Docker expose all ports or range of ports from 7000 to 8000

Question

Can I specify a port range in a Dockerfile

EXPOSE 7000-8000

and when running the container bind all these exposed ports to the same ports on the host machine?

docker run -p 7000-8000:7000-8000

Possible duplicate of [Docker: Expose a range of ports](http://stackoverflow.com/questions/28022656/docker-expose-a-range-of-ports) — Michael Irigoyen, Nov 10 '15 at 14:57

score 186 · Answer 1 · edited Aug 26 '19 at 04:24

186

Since Docker 1.5 you can now expose a range of ports to other linked containers using:

The Dockerfile EXPOSE command:

EXPOSE 7000-8000

or The Docker run command:

docker run --expose=7000-8000

Or instead you can publish a range of ports to the host machine via Docker run command:

docker run -p 7000-8000:7000-8000

edited Aug 26 '19 at 04:24

max23_

answered Feb 25 '15 at 14:31

DarVar

22

Check output of "iptables -L -n" on the host machine and you will see hundreds of lines each for single port mapping. If you give 5000-50000 , then practically you have to wait for a long time.Is this the supposed behaviour? – ᐅdevrimbaris Jul 22 '15 at 07:49
11

@ᐅdevrimbaris There is also a [docker process being launched per port](http://stackoverflow.com/q/37770567/1318694). I believe this is what takes up most of the work time. – Matt Jun 12 '16 at 03:53
2

the docs talk about the `--publish-all , -P` flag which "Publish all exposed ports to random ports". http://docs.docker.com/engine/reference/commandline/run/ – nils petersohn Jun 25 '18 at 10:56

1 Answers1