Updates for 9.1

Closes #37

See merge request !35

Automatically configure Kubernetes Service

Closes gitlab-ce#28888

See merge request !34

Upgrade to GitLab CE 9.0.2

Closes #32

See merge request !32

Update to 9.0.2 security release.

Change postgres mount dir and pgdata to make persistent data work

See merge request !31

Updates for 9.0

See merge request !30

Update runner to 1.11.1

Closes #27

See merge request !29

Bump to 8.17.2

See merge request !28

Fix a few typos

See merge request !27

Upgrade GitLab instance to 8.17.0

Closes #23

See merge request !26

Update the container used for GitLab to `gitlab/gitlab-ce:8.17.0-ce.0`

This no longer needs the `fix-git-hooks.patch`, so remove that and all plumbing surrounding it. cc/ @ayufan

Configure Nginx to preserve external IP

Closes #16

See merge request !24

Expand `trusted_proxies` to include all non-routable network blocks per RFC 1918

Update gitignore to exclude all generated YAML

See merge request !25

Replace the static generated yaml file with a pattern `gitlab-*-*.yml` to catch all generated YAML files, as our output pattern is made from the `echo $GITLAB_GKE_DOMAIN | tr . -`, it should alway match.

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.

Ignore `.env` file

See merge request !23

Add a gitignore line for a local `.env` environment file.