#!/bin/bash
set -o errexit
set -o nounset
set -o pipefail

DPKG_LOCK="/var/lib/dpkg/lock-frontend"
# Wait for other apt process to finish by checking the dpkg lock file.
try=0
while sudo lsof ${DPKG_LOCK}  > /dev/null 2>&1 ; do
  echo "DPKG file locked: ${DPKG_LOCK}."
  echo "   Waiting for another pkg instalaltion process to finish ..."
  sleep 10
  if [[ ${try} -gt 60 ]] ; then
    echo "ERROR: Max number of re-tries reached, exiting..."
    exit 1
  fi
  try=$((try + 1))
done

sudo apt install -y -q=3 python3.8-minimal python3-pip virtualenv

# workaround for https://github.com/pypa/virtualenv/issues/1029
export PS1=${PS1:-}

cd "$WORKSPACE"
echo "----------------------------------------------------"
echo "Info: Create virtualenv to update Jenkins slaves"
virtualenv -p python3.8 --quiet --no-site-packages .venv
source .venv/bin/activate
pip install python-openstackclient
echo "----------------------------------------------------"
echo "Info  : Installing packer version ${PACKER_VERSION}"
wget -q "https://releases.hashicorp.com/packer/${PACKER_VERSION}/packer_${PACKER_VERSION}_linux_amd64.zip" -O /tmp/packer.zip
unzip /tmp/packer.zip > /dev/null 2>&1
sudo mv -f ./packer /usr/local/bin/packer
sudo chmod +x /usr/local/bin/packer
echo "----------------------------------------------------"
packer -version
/bin/rm -f /tmp/packer.zip
# shellcheck disable=SC1091
source "/tmp/openrc"
echo "----------------------------------------------------"
echo "Info: Create backup of existing image"
cd "$WORKSPACE"
BACKUP_ZONE_ID=$(openstack image list --property name=${IMAGE} -f value -c ID)
if [ -z ${BACKUP_ZONE_ID} ] ; then
   echo "Warning: No previous image found to backup"
else
   openstack image set --name "${IMAGE}-backup-$GIT_COMMIT" "$BACKUP_ZONE_ID"
fi
echo "----------------------------------------------------"
echo "Info: Updating the CI slave image"
cd "infra/jenkins/slave-setup/${TARGET}/"
packer validate *-ubuntu*.json
packer build *-ubuntu*.json
echo "----------------------------------------------------"