Added docker executor 'privileged' configurable option.

defaults/main.yml

@@ -14,3 +14,6 @@ gitlab_runner_executor: 'shell'
 gitlab_runner_docker_image: ''
 # Runner tags
 gitlab_runner_tags: []
+# Docker privileged mode
+gitlab_runner_docker_privileged: false
+

tasks/global-setup.yml

@@ -2,6 +2,16 @@
 - name: Set concurrent option
   lineinfile:
     dest: /etc/gitlab-runner/config.toml
-    regexp: ^concurrent =
-    line: concurrent = {{ gitlab_runner_concurrent }}
+    regexp: '^(\s*)concurrent ='
+    line: '\1concurrent = {{ gitlab_runner_concurrent }}'
     state: present
+    backrefs: yes
+
+- name: Set docker privileged option
+  lineinfile:
+    dest: /etc/gitlab-runner/config.toml
+    regexp: '^(\s*)privileged ='
+    line: '\1privileged = {{ gitlab_runner_docker_privileged | lower}}'
+    state: present
+    backrefs: yes
+