From bd349e28f85e0f16ac1dc31c4db270ef8f62f5e7 Mon Sep 17 00:00:00 2001
From: Shizun Ge <shizunge@gmail.com>
Date: Fri, 30 Jun 2023 22:02:24 -0700
Subject: [PATCH] [clean-ghcr] add a step to clean untagged images

---
 .github/workflows/on-push-main.yml | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/.github/workflows/on-push-main.yml b/.github/workflows/on-push-main.yml
index 9714e33..81ad16e 100644
--- a/.github/workflows/on-push-main.yml
+++ b/.github/workflows/on-push-main.yml
@@ -68,4 +68,15 @@ jobs:
           skip-tags: latest, development
           filter-tags: "dev-*"
           dry-run: False
+      - name: Delete untagged images
+        uses: snok/container-retention-policy@v2
+        with:
+          image-names: gantry
+          cut-off: One hour ago UTC
+          account-type: personal
+          token: ${{ secrets.TOKEN_DELETE_GHCR_IMAGES }}
+          keep-at-least: 1
+          untagged-only: True
+          skip-tags: latest, development
+          dry-run: False