Files
metacrypt/deploy/scripts/backup.sh
Kyle Isom 8f77050a84 Implement CA/PKI engine with two-tier X.509 certificate issuance
Add the first concrete engine implementation: a CA (PKI) engine that generates
a self-signed root CA at mount time, issues scoped intermediate CAs ("issuers"),
and signs leaf certificates using configurable profiles (server, client, peer).

Engine framework updates:
- Add CallerInfo struct for auth context in engine requests
- Add config parameter to Engine.Initialize for mount-time configuration
- Export Mount.Engine field; add GetEngine/GetMount on Registry

CA engine (internal/engine/ca/):
- Two-tier PKI: root CA → issuers → leaf certificates
- 10 operations: get-root, get-chain, get-issuer, create/delete/list issuers,
  issue, get-cert, list-certs, renew
- Certificate profiles with user-overridable TTL, key usages, and key algorithm
- Private keys never stored in barrier; zeroized from memory on seal
- Supports ECDSA, RSA, and Ed25519 key types via goutils/certlib/certgen

Server routes:
- Wire up engine mount/request handlers (replace Phase 1 stubs)
- Add public PKI routes (/v1/pki/{mount}/ca, /ca/chain, /issuer/{name})
  for unauthenticated TLS trust bootstrapping

Also includes: ARCHITECTURE.md, deploy config updates, operational tooling.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-14 21:57:52 -07:00

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#!/usr/bin/env bash
#
# Create a timestamped Metacrypt database backup and prune old ones.
#
# Usage: ./backup.sh [retention_days]
# retention_days: number of days to keep backups (default: 30)
#
set -euo pipefail
CONFIG="${METACRYPT_CONFIG:-/srv/metacrypt/metacrypt.toml}"
BACKUP_DIR="${METACRYPT_BACKUP_DIR:-/srv/metacrypt/backups}"
RETENTION_DAYS="${1:-30}"
TIMESTAMP="$(date +%Y%m%d-%H%M%S)"
BACKUP_FILE="${BACKUP_DIR}/metacrypt-${TIMESTAMP}.db"
echo "==> Creating backup: ${BACKUP_FILE}"
metacrypt snapshot --config "$CONFIG" --output "$BACKUP_FILE"
echo "==> Pruning backups older than ${RETENTION_DAYS} days"
find "$BACKUP_DIR" -name 'metacrypt-*.db' -mtime "+${RETENTION_DAYS}" -delete -print
echo "==> Done"
ls -lh "$BACKUP_DIR"/metacrypt-*.db 2>/dev/null | tail -5