Angular + Docker: trouble with docker-compose

Question

I prepare Dockerfile for my angular application, which looks like that:

FROM node:11.6.0-alpine AS builder
COPY . ./ToDoApp
WORKDIR /ToDoApp
RUN npm i
RUN $(npm bin)/ng build --prod

FROM nginx:1.15.8-alpine
COPY --from=builder /ToDoApp/dist/ToDoApp/ /usr/share/nginx/html

I use commands:

docker build --rm -t todoapp:latest .
docker run --rm -d -p 90:80/tcp todoapp:latest

and site was avaiable on available:90.

No I trying prepare docker-compose.yml which I use to run my website and other services. Everything is works except my website. I have no idea why it didn't work. I still get a message "todoapp exited with code 0".

My docker-compose.yaml:

services:
  todoapp:
    container_name: todoapp
    restart: always
    build:
      context: ./ToDoApp
      dockerfile: Dockerfile
    ports:
      - "4200:80"
    volumes:
      - .:/usr/share/nginx/html

Anyone can help me?

It seems your Dockerfile doesn't run an actual webserver, ng build only builds angular but doesn't actually serve it. Exited with 0 means that there was no error, it just ran successfully because it finished building. If you also have nginx service in your docker-compose you need to make sure to mount its html folder together with your own container. — Blind Despair
– Blind Despair, Commented Feb 2, 2020 at 13:55
Actually I noticed that you have nginx image in your Dockerfile. And you do copy the files to the right place apparently. But I am not sure now does nginx actually start when you run this container? You can try the solution Talha Junaid suggested. — Blind Despair
– Blind Despair, Commented Feb 2, 2020 at 14:25

Talha Junaid · Accepted Answer · 2020-02-02 13:57:06Z

1

If you would like to keep your container running in detached mode, you need to run something in the foreground. An easy way to do this is to tail the /dev/null device as the CMD or ENTRYPOINT command of your Docker image.

Add the following as the last step in your docker file

CMD tail -f /dev/null

http://bigdatums.net/2017/11/07/how-to-keep-docker-containers-running/

answered Feb 2, 2020 at 13:57

Talha Junaid

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