How to use npm package docker-compose inside an active container? about docker-compose HOT 5 CLOSED

Can you please provide your Dockerfile and how you're importing docker-compose (this lib)

from docker-compose.

To make this work, docker-compose that is inside the container needs to talk with the "host's" docker.

See https://shisho.dev/blog/posts/docker-in-docker/

Specifically, the second part.

from docker-compose.

Thank you both for the replies. Here is the code I'm using:

File called server.js:

// The javascript file used to import docker-compose (this lib)
const compose = require('docker-compose');

compose.upAll({ cwd: "/opt/docker-compose-projects/hello-node", log: true }).then(
  () => {
    console.log('success');
  },
  (err) => {
    console.log('fail:', err.message);
  }
)

The Dockerfile creating the image myimage/test:v1.0:

FROM node:14-alpine

COPY ./package.json /app/package.json
COPY ./package-lock.json /app/package-lock.json
COPY ./server.js /app/server.js

WORKDIR /app

RUN npm install

VOLUME /app
VOLUME ["/opt/docker-compose-projects"]

COPY docker-compose-projects /opt/docker-compose-projects

CMD []
WORKDIR /app
ENTRYPOINT npm start --prefix /app

WORKDIR /opt/docker-compose-projects/

This is the docker-compose.yml file (creating the volume: /var/run/docker.sock:/var/run/docker.sock as @Steveb-p suggested).

version: "3.8"

services:
  docker_compose:
    image: "myimage/test:v1.0"
    container_name: docker_compose
    hostname: docker_compose
    working_dir: /opt/docker-compose-projects/
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock

Using the above code, I get the following error:

error: spawn docker-compose ENOENT

Locally (outside containers), the code works without errors.

from docker-compose.

error: spawn docker-compose ENOENT

basically means that docker-compose binary is not available. Install docker-compose inside the container, and I hope that should do it.

from docker-compose.

Thanks, I was able to get it working by adding this line to the Dockerfile:

COPY --from=docker/compose:latest /usr/local/bin/docker-compose /usr/bin/docker-compose

from docker-compose.