mosquitto cannot assign requested address in docker container - docker

Question

I've an php application with docker environment, everything works fine but now, I want to install mosquitto broker in my php container
This is my docker-compose.yaml:
version: '3.8'
services:
nginx:
image: nginx:stable-alpine
ports:
- "8288:80"
volumes:
- ./:/var/www/
- ./dockers/nginx/default.conf:/etc/nginx/conf.d/default.conf
depends_on:
- php
php:
build:
context: .
dockerfile: dockers/php/Dockerfile
volumes:
- ./:/var/www/
- ./dockers/mosquitto/mosquitto.conf:/etc/mosquitto/conf.d/default.conf
ports:
- 9004:9000
- 1883:1883
depends_on:
- mysql
mysql:
image: mysql:8.0
container_name: access-control-mysql
tty: true
ports:
- "7306:3306"
volumes:
- ./mysql:/var/lib/mysql
environment:
MYSQL_DATABASE: ${DB_DATABASE}
MYSQL_USER: ${DB_USERNAME}
MYSQL_PASSWORD: ${DB_PASSWORD}
MYSQL_ROOT_PASSWORD: ${DB_ROOT_PASSWORD}
This is Dockerfile which build php container
FROM 8.1-fpm
RUN apt-get update -yqq
# Install & enable Xdebug for code coverage reports
RUN pecl install xdebug imagick
RUN docker-php-ext-enable xdebug imagick
RUN apt-get install -y mosquitto libmosquitto-dev
# Set working directory
WORKDIR /var/www
# Add script file to run command
COPY scripts/cmd.sh /usr/local/bin/cmd
RUN chmod 0755 /usr/local/bin/cmd
# Change current user to www
USER www
# Expose port 9000 and start php-fpm server
EXPOSE 9000
CMD ["/usr/local/bin/cmd"]
Then mosquitto.conf
listener 1883
allow_anonymous true
When I start all container, it works fine. However, mosquitto seem not work and when I check mosquitto by command docker-compose exec php mosquitto, it display error:
1669015395: mosquitto version 2.0.11 starting
1669015395: Using default config.
1669015395: Starting in local only mode. Connections will only be possible from clients running on this machine.
1669015395: Create a configuration file which defines a listener to allow remote access.
1669015395: For more details see https://mosquitto.org/documentation/authentication-methods/
1669015395: Opening ipv4 listen socket on port 1883.
1669015395: Opening ipv6 listen socket on port 1883.
1669015395: Error: Cannot assign requested address
1669015395: mosquitto version 2.0.11 running
It shows error Error: Cannot assign requested address, I've use the same config with separate mosquitto container in docker-compose.yaml file and it worked.
Mosquitto container in docker-compose
mqtt:
image: eclipse-mosquitto:latest
ports:
- 1884:1883
volumes:
- ./dockers/mosquitto/mosquitto.conf:/mosquitto/config/mosquitto.conf
- ./mosquitto/data:/mosquitto/data
- ./mosquitto/log:/mosquitto/log
I also try add bind_address into listener in mosquitto.conf: listener 1883 [php container ip] but it return same error.
Can someone help? Thanks.
Update
File cmd.sh
/usr/local/bin/composer install
php artisan config:cache
php artisan migrate
php artisan ide-helper:generate
php artisan ide-helper:models --nowrite
php artisan db:seed
php-fpm

Answer 1

mosquitto-php does not require you to run the broker in the same container, it's pre-requisite is libmosquitto which can be installed with just
RUN apt-get install -y libmosquitto-dev
You should then run the broker for your project from the eclipse-mosquitto container, not try and include it directly into the php container.
And for clarity, as I said in the comments mosquitto will not load ANY configuration file unless explicitly told where the file is with the -c command line option. Just because /etc/mosquitto.conf exists doesn't mean it will get loaded, unless you run mosquitto -c /etc/mosqutto.conf. This is why the logs you showed explicitly say it is not using any config file.
1669015395: Using default config.
1669015395: Starting in local only mode. Connections will only be possible from clients running on this machine.