The fluksio command¶
Installs the engine and the fluksio command. Python 3.10 or newer, Linux or
macOS.
There is a second, smaller distribution — fluksio-worker — for a machine that
should only run nodes for an engine elsewhere. It has none of the engine in
it. See Remote workers.
fluksio serve¶
Runs the engine.
On the first start it creates an admin account and prints its password once. Nothing else has to be running: no database server, no message broker, no Docker.
| Option | Default | What it does |
|---|---|---|
--data-dir PATH |
~/.fluksio (or $FLUKSIO_HOME) |
where this installation keeps everything |
--host HOST |
127.0.0.1 |
what to bind |
--port PORT |
8000 |
what to listen on |
--log-level LEVEL |
info |
uvicorn's log level |
--admin-email ADDR |
admin@example.com |
the account created on first run |
--admin-password PW |
generated | set it instead of having one generated |
--enroll CODE |
— | pair with a portal as part of coming up |
--portal URL |
— | the portal --enroll redeems at |
--enroll with --portal is the one-command setup: it pairs before the engine
starts, so the connection is dialled as part of coming up rather than needing a
restart. It is skipped if the installation is already enrolled.
One process
fluksio serve holds the flow engine. A second one is a second engine —
duplicated subscriptions, duplicated cron ticks, two webhooks answering the
same path. Run one, and distribute work with
workers instead.
$HOME on a cluster
A login node's home directory is often NFS, where SQLite's write-ahead log
does not work — the database would be locked or corrupt. fluksio serve
warns when it notices; point --data-dir at local disk.
What it prints¶
Created the admin account admin@example.com
password: k3Qm-8vTpLdX
Shown once. Change it from the dashboard.
Fluksio 0.1.0 — data in /home/you/.fluksio
API http://127.0.0.1:8000/api/v1
No portal. Pair this installation with:
fluksio enroll <code> --portal https://hub.example.com
An enrolled installation says which portal it is on instead, and notes that the dashboard is served from there rather than here.
fluksio enroll¶
Pairs an existing installation with a portal.
| Option | What it does |
|---|---|
--portal URL |
required — the portal the code was minted on |
--as EMAIL |
the local account a portal session arrives as |
--data-dir PATH |
which installation, if not the default |
Get the code from the portal under Installations → Add installation. It is
single-use and expires in fifteen minutes. --as matters when the installation
has several superusers — without it, enrolment refuses rather than guessing.
Afterwards, fluksio serve dials the portal as it comes up. See
Accounts and the portal.
fluksio worker¶
Runs nodes for an engine elsewhere. Everything after worker belongs to the
agent's own parser — it is the same program fluksio-worker installs, so the
two are interchangeable:
fluksio worker --url wss://api.example.com/api/v1/workers/attach \
--token "$FLUKSIO_WORKER_TOKEN" --labels gpu
See Remote workers.
What lives in the data directory¶
~/.fluksio/
├── fluksio.db SQLite: users, runs, metrics, observability, agents
├── flows/ a git repository — one directory per flow
│ ├── house/
│ │ ├── flow.json the published structure
│ │ ├── nodes/*.py the published node code
│ │ ├── flow.draft.json unpublished edits, if any
│ │ └── nodes.draft/*.py
│ ├── _lib/ shared node sources
│ ├── _dashboards/ dashboards, drafts and all
│ └── requirements.txt what the Modules screen installs
├── artifacts/ content-addressed bytes, two levels deep
├── user-venv/ the interpreter your node code runs on
├── secrets.enc encrypted credentials, deliberately outside flows/
├── alerts.json alert channels and rules
├── panels.json wall-panel pairings
├── oauth-key.pem signs agent tokens
├── cloud.json the portal enrolment, if there is one
├── secret_key signs sessions and derives the secrets key
└── env optional settings file
Two things follow from this layout and are worth internalising:
flows/ is a real git repository. git log is the history of every change
anyone made to any flow. A run records the commit it ran at, so git show on
that hash is literally the code that produced the number.
Backing up the data directory backs up the installation. Everything else is rebuildable. Copy it while the engine is stopped, or use SQLite's online backup for the database if it is not.
Settings¶
Settings come from the environment, or from an env file in the data
directory. The ones you are most likely to touch:
| Variable | Default | What it does |
|---|---|---|
DATA_DIR |
~/.fluksio via the CLI |
everything below it derives from this |
DATABASE_URL |
SQLite in the data dir | any SQLAlchemy URL |
REDIS_HOST |
unset | flow state in Redis instead of memory; survives a restart |
FRONTEND_HOST |
— | the address used in mails, OAuth metadata and panel links |
ENVIRONMENT |
local |
production closes the interactive API schema |
MCP_ENABLED |
false |
opens the agent endpoint |
SECRET_KEY |
generated once | signs sessions, derives the secrets key |
The full list is in Configuration.