vastai-incident-runbook

name	vastai-incident-runbook
description	Execute Vast.ai incident response for GPU instance failures and outages. Use when responding to instance failures, investigating training crashes, or handling spot preemption emergencies. Trigger with phrases like "vastai incident", "vastai outage", "vastai down", "vastai emergency", "vastai instance failed".
allowed-tools	Read, Grep, Bash(vastai:*), Bash(curl:*), Bash(ssh:*)
version	1.11.0
license	MIT
author	Jeremy Longshore <[e-mail]>
tags	["saas","vast-ai","incident-response"]
compatibility	Designed for Claude Code

Vast.ai Incident Runbook

Overview

Rapid incident response procedures for Vast.ai GPU instance failures. Covers triage, mitigation, recovery, and postmortem for common incident types: spot preemption, instance crashes, GPU failures, and billing issues.

Prerequisites

• Vast.ai CLI access
• SSH access to instances (if still running)
• Checkpoint storage accessible (S3/GCS)

Instructions

Triage: Assess Impact (< 2 minutes)

#!/bin/bash
set -euo pipefail
echo "=== INCIDENT TRIAGE ==="
echo "Time: $(date -u)"

# 1. Check all instances
echo -e "\n--- Instance Status ---"
vastai show instances --raw | python3 -c "
import sys, json
for inst in json.load(sys.stdin):
    status = inst.get('actual_status', '?')
    flag = 'ALERT' if status in ('error', 'exited', 'offline') else 'OK'
    print(f'  [{flag}] ID:{inst[\"id\"]} Status:{status} '
          f'GPU:{inst.get(\"gpu_name\",\"?\")} \${inst.get(\"dph_total\",0):.3f}/hr')
"

# 2. Check if affected instance has recent logs
echo -e "\n--- Recent Logs (last 20 lines) ---"
vastai logs ${INSTANCE_ID:-0} --tail 20 2>/dev/null || echo "No logs available"

# 3. Check account balance
echo -e "\n--- Account ---"
vastai show user --raw | python3 -c "import sys,json; u=json.load(sys.stdin); print(f'Balance: \${u.get(\"balance\",0):.2f}')"

Incident Type 1: Spot Preemption

Symptoms: Instance status changes from running to exited or offline without user action.

# 1. Verify preemption (not user error)
vastai show instance $ID --raw | python3 -c "
import sys, json; i=json.load(sys.stdin)
print(f'Status: {i.get(\"actual_status\")}')
print(f'Status msg: {i.get(\"status_msg\", \"none\")}')
"



aws s3  s3://bucket/checkpoints/ --recursive |  -5


vastai search offers  \
  --order dph_total -- 3


vastai create instance  --image  --disk 50