Install docker
apt install docker.io
Uninstall docker
apt-get remove docker docker-engine docker.io
Export container to TAR file
docker export containerNameOrID > /home/user/my_file_name_$(date +%d-%m-%Y_%H-%M-%S).tar
Import container from TAR file
docker import /home/user/my_file_name.tar
docker import /home/user/my_file_name.tar RepoName:TagName
docker pull imageName
docker pull imageName:latest
docker pull imageName:1.2.3
Follow container logs
docker logs -f --since 1m containerNameOrID
docker logs --since 2020-11-14T08:00:00 --until 2020-11-14T11:00:00 containerNameOrID
Go inside the container
docker exec -it containerNameOrID /bin/bash
or
docker exec -it containerNameOrID /bin/sh
See images in local PC
docker images
List runnning containers
docker ps
List all containers
docker container ls --all
Start a container
docker start containerNameOrID
Stop a container
docker stop containerNameOrID
Remove container
docker container rm containerNameOrID
Build an image
docker build . -t myImageName
Delete an image by force
docker image rm --force myImageNameOrID
Inspect the layers of an image
docker history --human --format "{{.CreatedBy}}: {{.Size}}" myImageNameOrID
Run an image in a container in detached mode
docker run -p LocalPort:InternalPort -d myImageNameOrID
Run an image in a container in detached mode in the host network
docker run -p LocalPort:InternalPort -d myImageNameOrID --network host
Run an image in a named container and accessing the instance from the host without the container's IP
docker run -d --name newContainerName -e url=http://localhost:externalAppPort -p externalAppPort:internalAppPort imageName
Example:
docker run -d --name some-ghost -e url=http://localhost:3001 -p 3001:2368 ghost
Containers location
/var/lib/docker/containers
Follow logs
docker logs -f ContainerNameOrID --since "1m" | egrep '(String1|String2)'
Kill all containers
sudo docker kill $(sudo docker ps -q --all)
Stop all containers
sudo docker stop $(sudo docker ps -q --all)
Remove all containers
sudo docker rm $(sudo docker ps -q --all)
Execute command inside container (check Node.JS version inside container)
docker exec myContainerID node --version
Install Docker Compose
sudo curl -L "https://github.com/docker/compose/releases/download/1.29.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose
# Optional, just in case of failure after installation you should do:
sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose
# Test with:
docker-compose --version
# https://docs.docker.com/compose/install/#alternative-install-options
