added port

.gitignore

@@ -22,3 +22,4 @@ dist-ssr
 *.njsproj
 *.sln
 *.sw?
+.env

Dockerfile

@@ -12,10 +12,14 @@ RUN yarn build
 
 FROM nginx:stable-alpine as production-stage
 
+ARG NGINX_PORT=3000
+
+ENV NGINX_PORT ${NGINX_PORT}
+
 COPY --from=build-stage /app/dist /usr/share/nginx/html
 
-COPY nginx.conf /etc/nginx/nginx.conf
+COPY nginx.conf /tmp/nginx.conf
 
+RUN sed "s|%NGINX_PORT%|${NGINX_PORT}|g" /tmp/nginx.conf > /etc/nginx/nginx.conf
 
-EXPOSE 3002
 CMD ["nginx", "-g", "daemon off;"]

docker-compose.yaml

@@ -0,0 +1,13 @@
+version: '3.8'
+
+services:
+  frontend:
+    ports:
+      - ${NGINX_PORT}:${NGINX_PORT}
+    build:
+      context: .
+      dockerfile: Dockerfile
+      args:
+        NGINX_PORT: ${NGINX_PORT}
+    environment:
+      - NGINX_PORT=${NGINX_PORT}

nginx.conf

@@ -9,7 +9,7 @@ http {
     }
 
     server {
-        listen ${NGINX_PORT:-3002};
+        listen %NGINX_PORT%;
         server_name localhost;
 
         location / {