#!/bin/bash

IMAGES_WITH_TAGS=$(docker images | grep -v REPOSITORY | grep -v TAG | grep -v "<none>" | awk '{printf("%s:%s\n", $1, $2)}')
HOSTNAME=$(hostname)
USER=MATRIXUSER
PASS=PASS
SERVER=SERVER
ROOMID=MATRIXROOMID
APPRISERVER=1.2.3.4:1234


for IMAGE in $IMAGES_WITH_TAGS; do
  echo "*****"
  echo "Updating $IMAGE"
  docker pull $IMAGE | grep 'Image is up to date' &> /dev/null
  if [ $? == 0 ]; then
   echo "Image is up to date."
  else
    curl -X POST -d '{"urls":"matrixs://'$USER':'$PASS'@'$SERVER'/'$ROOMID'","body":"'$IMAGE' auf Host '$HOSTNAME' upgedated.","title":"🐳 Docker Update 🐳"}' \
    -H "Content-Type: application/json" \
    http://$APPRISESERVER/notify/
    echo "Image ist updated to the latest version."
  fi
done