🐳Docker

What's Docker ?

Docker is a versatile and powerful platform that simplifies and streamlines the process of building, packaging, and deploying applications. It is based on containerization technology, which allows developers to package an application and all its dependencies into a single, self-contained unit called a container. These containers are highly portable and can run consistently across different environments, such as development, testing, and production, without any compatibility issues. Docker provides a standardized way to develop, ship, and run applications, making it an essential tool for modern software development. It offers benefits like isolation, scalability, and ease of deployment, making it a key component in the world of containerized applications.

Installation of Docker engine here.

Managing Docker

Commands	Description
docker --version	Check Docker version
docker info	Display system-wide information about Docker
docker login	Log in to a Docker registry
docker logout	Log out from a Docker registry
docker system df	Show Docker disk usage
docker system prune	Remove all unused data (images, containers, etc.)
docker pull	Pull a Docker image from a registry
docker push	Push a Docker image to a registry

Managing Images

Commands	Description
docker images	List locally available Docker images
docker rmi	Remove a Docker image
docker search	Search for a Docker image on Docker Hub
docker build -t	Build a Docker image from a Dockerfile
docker history	Show the history of an image
docker image prune	Remove all dangling images
docker image ls	List Docker images

Managing Containers

Commands	Description
docker ps	List running containers
docker ps -a	List all containers, including stopped ones
docker create	Create a new container from an image
docker run	Create and start a new container from an image
docker run -d	Create and start a container in detached mode
docker stop	Stop a running container
docker start	Start a stopped container
docker restart	Restart a container
docker rm	Remove a container
docker exec -it	Execute a command in a running container
docker logs	View the logs of a container
docker stats	Display a live stream of container resource usage
docker attach	Attach to a running container's STDIN, STDOUT, and STDERR

Docker Containers

Managing Containers

Commands	Description
docker top	Display the running processes of a container
docker inspect	View detailed information about a container
docker rename	Rename a container
docker update	Update the configuration of a container
docker diff	Inspect changes to files or directories in a container
docker wait	Block until a container stops, then print its exit code
docker export	Export a container's file system as a tar archive
docker cp :	Copy files/folders between a container and host

Container Networking

Commands	Description
docker network ls	List Docker networks
docker network create	Create a Docker network
docker network inspect	View detailed information about a network
docker network connect	Connect a container to a network
docker network disconnect	Disconnect a container from a network

Container Health

Commands	Description
docker container stats	Display a live stream of container resource usage
docker container stats	Display resource usage of a specific container

Docker Images

Managing Images

Commands	Description
docker save	Save a Docker image to a tar archive file
docker load -i <image.tar>	Load a Docker image from a tar archive file
docker image prune	Remove all dangling images
docker image ls	List Docker images
docker image history	Show the history of an image
docker image build -t	Build a Docker image from a Dockerfile

Building Images

Commands	Description
docker commit	Create a new image from a container
docker build -t	Build a Docker image from a Dockerfile
docker build -t - < Dockerfile	Build an image from a Dockerfile from stdin

Image Tagging and Publishing

Commands	Description
docker tag	Create a tag for an image
docker push	Push an image to a registry
docker image inspect	View detailed information about an image

Docker Compose

Managing Compose

Commands	Description
docker-compose up	Start services defined in a docker-compose.yml
docker-compose up -d	Start services in detached mode
docker-compose down	Stop and remove services defined in docker-compose.yml
docker-compose logs	View container logs for services in a compose file
docker-compose ps	List containers of services in a compose file

Docker Swarm

Commands	Description
docker swarm init	Initialize a Docker Swarm mode
docker swarm join-token	Display the join token for adding nodes to a swarm
docker node ls	List nodes in a swarm
docker service ls	List services in a swarm
docker service create	Create a new service in a swarm
docker stack deploy	Deploy a new stack in a swarm