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KNELContracts/docs/branch-previews.md
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v0.1: Grav-only repo + CI lint + branch-preview architecture
Pipeline fully retired: src/, contract-inputs/, service-csv/ deleted;
their content is fully superseded by grav/user/pages (verified section
by section). New: gitea actions lint workflow (markdownlint + typos
blocking, vale prose + lychee links advisory), lint configs, README
documents the branch/PR model, docs/branch-previews.md is the LAMP +
wildcard + Git Sync runbook for <branch>.contract.knownelement.com.
Blocking checks verified green before push (pinned containers).

Ticket: https://projects.knownelement.com/issues/924
2026-09-09 12:46:07 -05:00

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Markdown

# Branch preview sites — `<branch>.contract.knownelement.com`
Goal: every branch of this repo gets a browsable Grav rendering of the
contract at `https://<branch>.contract.knownelement.com`, with
`https://contract.knownelement.com` serving the release branch. Reviewers
get a URL instead of a diff.
## Architecture
One Cloudron **LAMP** app with a wildcard alias:
- App location: `contract.knownelement.com`
- Wildcard alias: `*.contract.knownelement.com` (Cloudron provisions the
wildcard Let's Encrypt certificate via DNS-01)
- Apache maps the `Host` header to a per-branch docroot under
`/app/data/branches/<host>/` (mass virtual hosting via mod_rewrite)
- The root docroot `/app/data/public/` serves the release site
Each branch site is a **complete, standalone Grav install** whose
`user/pages` and `user/themes` come from the repo branch via the Grav
**Git Sync** plugin:
- Per-site Git Sync config: same repository, per-site branch
- Auto-pull on a cron schedule (every 5 minutes is plenty); gitea webhooks
can replace cron later
- Theme config (including e-sign endpoints) lives in the repo, so branch
sites inherit the right e-sign wiring automatically
## Branch name → hostname
Branch names are not DNS-safe in general, so the mapping is mechanical:
lowercase, every run of characters outside `[a-z0-9-]` becomes `-`.
Examples: `feature/grav-native-ci``feature-grav-native-ci`;
`v0.1``v0-1`. The wildcard covers every mapping — no per-branch DNS or
certificate work.
## Provisioning a new branch site (one-time per branch)
1. `composer create-project getgrav/grav /app/data/branches/<host>`
2. Copy `user/pages` and `user/themes/knel-contract` from the branch
checkout into the new install
3. Install + configure the Git Sync plugin (repository URL, the branch,
cron pull)
4. Reload Apache — the rewrite rule picks the site up by Host header
Deprovisioning is the reverse: delete the site directory when the branch
is deleted. Provisioning/deprovisioning is agent work (docker exec into
the LAMP app container is a permitted access path); the procedure is
scriptable and should be automated in CI once proven by hand.
## Migration runbook (production change — GLPI CR required first)
1. File the GLPI CR + Uptime Kuma maintenance window (evening, low traffic)
2. Back up the current Grav app (app id 757c60ba) appdata off-box
3. Uninstall the Grav app; install the LAMP app at the same location and
add the `*.contract.knownelement.com` wildcard alias
4. Restore the Grav content as the release site in `/app/data/public/`
(full Grav install; Git Sync → release branch)
5. Lay down the Apache branch-rewrite config in
`/app/data/apache-app.conf`
6. Smoke test: home/services/terms/sign/execution all 200 on the root
host; e-sign flow still POSTs through
apigw.knownelement.com/contract-sign (unchanged — endpoints are in the
theme config); provision one test branch site and confirm
`<host>.contract.knownelement.com` serves that branch
7. Post verification evidence on the CR and the Redmine ticket
Rollback: reinstall the Grav app at the same location from the backup taken
in step 2.