Setting etcd host and port

[amalagaura]

Just a comment on the HUBOT_ETCD_HOST and HUBOT_ETCD_PORT. The following does not work:

      - HUBOT_ETCD_HOST=etcd
      - HUBOT_ETCD_PORT=2379

ERROR cannot connect to etcd cluster: etcd

The following does work:

      - HUBOT_ETCD_HOST=http://etcd
      - HUBOT_ETCD_PORT=2379

or

      - HUBOT_ETCD_HOST=http://etcd:2379

So it seems silly to have the separate PORT variable. It seems a lot easier and simpler if we would just say:

      - HUBOT_ETCD_URL=http://etcd:2379

And just pass that directly on the command line instead of creating the NODE variable in the script.

[amalagaura]

Can I create a pull request for this?

It will reverse the first pull request which created the variable. That person can accomplish the same thing by only setting the URL variable without a port. The downside is that it is a breaking change.

[geowa4]

I agree we should only need to set HUBOT_ETCD_URL. I would support that PR.