From 13fc5795a9057999c4bb38ddac4e429933673bdd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Fahller?= <bjorn@fahller.se>
Date: Mon, 23 Sep 2024 13:04:32 +0200
Subject: [PATCH] Dry-run pruning of old untagged images

---
 .github/workflows/prune-old-images.yml | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 .github/workflows/prune-old-images.yml

diff --git a/.github/workflows/prune-old-images.yml b/.github/workflows/prune-old-images.yml
new file mode 100644
index 0000000..2a0dc5f
--- /dev/null
+++ b/.github/workflows/prune-old-images.yml
@@ -0,0 +1,17 @@
+on:
+  schedule:
+    - cron: "12 11 * * *"
+
+jobs:
+  delete-old-untagged:
+    name: "Delete untagged containers older that 4 weeks"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: snok/container-retention-policy@v3.0.0
+        with:
+          account: rollbear
+          token: ${{ secrets.PAT }}
+          image-names: "gcc clang"
+          tag-selection: untagged
+          cut-off: 4w
+          dry-run: true