Simple bash script to demo logging to graylog via Gelf / UDP with netcat

logit.sh

#!/usr/bin/env bash

script_execution_id=$(uuidgen)

log_gelf(){
    msg=$1

    nc -w 1 -u logserver.tdlabs.local 12205 <<EOF
{
  "version":"1.1"
, "host":"$(hostname)"
, "short_message":"$msg"
, "full_message":"$msg"
, "level":1
, "_script_execution_id":"$script_execution_id"
}\0
EOF
}

log_gelf "Hello from $0"


echo Do something...
log_gelf "Begin work..."
sleep 1
log_gelf "Step 1 ..."
echo ...
sleep 2
log_gelf "Step 2 ..."
sleep 2 
echo ...
log_gelf "Work finished!"
echo work done!