Basic Docker usage and command

Links

Download the git from: https://www.docker.com/

Commands

- Get image


docker pull <images_name>

- Build


docker build -t <tag_name> .
docker build -t docker-example .

- Run

Care hostPort:containerPort => map_to_target_port:my_current_port

<Port-to-outside>:<Inside-port>

For example, you got a express.js port to 8080, and you want your user to access with http://xx.xx.xx.xx:32145, you have to set:

32145:8080


docker run -d -it -p 8080:8080 <tag_name>
docker run -d -it --restart=always -p 8080:8080 docker-example

-d : --detach Run in background.
-it : --interactive + --tty Make your container get your stdin and get nice formatted output from container.
-p: --port Using which pair of ports.
--restart=always: Always restart on exit.

- Docker Compose


docker-compose up
 
# pull the images that the `docker-compose` will use
docker-compose pull
 
# Run in background
docker-compose up -d
 
docker-compose stop
docker-compose rm -rf <name> # Delete

- List container


docker ps
docker ps -a # With hidden / stopped container
 
# Stop container
docker stop <CONTAINER_ID / IMAGE_NAME> 
 
# Remove container
docker rm <CONTAINER_ID / IMAGE_NAME> 
 
docker logs <CONTAINER_ID / IMAGE_NAME> 
docker logs 841851bc7e31

- List images


# ls images
docker images
 
# Remove container
docker image rm <IMAGE_NAME>

- Go inside the images


docker exec -it <CONTAINER_ID / IMAGE_NAME> bash

- Volumes


# Vol mount
docker -v <Your_path>:<docker_internal_path> 
 
# e.g. Mount in linus
docker -v /var/run/docker.sock:/var/run/docker.sock 
 
# e.g. Mount Local Folder In windows
docker -v C:/myFolder/data:/data 
 
# e.g. Mount Local Folder In linus
docker -v ./data:/data