From 495f91690dcdc9bf7b7647b6fe1409891d2d4233 Mon Sep 17 00:00:00 2001
From: thethreemagi <thethreemagi@outlook.com>
Date: Thu, 14 May 2026 20:39:42 +0100
Subject: [PATCH] Add reusable build-and-push workflow

---
 .gitea/workflows/build-and-push.yml | 80 +++++++++++++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100644 .gitea/workflows/build-and-push.yml

diff --git a/.gitea/workflows/build-and-push.yml b/.gitea/workflows/build-and-push.yml
new file mode 100644
index 0000000..59226e3
--- /dev/null
+++ b/.gitea/workflows/build-and-push.yml
@@ -0,0 +1,80 @@
+# Reusable workflow — called by project repos via `uses:`
+# Requires Gitea 1.21+ for workflow_call support.
+# Runner assumed on Pi 5 (ARM64 native) — no QEMU needed.
+# If runner moves to x86 NAS, uncomment the QEMU setup steps.
+
+name: Build and push Docker image
+
+on:
+  workflow_call:
+    inputs:
+      image_name:
+        description: "Image name (no registry prefix)"
+        required: true
+        type: string
+      dockerfile_path:
+        description: "Path to Dockerfile"
+        required: false
+        type: string
+        default: "Dockerfile"
+      platforms:
+        description: "Target platform(s)"
+        required: false
+        type: string
+        default: "linux/arm64"
+      registry:
+        description: "Container registry host"
+        required: false
+        type: string
+        default: "git.thewichersfamily.com"
+      registry_owner:
+        description: "Registry namespace"
+        required: false
+        type: string
+        default: "thethreemagi"
+    secrets:
+      REGISTRY_USER:
+        required: true
+      REGISTRY_TOKEN:
+        required: true
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      # Uncomment if runner is on x86 NAS (cross-compiling for Pi ARM64):
+      # - name: Set up QEMU
+      #   uses: docker/setup-qemu-action@v3
+      # - name: Set up Docker Buildx
+      #   uses: docker/setup-buildx-action@v3
+
+      - name: Log in to Gitea registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ inputs.registry }}
+          username: ${{ secrets.REGISTRY_USER }}
+          password: ${{ secrets.REGISTRY_TOKEN }}
+
+      - name: Extract metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ inputs.registry }}/${{ inputs.registry_owner }}/${{ inputs.image_name }}
+          tags: |
+            type=raw,value=latest,enable={{is_default_branch}}
+            type=sha,prefix=sha-,format=short
+
+      - name: Build and push
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ${{ inputs.dockerfile_path }}
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          platforms: ${{ inputs.platforms }}
+          cache-from: type=registry,ref=${{ inputs.registry }}/${{ inputs.registry_owner }}/${{ inputs.image_name }}:buildcache
+          cache-to: type=registry,ref=${{ inputs.registry }}/${{ inputs.registry_owner }}/${{ inputs.image_name }}:buildcache,mode=max