Add Kubernetes configuration for the frontend.Aadd Kubernetes configu…

…ration for the frontend.

docker/kubernetes/data-pvc.yaml

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+kind: PersistentVolumeClaim
+apiVersion: v1
+metadata:
+  name: po-data
+  labels:
+    app: po
+spec:
+  accessModes:
+    - ReadWriteMany
+  resources:
+    requests:
+      storage: 1Gi

docker/kubernetes/frontend-conf.yaml

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+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: po-frontend-config
+  labels:
+    app: po
+    component: frontend
+data:
+  nginx.conf: |  
+    server {
+      listen 80;
+      listen [::]:80;
+
+      # Product Opener needs a root domain + a wildcard for all subdomains
+      server_name po.992d6328c7ec48169146.westeurope.aksapp.io *.po.992d6328c7ec48169146.westeurope.aksapp.io;
+
+      root /opt/product-opener/html/;
+
+      gzip on;
+      gzip_min_length 1000;
+
+      # Add index.php to the list if you are using PHP
+      index index.html index.htm index.nginx-debian.html;
+
+      location ~* \.(eot|ttf|woff|woff2)$ {
+        add_header Access-Control-Allow-Origin *;
+      }
+
+      location ~ ^/images/products/ {
+        add_header Link "<https://creativecommons.org/licenses/by-sa/3.0/>; rel='license'; title='CC-BY-SA 3.0'";
+      }
+
+      location ~ ^/(favicon.ico) {
+        # First attempt to serve request as file, then
+        # as directory, then fall back to displaying a 404.
+        try_files $uri $uri/ =404;
+      }
+
+      # Static files are served directly by NGINX
+
+      location ~ ^/(.well-known|images|js|css|rss|data|files|resources|foundation|bower_components)/ {
+        # First attempt to serve request as file, then
+        # as directory, then fall back to displaying a 404.
+        try_files $uri $uri/ =404;
+      }
+
+      location = /robots.txt {
+        try_files $uri $uri/ =404;
+      }
+
+      # Dynamically generated files and CGI scripts are passed
+      # to the Apache + mod_perl server running on the backend container
+
+      location / {
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_pass http://example.org/cgi/display.pl?;
+      }
+
+      location /cgi/ {
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_pass http://example.org;
+      }
+    }

docker/kubernetes/frontend-deployment.yaml

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+apiVersion: extensions/v1beta1
+kind: Deployment
+metadata:
+  name: po-frontend
+  labels:
+    app: po
+    component: frontend
+spec:
+  replicas: 1
+  template:
+    metadata:
+      labels:
+        app: po
+        component: frontend
+    spec:
+      containers:
+        - name: po-frontend
+          image: openfoodfacts/productopener-frontend
+          lifecycle:
+            postStart:
+              exec:
+                command:
+                - '/bin/sh'
+                - '-c'
+                - >
+                  cp -Lrf /tmp/nginx.conf /etc/nginx/conf.d/default.conf;
+                  nginx -s reload; touch /var/log/nginx/conf.done
+          ports:
+            - containerPort: 80
+          volumeMounts:
+            - name: frontend-config
+              mountPath: "/tmp/nginx.conf"
+              subPath: nginx.conf
+            - name: product-images
+              mountPath: "/opt/product-opener/html/images/products/"
+      volumes:
+        - name: frontend-config
+          configMap:
+            name: po-frontend-config
+        - name: product-images
+          persistentVolumeClaim:
+            claimName: po-images

docker/kubernetes/frontend-service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: po-frontend
+  labels:
+    app: po
+    component: frontend
+spec:
+  type: LoadBalancer
+  ports:
+    - port: 80
+      protocol: TCP
+      name: http
+  selector:
+    app: po
+    component: frontend

docker/kubernetes/images-pvc.yaml

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+kind: PersistentVolumeClaim
+apiVersion: v1
+metadata:
+  name: po-images
+  labels:
+    app: po
+spec:
+  accessModes:
+    - ReadWriteMany
+  resources:
+    requests:
+      storage: 1Gi

docker/kubernetes/ingress.yaml

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+apiVersion: extensions/v1beta1
+kind: Ingress
+metadata:
+  name: po
+  labels:
+    app: po
+spec:
+  backend:
+    serviceName: po-frontend
+    servicePort: 80
+  rules:
+  - host: "*.po.992d6328c7ec48169146.westeurope.aksapp.io"
+    http:
+      paths:
+        - path: /
+          backend:
+            serviceName: po-frontend
+            servicePort: 80