Run azk agent in a script

agent_start.sh

#!/bin/bash

echo "" > /tmp/azk-agent-start.log
./bin/azk agent start --no-daemon > /tmp/azk-agent-start.log 2>&1 &
AGENT_PID="$!"
tail -f /tmp/azk-agent-start.log &
TAIL_PID="$!"
echo "PIDS - agent: ${AGENT_PID}, tail: ${TAIL_PID}";
until tail -1 /tmp/azk-agent-start.log | grep -q 'Agent has been successfully started.'; do
  sleep 2;
  kill -0 ${AGENT_PID} || exit 1;
done

kill -9 $TAIL_PID