Dockerfile: use unprivileged nginx

This allows running this container w/ arbitrary uid support

Author: cfelder

CI/e2e/docker-compose.e2e.yaml

@@ -47,7 +47,7 @@ services:
     build:
       context: .
     ports:
-      - 4200:80
+      - 4200:8080
     volumes:
       - "./CI/e2e/frontend.config.e2e.json:/usr/share/nginx/html/assets/config.json"
     depends_on:

Dockerfile

@@ -8,8 +8,6 @@ RUN npm ci
 COPY . /frontend/
 RUN npx ng build
 
-FROM nginx:1.25-alpine
-RUN rm -rf /usr/share/nginx/html/*
+FROM nginxinc/nginx-unprivileged
 COPY --from=builder /frontend/dist/ /usr/share/nginx/html/
-COPY scripts/nginx.conf /etc/nginx/nginx.conf
-EXPOSE 80
+EXPOSE 8080