From db6baf1a3b6640bd603ae9cbcf2e840e5ca09d4a Mon Sep 17 00:00:00 2001
From: Luca Heltai <luca.heltai@sissa.it>
Date: Mon, 24 Jun 2024 23:20:30 +0200
Subject: [PATCH] Add multi platform docker images.

---
 .github/workflows/docker.yml | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index 2f106bbcfd..97e22a0fb2 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -21,7 +21,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ubuntu_version: [focal, jammy]
+        ubuntu_version: [jammy]
         # Use only 1 job to build, as more jobs
         # would starve the github machine for memory.
         include:
@@ -31,6 +31,9 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
@@ -40,6 +43,13 @@ jobs:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
 
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
       - name: Build and push Docker image of master ${{ matrix.ubuntu_version }}
         uses: docker/build-push-action@v6
         with:
@@ -50,5 +60,8 @@ jobs:
             IMG=${{ matrix.ubuntu_version }}
             NJOBS=${{ matrix.n_jobs }}
             VER=master
+          platforms: linux/arm64,linux/amd64
           push: ${{ github.event_name == 'schedule' }}
-          tags: dealii/dealii:master-${{ matrix.ubuntu_version }}
+          tags: |
+            dealii/dealii:master-${{ matrix.ubuntu_version }}
+            ghcr.io/${{ github.repository }}:master-${{ matrix.ubuntu_version }}
-- 
2.39.5