Add GitLab CI pipeline

Change-Id: I9534f482e264cee279b447eef0971968aa79231d
diff --git a/.gitignore b/.gitignore
index 76f6486..7e0c95a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,4 @@
 .*\.log
 .*LOG
 LOG.*
+!.gitlab-ci.yml