start

#!/usr/bin/env bash

set -e

needed_tools=()

if ! [ -x "$(command -v k3d)" ]; then
  needed_tools+=("k3d")
fi
if ! [ -x "$(command -v docker)" ]; then
  needed_tools+=("docker")
fi
if ! [ -x "$(command -v kubectl)" ]; then
  needed_tools+=("kubectl")
fi

if [ ${#needed_tools[@]} != 0 ]; then
  echo "The following tools are missing:"
  for item in "${needed_tools[@]}"; do
    echo "${item}"
  done
  exit 1
fi

IMAGE_NAME=duplication-example

function setup_cluster {
  k3d cluster create --config k3d.conf.yaml
  kubectl config use-context k3d-duplication-example
  kubectl create namespace example
}

function build_and_push_image {
  local REGISTRY="localhost:15000"
  local PROJECT_ROOT=./check-duplication-example

  local CURRDIR
  CURRDIR=$(pwd)
  cd "${PROJECT_ROOT}" || exit 1
  ./mvnw clean package -DskipTests
  cd "${CURRDIR}" || exit 1

  local IMAGE="${REGISTRY}/${IMAGE_NAME}:latest"
  docker build -f ./check-duplication-example/src/main/docker/Dockerfile.jvm "${PROJECT_ROOT}" -t "${IMAGE}"

  docker push "${IMAGE}"
}

function deploy {
  kubectl apply -f k8s.conf.yaml
}

function wait_for_rollout {
  echo "Waiting for deployment to finish..."
  local rolled_out=1
  while [ $rolled_out -ne 0 ]; do
    sleep 1s
    kubectl rollout status deploy/example -n example
    rolled_out=$?
  done
  echo "Deployment finished"
}

########
# MAIN #
########

setup_cluster
build_and_push_image
deploy
wait_for_rollout

echo
echo "=== DONE SETUP ==="
echo