Bash script build docker image using Buildkit and Docker image cache speeding up build progress

docker-build-push.sh

#!/bin/bash

# Define Docker image tag
TAG=${DOCKER_REGISTRY}/${REPO_NAME}:${APP_VER:latest}
echo $TAG

# Enable Docker BuildKit
export DOCKER_BUILDKIT=1

# Pull Docker image cache
echo "Pulling Docker image cache..."
docker pull "$TAG" || true

# Build Docker image
echo "Building Docker image..."
docker build -f "$DOCKERFILE_PATH" --cache-from "$TAG" -t "$TAG" .

# Push Docker image to registry
echo "Pushing Docker image to registry..."
docker push "$TAG"