{"id":1870,"date":"2021-05-22T17:42:43","date_gmt":"2021-05-22T16:42:43","guid":{"rendered":"https:\/\/www.codingfriends.com\/?p=1870"},"modified":"2021-05-22T17:46:19","modified_gmt":"2021-05-22T16:46:19","slug":"docker-composer-postgres-pgadmin-nginx-php-fpm-with-different-php-versions","status":"publish","type":"post","link":"https:\/\/www.codingfriends.com\/index.php\/2021\/05\/22\/docker-composer-postgres-pgadmin-nginx-php-fpm-with-different-php-versions\/","title":{"rendered":"Docker composer – postgres \/ pgadmin \/ nginx \/ php-fpm with different php versions"},"content":{"rendered":"\n

This post is using the default docker files that have already been pre-defined, the second post will use an alpine mini root file system<\/a> as a base and then add on the additional packages for each part of this setup.<\/p>\n\n\n\n

Folder listings<\/h2>\n\n\n\n

My folder listing for the below.<\/p>\n\n\n\n

.\/nginx:\nconf.d  Dockerfile  nginx.conf  sites\n\n.\/nginx\/conf.d:\ndefault.conf\n\n.\/nginx\/sites:\ndefault.conf\n\n.\/php-fpm:\nDockerfile  xdebug.ini\n\n(extras are for the logs \/ postgres volumne mounted data)\n.\/logs\n\n.\/posgtres-data\n<\/code><\/pre>\n\n\n\n
Enviornment file<\/h2>\n\n\n\n
To start with, I like to create a env(ironment) file that will denote internal settings used within the docker file builds.  This file below will denote the php version that I wish to use and also since we are using php-fpm in this development environment, then might as well enable xdebug as well.<\/p>\n\n\n\n
Below is the local.env — please save as that as well, shall include a git repo below.<\/p>\n\n\n\n
PHP_VERSION=8.0\n\nPOSTGRES_PASSWORD= example\nPOSTGRES_USER= postgres\n      \nPGADMIN_DEFAULT_PASSWORD= example\nPGADMIN_DEFAULT_EMAIL=ian@codingfriends.com\n\nXDEBUG_PORT=9000<\/code><\/pre>\n\n\n\n
This starts of with the PHP version, follows onto the postgres default details with also the PGADMIN default login details with the tail of the environment details having the xdebug_port defined.<\/p>\n\n\n\n
Docker-composer file<\/h2>\n\n\n\n
The next part is the docker-composer file, this describes how the containers will either rely on each other (depends_on within the docker composer file) networks to use and also the ports to expose.  As a side thing, I always found the ports to be funny way around so it is <outside of the container>:<internal to the container> so port 8080:80 will expose the interal port 80 (websites that aren’t using SSL run on this port for example) to the outside world on port 8080 e.g. to host you can do http:\/\/localhost:8080 to view the containers port 80 service.<\/p>\n\n\n\n
Also, if you are not altering the base docker files that are being pulled down from the docker repo (shall do another post about altering this to a local repo or AWS ECS<\/a>) then there is no build descriptions akin to the db container description below, but for php-fpm \/ nginx there are some extra build steps required for this demo hence the Dockerfile(s) in those areas.<\/p>\n\n\n\n
# Use postgres\/example user\/password credentials\nversion: '3.1'\n\nservices:\n\n  db:\n    image: postgres\n    restart: always\n    hostname: postgresDB\n    container_name: postgresDB\n    environment:\n      POSTGRES_PASSWORD: $POSTGRES_PASSWORD\n      POSTGRES_USER: $POSTGRES_USER\n    volumes:\n      - .\/postgres-data:\/var\/lib\/postgresql\/data\n    ports:\n      - 5432:5432\n    networks:\n      - iKnowNW\n\n  pgdamin4:\n    image: dpage\/pgadmin4\n    hostname: pgadmin4\n    container_name: pgadmin4\n    depends_on:\n      - db \n    restart: always\n    environment:\n      PGADMIN_DEFAULT_PASSWORD: $PGADMIN_DEFAULT_PASSWORD\n      PGADMIN_DEFAULT_EMAIL: $PGADMIN_DEFAULT_EMAIL\n    ports:\n      - 8080:80\n    networks:\n      - iKnowNW\n\n  php-fpm:\n    build:\n      context: .\/php-fpm\n      args:\n          - PHP_VERSION=${PHP_VERSION}\n          - XDEBUG_PORT=${XDEBUG_PORT}\n    depends_on:\n      - db\n    environment:\n      - XDEBUG_CONFIG=client_port=${XDEBUG_PORT}\n    volumes:\n      - ..\/src:\/var\/www\n      - .\/logs:\/var\/logs\n      - .\/php-fpm\/xdebug.ini:\/usr\/local\/etc\/php\/conf.d\/xdebug.ini\n    networks:\n      - iKnowNW      \n\n  nginx:\n    build: \n      context: .\/nginx\n    volumes:\n      - ..\/src:\/var\/www\n      - .\/nginx\/nginx.conf:\/etc\/nginx\/nginx.conf\n      - .\/nginx\/conf.d\/:\/etc\/nginx\/conf.d\n      - .\/nginx\/sites\/:\/etc\/nginx\/sites-available\n      - .\/logs:\/var\/log\n    depends_on:\n      - php-fpm\n    ports:\n      - 8081:80\n    networks:\n      - iKnowNW        \n\nnetworks:\n  iKnowNW:\n      driver: bridge<\/code><\/pre>\n\n\n\n
PHP-FPM<\/h2>\n\n\n\n
So the main things are within the php-fpm confirguration above <\/p>\n\n\n\n
args:
– PHP_VERSION=${PHP_VERSION})<\/p>\n\n\n\n
environment:
– XDEBUG_CONFIG=client_port=${XDEBUG_PORT}<\/p>\n\n\n\n
Both of these are import, because they will pass details (arguments \/ enviornment variables) to the php-fpm DockerFile build process, so lets start with that — below is the php-fpm Dockerfile<\/p>\n\n\n\n
\nARG PHP_VERSION\nARG XDEBUG_PORT \n\nFROM php:${PHP_VERSION}-fpm-alpine\n\nRUN apk --update --no-cache add git postgresql-dev\nRUN apk add --no-cache $PHPIZE_DEPS\nRUN pecl install xdebug \nRUN docker-php-ext-install pdo pdo_pgsql \nRUN docker-php-ext-enable xdebug\n\nWORKDIR \/var\/www\nEXPOSE ${XDEBUG_PORT}\n<\/code><\/pre>\n\n\n\n
So the ARG variable is what was passed in from the docker-composer file within this instance it would be 8.0 denoting the php version to use.  Also with exposing the xdebug port to the outside world of the container.<\/p>\n\n\n\n
Additional xdebug settings are included in the xdebug.ini file below, this will be “copied” into the container during the build process.<\/p>\n\n\n\n
xdebug.start_with_request=yes\nxdebug.mode=debug\nxdebug.log=\/var\/logs\/xdebug\/xdebug.log\nxdebug.discover_client_host=1<\/code><\/pre>\n\n\n\n
Nginx<\/h2>\n\n\n\n
This one is the biggest folder, as the following steps will take place<\/p>\n\n\n\n