From bc58782d80dfd99236a9b7217364aa6515ddca1a Mon Sep 17 00:00:00 2001
From: Sergio Talens-Oliag <sto@mixinet.net>
Date: Fri, 14 Mar 2025 08:48:54 +0100
Subject: [PATCH] Initial commit.

---
 .forgejo/workflows/mirrors.yaml | 35 +++++++++++++++++++++++++++++++++
 README.md                       |  9 +++++++++
 regsync.envsubst.yml            | 17 ++++++++++++++++
 3 files changed, 61 insertions(+)
 create mode 100644 .forgejo/workflows/mirrors.yaml
 create mode 100644 README.md
 create mode 100644 regsync.envsubst.yml

diff --git a/.forgejo/workflows/mirrors.yaml b/.forgejo/workflows/mirrors.yaml
new file mode 100644
index 0000000..64af9ea
--- /dev/null
+++ b/.forgejo/workflows/mirrors.yaml
@@ -0,0 +1,35 @@
+# Based on https://code.forgejo.org/forgejo/oci-mirror/raw/branch/main/.forgejo/workflows/mirror.yml
+name: mirror
+
+on:
+  schedule:
+    - cron: '@daily'
+  push:
+    branches:
+      - main
+    paths:
+      - 'regsync.envsubst.yml'
+  workflow_dispatch:
+
+jobs:
+  mirror:
+    if: ${{ vars.REGISTRY_USER != '' && secrets.REGISTRY_PASS != '' }}
+    runs-on: docker
+    container:
+      image: forgejo.mixinet.net/oci/node-mixinet:latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          show-progress: false
+      - name: Sync images
+        run: |
+          echo "Creating .regsync.yml file"
+          REGISTRY="$(echo "${{ github.server_url }}" | sed -e 's%https://%%')" \
+          REGISTRY_USER="${{ vars.REGISTRY_USER }}" \
+          REGISTRY_PASS="${{ secrets.REGISTRY_PASS }}" \
+            envsubst <regsync.envsubst.yml >.regsync.yml
+          echo "Running regsync"
+          regsync --config .regsync.yml once
+          echo "Cleaning up"
+          rm -f .regsync.yml
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..58f67da
--- /dev/null
+++ b/README.md
@@ -0,0 +1,9 @@
+# Mixinet OCI images mirror
+
+This repository contains a configuration file to synchronize images on the [OCI](https://forgejo.mixinet.dev/oci/)
+organization of the [mixinet forgejo](https://forgejo.mixinet.net) instance using the
+[regsync](https://regclient.org/cli/regsync/) tool.
+
+The tool is executed daily and on each push to the main branch of the repository using a forgejo action. The action
+uses an image that is also on the organization that has the tool already installed (see the [images
+project](https://forgejo.mixinet.dev/oci/images)).
diff --git a/regsync.envsubst.yml b/regsync.envsubst.yml
new file mode 100644
index 0000000..1aa89f7
--- /dev/null
+++ b/regsync.envsubst.yml
@@ -0,0 +1,17 @@
+version: 1
+creds:
+  - registry: "$REGISTRY"
+    user: "$REGISTRY_USER"
+    pass: "$REGISTRY_PASS"
+sync:
+  - source: alpine
+    target: $REGISTRY/oci/alpine
+    type: repository
+    tags:
+      allow:
+        - "latest"
+        - "3\\.2\\d+"
+        - "3\\.2\\d+.\\d+"
+      deny:
+        - "3\\.20"
+        - "3\\.20.\\d+"