Tags | kubernetes docker |
Hard Prerequisites | |
IMPORTANT: Please review these prerequisites, they include important information that will help you with this content. | |
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Soft Prerequisites |
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To setup Docker and Docker Compose on your EC2 instance, run the following commands:
# updates the packages index
sudo apt update
# installs necessary dependencies
sudo apt install apt-transport-https ca-certificates curl software-properties-common -y
# configures the Docker apt repository
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu focal stable" -y
# installs docker
sudo apt install docker-ce -y
# check docker status
sudo systemctl status docker
# installs docker compose
sudo curl -L "https://github.com/docker/compose/releases/download/1.29.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose
# checks the docker compose installation
docker-compose --version
# allows the `ubuntu` user to run Docker commands
# so we don't need to use `sudo` all the time!
sudo gpasswd -a ubuntu docker
# let's log out from the session and then SSH again into the server
# to refresh the user's permissions
logout
ssh -i <key-file> ubuntu@<your-domain>
Some useful commands to use with Docker:
# lists containers
docker ps
# gets a container logs
docker logs -f <container>
# connects to the container (like SSH, but not really!)
docker exec -it <container> sh