info Usage: docker info [OPTIONS] Display system-wide information --help Print usage For example: $ docker -D info Containers: 14 Running: 3 Paused: 1 Stopped: 10 Images: 52 Server Version: 1.9.0 Storage Driver: aufs Root Dir: /var/lib/docker/aufs Backing Filesystem: extfs Dirs: 545 Dirperm1 Supported: true Execution Driver: native-0.2 Logging Driver: json-file Cgroup Driver: cgroupfs Plugins: Volume: local Network: bridge null host Kernel Version: 3.19.0-22-generic O

history Usage: docker history [OPTIONS] IMAGE Show the history of an image -H, --human=true Print sizes and dates in human readable format --help Print usage --no-trunc Don't truncate output -q, --quiet Only show numeric IDs To see how the docker:latest image was built: $ docker history docker IMAGE CREATED CREATED BY SIZE COMMENT 3e23a5875458 8 days ago

images Usage: docker images [OPTIONS] [REPOSITORY[:TAG]] List images -a, --all Show all images (default hides intermediate images) --digests Show digests -f, --filter=[] Filter output based on conditions provided --help Print usage --no-trunc Don't truncate output -q, --quiet Only show numeric IDs The default docker images will show all top level images, their repository and tags, and their size. Docker images have inter

Glossary A list of terms used around the Docker project. aufs aufs (advanced multi layered unification filesystem) is a Linux filesystem that Docker supports as a storage backend. It implements the union mount for Linux file systems. Base image An image that has no parent is a base image. boot2docker boot2docker is a lightweight Linux distribution made specifically to run Docker containers. The boot2docker management tool for Mac and Windows was deprecated and replaced by docker-machine which y

export Usage: docker export [OPTIONS] CONTAINER Export the contents of a container's filesystem as a tar archive --help Print usage -o, --output="" Write to a file, instead of STDOUT The docker export command does not export the contents of volumes associated with the container. If a volume is mounted on top of an existing directory in the container, docker export will export the contents of the underlying directory, not the contents of the volume. Refer to Backup, restore

exec Usage: docker exec [OPTIONS] CONTAINER COMMAND [ARG...] Run a command in a running container -d, --detach Detached mode: run command in the background --detach-keys Specify the escape key sequence used to detach a container --help Print usage -i, --interactive Keep STDIN open even if not attached --privileged Give extended Linux capabilities to the command -t, --tty Allocate a pseudo-TTY

events Usage: docker events [OPTIONS] Get real time events from the server -f, --filter=[] Filter output based on conditions provided --help Print usage --since="" Show all events created since timestamp --until="" Stream events until this timestamp Docker containers report the following events: attach, commit, copy, create, destroy, die, exec_create, exec_start, export, kill, oom, pause, rename, resize, restart, start, stop, top, unpause, update Docke

diff Usage: docker diff [OPTIONS] CONTAINER Inspect changes on a container's filesystem --help Print usage List the changed files and directories in a container᾿s filesystem There are 3 events that are listed in the diff: A - Add D - Delete C - Change For example: $ docker diff 7bb0e258aefe C /dev A /dev/kmsg C /etc A /etc/mtab A /go A /go/src A /go/src/github.com A /go/src/github.com/docker A /go/src/github.com/docker/docker A /go/src/github.com/docker/docker/.git ....

daemon Usage: docker daemon [OPTIONS] A self-sufficient runtime for linux containers. Options: --api-cors-header="" Set CORS headers in the remote API --authorization-plugin=[] Set authorization plugins to load -b, --bridge="" Attach containers to a network bridge --bip="" Specify network bridge IP --cgroup-parent= Set parent cgroup for all containers --cluster-store=""

create Creates a new container. Usage: docker create [OPTIONS] IMAGE [COMMAND] [ARG...] Create a new container -a, --attach=[] Attach to STDIN, STDOUT or STDERR --add-host=[] Add a custom host-to-IP mapping (host:ip) --blkio-weight=0 Block IO weight (relative weight) --blkio-weight-device=[] Block IO weight (relative device weight, format: `DEVICE_NAME:WEIGHT`) --cpu-shares=0 CPU shares (relative weight) --cap-add=[]