We will help you to understand how to get list of ports in docker container. For this, we use “docker port” command.
“docker port” command lists exposed ports in docker container.
Command:
docker port container_name_1
How docker port command works ?
- docker port command query to docker engine to give list of exposed ports in given docker container.
Example:
% docker ps
| CONTAINER ID | IMAGE | COMMAND | CREATED | STATUS | PORTS | NAMES |
| fa4c63f69001 | redis:latest | “docker-entrypoint.s…” | 8 seconds ago | Up 7 seconds | 0.0.0.0:8001->6379/tcp, 0.0.0.0:8002->6379/tcp, 0.0.0.0:8003->6379/tcp | redis-1 |
| 243dcda1066c | redis:latest | “docker-entrypoint.s…” | About a minute ago | Up About a minute | 0.0.0.0:8000->6379/tcp | redis |
There are three ports attached to redis-1 container which are given below:
- 0.0.0.0:8001->6379/tcp
- 0.0.0.0:8002->6379/tcp
- 0.0.0.0:8003->6379/tcp
% docker port redis-1 Output: % 6379/tcp -> 0.0.0.0:8003 6379/tcp -> 0.0.0.0:8002 6379/tcp -> 0.0.0.0:8001
List down all the host ports connect to container port.
% docker port redis-1 6379/tcp Output: % 0.0.0.0:8003 0.0.0.0:8002 0.0.0.0:8001
To learn more about docker, Pls click given below link
https://techieindoor.com/category/docker/
References:
https://en.wikipedia.org/wiki/Docker_(software)