Docker

**************************************************************  DOCKER  *****************************************************************

 

INSTALLATION:

 

# sudo apt-get remove docker docker-engine docker.io containerd runc // remove old versions

# sudo apt update // update repositories

# sudo apt install apt-transport-https ca-certificates curl gnupg lsb-release // packages that allow apt to use repos over HTTPS

 

# curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg // add GPG key (Docker)

 

 

********************************************  Adding repository and images ***************************

 

echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

// adding Docker repository for ubuntu to apt list

 

# echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/debian $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

// adding Docker repository for debian to apt list

 

# sudo rm /etc/apt/sources.list.d/docker.list // removing wrong repository

 

# sudo apt update

# sudo apt install docker-ce docker-ce-cli containerd.io // install more packages

# sudo docker run hello-world // run test if docker is configured correctly

 

# docker images // list local images

# docker search <package_name> // look for specific package in Docker Hub

 

********************************************  Managing containers  *************************

 

# docker ps // list running containers

# docker ps -a // list all containers

 

# docker start <container_name_or_ID> // starts container

# docker stop <container_name_or_ID> // gracefully stops container

# docker restart <container_name_or_ID> // restarts container

 

# docker inspect <container_name_or_ID> // detailed JSON output about a container’s configuration and state

# docker rm <container_name_or_ID> // removes container, use -f to force

 

# docker exec -it <container_name_or_ID> bash // opens an interactive shell inside specified container

 

 

********************************************  Client / Host operations  *************************

 

# docker cp [OPTIONS] <source_path> <destination_path> // copying files between container and host

# docker cp my_container:/app/config.yaml /home/user/config.yaml // example container -> host

# docker cp /home/user/new_script.sh my_container:/app/scripts/ // exmaple host -> container

 

# docker attach <container_name_or_ID> // attach your terminal to the container’s standard input, output, and error streams