Initial commit.

.forgejo/workflows/mirrors.yaml

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+# 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

README.md

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+# 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)).

regsync.envsubst.yml

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+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+"