github.com/pwn-term/docker@v0.0.0-20210616085119-6e977cce2565/cli/man/src/container/port.md (about)

     1  List port mappings for the CONTAINER, or lookup the public-facing port that is NAT-ed to the PRIVATE_PORT
     2  
     3  # EXAMPLES
     4  
     5      $ docker ps
     6      CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS                                            NAMES
     7      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
     8  
     9  ## Find out all the ports mapped
    10  
    11      $ docker container port test
    12      7890/tcp -> 0.0.0.0:4321
    13      9876/tcp -> 0.0.0.0:1234
    14  
    15  ## Find out a specific mapping
    16  
    17      $ docker container port test 7890/tcp
    18      0.0.0.0:4321
    19  
    20      $ docker container port test 7890
    21      0.0.0.0:4321
    22  
    23  ## An example showing error for non-existent mapping
    24  
    25      $ docker container port test 7890/udp
    26      2014/06/24 11:53:36 Error: No public port '7890/udp' published for test