DOCKER_CHEATSHEET.md

Local Containers

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Create Docker image using -t so it has a friendly name.

docker build -t sid_apache_php_7.3 apache/php/7.3 docker build -t sid_apache_php_7.2 apache/php/7.2 docker build -t sid_apache_php_7.1 apache/php/7.1 docker build -t sid_apache_php_7.0 apache/php/7.0 docker build -t sid_apache_fpm_7.3 apache/php-fpm/7.3 docker build -t sid_apache_fpm_7.2 apache/php-fpm/7.2 docker build -t sid_apache_fpm_7.1 apache/php-fpm/7.1 docker build -t sid_apache_fpm_7.0 apache/php-fpm/7.0 docker build -t sid_nginx_fpm_7.3 nginx/php-fpm/7.3 docker build -t sid_nginx_fpm_7.2 nginx/php-fpm/7.2 docker build -t sid_nginx_fpm_7.1 nginx/php-fpm/7.1 docker build -t sid_nginx_fpm_7.0 nginx/php-fpm/7.0

Check where the image is built.

docker image ls

Run the app, mapping your machine’s port 4000 to the container’s port 80.

docker run -p 80:80 sid_apache_php_7.3 docker run -p 80:80 sid_apache_php_7.2 docker run -p 80:80 sid_apache_php_7.1 docker run -p 80:80 sid_apache_php_7.0 docker run -p 80:80 sid_apache_fpm_7.3 docker run -p 80:80 sid_apache_fpm_7.2 docker run -p 80:80 sid_apache_fpm_7.1 docker run -p 80:80 sid_apache_fpm_7.0 docker run -p 80:80 sid_nginx_fpm_7.3 docker run -p 80:80 sid_nginx_fpm_7.2 docker run -p 80:80 sid_nginx_fpm_7.1 docker run -p 80:80 sid_nginx_fpm_7.0

Run the app in detached mode.

docker run -d -p 80:80 sid_apache_php_7.3 docker run -d -p 80:80 sid_apache_php_7.2 docker run -d -p 80:80 sid_apache_php_7.1 docker run -d -p 80:80 sid_apache_php_7.0 docker run -d -p 80:80 sid_apache_fpm_7.3 docker run -d -p 80:80 sid_apache_fpm_7.2 docker run -d -p 80:80 sid_apache_fpm_7.1 docker run -d -p 80:80 sid_apache_fpm_7.0 docker run -d -p 80:80 sid_nginx_fpm_7.3 docker run -d -p 80:80 sid_nginx_fpm_7.2 docker run -d -p 80:80 sid_nginx_fpm_7.1 docker run -d -p 80:80 sid_nginx_fpm_7.0

Stop the container process.

docker image ls docker container stop CONTAINER_ID

Publishing Images/Containers

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Login to Docker.

docker login

Tag the image (docker tag image_name username/repository:tag).

docker tag sid_apache_php_7.2 justinhartman/cakephp3.5-php7-mysql-apache2:latest docker tag sid_apache_php_7.2 justinhartman/cakephp3.5-php7-mysql-apache2:apache-7.2 docker tag sid_apache_php_7.2 justinhartman/cakephp3.5-php7-mysql-apache2:apache-php-7.2 docker tag sid_apache_php_7.0 justinhartman/cakephp3.5-php7-mysql-apache2:apache-7.0 docker tag sid_apache_php_7.0 justinhartman/cakephp3.5-php7-mysql-apache2:apache-php-7.0 docker tag sid_nginx_fpm_7.2 justinhartman/cakephp3.5-php7-mysql-apache2:nginx-7.2 docker tag sid_nginx_fpm_7.2 justinhartman/cakephp3.5-php7-mysql-apache2:nginx-php-7.2 docker tag sid_nginx_fpm_7.0 justinhartman/cakephp3.5-php7-mysql-apache2:nginx-7.0 docker tag sid_nginx_fpm_7.0 justinhartman/cakephp3.5-php7-mysql-apache2:nginx-php-7.0

See list of tagged images.

docker image ls

Publish and Upload your tagged image to the repository.

docker push justinhartman/cakephp3.5-php7-mysql-apache2:latest docker push justinhartman/cakephp3.5-php7-mysql-apache2:apache-7.2 docker push justinhartman/cakephp3.5-php7-mysql-apache2:apache-php-7.2 docker push justinhartman/cakephp3.5-php7-mysql-apache2:apache-7.0 docker push justinhartman/cakephp3.5-php7-mysql-apache2:apache-php-7.0 docker push justinhartman/cakephp3.5-php7-mysql-apache2:nginx-7.2 docker push justinhartman/cakephp3.5-php7-mysql-apache2:nginx-php-7.2 docker push justinhartman/cakephp3.5-php7-mysql-apache2:nginx-7.0 docker push justinhartman/cakephp3.5-php7-mysql-apache2:nginx-php-7.0

Pull and run the image from the remote repository.

docker run -p 80:80 justinhartman/cakephp3.5-php7-mysql-apache2:latest

Running Services

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Give app a name

docker stack deploy -c docker-compose.yml getstartedlab

Get the service ID for the application

docker service ls

List the tasks for your service:

docker service ps getstartedlab_web

Deploy and redeploy (run when having made changes or go live).

docker stack deploy -c docker-compose.yml getstartedlab

Take the app down

docker stack rm getstartedlab

Take down the swarm

docker swarm leave --force

Cheatsheet

docker stack ls # List stacks or apps docker stack deploy -c # Run the specified Compose file docker service ls # List running services associated with an app docker service ps # List tasks associated with an app docker inspect # Inspect task or container docker container ls -q # List container IDs docker stack rm # Tear down an application docker swarm leave --force # Take down a single node swarm from the manager

Docker Compose

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Build the app from docker-compose.yml.

docker-compose up

Run in daemon mode.

docker-compose up -d

Stope the daemon.

docker-compose stop

Remove containers, bring everything down and remove volumes

docker-compose down --volumes

Specify an alternate compose file.

docker-compose up -f docker-compose.debug.yml

Use -p to specify a project name

docker-compose up -p sid_apache_php_7.3

Pull a specific build item from the file

docker-compose -f php/apache/7.2/docker-compose.yml pull db

Swarm Clusters

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Enable Swarm mode.

docker swarm init

Join Swarm as workers.

docker swarm join

Create a couple VMs.

docker-machine create --driver virtualbox myvm1 docker-machine create --driver virtualbox myvm2

List VMs and get IP addresses.

docker-machine ls

Initialise Swarm and add Nodes. Instruct myvm1 to become a swarm manager.

docker-machine ssh myvm1 "docker swarm init --advertise-addr "

Join workers to the Swarm. Have myvm2 join the swarm as a worker.

docker-machine ssh myvm2 "docker swarm join --token :2377"

Run docker node ls on the manager to view the nodes in this swarm.

docker-machine ssh myvm1 "docker node ls"