AWS CodeDeploy running util timeout then failing even though no erros

Question

I am running a CICD code deploy that is triggered via a Bitbucket pipeline. It all runs as expected, i.e. the code builds, deploys and the server starts perfectly with no errors.

Problem

However, the deployment will continue to run until it times out, and then will report the deployment as a failure. It is as if the AfterInstall call to the deploy.sh is ever released.

Question

What am I doing wrong? What must I do to release the deployment to allow it to complete with the server running in the background?

Do I need to change the deploy.sh, i.e. it needs to end with a '&'.?

Setup

I have a CodeDeploy set up as follows:

appspec.yml

version: 0.0
os: linux
files:
  - source: target/pow-wow-0.0.2-SNAPSHOT.jar
    destination: /home/jboss/bitbucket/pow-wow
    overwrite: true
file_exists_behavior: OVERWRITE
hooks:
  AfterInstall:
    - location: scripts/deploy.sh
      timeout: 300

deploy.sh

echo "about to deploy to pow-wow ($USER) ..."
export JAVA_HOME=/home/jboss/.sdkman/candidates/java/current
echo $JAVA_HOME
export PATH=$JAVA_HOME/bin:$PATH
cd /home/jboss/bitbucket/pow-wow
pwd
if lsof -Pi :8080 -sTCP:LISTEN
then
    echo "pow-wow is running"
    echo "stopping pow-wow on port 8080 ..."
    kill -9 $(lsof -t -i tcp:8080)
else
    echo "pow-wow is not running"
fi
mv pow-wow-0.0.2-SNAPSHOT.jar target/
cd /home/jboss/bitbucket/pow-wow/logs
if [ -e nohup.out ]
then
  echo "Sorting logs  ..."
  cat nohup.out >> nohup-$(date --iso).out
  echo "archive logs to nohup-date.out and remove nohup.out"
  rm nohup.out
fi
echo "starting pow-wow ..."
cd /home/jboss/bitbucket/pow-wow
nohup java -jar -Dspring.profiles.active=uat target/pow-wow-0.0.2-SNAPSHOT.jar > logs/nohup.out &
if [ -e logs/nohup.out ]
then
  echo "Created /home/jboss/bitbucket/pow-wow/logs/nohup.out"
fi
echo "Run Start pow-wow."