[mutter/alatiera/workflow-rules] ci: Set some sensible defaults

[Jordan Petridis <jpetridis src gnome org>]

commit 68de539cbced316e74a154125358015719b2cbd9
Author: Jordan Petridis <jpetridis gnome org>
Date:   Fri Nov 20 00:40:34 2020 +0200

    ci: Set some sensible defaults
    
    * Allow for all jobs to be cancelled if a newer commit is pushed
    * Automatically retry jobs if they fail due to some infrastructure issue

 .gitlab-ci.yml | 12 ++++++++++++
 1 file changed, 12 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 7960301125..dbe0283489 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -30,6 +30,18 @@ stages:
 
       dnf clean all
 
+default:
+  # Cancel jobs if newer commits are pushed to the branch
+  interruptible: true
+  # Auto-retry jobs in case of infra failures
+  retry:
+    max: 1
+    when:
+      - 'runner_system_failure'
+      - 'stuck_or_timeout_failure'
+      - 'scheduler_failure'
+      - 'api_failure'
+
 workflow:
   rules:
     - if: '$CI_MERGE_REQUEST_IID'