add some doc, fix the version string

Author: C8Y-Mario

README.md

@@ -1,34 +1,100 @@
 # modbus-plugin
 
-# Requirements
+## Requirements
+* Ubuntu >= 22.04 or Debian >= 11.0
 * Python >= 3.9
+* pip
 
-# Setup (without deb package)
+## Build
+
+### Python Wheel
+* cd to the source root
+* install the build helper via `pip install build` and do a `python -m build`
+
+### Debian package
+
+Make sure to run the following on a build environment that matches the target. 
+If you are using a WSL container, make sure that the build directory is not on a Windows path (e.g. /mnt/c),
+as Windows filesystem won't handle the permissions correctly (sets +x on everything)
+
+* do the Python Wheel build: install the build helper via `pip install build` and do a `python -m build`
+* install all dependencies `sudo apt-get install build-essential debhelper devscripts equivs dh-virtualenv`
+* cd into the source root folder (the one that includes the debian directory)
+* run `dpkg-buildpackage -us -uc -b` In case you are running into problems with virtualenv, try a `sudo pip install virtualenv` first
+
+## Deployment
+
+### As Python script (for dev only)
 * copy modbus-plugin folder to target device
 * ssh into device and go to the plugin folder
 * create the virtualenv with `python -m venv venv`
 * activate venv environment with `source ./venv/bin/activate`
 * install all dependencies with `python -m pip install -r requirements.txt`
-* run the reader with `python c8y_ModbusListener/reader.py -c ./config`
+* run the reader with `python modbus_reader/reader.py -c ./config`
+
+### As deb file
+Run `sudo dpkg -i te-modbus-plugin-<version>-<arch>.deb`
+
+
+
+## Logs and systemd service
+Executing the deb installer will place the config files into /etc/tedege/plugins/modbus/.
+If systemd is installed, it will run the service as part of the post-installation routine.
+
+Check the status of the systemd service with `sudo systemctl status te-modbus-plugin.service`
+When running as a service, the default log output goes to /var/log/te-modbus-plugin/modbus.log.
 
-# Config files
+
+## Config files
 
 All config files are expected to be in the /etc/tedge/plugins/modbus folder. 
 As alternative the directory can be based with -c or --configdir to the python script like so:
-`python c8y_ModbusListener/reader.py --configdir <configfolder>`
+`python modbus_reader/reader.py --configdir <configfolder>`
 
 
-## modbus.toml
+### modbus.toml
 Includes the basic configuration for the plugin: 
 * poll rate
 * connection to thin-edge (MQTT broker needs to match the one of tedge)
 
-## devices.toml
+### devices.toml
 
 Defines the existing child devices and their protocol for polling the Modbus folder.
 The structure is based on the Cloud Fieldbus protocols.
+Add a `[[device]]` entry for each different IP address
 
-## watchdog
-The watchdog will take care of restarting the MQTT and Modbus connection when either
+### Updating the config files
+A watchdog observer will take care of restarting the MQTT and Modbus connection when either
 devices.toml or modbus.toml changes. So there should be no need to manually restart the 
-python script.
+python script / service.
+
+
+## Cumulocity Integration
+### Installation via Software Management
+
+Upload the deb package to the Cumulocity Software Repository. The name **must** be *te-modbus-plugin* and
+the version **must** match the version in the *.deb package name (e.g. 1.0.0). The rest of the fields can be set as necessary.
+Go to the Software tab of the target device and select the package for installation. After the operation is successfull the plugin will start automatically on the device.
+![Image](./doc/sm.png)
+### Log file access
+
+
+For integration with the C8Y log plugin add the following line to the /etc/tedge/c8y/c8y-log-plugin.toml
+   
+    { type = "modbus", path = "/var/log/te-modbus-plugin/modbus.log" }
+
+![Image](./doc/log.png)
+
+### Config management
+Both config files can either be updated in-place (i.e. simply editing with an editor) or
+by using the c8y-configuration plugin. Add the following lines to the c8y-configuration-plugin.toml
+to be able to access them from the Cumulocity Configuration UI:
+
+    {path = '/etc/tedge/plugins/modbus/modbus.toml', type='modbus'},
+    {path = '/etc/tedge/plugins/modbus/devices.toml', type='modbus-devices'}
+
+To replace the files with a version from the C8Y Configuration Repository you have to download a copy, 
+edit it and upload it to the repository. The device type **must** be set to *thin-edge.io* and the config type must match 
+the definition in your c8y-configuration-plugin.toml. I.e either *modbus* (for modbus.toml) or *modbus-devices* for (devices.toml) 
+
+![Image](./doc/cm.png)

debian/changelog

@@ -1,4 +1,4 @@
-te-modbus-plugin (0.1) UNRELEASED; urgency=medium
+te-modbus-plugin (0.1.0) UNRELEASED; urgency=medium
 
   * Modbus Plugin for thin-edge. Initial release.