From 23a8cc3ed9bb5d2ea5aa3d8e6abfd433b73a833a Mon Sep 17 00:00:00 2001
From: Wez Furlong <wez@wezfurlong.org>
Date: Mon, 13 Mar 2023 20:29:59 -0700
Subject: [PATCH] ci: set up retention policy for older untagged docker images

Keep all tagged, and the last 5 untagged packages.
Anything else will get pruned away.
---
 .github/workflows/delete-old-packages.yml | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 .github/workflows/delete-old-packages.yml

diff --git a/.github/workflows/delete-old-packages.yml b/.github/workflows/delete-old-packages.yml
new file mode 100644
index 00000000..78f486a2
--- /dev/null
+++ b/.github/workflows/delete-old-packages.yml
@@ -0,0 +1,23 @@
+name: "Delete Old Packages"
+
+on:
+  schedule:
+    - cron: "50 1 * * *"
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  delete-old-docker:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+    steps:
+      - name: Checkout
+        uses: actions/delete-package-versions@v4
+        with:
+          package-name: kumomta
+          min-versions-to-keep: 5
+          delete-only-untagged-versions: true
+          package-type: container