshold: 3
       volumes:

config-maps.yaml

@@ -20,6 +20,9 @@ metadata:
     app.kubernetes.io/name: maed-exporter-app
 data:
   # hash $cookie_simple_session consistent;
+  # proxy_set_header X-Real-IP $remote_addr;
+  # proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+  # proxy_set_header X-Forwarded-Proto $scheme;
   default.conf.template: |
     upstream api {
         hash $cookie_simple_session consistent;
@@ -47,34 +50,7 @@ data:
           proxy_set_header X-Real-IP $remote_addr;
           proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
           proxy_set_header X-Forwarded-Proto $scheme;
+          proxy_http_version 1.1;
       }
     }
-  default.conf: |
-    upstream api {
-      hash $cookie_simple_session consistent;
-      server maed-exporter-backend-svc.mdata.svc.cluster.local:8080 max_fails=3 fail_timeout=30s;
-    }
     
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-    server {
-      listen ${FRONTEND_PORT};
-    
-      location / {
-          index index.html;
-          root /usr/share/nginx/html;
-          try_files $uri $uri/ /index.html =404;
-      }
-    
-      location /health {
-          access_log off;
-          add_header 'Content-Type' 'application/json';
-          return 200 '{"status":"healthy"}';
-      }
-    
-      location /api {
-          proxy_pass http://api;
-          proxy_set_header Host $http_host;
-          proxy_set_header X-Real-IP $remote_addr;
-          proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-          proxy_set_header X-Forwarded-Proto $scheme;
-      }
-    }
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frontend-deployment.yaml

@@ -47,16 +47,16 @@ spec:
             httpGet:
               path: /health
               port: 8090
-            initialDelaySeconds: 10
-            periodSeconds: 15
+            initialDelaySeconds: 15
+            periodSeconds: 60
             timeoutSeconds: 2
             failureThreshold: 3
           readinessProbe:
             httpGet:
               path: /health
               port: 8090
-            initialDelaySeconds: 5
-            periodSeconds: 10
+            initialDelaySeconds: 15
+            periodSeconds: 60
             timeoutSeconds: 2
             failureThreshold: 3
       volumes:

restart-c4c.bat

+kubectl -n mdata --context=c4c rollout restart deployment maed-exporter-backend
+kubectl -n mdata --context=c4c rollout restart deployment maed-exporter-frontend
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restart.bat

+kubectl -n mdata rollout restart deployment maed-exporter-backend
+kubectl -n mdata rollout restart deployment maed-exporter-frontend
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services.yaml

@@ -30,4 +30,3 @@ spec:
     - protocol: TCP
       port: 8090
       targetPort: 8090
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-  type: NodePort
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