List every setting upaas reads in the README Configuration table (closes #229)
Check / check (pull_request) Skipped

The table left out UPAAS_MAINTENANCE_MODE, UPAAS_SESSION_SECRET and
UPAAS_CORS_ORIGINS, and several rows gave the wrong default or effect.
Each row now matches internal/config/config.go and the code that uses
the value: UPAAS_PORT is also read and wins over PORT, UPAAS_DATA_DIR
must be absolute for deploys unless UPAAS_HOST_DATA_DIR is set,
UPAAS_HOST_DATA_DIR falls back to UPAAS_DATA_DIR and must be absolute
when set, UPAAS_DEBUG also drops the session cookie's Secure flag,
UPAAS_SENTRY_DSN is not used, and /metrics exists only when
UPAAS_METRICS_USERNAME is set. A sentence under the table names the
standard Docker client variables. TODO.md records the step.

Model: opus-5-5
This commit is contained in:
2026-09-29 02:15:00 +00:00
committed by sneak
parent 194390b61f
commit f01637d62c
2 changed files with 25 additions and 11 deletions
+16 -9
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@@ -192,16 +192,23 @@ This ensures the main branch always contains clean, tested, working code.
Environment variables:
| Variable | Description | Default |
| ------------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------- |
| `PORT` | HTTP listen port | 8080 |
| `UPAAS_DATA_DIR` | Data directory for SQLite and keys | `./data` (local dev only — use absolute path for Docker) |
| `UPAAS_HOST_DATA_DIR` | Host path for `UPAAS_DATA_DIR` (when running in container) | _(none — must be set to an absolute path)_ |
| `UPAAS_DOCKER_HOST` | Docker socket path | unix:///var/run/docker.sock |
| ------------------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------- |
| `PORT` | HTTP listen port. `UPAAS_PORT` is also read and wins when both are set. | 8080 |
| `UPAAS_DATA_DIR` | Directory for the SQLite database, session key, builds and deployment logs. Deploys need it to be an absolute path unless `UPAAS_HOST_DATA_DIR` is set. | `./data` (the Docker image sets `/var/lib/upaas`) |
| `UPAAS_HOST_DATA_DIR` | Host path of `UPAAS_DATA_DIR`, needed when upaas runs in a container so the bind mounts it passes to Docker point at the right host directory. When set, it must be absolute, or upaas refuses to start. | the value of `UPAAS_DATA_DIR` |
| `UPAAS_DOCKER_HOST` | Docker daemon address | unix:///var/run/docker.sock |
| `UPAAS_PLAINTEXT_HTTP` | Set when µPaaS is reached over plain HTTP (no TLS-terminating proxy in front) so CSRF origin checks use `http://`. Leave unset behind a TLS-terminating reverse proxy. | false |
| `UPAAS_DEBUG` | Enable debug logging | false |
| `UPAAS_SENTRY_DSN` | Sentry error reporting DSN | "" |
| `UPAAS_METRICS_USERNAME` | Basic auth for /metrics | "" |
| `UPAAS_METRICS_PASSWORD` | Basic auth for /metrics | "" |
| `UPAAS_DEBUG` | Enable debug logging. Also sends the session cookie without the `Secure` flag. | false |
| `UPAAS_SENTRY_DSN` | Read but not used: upaas sends nothing to Sentry | "" |
| `UPAAS_METRICS_USERNAME` | When set, `/metrics` is served behind basic auth with this username. When unset, there is no `/metrics`. | "" |
| `UPAAS_METRICS_PASSWORD` | Basic auth password for `/metrics` | "" |
| `UPAAS_MAINTENANCE_MODE` | Only shown as `maintenanceMode` in the `/health` response; it blocks nothing | false |
| `UPAAS_SESSION_SECRET` | Key that signs the session and CSRF cookies. When unset, a random key is generated once and kept in `$UPAAS_DATA_DIR/session.key`. | "" |
| `UPAAS_CORS_ORIGINS` | Comma-separated origins allowed to make cross-origin requests with cookies. When unset, no CORS headers are sent. | "" |
The Docker client also reads the standard `DOCKER_API_VERSION`,
`DOCKER_CERT_PATH` and `DOCKER_TLS_VERIFY` variables; `UPAAS_DOCKER_HOST`, which
has a default, always overrides `DOCKER_HOST`.
## Running with Docker
+7
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@@ -20,6 +20,13 @@ regress.
# Completed Steps
- 2026-09-29: The README Configuration table now lists every setting upaas
reads, adding `UPAAS_MAINTENANCE_MODE`, `UPAAS_SESSION_SECRET` and
`UPAAS_CORS_ORIGINS`, and gives the real default and effect of each:
`UPAAS_PORT` wins over `PORT`, `UPAAS_HOST_DATA_DIR` falls back to
`UPAAS_DATA_DIR`, `UPAAS_DEBUG` drops the session cookie's `Secure` flag, and
`UPAAS_SENTRY_DSN` is not used (#229).
- 2026-09-28: The README Configuration table now names `UPAAS_DEBUG`,
`UPAAS_SENTRY_DSN`, `UPAAS_METRICS_USERNAME` and `UPAAS_METRICS_PASSWORD`, the
names upaas actually reads (the unprefixed names it listed were ignored), and