add multi arch

build-image.sh

@@ -1,5 +1,7 @@
 #!/bin/bash
 
+set -e
+
 if [ $# -eq 0 ]; then
     echo "Usage: $0 <image-name>"
     echo "Example: $0 base-debian"
@@ -9,9 +11,16 @@ fi
 IMAGE_NAME=${1:-base-debian}
 echo "Building Docker image: $IMAGE_NAME"
 
+if ! command -v dpkg &> /dev/null; then
+    echo "❌ Error: dpkg not found. This script only works on Debian-based systems."
+    exit 1
+fi
+
+ARCH=$(dpkg --print-architecture)  # Outputs amd64, arm64, armhf, etc.
+echo "🛠 Detected architecture: $ARCH"
+
 REPO="registry.tomastm.com"
 TAG_LATEST="latest"
-
 BUILD_DIR="./${IMAGE_NAME}"
 
 if [ ! -d "${BUILD_DIR}" ]; then
@@ -19,35 +28,40 @@ if [ ! -d "${BUILD_DIR}" ]; then
   exit 1
 fi
 
-UID=$(id -u)
-GID=$(id -g)
+_UID=$(id -u)
+_GID=$(id -g)
 
 COMMIT_ID=$(git rev-parse --short HEAD)
 
-IMAGE_LATEST="${REPO}/${IMAGE_NAME}:${TAG_LATEST}"
-IMAGE_COMMIT="${REPO}/${IMAGE_NAME}:${COMMIT_ID}"
+IMAGE_ARCH="${REPO}/${IMAGE_NAME}:${COMMIT_ID}-${ARCH}"
+IMAGE_LATEST="${REPO}/${IMAGE_NAME}:${TAG_LATEST}-${ARCH}"
 
 docker build \
-  -t ${IMAGE_COMMIT} \
-  --build-arg UID=${UID} \
-  --build-arg GID=${GID} \
+  -t ${IMAGE_ARCH} \
+  --build-arg UID=${_UID} \
+  --build-arg GID=${_GID} \
   ${BUILD_DIR}
 
-docker tag ${IMAGE_COMMIT} ${IMAGE_LATEST}
+docker tag ${IMAGE_ARCH} ${IMAGE_LATEST}
 
 echo "✅ Successfully built and tagged:"
-echo "   📌 ${IMAGE_COMMIT}"
+echo "   📌 ${IMAGE_ARCH}"
 echo "   🔄 ${IMAGE_LATEST}"
 
 read -p "🚀 Do you want to push the image to ${REPO}? (y/N): " PUSH_CONFIRM
 if [[ "$PUSH_CONFIRM" =~ ^[Yy]$ ]]; then
   echo "📤 Pushing images..."
-  docker push ${IMAGE_COMMIT}
+  docker push ${IMAGE_ARCH}
   docker push ${IMAGE_LATEST}
   echo "✅ Successfully pushed images to ${REPO}"
+
+  echo "ℹ️ Next step: If you have built and pushed both amd64 and arm64 versions, run the following command to create a multi-arch manifest:"
+  echo "   docker manifest create ${REPO}/${IMAGE_NAME}:${COMMIT_ID} \\"
+  echo "      ${REPO}/${IMAGE_NAME}:${COMMIT_ID}-amd64 \\"
+  echo "      ${REPO}/${IMAGE_NAME}:${COMMIT_ID}-arm64"
+  echo "   docker manifest push ${REPO}/${IMAGE_NAME}:${COMMIT_ID}"
 else
   echo "ℹ️ Skipping push. You can manually push later with:"
-  echo "   docker push ${IMAGE_COMMIT}"
+  echo "   docker push ${IMAGE_ARCH}"
   echo "   docker push ${IMAGE_LATEST}"
 fi
-