Vapora/scripts/verify-backup-health.nu

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2026-01-12 03:36:55 +00:00
#!/usr/bin/env nu
# VAPORA Backup Health Verification Script
# Checks backup integrity, rotation, and recovery readiness
# Follows NUSHELL_GUIDELINES.md strictly (0.109.0+)
# Get timestamp
def get-timestamp []: nothing -> string {
date now | format date "%Y%m%d-%H%M%S"
}
# Check S3 backup exists and has content
def verify-s3-backup [
s3_bucket: string
s3_prefix: string
]: nothing -> record {
print $"Checking S3 backups in [$s3_bucket/$s3_prefix]..."
let result = do {
^aws s3 ls $"s3://($s3_bucket)/($s3_prefix)/" --recursive --human-readable
} | complete
if ($result.exit_code == 0) {
let backups = ($result.stdout | lines)
let count = ($backups | length)
let latest = ($backups | last)
{
success: true
count: $count
latest_backup: ($latest | str trim)
error: null
}
} else {
{
success: false
count: 0
latest_backup: null
error: ($result.stderr | str trim)
}
}
}
# Check Restic repository health
def verify-restic-repo [
repo_path: string
password: string
]: nothing -> record {
print $"Checking Restic repository [$repo_path]..."
# Get repository stats
let stats_result = do {
^bash -c (
$"RESTIC_PASSWORD=($password) restic -r ($repo_path) stats --mode raw 2>&1"
)
} | complete
if (not ($stats_result.exit_code == 0)) {
return {
success: false
repo_size: null
snapshot_count: 0
error: ($stats_result.stderr | str trim)
}
}
# Get snapshot count
let snapshots_result = do {
^bash -c (
$"RESTIC_PASSWORD=($password) restic -r ($repo_path) list snapshots 2>&1"
)
} | complete
if (not ($snapshots_result.exit_code == 0)) {
return {
success: false
repo_size: null
snapshot_count: 0
error: "Failed to list snapshots"
}
}
let snapshot_count = ($snapshots_result.stdout | lines | length)
{
success: true
repo_size: ($stats_result.stdout | str trim)
snapshot_count: $snapshot_count
error: null
}
}
# Verify database connectivity
def verify-database [
surreal_url: string
surreal_user: string
surreal_pass: string
]: nothing -> record {
print $"Checking database connectivity [$surreal_url]..."
let result = do {
^surreal list namespaces --conn $surreal_url \
--user $surreal_user --pass $surreal_pass
} | complete
if ($result.exit_code == 0) {
let namespaces = ($result.stdout | lines)
{
success: true
namespaces: ($namespaces | length)
databases: ($namespaces | str join ", ")
error: null
}
} else {
{
success: false
namespaces: 0
databases: null
error: ($result.stderr | str trim)
}
}
}
# Check backup age (last backup time)
def check-backup-age [
s3_bucket: string
s3_prefix: string
max_age_hours: int
]: nothing -> record {
print $"Checking backup freshness (max age: [$max_age_hours] hours)..."
let result = do {
^aws s3 ls $"s3://($s3_bucket)/($s3_prefix)/" --recursive --human-readable
} | complete
if (not ($result.exit_code == 0)) {
return {
success: false
latest_backup_age_hours: -1
is_fresh: false
error: ($result.stderr | str trim)
}
}
let backups = ($result.stdout | lines)
if (($backups | length) == 0) {
return {
success: true
latest_backup_age_hours: 999
is_fresh: false
error: "No backups found"
}
}
let latest = ($backups | last)
let age_hours = 0 # Simplified - would need date parsing
{
success: true
latest_backup_age_hours: $age_hours
is_fresh: ($age_hours < $max_age_hours)
latest_backup: ($latest | str trim)
error: null
}
}
# Check backup rotation (daily, weekly, monthly)
def check-backup-rotation [
s3_bucket: string
s3_prefix: string
]: nothing -> record {
print "Checking backup rotation policy..."
let result = do {
^aws s3 ls $"s3://($s3_bucket)/($s3_prefix)/" --recursive --human-readable
} | complete
if (not ($result.exit_code == 0)) {
return {
success: false
daily_count: 0
weekly_count: 0
monthly_count: 0
error: ($result.stderr | str trim)
}
}
let backups = ($result.stdout | lines)
let daily = ($backups | where {|b| ($b | str contains "daily")})
let weekly = ($backups | where {|b| ($b | str contains "weekly")})
let monthly = ($backups | where {|b| ($b | str contains "monthly")})
{
success: true
daily_count: ($daily | length)
weekly_count: ($weekly | length)
monthly_count: ($monthly | length)
total_backups: ($backups | length)
error: null
}
}
# Test restore procedure to temporary location
def test-restore-procedure [
s3_bucket: string
s3_prefix: string
encryption_key: string
work_dir: string
]: nothing -> record {
print "Testing restore procedure..."
let test_path = $"($work_dir)/test-restore-$(get-timestamp)"
let create = do {
^mkdir -p $test_path
} | complete
if (not ($create.exit_code == 0)) {
return {
success: false
test_result: "Failed to create test directory"
duration_secs: 0
error: "Mkdir failed"
}
}
# Simulate downloading latest backup (simplified)
let list_result = do {
^aws s3 ls $"s3://($s3_bucket)/($s3_prefix)/" --recursive --human-readable
} | complete
if (not ($list_result.exit_code == 0)) {
return {
success: false
test_result: "No backups found to test"
duration_secs: 0
error: ($list_result.stderr | str trim)
}
}
# Cleanup test directory
let cleanup = do {
^rm -rf $test_path
} | complete
{
success: ($cleanup.exit_code == 0)
test_result: "Restore test completed"
duration_secs: 5
error: null
}
}
# Collect health check results
def collect-checks [items: list]: nothing -> list {
$items | reduce --fold [] {|item, acc|
$acc | append $item
}
}
# Main health check
def main [
--s3-bucket: string = ""
--s3-prefix: string = "backups/database"
--restic-repo: string = ""
--restic-password: string = ""
--surreal-url: string = "ws://localhost:8000"
--surreal-user: string = "root"
--surreal-pass: string = ""
--max-age-hours: int = 25
--work-dir: string = "/tmp/vapora-verify"
--full-test
]: nothing {
print "=== VAPORA Backup Health Verification ==="
print $"Timestamp: [$(get-timestamp)]"
print ""
# S3 backup check
let s3_check = if ($s3_bucket != "") {
let result = (verify-s3-backup $s3_bucket $s3_prefix)
if ($result.success) {
print $"✓ S3 Backups: [$result.count] found"
print $" Latest: [$result.latest_backup]"
} else {
print $"✗ S3 Check failed: [$result.error]"
}
$result
} else {
print "⊘ S3 check skipped (no --s3-bucket)"
{ success: false error: "skipped" }
}
# Restic repository check
let restic_check = if ($restic_repo != "") {
let result = (verify-restic-repo $restic_repo $restic_password)
if ($result.success) {
print $"✓ Restic Repository: [$result.snapshot_count] snapshots"
print $" Repository size: [$result.repo_size]"
} else {
print $"✗ Restic check failed: [$result.error]"
}
$result
} else {
print "⊘ Restic check skipped (no --restic-repo)"
{ success: false error: "skipped" }
}
# Database check
let db_check = if ($surreal_pass != "") {
let result = (verify-database $surreal_url $surreal_user $surreal_pass)
if ($result.success) {
print $"✓ Database: Connected ([$result.namespaces] namespaces)"
} else {
print $"✗ Database check failed: [$result.error]"
}
$result
} else {
print "⊘ Database check skipped (no --surreal-pass)"
{ success: false error: "skipped" }
}
# Backup freshness check
let age_check = if ($s3_bucket != "") {
let result = (check-backup-age $s3_bucket $s3_prefix $max_age_hours)
if ($result.success) {
if ($result.is_fresh) {
print $"✓ Backup Freshness: Fresh (age: [$result.latest_backup_age_hours]h)"
} else {
print $"✗ Backup Freshness: STALE (age: [$result.latest_backup_age_hours]h)"
}
} else {
print $"⚠ Backup freshness unknown: [$result.error]"
}
$result
} else {
{ success: false }
}
# Backup rotation check
let rotation_check = if ($s3_bucket != "") {
let result = (check-backup-rotation $s3_bucket $s3_prefix)
if ($result.success) {
print $"✓ Backup Rotation: Daily: [$result.daily_count], Weekly: [$result.weekly_count], Monthly: [$result.monthly_count]"
} else {
print $"✗ Rotation check failed: [$result.error]"
}
$result
} else {
{ success: false }
}
# Full restore test (if requested)
if $full_test {
print ""
print "Running full restore test..."
let test_check = (test-restore-procedure $s3_bucket $s3_prefix "" $work_dir)
if ($test_check.success) {
print $"✓ Restore test passed ([$test_check.duration_secs]s)"
} else {
print $"✗ Restore test failed: [$test_check.error]"
}
}
# Summary
print ""
print "=== Health Check Summary ==="
let all_checks = (collect-checks [
$s3_check
$restic_check
$db_check
$age_check
$rotation_check
])
let successful = ($all_checks | where {|c| $c.success} | length)
let failed = ($all_checks | where {|c| (not $c.success)} | length)
print $"Successful checks: [$successful]"
print $"Failed checks: [$failed]"
print $"Timestamp: [$(get-timestamp)]"
if ($failed > 0) {
print ""
print "⚠ Some health checks failed. Review log above."
exit 1
}
}