Change nginx image source (#44)

* Change nginx image source

Change the image source to avoid hitting the Docker Hub pull rate limit.

* build: dockerfile nginx execution cmd
* build: nginx conf target directory
* build: nginx configuration for ubi image

---------

Co-authored-by: Tero Virtanen <tero.tapio.virtanen@gmail.com>

Author: japauliina

Dockerfile

@@ -37,7 +37,7 @@ COPY --chown=root:root . .
 RUN npm install -D webpack-cli && npm run dist
 
 # =======================================================
-FROM nginx:1.26.1-alpine AS production
+FROM registry.access.redhat.com/ubi9/nginx-122 AS production
 # =======================================================
 # Add application sources to a directory that the assemble script expects them
 # and set permissions so that the container runs without root access
@@ -48,8 +48,11 @@ RUN chgrp -R 0 /usr/share/nginx/html && \
 
 COPY --from=staticbuilder /app/dist /usr/share/nginx/html
 
-USER 1001
+COPY nginx.conf /opt/app-root/etc/nginx.default.d/default.conf
 
-COPY nginx.conf /etc/nginx/conf.d/default.conf
+USER 1001
 
 EXPOSE 8080
+
+# Run script uses standard ways to run the application
+CMD ["/bin/bash", "-c", "nginx -g \"daemon off;\""]

nginx.conf

@@ -1,26 +1,21 @@
-server {
-    listen       8080;
-    server_name  localhost;
+location /healthz {
+    return 200;
 
-    location /healthz {
-        return 200;
-
-        access_log  off;
-    }
+    access_log  off;
+}
 
-    location /readiness {
-        return 200;
+location /readiness {
+    return 200;
 
-        access_log  off;
-    }
+    access_log  off;
+}
 
-    location / {
-        root   /usr/share/nginx/html;
-        try_files $uri /index.html;
-    }
+location / {
+    root   /usr/share/nginx/html;
+    try_files $uri /index.html;
+}
 
-    error_page   500 502 503 504  /50x.html;
-    location = /50x.html {
-        root   /usr/share/nginx/html;
-    }
+error_page   500 502 503 504  /50x.html;
+location = /50x.html {
+    root   /usr/share/nginx/html;
 }