transport closed before response received error

[binocarlos]

Hey, I'm having a little trouble connecting via powerstrip - here is what I did:

• built the powerstrip container from the latest socket-support-protocol-tweaks-and-versioning branch
• run a powerstrip-debug container which simply logs any requests to stdout before returning
• create the following powerstrip config:

endpoints:
  "/*/containers/create":
    pre: [debug]
  "/*/containers/*/start":
    post: [debug]
plugins:
  debug: http://debug/v1/extension

• start powerstrip:

$ docker run -d --name powerstrip \
  -v /var/run/docker.sock:/var/run/docker.sock \
  -v ~/powerstrip-demo/plugins.yml:/etc/powerstrip/plugins.yml \
  --link powerstrip-debug:debug \
  -p 2375:2375 \
  clusterhq/powerstrip

• edit DOCKER_HOST

$ export DOCKER_HOST=localhost:2375

• do a docker run against powerstrip

$ docker run --rm ubuntu bash -c "echo hello"

I get the following error when doing this:

FATA[0000] Post http://127.0.0.1:2375/v1.16/containers/create: net/http: transport closed before response was received. Are you trying to connect to a TLS-enabled daemon without TLS?

There is nothing logged from the debugger container so I don't think the request is making it that far.

Am a bit stuck - sorry if this is something obvious - any clues?

Thanks

[binocarlos]

Ignore this - I've found the problem.

Internally the powerstrip container is listening on port 4243

The command to start the container was using -p 2375:2375.

As soon as I change that to -p 2375:4243 everything works great!

Sorry for noise - I will open a PR for the Readme change.

[lukemarsden]

I think the PR should be against powerstrip.tac, because it should be listening on the documented (newly IANA-assigned) Docker port.

[lukemarsden]

btw, thanks for finding this bug and sorry for wasting your time with it!

[binocarlos]

good point I was thinking perhaps we should change the port number