My Most Used Docker Commands

gistfile1.txt

# build docker config
docker build -t [name:tag] .

# inspecting containers
docker inspect [container-id]

# create an image from a container
docker commit -a [author] -m [message] [container-id] [name:tag]

# compare docker container with image
docker diff [container-id]

# run and delete the container after it exits
docker run --rm -ti [image] /bin/bash

# delete all the containers on Docker host
docker rm $(docker ps -aq)
# delete all images on Docker host
docker rmi `docker images -q`

# delete untagged images
docker rmi `docker images -q -f "dangling=true"`

# attaching to existing docker container
docker exec -ti [container-id] /bin/bash

# another way of attaching using `nsenter` or Namespace Enter
PID=$(docker inspect --format \ [container-id])
nsenter --target $PID --mount --uts --ipc --net --pid

# getting logs from container namespace
docker logs [container-id]

# getting returned status
echo $?