Give an example of PORT in readme?

[Chuck McCallum]

Thanks for making this! This might be obvious, but I was confused at first when PORT by itself didn't work for me, but adding --publish fixed it. Maybe an example in the README of the correct usage?

$ docker run --detach -P -e PORT=80 --name echo1 jmalloc/echo-server
$ docker logs echo1
Echo server listening on port 80.
$ docker ps
CONTAINER ID        IMAGE                 COMMAND              CREATED             STATUS              PORTS                     NAMES
40d0d62870b4        jmalloc/echo-server   "/bin/echo-server"   30 seconds ago      Up 29 seconds       0.0.0.0:32995->8080/tcp   echo1
$ curl http://localhost:32995
curl: (52) Empty reply from server

$ docker run --detach --publish 11111:80 -e PORT=80 --name echo2 jmalloc/echo-server
$ docker ps
CONTAINER ID        IMAGE                 COMMAND              CREATED              STATUS              PORTS                             NAMES
114811d87923        jmalloc/echo-server   "/bin/echo-server"   7 seconds ago        Up 7 seconds        8080/tcp, 0.0.0.0:11111->80/tcp   echo2
40d0d62870b4        jmalloc/echo-server   "/bin/echo-server"   About a minute ago   Up About a minute   0.0.0.0:32995->8080/tcp           echo1
$ curl http://localhost:11111
Request served by 114811d87923

HTTP/1.1 GET /

Host: localhost:11111
User-Agent: curl/7.52.1
Accept: */*

[James Harris]

Apologies for my remarkably late reply. I finally got around to updating the README to demonstrate this more directly. Thanks for the report :)