build arm image

packages/reservation-platform/docker/build_image.sh

@@ -4,14 +4,38 @@
 IMAGE_NAME="myp-rp"
 IMAGE_TAG="latest"
 
-# Build the Docker image from Containerfile
-echo "Building Docker image from Containerfile..."
-docker build -t ${IMAGE_NAME}:${IMAGE_TAG} -f $PWD/Containerfile $PWD
+# Create a new builder instance with a sensible name
+BUILDER_NAME="myp-rp-arm64-builder"
+echo "Creating a new builder instance named $BUILDER_NAME..."
+docker buildx create --name $BUILDER_NAME --use
+
+# Build the Docker image from Containerfile for arm64
+echo "Building Docker image from Containerfile for arm64..."
+docker buildx build --platform linux/arm64 -t ${IMAGE_NAME}:${IMAGE_TAG} -f $PWD/Containerfile $PWD --output type=docker,dest=docker/${IMAGE_NAME}_${IMAGE_TAG}.tar
 
 # Check if the build was successful
 if [ $? -ne 0 ]; then
     echo "Error occurred while building the Docker image"
+    docker buildx rm $BUILDER_NAME
     exit 1
 fi
 
 echo "Docker image built successfully"
+
+# Compress the tar file using xz
+echo "Compressing the image to docker/${IMAGE_NAME}_${IMAGE_TAG}.tar.xz..."
+xz -z docker/${IMAGE_NAME}_${IMAGE_TAG}.tar
+
+# Check if the compression was successful
+if [ $? -ne 0 ]; then
+    echo "Error occurred while compressing the Docker image"
+    docker buildx rm $BUILDER_NAME
+    exit 1
+fi
+
+echo "Docker image compressed successfully as docker/${IMAGE_NAME}_${IMAGE_TAG}.tar.xz"
+
+# Remove the builder instance
+docker buildx rm $BUILDER_NAME
+
+echo "Build process completed"