basic Dockerfile

todo-frontend/Dockerfile

@@ -0,0 +1,31 @@
+FROM registry.access.redhat.com/ubi8/nodejs-14 AS appbuild
+
+LABEL version="1.0"
+LABEL description="To Do List application builder"
+
+ENV REACT_APP_API_HOST=http://localhost:3000
+
+USER 0
+
+COPY . /tmp/todo-frontend
+
+RUN cd /tmp/todo-frontend && \
+    npm install && \
+    npm run build
+
+# https://github.com/sclorg/nginx-container
+FROM registry.access.redhat.com/ubi8/nginx-118
+
+LABEL version="1.0"
+LABEL description="To Do List application front-end"
+LABEL creationDate="2017-12-25"
+LABEL updatedDate="2021-05-19"
+
+COPY nginx.conf /etc/nginx/
+COPY --from=appbuild /tmp/todo-frontend/build /usr/share/nginx/html
+
+EXPOSE 8080
+
+USER nginx
+
+CMD nginx -g "daemon off;"

todo-frontend/nginx.conf

@@ -0,0 +1,65 @@
+# For more information on configuration, see:
+#   * Official English Documentation: http://nginx.org/en/docs/
+#   * Official Russian Documentation: http://nginx.org/ru/docs/
+
+env BACKEND_HOST;
+
+worker_processes auto;
+error_log stderr;
+pid /run/nginx.pid;
+
+# Load dynamic modules. See /usr/share/doc/nginx/README.dynamic.
+include /usr/share/nginx/modules/*.conf;
+
+events {
+    worker_connections 1024;
+}
+
+http {
+    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
+                      '$status $body_bytes_sent "$http_referer" '
+                      '"$http_user_agent" "$http_x_forwarded_for"';
+
+    sendfile            on;
+    tcp_nopush          on;
+    tcp_nodelay         on;
+    keepalive_timeout   65;
+    types_hash_max_size 2048;
+
+    include             /etc/nginx/mime.types;
+    default_type        application/octet-stream;
+
+    # Load modular configuration files from the /etc/nginx/conf.d directory.
+    # See http://nginx.org/en/docs/ngx_core_module.html#include
+    # for more information.
+    include /etc/nginx/conf.d/*.conf;
+
+    perl_set $backend 'sub { return $ENV{"BACKEND_HOST"}; }';
+
+    server {
+        listen       8080 default_server;
+        listen       [::]:8080 default_server;
+        server_name  _;
+        root         /usr/share/nginx/html;
+
+        # Load configuration files for the default server block.
+        include /etc/nginx/default.d/*.conf;
+
+        sub_filter_types application/javascript;
+        sub_filter '_BACKEND_' $backend;
+        sub_filter_once off;
+
+        location / {
+        }
+
+#         error_page 404 /404.html;
+#             location = /40x.html {
+#         }
+
+#         error_page 500 502 503 504 /50x.html;
+#             location = /50x.html {
+#         }
+
+    }
+
+}

todo-frontend/src/items/item-service.ts

@@ -1,8 +1,7 @@
 import wretch from 'wretch';
 import { Item } from './Item';
 
-// TODO move to env var
-const API_HOST = 'http://localhost:8080';
+const API_HOST = process.env.REACT_APP_API_HOST ?? 'http://localhost:8080';
 const itemApi = wretch(`${API_HOST}/api/items`);
 
 /**