docker container port

Estimated reading time: 3 minutes

Description

List port mappings or a specific mapping for the container

Usage

docker container port CONTAINER [PRIVATE_PORT[/PROTO]]

Parent command

Command Description
docker container Manage containers
Command Description
docker container attach Attach to a running container
docker container commit Create a new image from a container’s changes
docker container cp Copy files/folders between a container and the local filesystem
docker container create Create a new container
docker container diff Inspect changes to files or directories on a container’s filesystem
docker container exec Run a command in a running container
docker container export Export a container’s filesystem as a tar archive
docker container inspect Display detailed information on one or more containers
docker container kill Kill one or more running containers
docker container logs Fetch the logs of a container
docker container ls List containers
docker container pause Pause all processes within one or more containers
docker container port List port mappings or a specific mapping for the container
docker container prune Remove all stopped containers
docker container rename Rename a container
docker container restart Restart one or more containers
docker container rm Remove one or more containers
docker container run Run a command in a new container
docker container start Start one or more stopped containers
docker container stats Display a live stream of container(s) resource usage statistics
docker container stop Stop one or more running containers
docker container top Display the running processes of a container
docker container unpause Unpause all processes within one or more containers
docker container update Update configuration of one or more containers
docker container wait Block until one or more containers stop, then print their exit codes

Extended description

List port mappings for the CONTAINER, or lookup the public-facing port that is NAT-ed to the PRIVATE_PORT

EXAMPLES

# docker ps
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS                                            NAMES
b650456536c7        busybox:latest      top                 54 minutes ago      Up 54 minutes       0.0.0.0:1234->9876/tcp, 0.0.0.0:4321->7890/tcp   test

Find out all the ports mapped

# docker container port test
7890/tcp -> 0.0.0.0:4321
9876/tcp -> 0.0.0.0:1234

Find out a specific mapping

# docker container port test 7890/tcp
0.0.0.0:4321

# docker container port test 7890
0.0.0.0:4321

An example showing error for non-existent mapping

# docker container port test 7890/udp
2014/06/24 11:53:36 Error: No public port '7890/udp' published for test

Examples

$ docker ps

CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS                                            NAMES
b650456536c7        busybox:latest      top                 54 minutes ago      Up 54 minutes       0.0.0.0:1234->9876/tcp, 0.0.0.0:4321->7890/tcp   test

Find out all the ports mapped

$ docker container port test

7890/tcp -> 0.0.0.0:4321
9876/tcp -> 0.0.0.0:1234

Find out a specific mapping

$ docker container port test 7890/tcp

0.0.0.0:4321

$ docker container port test 7890

0.0.0.0:4321

An example showing error for non-existent mapping

$ docker container port test 7890/udp

2014/06/24 11:53:36 Error: No public port '7890/udp' published for test
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