docker notes

















// WSL for ubuntu 20




apt install docker.io

sudo visudo

Add the following line to the bottom

# Docker daemon specification
root ALL=(ALL) NOPASSWD: /usr/bin/dockerd

Notes: Please replace sungkim with your username.






you can just add the following at end of .bashrc file.

nano ~/.bashrc

then add the following to end of the file.

# Start Docker daemon automatically when logging in if not running.
RUNNING=`ps aux | grep dockerd | grep -v grep`
if [ -z "$RUNNING" ]; then
sudo dockerd > /dev/null 2>&1 &
disown
fi







// done
docker run hello-world







// download the system
docker pull centos


// run system
docker run -d -t --name yatao centos


// check the image(system)
docker ps



// I am in a container
docker exec -it yatao bash


// quit system
exit







docker pull alpine


docker run -t -d --name ohyeah alpine



docker ps


// I am in the system
docker exec -it ohyeah sh












// buit a website
docker pull thenetworkchuck/nccoffee:frenchpress

docker run -t -d -p 80:80 --name nccoffee thenetworkchuck/nccoffee:frenchpress

// if you could see a website, done









// check myip
curl -s checkip.dyndns.org | sed -e 's/.*Current IP Address: //' -e 's/<.*$//'









// stop a progress
docker stop ohyeah



// start a progress
docker start ohyeah


// check CPU usage
docker stats












// download a new program
docker pull archlinux


docker run -d -t --name arch archlinux

docker ps



https://www.youtube.com/watch?v=eGz9DS-aIeY













docker run -d --name container-name


# i stop computer, so docker stop



repeat run this get an error
docker run -d --name container-name
# The container name "xxx" is already in use by container...



# run this could start agint:
docker start container-name



# list stoped container
docker container ls -a