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9a2352e61c954745dc0946c057600578dd96b8e2
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3 Commits

Author SHA1 Message Date
glm-5.1
9a2352e61c Resolve 5 open questions, add 7 ADRs for previously undocumented decisions 
Resolve open questions:
- OQ-01: Restrict cipher suites to match nginx scope (4 ECDHE-AES-GCM
  suites for TLS 1.2 + all TLS 1.3 suites) — ADR-012
- OQ-03: Health check on separate local port (default 9900, localhost
  only) — ADR-013
- OQ-04: Add Unix domain socket admin API for config reload alongside
  SIGHUP, with structured success/failure responses — ADR-014
- OQ-06: Per-site upstream timeouts with defaults (5s connect, 60s
  request), overridable in SiteConfig — ADR-015

Document previously undocumented decisions flagged by architecture review:
- ADR-016: Explicit bind address requirement (reject 0.0.0.0)
- ADR-017: Upstream connection defaults (HTTP/1.1, no redirects, pooling)
- ADR-018: 100 MB body size limit (matches nginx, Gitea compatibility)

OQ-07 (per-site TLS overrides) remains open for future consideration.

Spec updates:
- config.md: add health_check_port, admin_socket_path, per-site timeout
  fields, update TOML example and validation rules
- proxy.md: reference ADR-015/017/018 for timeouts, connection defaults,
  and body limit decisions
- tls.md: replace OQ-01 cipher suite section with ADR-012 decision
- operations.md: add local health check port section, admin socket reload
- overview.md: update Phase 1 scope with new features, add ADR references
- open-questions.md: resolve OQ-01/03/04/06, keep OQ-07 open
 2026-06-11 09:07:36 +00:00
glm-5.1
7efc142406 Expand architecture: multi-site Phase 1, multi-domain TLS, fix review issues 
Promote multi-site support from Phase 2 to Phase 1 (ADR-010): the proxy
must support git.alk.dev and alk.dev from initial release. Add multi-domain
TLS configuration (ADR-011): acme_domains array replaces acme_domain string,
single SAN certificate via rustls-acme.

Key changes:
- ADR-010: Multi-site in Phase 1 — avoids config format migration later
- ADR-011: Multi-domain TLS — single SAN cert, acme_domains Vec<String>
- ADR-002: Updated rationale for multi-site (one upstream per domain)
- overview.md: Phase 1 now includes multi-site, alk.dev pass-through,
  dual licensing (MIT OR Apache-2.0), real IP removed
- config.md: acme_domain → acme_domains, TOML example shows both sites,
  validation adds unique host check, real IP replaced with 203.0.113.10
- tls.md: Multi-domain SNI section moved from Future to current, manual
  mode uses ResolvesServerCert for SNI mapping, TOML header fixed
- proxy.md: Updated for multi-site, removed single-domain language
- operations.md: RFC 5737 documentation IPs, clarified rate limit eviction
  semantics (distinct scan interval vs eviction age)
- open-questions.md: OQ-05 resolved (single bind_addr sufficient), new
  OQ-07 (per-site TLS overrides)

Review fixes:
- acme_domains (plural) consistently used across all docs and diagram
- ADR-011 clearly scopes acme_domain as previous design
- Inline decision rationale extracted: tls.md hot-reload → ADR-004 ref,
  config.md static/dynamic → ADR-008 ref
- TOML section headers consistent (server.tls)
 2026-06-11 08:50:03 +00:00
glm-5.1
8ee6284b62 Add architecture specification for Rust/axum reverse proxy 
Phase 1 architecture docs covering proxy handler, TLS termination (ACME +
manual), TOML config with static/dynamic split (ArcSwap), and operations
(rate limiting, logging, health check, systemd, graceful shutdown).

Nine ADRs documenting key decisions: Rust/axum, custom proxy handler,
TOML config, rustls-acme for cert management, tokio-rustls direct,
token bucket rate limiting, custom log format for fail2ban,
static/dynamic config split, and signal handling strategy.

Includes threat landscape research documenting the nginx CVEs motivating
this project.
 2026-06-11 07:25:50 +00:00