Refuse invalid settings at start, health check follows PORT (closes #31)

A set but invalid PORT (anything but plain digits from 1 to 65535) or a relative XDG_DATA_HOME now stops the start before the database opens; before, a bad PORT left the daemon running without HTTP. entrypoint.sh refuses a MALLOC_ARENA_MAX that is not a positive whole number, since glibc ignores a bad one silently. The HEALTHCHECK probes the port PORT names, 8080 when unset. PORT is now read in internal/config, so server.New takes the config. The README gives the real Linux state directory, lists XDG_DATA_HOME, and adds "Running under upaas": port, volume, environment, the 5g memory limit and the health check. Unverified: the 5g memory limit could not be exercised on the build host. Model: opus-5-5
2026-09-28 20:08:42 +02:00
parent df9e23d503
commit f2a9e90625
9 changed files with 152 additions and 17 deletions
@@ -23,6 +23,10 @@ runs make check on main.

 # Completed Steps

+- 2026-09-28: ready to run under upaas: a set but invalid `PORT`,
+  `XDG_DATA_HOME` or `MALLOC_ARENA_MAX` stops the start, the health
+  check follows `PORT`, README "Running under upaas" section (closes
+  #31)
 - 2026-09-22: realtime in-memory database statistics: counts seeded at
  startup and adjusted on every write, oldest/newest route timestamps via
  index-end lookups; `/api/v1/stats` no longer scans the tables (closes