Docker

• Create image from docker file:
  docker build -t docker-postgres . -f ./Dockerfile
• Create container from image:
  docker create -t docker-postgres
• Start container:
  docker start jovial_easley
• Get inside container:
  docker exec -it jovial_easley bash
• MySql container:

docker run --name mysql \
  -ti -d -e MYSQL_DATABASE=name \
  -e MYSQL_USER=user -e MYSQL_ROOT_HOST=0.0.0.0 \
  -e MYSQL_PASSWORD=pwd -e MYSQL_ROOT_PASSWORD=root -p 3306:3306 \
  -v /tmp/mysql:/var/lib/mysql mysql --character-set-server=utf8mb4 \
  --collation-server=utf8mb4_0900_as_cs

• Go inside MySql container:
  docker exec -it mysql mysql -u <user> -p<pwd> <db>
• Starts all stopped containers:
  docker ps -aq -f status=exited | xargs docker start
• Stores last started container’id:
  export ID=$(docker ps -lq)
• Show you how much disk space you’re using and how much can be potentially reclaimed:
  docker system df
• Remove all stopped containers, networks not used, dangling images, build cache and images that are no longer referenced:
  docker system prune -a
• Deletes all volumes with a specific name:
  docker volume ls -f name=runner --format "" | xargs docker volume rm
• Deletes all containers exited:
  docker ps -aq -f status=exited | xargs -r docker rm
• Check the resource usage of containers running:
  docker stats
• Find the volumne of a container:
  docker inspect -f "" <container>
• See what processes are running inside a container:
  docker top <container>
• To see how a container’s file system has changed since it was created:
  docker diff <container>
• To copy file to container:
  docker cp <file_path> <container:/dir_path>
• To copy file from container:
  docker cp <container:/file_path> <dir_path>
• Clean up docker datas:

docker image prune -q -f dangling=true | xargs docker rmi
docker ps -a -q | xargs docker rm
docker network prune
docker volume ls -q -f dangling=true | xargs docker volume rm
# Hard core
docker system prune -f

• Run localstack:

docker run -ti -d --name localstack \
  -v /home/localstack:/tmp/localstack \
  -p 8080:8080 -p 4567-4584:4567-4584 \
  -e aws_default_region=eu-west-1 \
  -e port_web_ui=8080 localstack/localstack

• Go inside a volume:

docker run -it \
  -v=postgres-data:/var/lib/docker/volumes/<volume_id>/_data busybox \
  /bin/sh

• Push a image to the docker registry:

docker login -u "docker-id" -p "mypassword" docker.io
docker tag my-container docker-id/image-name:tag
docker push docker-id/image-name:tag