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Update README.md #43

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Expand Up @@ -31,69 +31,6 @@ The module is configured using a JSON file. `connector.json` represents the conn
}
```

## IoT Edge Deployment

### $edgeAgent

In your `deployment.json` file, you will need to add the module. For more details on modules in IoT Edge, go [here](https://docs.microsoft.com/en-us/azure/iot-edge/module-composition).

The module has persistent state and it is assuming that this is in the `config` folder relative to where the binary is running.
Since this is running in a containerized environment, the state is not persistent between runs. To get this state persistent, you'll
need to configure the deployment to mount a folder on the host into the config folder.

In your `deployment.json` file where you added the module, inside the `HostConfig` property, you should add the volume binding.

```json
"Mounts": [
{
"Type": "volume",
"Source": "raalabs-config-opcua",
"Target": "/app/config",
"RW": false
}
]
```

```json
{
"modulesContent": {
"$edgeAgent": {
"properties.desired.modules.OPCUA": {
"settings": {
"image": "<repo-name>/connectors-opcua:<tag>",
"createOptions": {
"HostConfig": {
"Mounts": [
{
"Type": "volume",
"Source": "raalabs-config-opcua",
"Target": "/app/config",
"RW": false
}]}
},
"type": "docker",
"version": "1.0",
"status": "running",
"restartPolicy": "always"
}
}
}
}
```

### $edgeHub

The routes in edgeHub can be specified like the example below.

```json
{
"$edgeHub": {
"properties.desired.routes.OPCUAToIdentityMapper": "FROM /messages/modules/OPCUA/outputs/output INTO BrokeredEndpoint(\"/modules/IdentityMapper/inputs/events\")",
}
}
```


## Testing using Prosys OPC UA Simulation Server
Prosys offers a free simulation server, which can be downloaded here: <https://downloads.prosysopc.com/opc-ua-simulation-server-downloads.php>.

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