build.bash

# Build and push the multi-architectrue images.

# Modify the following variables as appropraite when building new base inmages.
DOCKER_HUB_USER="farmdata2"
IMAGE="fd2-vnc-novnc-base"
TAG="1.3.0"
PLATFORMS=linux/amd64,linux/arm64

LOCAL_BUILD=0
PUSH=0
while getopts ":dp:" opt
do
  case $opt in
    d) LOCAL_BUILD=1;;
    p) PUSH=1;;
    *) echo "Invalid option: -$opt";;
  esac
done

# Only check the login and make the builder if we are pushing the images.
if [ "$LOCAL_BUILD" = "0" ] && [ "$PUSH" = "1" ];
then
  # Check that the DockerHub user identified above is logged in.
  if [ "$(which docker-credential-desktop)" != "" ];
  then
    LOGGED_IN=$(docker-credential-desktop list | grep "$DOCKER_HUB_USER" | wc -l | cut -f 8 -d ' ')
  else
    LOGGED_IN=$(docker system info | grep -E 'Username|Registry' | grep "$DOCKER_HUB_USER" | wc -l | cut -f 8 -d ' ')
  fi

  if [ "$LOGGED_IN" == "0" ];
  then
    echo "Please log into Docker Hub as $DOCKER_HUB_USER before building images."
    echo "  Use: docker login"
    echo "This allows multi architecture images to be pushed."
    exit 255
  fi
fi

# Create a builder for this image if it doesn't exist.
BUILDER_NAME=vncbuilder
BUILDER=$(docker buildx ls | grep "$BUILDER_NAME" | wc -l | cut -f 8 -d ' ')
if [ "$BUILDER" == "0" ];
then
  echo "Making new builder for $BUILDER_NAME images."
  docker buildx create --name "$BUILDER_NAME" --driver docker-container --bootstrap
fi

# Switch to use the builder for this image.
docker buildx use "$BUILDER_NAME"

# Print some info on the images
FULL_IMAGE_NAME="$DOCKER_HUB_USER"/"$IMAGE:$TAG"
echo
echo "Buiding image: $IMAGE"
echo "     With tag: $TAG"
if [ "$LOCAL_BUILD" = "1" ]; 
then 
  echo "Using Builder: building locally"
else
  echo "For platforms: $PLATFORMS"
  echo "Using builder: $BUILDER_NAME"
fi

if [ "$PUSH" = "1" ];
then
  echo "   Pushing to: $DOCKER_HUB_USER"
else
  echo "   Pushing to: Not pushing image(s)."
fi

echo "    Full name: $FULL_IMAGE_NAME"
echo

if [ "$LOCAL_BUILD" = "1" ];
then
  docker build -t $FULL_IMAGE_NAME .
elif [ "$PUSH" = "0" ];
then
  # Build the image but don't push
  docker buildx build --platform "$PLATFORMS" -t $FULL_IMAGE_NAME .
else
  # Build and push the images.
  docker buildx build --platform "$PLATFORMS" -t $FULL_IMAGE_NAME --push .
fi