153 lines
5.5 KiB
Markdown
153 lines
5.5 KiB
Markdown
# Getting started: facility automation
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Build a small temperature flow, then connect a real sensor when you're ready.
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No hardware required for the first lap.
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## Start Fluksio
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You need Git and Docker with Compose v2 on a 64-bit machine, x86 or ARM. A
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Raspberry Pi 4 or 5 with a 64-bit OS works too. Clone the app repository and
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start its single container:
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```sh
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git clone https://git.stroblme.de/Fluksio/app.git fluksio
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cd fluksio
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docker compose up -d
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docker compose logs fluksio
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```
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The first build takes a few minutes, longer on a Raspberry Pi. The log shows
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the admin account and its password once, on the first start. Open
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[http://localhost:8080](http://localhost:8080) and sign in. Adding Python code
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requires that superuser account.
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Everything runs in that one container on one port: the engine, its API and the
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dashboard. To use another port, change the left side of `ports` in
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`compose.yml`, for example `"9000:8000"`. From another machine on your network,
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open `http://<host-ip>:8080`. Set `FRONTEND_HOST` in `compose.yml` to the
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address you open, since links for wall panels and mails are built from it.
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The image starts minimal. MQTT, InfluxDB, outbound mail and the rest are
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[extras](../reference/configuration.md#image-options). Add the ones you need to
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`EXTRAS` in `compose.yml` and rebuild:
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```yaml
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args:
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EXTRAS: "mqtt,influx"
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```
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```sh
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docker compose up -d --build
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```
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Stop the container with `docker compose down`. Your data stays on the `data`
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volume for the next start.
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## Your first flow
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Open **Flows**, create a flow named `house`, and use **Add node** to add an
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**Inject** node. In its panel:
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- Under **Provides**, add `living_temperature` with type `float`.
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- Under **Settings**, set the `living_temperature` value to `18.0` and
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**Interval** to `5` seconds.
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This gives you a pretend sensor. Add a **Function** node with:
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- **Consumes**: `living_temperature`, type `float`.
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- **Provides**: `heat_wanted`, type `bool`.
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In the code editor, enter:
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```python
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def process(living_temperature):
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return {"heat_wanted": living_temperature < 21.0}
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```
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Message names connect the nodes automatically; there are no wires to draw.
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Save the code with ⌘S / Ctrl-S, then click **Publish** in the dock. Open
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**Flow settings** from the dock's pencil button and make sure **Running** is on.
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Every five seconds, `18.0` should produce `true`. Select the Function and check
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the value under its `heat_wanted` output. Change the Inject value to `22.0`,
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publish again, and check that the result becomes `false`. Click the edge to
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inspect the temperature readings. Your first bit of automation is alive.
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If nothing happens, open **Issues** and **Logs** in the dock. They show missing
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inputs, code errors and connection problems. See [The flow editor](../interface/flow-editor.md)
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for the controls and shortcuts.
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## Connect a real sensor
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Replace the Inject node with an **MQTT** node:
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| Field | Value |
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| **Provides** | `living_temperature`, type `float` |
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| `broker_host` | your broker's hostname or IP, reachable from the engine |
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| `topic` | the sensor's temperature topic |
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Publish the change. The Function now responds to sensor readings instead of
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the test value. If your sensor sends a JSON object such as
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`{"temperature": 18.0}`, set `json_key` to `temperature`.
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An MQTT node with inputs is a sender and publishes to its configured topic;
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one with outputs only is a listener and subscribes. Add a sender only after
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checking the payload format your device expects. A relay may need `ON` and
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`OFF` rather than a boolean.
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!!! tip "Keep the first test on screen"
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Check both warm and cold readings before connecting an actuator. **Pause**
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and **Step** let you inspect queued messages one at a time. A real heating
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controller also needs appropriate limits and hysteresis.
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The MQTT node needs the `mqtt` extra. Fluksio does not run a broker, so point
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the node at your own, such as Mosquitto.
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## Show it on a dashboard
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Create a dashboard and add a gauge bound to `house.living_temperature`.
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Publish the dashboard to see the current reading. Dashboard controls can also
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publish messages, so choose their bindings with care.
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See [Dashboards and panels](../interface/dashboards.md) for widgets and pairing
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a wall tablet.
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For longer-term history, add an **InfluxDB** node that consumes
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`living_temperature`. It needs the `influx` extra. Configure your server URL, organization, bucket, token
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and `writes` mapping. Store the token under **Secrets** and select it in the
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node's credential field. [Node types](../reference/node-types.md#influxdb)
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has the write and query formats.
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Fluksio does not run an InfluxDB server either. Use your own.
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## Run it long term
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The container from `compose.yml` is fit for long-term use. It restarts with
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Docker, and `/data` holds everything it keeps: the database, the flows,
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secrets, artifacts and its Redis. Back up that volume. Compose names it
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`fluksio_data`.
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The container speaks plain HTTP. For access from outside your network, put a
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reverse proxy with HTTPS and WebSocket support in front of it, such as Caddy,
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Traefik or nginx, or [enroll with the portal](../interface/portal.md). A
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Caddyfile for `fluksio.example.com` is one line:
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```text
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fluksio.example.com {
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reverse_proxy localhost:8080
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}
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```
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Set `FRONTEND_HOST` to `https://fluksio.example.com` and `TZ` to your
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timezone, such as `Europe/Berlin`. See [Configuration](../reference/configuration.md)
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for the other settings, which go under `environment` in `compose.yml`.
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To update, pull the repository and rebuild:
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```sh
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git pull
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docker compose up -d --build
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```
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