Docker(도커)-images

Docker following Docker Deep Dive

image naming and pulling

• pull

docker image pull <repository>:<tag>
# if pulling from third-party registries
# docker image pull <dns name>/<repo>:<tag>
# the tag `latest` may not refer to the latest version of the repository
# because the repository may use a different tag name for the latest version or use `latest` to an older version.
# pull all images of repository
docker image pull -a

• inspect

# A Docker image is just a bunch of loosely-connected read-only layers
# to inpsect layers comprising of an image
docket image inspect ubuntu:latest

• delete images

before delete, make sure to delete associated containers

# if the container is in use, need to stop first before delete
docker container stop <name>

# delete 
docker image rm  <repository>:<tag>
# or 
docker image rm  <image_id>

# delete all images
docker image rm $(docker image ls -q) -f