This is a Dockerfile to build a container image for nginx and php-fpm, with the ability to pull website code from git. The container also has the ability to update templated files with vaiables passed to docker in order to update your settings.
The source files for this project can be found here: https://github.com/ngineered/nginx-php-fpm
If you have any improvements please submit a pull request.
Docker hub repository
The Docker hub build can be found here: https://registry.hub.docker.com/u/richarvey/nginx-php-fpm/
Building from source
To build from source you need to clone the git repo and run docker build:
git clone https://github.com/ngineered/nginx-php-fpm.git docker build -t nginx-php-fpm:latest .
Pulling from Docker Hub
Pull the image from docker hub rather than downloading the git repo. This prevents you having to build the image on every docker host:
docker pull richarvey/nginx-php-fpm:latest
To simply run the container:
sudo docker run -d richarvey/nginx-php-fpm
You can then browse to
http://<DOCKER_HOST>:8080 to view the default install files. To find your
DOCKER_HOST use the
docker inspect to get the IP address.
If you want to link to your web site directory on the docker host to the container run:
sudo docker run -d -v /your_code_directory:/var/www/html richarvey/nginx-php-fpm
Dynamically Pulling code from git
One of the nice features of this container is its ability to pull code from a git repository with a couple of environmental variables passed at run time.
Note: You need to have your SSH key that you use with git to enable the deployment. I recommend using a special deploy key per project to minimise the risk.
Preparing your SSH key
The container expects you pass it the SSH_KEY variable with a base64 encoded private key. First generate your key and then make sure to add it to github and give it write permissions if you want to be able to push code back out the container. Then run:
base64 -w 0 /path_to_your_key
Note: Copy the output be careful not to copy your prompt
To run the container and pull code simply specify the GIT_REPO URL including git@ and then make sure you have also supplied your base64 version of your ssh deploy key:
sudo docker run -d -e 'GIT_REPOemail@example.com:ngineered/ngineered-website.git' -e 'SSH_KEY=BIG_LONG_BASE64_STRING_GOES_IN_HERE' richarvey/nginx-php-fpm
To pull a repository and specify a branch add the GIT_BRANCH environment variable:
sudo docker run -d -e 'GIT_REPOfirstname.lastname@example.org:ngineered/ngineered-website.git' -e 'GIT_BRANCH=stage' -e 'SSH_KEY=BIG_LONG_BASE64_STRING_GOES_IN_HERE' richarvey/nginx-php-fpm
Enabling SSL or Special Nginx Configs
You can either map a local folder containing your configs to /etc/nginx or we recommend editing the files within conf directory that are in the git repo, and then rebuilding the base image.
Special Git Features
You'll need some extra ENV vars to enable this feature. These are
GIT_NAME. This allows git to be set up correctly and allow the following commands to work.
Push code to Git
To push code changes made within the container back to git simply run:
sudo docker exec -t -i <CONTAINER_NAME> /usr/bin/push
Pull code from Git (Refresh)
In order to refresh the code in a container and pull newer code form git simply run:
sudo docker exec -t -i <CONTAINER_NAME> /usr/bin/pull
NOTE: You now need to enable templates see below
This container will automatically configure your web application if you template your code.
Using environment variables
For example if you are using a MySQL server, and you have a config.php file where you need to set the MySQL details include $$_MYSQLHOST$$ style template tags.
<?php database_host = $$_MYSQL_HOST_$$; database_user = $$_MYSQL_USER_$$; database_pass = $$_MYSQL_PASS_$$ ... ?>
To set the variables simply pass them in as environmental variables on the docker command line.
sudo docker run -d -e 'GIT_REPOemail@example.com:ngineered/ngineered-website.git' -e 'SSH_KEY=base64_key' -e 'TEMPLATE_NGINX_HTML=1' -e 'GIT_BRANCH=stage' -e 'MYSQL_HOST=host.x.y.z' -e 'MYSQL_USER=username' -e 'MYSQL_PASS=supper_secure_password' richarvey/nginx-php-fpm
This will expose the following variables that can be used to template your code.
MYSQL_HOST=host.x.y.z MYSQL_USER=username MYSQL_PASS=password
In order to speed up boot time templating is now disabled by default, if you wish to enable it simply include the flag below:
Yes ANYTHING, any variable exposed by the -e flag lets you template your configuration files. This means you can add redis, mariaDB, memcache or anything you want to your application very easily.
Logging and Errors
All logs should now print out in stdout/stderr and are available via the docker logs command:
docker logs <CONTAINER_NAME>
You can set your webroot in the container to anything you want using the -e "WEBROOT=/var/www/html/public" variable.
If you want to display PHP errors on screen (in the browser) for debugging purposes use this feature: