[RyazanovAlexander]

Summary

Closes T12. The second delivery (v0.1.4) went green on its first attempt. The delivery queue held a manual run while a release was delivering. Rollback and return of both the service and the SPA, using the documented commands, took about half a minute each way. This PR records those results and two findings; it changes documents only.

What was checked live (2026-10-14)

• The cd queue.
  • The Deploy button was pressed during the release's delivery.
  • Its run stayed pending and started one second after the release's last delivery job.
  • It then delivered the same release, and its apply reported 0 added, 0 changed, 0 destroyed.
• The first-delivery checklist on v0.1.4 passed on every item, including the load alert and its channel.
• Rollback and return.
  • Traffic was pinned to the v0.1.3 revision and the v0.1.3 Hosting version was cloned to live; /health and the page both named v0.1.3.
  • Traffic then went back with --to-latest, the v0.1.4 version was cloned back, and both named v0.1.4 again.
• just usage 1d: 31.1 vCPU-seconds, 0.017% of a month's free tier.

Changes

• docs/live/01-first-deploy.md: the report is closed, with both deliveries in UTC, the queue check, rollback and return, the checklist on both releases, costs and findings.
• docs/self-hosting.md:
  • the Hosting releases listing shows each release's type (DEPLOY vs ROLLBACK), takes 20 rows and tolerates releases without a version;
  • it now passes the token in a header from a file descriptor, never as a curl argument;
  • the rollback section records that it was verified.
• RUN.md:
  • T12 is marked done, with its part-2 record and open items;
  • two of T11's open items are closed;
  • new debt Д15: redelivering a release rebuilds its image with a new digest, which moves the tag and uses up cleanup slots a rollback may need.

How it was verified

• All required checks are green.
• Every command quoted in the report and the checklist ran against prod as written.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud