commit 7e575b91a51f5f2d8cb9a788029d28aef9cd4a4b
Author: Sebastian Hugentobler <sebastian@vanwa.ch>
Date:   Wed Dec 13 09:54:30 2023 +0100

    initial commit

diff --git a/workflow.yaml b/workflow.yaml
new file mode 100644
index 0000000..8208c4b
--- /dev/null
+++ b/workflow.yaml
@@ -0,0 +1,55 @@
+name: "Multiarch Build Action"
+on:
+  workflow_call:
+    inputs:
+      archs:
+        required: true
+        type: string
+        default: "arm64, amd64"
+      repository:
+        required: true
+        type: string
+      ref_name:
+        required: true
+        type: string
+      sha:
+        required: true
+        type: string
+      registry_url:
+        required: true
+        type: string
+      registry_user:
+        required: true
+        type: string
+      registry_pw:
+        required: true
+        type: secret
+jobs:
+  build-container:
+    runs-on: buildah-latest
+    steps:
+      - name: Check out repository code
+        uses: actions/checkout@v3
+      - name: Split branch name
+        env:
+          REPO: ${{ inputs.repository }}
+        id: split
+        run: echo "::set-output name=repo_name::${REPO##*/}"
+      - name: Build image
+        id: build-image
+        uses: redhat-actions/buildah-build@v2
+        with:
+          image: ${{ inputs.registry_user }}/${{ steps.split.outputs.repo_name }}
+          tags: ${{ inputs.ref_name }} ${{ inputs.sha }}
+          archs: ${{ inputs.archs }}
+          containerfiles: |
+            ./Containerfile
+      - name: Push to registry
+        id: push-to-registry
+        uses: redhat-actions/push-to-registry@v2
+        with:
+          image: ${{ steps.build-image.outputs.image }}
+          tags: ${{ steps.build-image.outputs.tags }}
+          registry: ${{ inputs.registry_url }}
+          username: ${{ inputs.registry_user }}
+          password: ${{ inputs.registry_pw }}