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fix: harden Railway startup persistence and readiness - #224

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Coding-Dev-Tools merged 14 commits into
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codex/railway-deployment-hardening-20260916
Sep 23, 2026
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Coding-Dev-Tools merged 14 commits into
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codex/railway-deployment-hardening-20260916

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@Coding-Dev-Tools Coding-Dev-Tools commented Sep 16, 2026

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Railway cold starts and restored volumes could leave the dashboard unable to persist settings or open its database. Startup now initializes trusted settings at /data/.engraphis/config.env, validates ownership and path boundaries, and preserves the port and readiness contract across restarts.

  • Reject relative paths, parent traversal, symlinked components, non-regular files, and hard-linked config files or ownership markers before privileged file mutations. Revalidate trusted settings before final ownership changes.
  • Create every missing private directory component with app ownership. Restrict state to 0700 and settings to 0600; rootless startup provisions its settings before the actual configuration loader imports them.
  • Keep the ownership marker on /data, scan for restored descendants with incorrect ownership, and repair without following external symlinks. Correctly owned volumes avoid recursive ownership writes but still require a metadata scan. External state and config parents must be provisioned for the app UID; external trees are not recursively repaired.
  • Make Railway's IPv4 bind and entrypoint contract explicit, and include required deployment license assets in the Docker context.

Validation on c830f9e7e5100f595dc049838f2863435884259a: all 29 GitHub checks passed, including the Docker health smoke and offline Python matrix. Nineteen isolated root startup cases, eight POSIX regression cases, and separate actual UID 10001 startup/restart checks passed. The branch merges cleanly with current main and PR #225.

The shared startup implementation and regressions are identical in PR #225. No production deployment is included.

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Coding-Dev-Tools merged commit fa107d4 into main Sep 23, 2026
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