I'm using AWS ECS repository for docker images.
My docker-compose.yml file looks like:
version: "3"
services:
my-front-end:
image: myFrontEndImage:myTag
links:
- my-back-end
ports:
- "8080:8080"
logging:
driver: 'json-file'
options:
max-size: "50m"
my-back-end:
image: myBackEndImage:myTag
ports:
- "3000:3000"
logging:
driver: 'json-file'
options:
max-size: "50m"
And what I need is, to be able to pass a environment variable from the docker-compose file, into my docker image.
What I tried was adding the lines for environment (following the example).
version: "3"
services:
my-front-end:
image: myFrontEndImage:myTag
links:
- my-back-end
environment:
- BACKEND_SERVER_PORT=3001
ports:
- "8080:8080"
logging:
driver: 'json-file'
options:
max-size: "50m"
my-back-end:
image: myBackEndImage:myTag
ports:
- "3000:3000"
logging:
driver: 'json-file'
options:
max-size: "50m"
And then in my project (which is a VueJS project) I'm trying to access it by process.env.BACKEND_SERVER_PORT. But I do not see my value and when I tried console.log(process.env); I see that it has only the value {NODE_ENV: "development"}.
So my question here is, how to pass the env variable from the docker-compose to my docker image, so that I will be able to use it inside my project?
Everything in the project works fine, I'm working on this project a long time and docker-compose file works, it's just, now when I have a need of adding this environment variable, I can't make it work.
EDIT: adding few more files, per request in comment.
The .Dockerfile for my-front-end looks like:
FROM node:8.11.1
WORKDIR /app
COPY package*.json ./
RUN npm i npm@latest -g && \
npm install
COPY . .
CMD ["npm", "start"]
As mentioned, this is an VueJS application and here is the part of package.json which you may be interested in:
"scripts": {
"dev": "webpack-dev-server --inline --progress --config build/webpack.dev.conf.js",
"start": "npm run dev",
"build": "node build/build.js"
},
While the .Dockerfile for my-back-end looks like:
FROM node:8.11.1
WORKDIR /app/server
COPY package*.json ./
RUN npm i npm@latest -g && \
npm install
COPY . .
CMD ["npm", "start"]
My back-end is actually an express.js app that is listening on a separate port and the app is placed in a folder server under the root of the project.
Here is the part of package.json which you may be interested in:
"scripts": {
"start": "nodemon src/app.js",
"test": "echo \"Error: no test specified\" && exit 1"
},
