Configure Nginx to preserve external IP

Update the gitlab deployment with gitlab_rails['trusted_proxies'], and add annotation to Nginx service to support preservation of external IPs to internal nodes.

This is now available because of the availability of k8s 1.5.x on GKE, where as it was not previously.

Closes #16 (closed)

assigned to @WarheadsSE

added 1 commit

• c4fb5d78 - Expand trusted proxies to all non-routable blocks.

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resolved all discussions

mentioned in commit aae59099

merged