Add GitLab and GitLab Runner.

Change-Id: Iaf9bbf4567db2ee7c5b36c6be767825093a2881d
diff --git a/gitlab-system/gitlab-runner/.gitignore b/gitlab-system/gitlab-runner/.gitignore
new file mode 100644
index 0000000..91cc9ca
--- /dev/null
+++ b/gitlab-system/gitlab-runner/.gitignore
@@ -0,0 +1 @@
+/config.toml