Updater for Proxmox

proxmoxUpdateScript.sh

#!/bin/bash
# update all containers and host
# execute on host

echo "[UPDATER] +++ updating host and containers only +++"
echo "[UPDATER] +++ update your VMs separately +++"
echo ""

# Update host
echo "[UPDATER] updateing host"
apt update && DEBIAN_FRONTEND=noninteractive apt upgrade -y && apt autoremove -y

# Update container templates
echo "[UPDATER] updateing container templates"
pveam update

# Update container
echo "[UPDATER] updateing containers"

# list of container IDs we need to iterate through
containers=$(pct list | tail -n +2 | cut -f1 -d' ')

function updateContainer() {
  # update single container
  container=$1
  echo "[UPDATER] Updating $container"
  pct exec $container -- bash -c "apt update && apt upgrade -y && apt autoremove -y"
}

for container in $containers
# iterate through containers
do
  status=`pct status $container`
  if [ "$status" == "status: stopped" ]; then
    # start stopped containers for update
    echo "[Info] Starting $container"
    pct start $container
    sleep 5
    updateContainer $container
    echo "[Info] Shutting down $container"
    pct shutdown $container &
  elif [ "$status" == "status: running" ]; then
    updateContainer $container
  fi
done; wait

echo "[UPDATER] finished"