How to run and access web server running inside a Docker container - docker

Question

I have trouble understanding how Docker handle things.
I am trying to run a node web server for development purpose. I have it defined in a docker-compose.yml and everything works fine when i run it from there. But when i manually run it from inside the container, it can't be reach from outside.
e.g : this is working fine
node:
image: node:10.15-stretch
tty: true
command: bash -c "./node_modules/.bin/encore dev-server --host 0.0.0.0 --public http://dev.local:8080 --port 8080 --disable-host-check --hot"
working_dir: /var/www/
volumes:
- ${PATH_SOURCE}:/var/www/
ports:
- 8080:8080
The files are now accessible from http://dev.local:8080 !
But i would prefer run it manually only when i need it...
So i remove the command from the docker-compose.yml and run it from inside the container :
node:
image: node:10.15-stretch
tty: true
working_dir: /var/www/
volumes:
- ${PATH_SOURCE}:/var/www/
ports:
- 8080:8080
docker-compose run node bash
root#1535e3c963cc:/var/www/# ./node_modules/.bin/encore dev-server --host 0.0.0.0 --public http://dev.local:8080 --port 8080 --disable-host-check --hot
The process is running fine but the files are not accessible from http://dev.local:8080 ...
I am sure there is something i am missing from Docker but i can't find what...
Thanks for your help.
EDIT:
here the full config
version: '3'
services:
apache:
image: httpd
volumes:
- ${PATH_SOURCE}/.docker/conf/apache/httpd.conf:/usr/local/apache2/conf/httpd.conf
- ${PATH_SOURCE}/.docker/conf/apache/httpd-vhosts.conf:/usr/local/apache2/conf/extra/httpd-vhosts.conf
- ${PATH_SOURCE}:/var/www/sadc/alarm
ports:
- 80:80
- 443:443
restart: always
depends_on:
- php
- postgres
php:
build: .docker
restart: always
ports:
- 9000:9000
volumes:
- ${PATH_SOURCE}/.docker/conf/php/php.ini:/etc/php/7.1/cli/php.ini
- ${PATH_SOURCE}/.docker/conf/php/php.ini:/etc/php/7.1/fpm/php.ini
- ${PATH_SOURCE}:/var/www/sadc/alarm
environment:
- PGDATESTYLE=ISO,DMY
working_dir: /var/www/sadc/alarm
postgres:
image: mdillon/postgis:10
restart: always
environment:
- POSTGRES_DB=${PG_DATABASE}
- POSTGRES_USER=${PG_USERNAME}
- POSTGRES_PASSWORD=${PG_PASSWORD}
- PGDATESTYLE=ISO,DMY
ports:
- 5432:5432
volumes:
- sadc-alarm-pgdata:/var/lib/postgresql/data
- ${PATH_SOURCE}:/var/www/sadc/alarm
- ${PATH_SOURCE}/.docker/conf/postgres/initdb.sql:/docker-entrypoint-initdb.d/initdb.sql
node:
image: node:10.15-stretch
tty: true
working_dir: /var/www/sadc/alarm
volumes:
- ${PATH_SOURCE}:/var/www/sadc/alarm
ports:
- 8080:8080
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
c6a394453de4 node:10.15-stretch "node" 2 hours ago Up 50 seconds 0.0.0.0:8080->8080/tcp alarm_node_1
5dcc8b936b58 httpd "httpd-foreground" 21 hours ago Up 49 seconds 0.0.0.0:80->80/tcp, 0.0.0.0:443->443/tcp alarm_apache_1
bb616453d0cc alarm_php "/bin/sh -c '/usr/sb…" 21 hours ago Up 49 seconds 0.0.0.0:9000->9000/tcp alarm_php_1
3af75f3a3716 mdillon/postgis:10 "docker-entrypoint.s…" 28 hours ago Up 49 seconds 0.0.0.0:5432->5432/tcp
EDIT 2
Problem is with "docker-compose run" method...
When i run the following using "docker exec" it works
docker exec -it node_alarm_1 bash
FINAL EDIT
OK.
So i missused "docker-compose run" method. It is "docker-compose exec" method that should be use because it's reuse the running container that is correctly mapped. "docker-compose run" instead run a non-mapped container...

Answer 1

docker-compose run it doesn't seem to respect port publishing described in docker-compose.yml file.
To fix your issue do the following
docker-compose run -p 8080:8080 node bash
or
docker-compose run --service-ports node bash