Docker

• Build an image

docker build -t <image_name>:<tag> .

docker build -t <image_name>:<tag> -f <dockerfile_path> .

docker build -t <image_name>:<tag1> -t <image_name>:<tag2> -f <dockerfile_path> .

• Create a new tag for a remote registry

docker tag <image_name>:<tag> <registry_url>/<repository>/<image_name>:<tag>

• Push an image to a remote registry

docker push <registry_url>/<repository>/<image_name>:<tag>

• Run a container

docker run -d -p <host_port>:<container_port> <image_name>

• Run a command inside a container

docker exec -it <container_name> <command>

• Login to the registry

docker login -u <username>

• Stop all containers

docker stop $(docker ps -a -q)

• Remove all images

docker rmi $(docker images -a -q)

• Limiting resources

docker run -d --name <container_name> \
--memory <value> \
--memory-swap <value> \
--cpu-shares <value> \
<image_name>

Example:

docker run -d --name toolbox \
--memory 200m \
--memory-swap 1G \
--cpu-shares 1024 \
cloudcakelabs/toolbox:0.1.0