starting docker container with port binding on docker engine api

Question

reading the doc from docker remote api I get issue when start my container using the API https://docs.docker.com/engine/api/v1.41/#operation/ContainerCreate

The doc at the "Publish or expose port (-p, --expose)" section talks about use the -p to bind a port to application. Using the docker remote api I create the container using this payload

    POST http://[...]/containers/create

    {
        "Image": "correiosimg",
        "ExposedPorts":{
            "0.0.0.0:80:8089/tcp":{}
        }
    }

but when I call the endpoint to start the container, It takes the port "0/tcp" on docker console.. the service starts, but inacessible

my docker ps console: https://i.stack.imgur.com/V53Mc.png docker compose file: https://i.stack.imgur.com/ueC2f.png

tkss!

Answer 1

The setting you show is for the essentially meaningless "expose" option. You need to "publish" ports instead. That operation is in "HostConfig" "PortBindings"; it is an object with the container ports as keys and a small object with values.

So the API request body you need might look a little more like

{
  "Image": "correiosimg",
  "HostConfig": {
    "PortBindings": {
      "8089/tcp": {
        "HostIp": "0.0.0.0",
        "HostPort": "80"
      }
    }
  }
}