Add CI/CD to doorkey

.gitlab-ci.yml

+stages:
+  - test
+  - deploy
+
+
+#before_script:
+
+php-syntax-check:
+  stage: test
+  script:
+   - apt-get clean
+   - apt-get update
+   - apt-get install -y php-cli
+   - php -l public/index.php
+   - php -l public/pull.php
+
+deploy-live:
+  stage: deploy
+  image: curlimages/curl:7.80.0
+  script:
+   - curl --fail-with-body https://doorkey.sucs.org/pull.php
+  only:
+   - master
+  environment: live

public/pull.php

+<?php
+
+exec("cd ..; git reset --hard HEAD; git pull", $retArr, $retVal);
+
+if ($retVal == 0) {
+	print("ok");
+	exit(0);
+}
+
+print("not ok\n");
+var_dump($retArr);
+var_dump($retVal);
+
+?>
\ No newline at end of file