pmon - Process Monitor
Copyright 2014 Matthew Wall

This example illustrates how to implement a service and package it so that it
can be installed by the extension installer.  The pmon service collects memory
usage information about a single process then saves it in its own database.
Data are then displayed using standard weeWX reporting and plotting utilities.


Installation instructions

1) install the extension

wee_extension --install=/home/weewx/examples/pmon

2) restart weeWX

sudo /etc/init.d/weewx stop
sudo /etc/init.d/weewx start


This will result in a skin called pmon with a single web page that illustrates
how to use the monitoring data.  See comments in pmon.py for customization
options.


Manual installation instructions

1) copy the pmon service file to the weeWX user directory

cp /home/weewx/examples/pmon/bin/pmon.py /home/weewx/bin/user

2) copy files to the weeWX skins directory

cp -rp skins/pmon /home/weewx/skins

3) in the weeWX configuration file, add a new [ProcessMonitor] stanza

[ProcessMonitor]
    data_binding = pmon_binding
    process = weewxd

4) in the weeWX configuration file, add a data binding

[DataBindings]
    ...
    [[pmon_binding]]
        database = pmon_sqlite
        table_name = archive
        manager = weewx.manager.DaySummaryManager
        schema = user.pmon.schema

5) in the weeWX configuration file, add a database

[Databases]
    ...
    [[pmon_sqlite]]
        database_name = pmon.sdb
        driver = weedb.sqlite

6) in the weeWX configuration file, add a report

[StdReport]
    ...
    [[pmon]]
        skin = pmon
        HTML_ROOT = pmon

7) in the weeWX configuration file, add the pmon service

[Engine]
    [[Services]]
        process_services = ..., user.pmon.ProcessMonitor

8) restart weeWX

sudo /etc/init.d/weewx stop
sudo /etc/init.d/weewx start
