build.sh

#!/bin/bash

# Builds a single Open Liberty Docker Image
#  dir and tag must be specified, other arguments allow for overrides in development builds.

usage="Usage: build.sh --dir=<Dockerfile directory> --dockerfile --tag=<image tag name> (--tag2=<second image tag name> --tag3=<third image tag name> "

while [ $# -gt 0 ]; do
  case "$1" in
    --dir=*)
      dir="${1#*=}"
      ;;
   --dockerfile=*)
      dockerfile="${1#*=}"
      ;;
    --tag=*)
      tag="${1#*=}"
      ;;
    --tag2=*)
      tag2="${1#*=}"
      ;;
    --tag3=*)
      tag3="${1#*=}"
      ;;
    --from=*)
      from="${1#*=}"
      ;;      
    *)
      echo "Error: Invalid argument - $1"
      echo "$usage"
      exit 1
  esac
  shift
done

if [ -z "$dir" ] || [ -z "$tag" ]
then
  echo "Error: Must specify --dir and --tag args"
  echo "$usage"
  exit 1
fi

cd $dir
buildCommand="docker build -t $tag -f $dockerfile"
if [ ! -z "$tag2" ]
then
  buildCommand="$buildCommand -t $tag2"
fi
if [ ! -z "$tag3" ]
then
  buildCommand="$buildCommand -t $tag3"
fi
if [ ! -z "$from" ]
then 
  buildCommand="$buildCommand --build-arg PARENT_IMAGE=$from"
fi

buildCommand="$buildCommand ."

echo "****"
echo "Building $dir ($tag $tag2 $tag3)"
echo "$buildCommand"
echo "****"
eval $buildCommand

if [ $? = 0 ]
then
  echo "****"
  echo "Build successful $dir ($tag $tag2 $tag3)"
  echo "****"
else
  echo "Build failed $dir ($tag $tag2 $tag3), exiting."
  exit 1
fi