randomayzer/agents/codex/done/2026-10-19-r5-template-coder2-review.md

Result — coder2 review of amended R5 proxy deployment

Base SHA: 8284eb5d006943d42133eb665c99dcbc3133d6a6. Reviewed/result SHA: 8284eb5d006943d42133eb665c99dcbc3133d6a6 (no commit; shared branch remains uncommitted).

Scope

Reviewed the amended R5 assignment, Caddy 2.8 site fragment, HAProxy 3.0 additive snippet, operator runbook, and agents/codex/notes/validate-r5-templates.sh. I did not execute remote VPS/home-server operations, start/stop containers, modify app source/tests, or alter deployment templates.

The runbook now captures before/after responses for every listed current hostname on both HTTP and HTTPS, explicitly requires a concrete local listener address, and stops if a baseline request cannot connect. It requires a root shell for the VPS backup/Docker steps, compares active-container copies with host sources before edits, records and checks single-file mount device/inode, compares the active files with host source after edits, and uses HAProxy -c -V with an accurate success expectation. Existing instructions keep HTTP and TLS backend routes distinct, preserve the HTTP-01 token path, require SNI routing before catch-all, gate reload on actual process/config mechanism, and restore only the two changed configurations before rechecking all sites.

Files changed by this review

• agents/codex/inbox/TASK-2026-10-19-coder2-r5-review.md
• docs/STAGE1_DEPLOYMENT_RUNBOOK.md
• agents/codex/done/2026-10-19-r5-template-coder2-review.md

The Caddy and HAProxy templates were reviewed but not edited.

Verification

Commands I ran:

• python3 extraction of all fenced bash blocks from docs/STAGE1_DEPLOYMENT_RUNBOOK.md, piping each block to bash -n — exit 0; 21 blocks parsed.
• git diff --check -- docs/STAGE1_DEPLOYMENT_RUNBOOK.md deploy/randomayzer.Caddyfile deploy/randomayzer.haproxy.cfg deploy/randomayzer.nginx.conf — exit 0.
• git rev-parse HEAD — 8284eb5d006943d42133eb665c99dcbc3133d6a6.

Coordinator-provided validation evidence (not rerun by me because this assignment forbids container changes): agents/codex/notes/r5-template-validation.log records Caddy Valid configuration, HAProxy Configuration file is valid, and the local syntax validator PASS for Caddy 2.8 / HAProxy 3.0 fake fixtures. The Caddy warnings note formatting and an explicit X-Forwarded-For overwrite; the overwrite is intentional for this trust boundary. These fixture checks do not establish live VPS configuration compatibility.

Findings

• CRITICAL: none.
• HIGH: none.
• MEDIUM: none.
• LOW: none open in my reviewed scope.

This is a scoped runbook review, not the independent R5 security review or live operator acceptance.

UNVERIFIED

• Whether the actual VPS has the expected container names, exact Caddy/HAProxy patch versions, mounts, includes, listener addresses, routing modes, Caddy admin endpoint, and HAProxy graceful reload mechanism.
• Whether all active hostnames and their expected baseline results are correctly enumerated by the operator before change.
• Whether 10.77.0.1 is the confirmed VPS peer, the DNS record points to the VPS, HTTP-01 reaches Caddy unchanged, and the home firewall rules persist safely.
• Certificate issuance, Basic Auth response, domain VK login, and other-site behavior after a real reload.

Remaining blockers / non-blocking tech debt

R5 cannot be accepted until the operator verifies the unknown topology and reload mechanisms, executes the documented backups/validation, and records successful before/after checks for every existing hostname. The parent-run local fixture validator assembles routes before its fixture catch-all to syntax-check them; it does not test ordering in the actual HAProxy config, which must be confirmed during operator inspection and insertion.