# DigitalDownConverter — Services

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The pipeline runs as a single Docker container managed by the EDD Master Controller. It does
not start automatically at provision time; the Master Controller starts it on demand when an
observation requires it.

## Container

| Property | Value |
|---|---|
| Container name | `ddc_processor` |
| Docker image | `edd_dbbc` |
| Start command | `edd_ddc_processor --host=<edd_subnet> --port=<bind_port>` |
| Registered with Master Controller | Yes (`register_as_pipeline: True`) |
| Restart policy | Controlled by Master Controller |

## Sidecar Services

| Sidecar | Purpose |
|---|---|
| Redis | Stores pipeline index assignment across multiple pipeline instances |
| InfluxDB | Receives time-series metrics from the pipeline |

## Grafana Dashboards

The following dashboard panels are installed at provision time:

| Panel | Contents |
|---|---|
| `pipeline_status.json` | KATCP state machine state, error indicators |
| `mkrecv_status.json` | SPEAD2 capture statistics (heap rates, drop rates) |
| `dada_monitor.json` | PSRDADA ring buffer fill levels |

## Ports

| Port | Protocol | Direction | Description |
|---|---|---|---|
| `bind_port` (default 0) | TCP | inbound | KATCP control |
| configured via `input_data_streams` | UDP multicast | inbound | SPEAD2 input |
| configured via `output_data_streams` | UDP multicast | outbound | SPEAD2 output |
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