restart all jobs in a nomad cluster

nomad_restart_all_jobs.sh

#!/bin/bash

# 1. Get list of Service and Batch jobs
# We skip the header line (NR>1) and grab the first column (Job ID)
JOBS=$(nomad job status -type service -type batch -short | awk 'NR>1 {print $1}')

# 2. Loop through and restart
for JOB in $JOBS; do
  echo "Triggering rolling restart for: $JOB"
  
  # The restart command respects the update stanza (canaries/health checks)
  nomad job restart "$JOB"
  
  # 3. Safety Sleep
  # Give the scheduler a moment to evaluate placement for the new allocs
  # before triggering the next one.
  sleep 5
done

echo "All restart signals sent."