Add image mirror utility and workflow

.github/workflows/workflow.yml

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+
+# Copyright (c) 2022 Red Hat, Inc.
+# This program and the accompanying materials are made
+# available under the terms of the Eclipse Public License 2.0
+# which is available at https://www.eclipse.org/legal/epl-2.0/
+#
+# SPDX-License-Identifier: EPL-2.0
+#
+name: Mirror Container Images
+
+on:
+  push:
+    branches: [ main ]
+  schedule:
+    - cron: 0 5 * * *
+
+jobs:
+
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Check out code
+      uses: actions/checkout@v2
+    - name: Update packages
+      run: sudo apt-get -y update
+    - name: Install Skopeo
+      run: sudo apt-get -y install skopeo
+    - name: Login to Quay
+      uses: docker/login-action@v1 
+      with:
+        registry: quay.io
+        username: ${{ secrets.QUAY_USERNAME }}
+        password: ${{ secrets.QUAY_TOKEN }}
+    - name: Mirror Container Images
+      run: ./image-mirror.sh quay.io/devfile

image-mirror.sh

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+#!/bin/bash
+
+DEST_ORG=$1
+
+cat mirror_list.txt
+
+while read -r image_repo;
+do
+   echo "Mirroring $image_repo to $DEST_ORG"
+   skopeo sync --src docker --dest docker $image_repo $DEST_ORG --override-os linux
+done < "mirror_list.txt"

mirror_list.txt

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+golang:latest
+node:lts-slim
+node:lts
+composer:2.1.11