Provide an environment variable with the name of the current container

[dsyer]

I can see traces of it everywhere, e.g. in /etc/hosts:

172.17.0.198    848fdb642137
127.0.0.1   localhost
...
172.17.0.193    web_1
...

and

$ env | grep web
...
WEB_1_NAME=web_1
...

so fig has injected it in there somehow, but not in a very accessible way. It would be great to be able to discover that at runtime.

[dnephin]

CONTAINER_NAME=$(hostname) should give it to you. I'm not sure if there is a better way

[dsyer]

I think I know what you are trying to do, but hostname is set to a dockerish hash identifier (the container?) - 848fdb642137 in the example above. So not very useful for inter process communication.

[dnephin]

I guess I didn't understand the issue, what is "the name of the current container" ?

[dsyer]

In the example above it would be "web_1". Apologies if "name" is the wrong noun - it's not the hash id, so I didn't know what to call it. It's actually the hostname exposed via the docker link (I assume it is fig adding the "_1").

[dnephin]

Duplicate of #1503 which has a PR open for it, so closing this one.