Add --docker-image flag to tasks

README.md

@@ -10,7 +10,7 @@ your choice.
  2. Get the ip address of the new VM, and configure your ssh environment
  3. Create & activate a python virtual environment and install ansible
  4. Update inventory.yml so that your VM is defined in the "gitlab-runner" group
- 5. Create the file `group_vars/ci-runners.yml` following the [example file](group_vars/ci-runners.yml.example) given
+ 5. Create the file `group_vars/ci_runners.yml` following the [example file](group_vars/ci_runners.yml.example) given
     * Consider the type of executor you want/need (docker, shell, etc.)
         * More info on GitLab runner executors can be found [here](https://docs.gitlab.com/runner/executors/)
     * This requires acquiring an access token to the GitLab instance for which you want to set up a runner

inventory.yml

-ci-runners:
+ci_runners:
   hosts:
     nat-runner-01:
       ansible_host: nat-runner-01

playbook.yml

 - name: Install and set up a GitLab CI runner
-  hosts: ci-runners
+  hosts: ci_runners
   become: true
   roles:
     - gitlab-runner

roles/gitlab-runner/tasks/main.yml

@@ -42,6 +42,7 @@
       - '--url={{ runner.gitlab_url }}'
       - '--token={{ gitlab_authentication_response.runner.token }}'
       - '--executor={{ runner.executor }}'
+      - '--docker-image=alpine:latest'
       - '--non-interactive'
   become: true
   no_log: true