the script to enable the logging agent in any number of compute instances on GCP

log_agent.sh

for name in $(gcloud compute instances list  --format="value(name)")
do
  temp_variable=$(gcloud compute instances list  --format="value(name,zone)" | grep ${name})
  zone=$(echo $temp_variable | awk '{print $2}')
  gcloud compute ssh  ${name} --zone=${zone} --command="curl -sSO https://dl.google.com/cloudagents/add-logging-agent-repo.sh"
  gcloud compute ssh  ${name} --zone=${zone} --command="sudo bash add-logging-agent-repo.sh --also-install --version=1.*.*"
  gcloud compute ssh  ${name} --zone=${zone} --command="sudo service google-fluentd restart"
  echo "logging agent installed for ${name}"
done
echo "logging agent activated successfully"