Merge branch 'backup-docker-docs' into 'master'

Add an example of how to run the backups when using docker to the docs ## What are the relevant issue numbers? https://gitlab.com/gitlab-org/omnibus-gitlab/issues/1616 See merge request !7046

Merge branch 'backup-docker-docs' into 'master'
d9905722 · Achilleas Pipinellis · 146d4348 · fadaba00 · d9905722
Commit d9905722 authored Oct 24, 2016 by Achilleas Pipinellis
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backup_restore.md doc/raketasks/backup_restore.md +4 -0

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@@ -30,6 +30,10 @@ Use this if you've installed GitLab from source:
 ```
 sudo -u git -H bundle exec rake gitlab:backup:create RAILS_ENV=production
 ```
+If you are running GitLab within a Docker container, you can run the backup from the host:
+```
+docker -t exec <container name> gitlab-rake gitlab:backup:create
+```

 You can specify that portions of the application data be skipped using the
 environment variable `SKIP`. You can skip: