Author SHA1 Message Date
sneak 9cd50acd85 Add docker-compose.yml for deploying upaas (closes #223)
Check / check (pull_request) Skipped
The compose file builds the image from this repo, mounts the Docker
socket and HOST_DATA_DIR (passed to upaas as UPAAS_HOST_DATA_DIR),
reads settings from .env, and restarts unless stopped. The port is
published on 127.0.0.1 only, for a TLS-terminating proxy in front.
PORT and UPAAS_DATA_DIR are pinned so .env cannot move upaas off the
port mapping, the healthcheck (busybox wget) or the data mount.

upaas now refuses to start when UPAAS_HOST_DATA_DIR is set to a
relative path; when unset it still falls back to the data directory.

The README's plain-HTTP Compose example becomes a short deploy section
that points at the file. .env is added to .dockerignore.

Model: opus-5-5
2026-09-28 09:59:23 +00:00
6 changed files with 24 additions and 61 deletions
+6 -3
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@@ -1,8 +1,11 @@
# .git is sent so that `make build` in the Dockerfile can stamp the commit into
# upaas. List no tracked file here: git would see it as deleted in the build and
# the version would end in -dirty.
.git
.env
bin/
.editorconfig
.vscode/
.idea/
*.test
LICENSE
CONVENTIONS.md
REPO_POLICIES.md
README.md
-1
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@@ -31,7 +31,6 @@ RUN go mod download
COPY . .
RUN make test
# Takes the version from `git describe` on the .git copied in above.
RUN make build
# Runtime stage
+15 -27
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@@ -191,24 +191,17 @@ This ensures the main branch always contains clean, tested, working code.
Environment variables:
| Variable | Description | Default |
| ------------------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------- |
| `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. 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`.
| 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 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 |
| `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 |
| `DEBUG` | Enable debug logging | false |
| `SENTRY_DSN` | Sentry error reporting DSN | "" |
| `METRICS_USERNAME` | Basic auth for /metrics | "" |
| `METRICS_PASSWORD` | Basic auth for /metrics | "" |
## Running with Docker
@@ -226,10 +219,6 @@ This recipe serves plain HTTP, so `UPAAS_PLAINTEXT_HTTP=true` is required for
setup and every other form to pass the CSRF origin check. Behind a
TLS-terminating reverse proxy, drop that line.
The image shows the commit it was built from (the `git describe` output) in the
page footer, the startup log and `/health`. Build it from a git clone: without
the `.git` directory it shows `dev`.
### Deploying with Docker Compose
[`docker-compose.yml`](docker-compose.yml) builds the image from this repo and
@@ -241,11 +230,10 @@ HOST_DATA_DIR=/srv/upaas/data
```
Other settings from [Configuration](#configuration) go in the same file, except
`PORT`, `UPAAS_PORT` and `UPAAS_DATA_DIR`: the compose file sets both port
settings to 8080 and `UPAAS_DATA_DIR` to `/var/lib/upaas`, overriding `.env`, to
match its port mapping, healthcheck and data directory mount. Then run
`docker compose up -d` from the repo root; `docker compose ps` shows the
container as healthy once `/health` answers.
`PORT` and `UPAAS_DATA_DIR`: the compose file sets them to 8080 and
`/var/lib/upaas`, overriding `.env`, to match its port mapping, healthcheck and
data directory mount. Then run `docker compose up -d` from the repo root;
`docker compose ps` shows the container as healthy once `/health` answers.
**Important**: `HOST_DATA_DIR` **must** be an **absolute path** on the host. It
is bind-mounted into the container and passed as `UPAAS_HOST_DATA_DIR` so that
-23
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@@ -20,29 +20,6 @@ regress.
# Completed Steps
- 2026-09-29: An image built from the `Dockerfile` now shows the commit it was
built from (the `git describe` output) in the footer and `/health` instead of
`dev`: `.dockerignore` no longer leaves out `.git`, nor any tracked file,
which git would count as deleted and mark `-dirty`. upaas now also logs its
version at startup; the logger's `Identify()` was never called (#236).
- 2026-09-29: `docker-compose.yml` now sets `UPAAS_PORT` to 8080 as well as
`PORT`, since upaas reads `UPAAS_PORT` first and a `UPAAS_PORT` in `.env` made
it listen away from the port mapping and healthcheck; the README's Compose
section names both (#230).
- 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
the `UPAAS_HOST_DATA_DIR` row refers to `UPAAS_DATA_DIR` (#224).
- 2026-09-28: Added `docker-compose.yml` for deploying upaas: settings from
`.env`, the port published on `127.0.0.1` only for a TLS proxy in front, and a
healthcheck against `/health`; the README's plain-HTTP Compose example is
+1 -3
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@@ -52,8 +52,6 @@ func main() {
handlers.New,
server.New,
),
fx.Invoke(func(log *logger.Logger, _ *server.Server) {
log.Identify()
}),
fx.Invoke(func(*server.Server) {}),
).Run()
}
+2 -4
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@@ -7,11 +7,9 @@ services:
# Every line of .env is passed to upaas as an environment variable.
env_file: .env
environment:
# Override any PORT or UPAAS_PORT in .env, so upaas listens where the
# port mapping and healthcheck below expect it. Both are set because
# upaas reads UPAAS_PORT first.
# Overrides any PORT in .env, so upaas listens where the port mapping
# and healthcheck below expect it.
PORT: "8080"
UPAAS_PORT: "8080"
# Overrides any UPAAS_DATA_DIR in .env, so the database stays on the
# HOST_DATA_DIR mount below instead of inside the container.
UPAAS_DATA_DIR: /var/lib/upaas