Laravel-echo-server dockerization issue - laravel

Question

I have a laravel project which should be a wrap to the docker containers. I added containers for PHP, MySQL, Redis, and Nginx. But laravel-echo-server doesn't work. All connections are failed.
My docker-compose.yml config:
version: '3.7'
services:
redis:
image: redis:alpine
container_name: wex_redis
volumes:
- redis_data:/data
command: redis-server --appendonly yes
networks:
- wex-network
app:
build:
context: ./
dockerfile: docker/containers/app/Dockerfile
working_dir: /app
container_name: wex_app
volumes:
- ./:/app
environment:
- DB_PORT=3306
- DB_HOST=database
networks:
- wex-network
web:
build:
context: ./
dockerfile: docker/containers/web/Dockerfile
working_dir: /app
container_name: wex_web
ports:
- 8082:80
- 6001:6001
networks:
- wex-network
database:
image: mysql:8
container_name: wex_db
volumes:
- dbdata:/var/lib/mysql
environment:
- MYSQL_DATABASE=${DB_DATABASE:-wex}
- MYSQL_ROOT_PASSWORD=root
ports:
- 33062:3306
command: --default-authentication-plugin=mysql_native_password
networks:
- wex-network
networks:
wex-network:
driver: bridge
volumes:
dbdata:
redis_data:
"web" container need for install npm dependensies and set nginx. Dockerfile for web container:
FROM node:10-alpine as build
WORKDIR /app
# Load dependencies
COPY ./package*.json ./yarn.lock ./
COPY ./webpack.mix.js ./
RUN yarn install
COPY ./resources/assets /app/resources/assets
COPY ./public/assets /app/public/assets
# Build
RUN yarn run production
# Laravel-echo-server
RUN yarn global add --prod --no-lockfile laravel-echo-server \
&& yarn cache clean
EXPOSE 6001
CMD ["laravel-echo-server", "start"]
# NGINX
FROM nginx:alpine
EXPOSE 80
COPY ./docker/containers/web/nginx.conf /etc/nginx/conf.d/default.conf
COPY ./public /app/public
COPY --from=build /app/public/assets /app/public/assets
Settings for laravel-echo-server:
{
"authHost": "http://localhost",
"authEndpoint": "/broadcasting/auth",
"clients": [],
"database": "redis",
"databaseConfig": {
"redis": {},
"sqlite": {
"databasePath": "/database/laravel-echo-server.sqlite"
}
},
"devMode": true,
"host": null,
"port": "6001",
"protocol": "http",
"socketio": {},
"sslCertPath": "",
"sslKeyPath": "",
"sslCertChainPath": "",
"sslPassphrase": "",
"subscribers": {
"http": true,
"redis": true
},
"apiOriginAllow": {
"allowCors": false,
"allowOrigin": "",
"allowMethods": "",
"allowHeaders": ""
}
}
Connection to the laravel-echo-server from js:
import Echo from 'laravel-echo'
window.io = require('socket.io-client');
window.Echo = new Echo({
broadcaster: 'socket.io',
host: window.location.hostname + ':6001'
});
"docker ps" command:
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
dddc2f5867b6 wex_app "/var/entrypoint.sh …" 43 minutes ago Up 43 minutes 9000/tcp wex_app
5fb70cf7da97 wex_web "nginx -g 'daemon of…" 19 hours ago Up 43 minutes 0.0.0.0:6001->6001/tcp, 0.0.0.0:8082->80/tcp wex_web
f2f331bf37e0 redis:alpine "docker-entrypoint.s…" 7 days ago Up 43 minutes 6379/tcp wex_redis
224e2af8c151 mysql:8 "docker-entrypoint.s…" 7 days ago Up 43 minutes 33060/tcp, 0.0.0.0:33062->3306/tcp wex_db
Could you please ask when I did a mistake? Why all connections to the laravel-echo server don't work?

Answer 1

Have a look for your Dockerfile, it use multi-stage builds.
There are 2 stages here, CMD ["laravel-echo-server", "start"] just in the first stage. But multi-stage builds's aim is to generate a final image with last stage. All previous stage is just intermediate to afford things to last stage.
So, when your docker-compose run web service, it just use the final image to start a container, so the container will just call ENTRYPOINT or CMD of last stage which will not start laravel-echo-server.