Compose: docker-compose extra-hosts

[sjauck]

Hi.

I used docker-compose for a selenium-grid. in my yml file i added extra-hosts to add the ip of my test system to the etc/hosts file. After Upgrading it didn´t work. Are there something broken with the last version?

docker-compose version 1.6.0, build d99cad6

Client:
Version: 1.9.1
API version: 1.21
Go version: go1.4.2
Git commit: a34a1d5
Built: Fri Nov 20 13:16:54 UTC 2015
OS/Arch: linux/amd64

Server:
Version: 1.9.1
API version: 1.21
Go version: go1.4.2
Git commit: a34a1d5
Built: Fri Nov 20 13:16:54 UTC 2015
OS/Arch: linux/amd64

yml file:
selhub:
image: selenium/hub
ports:
- 4444:4444

nodeff:
image: selenium/node-firefox-debug
ports:
- 5900
links:
- selhub:hub
extra-hosts:
- "domain.dev:172.17.0.1"

nodechrome:
image: selenium/node-chrome-debug
ports:
- 5900
links:
- selhub:hub
extra-hosts:
- "domain.dev:172.17.0.1"

Error message:
ERROR: Validation failed in file './docker-compose.yml', reason(s):
Unsupported config option for nodechrome: 'extra-hosts'
Unsupported config option for nodeff: 'extra-hosts'

[dnephin]

The config option is extra_hosts (https://docs.docker.com/compose/compose-file/#extra-hosts) not extra-hosts, despite the url (which is an artifact of the docs system we use).