An all-powerful toolset for Absolute.
An automated governance helper for Absolute Masternodes.
Sentinel is an autonomous agent for persisting, processing and automating Absolute governance objects and tasks. It is a Python application which runs alongside the AbsoluteCore instance on each Absolute Masternode.
These instructions cover installing Sentinel on Ubuntu 16.04 / 18.04.
Make sure Python version 2.7.x or above is installed:
python --version
Update system packages and ensure virtualenv is installed:
$ sudo apt-get update
$ sudo apt-get -y install python-virtualenv
Make sure the local AbsoluteCore daemon running is at least version 12.1 (120100)
$ absolute-cli getinfo | grep version
Clone the Sentinel repo and install Python dependencies.
$ git clone https://github.com/absolute-community/sentinel.git && cd sentinel
$ virtualenv ./venv
$ ./venv/bin/pip install -r requirements.txt
Sentinel is "used" as a script called from cron every minute.
Set up a crontab entry to call Sentinel every minute:
$ crontab -e
In the crontab editor, add the lines below, replacing '/path/to/sentinel' to the path where you cloned sentinel to:
* * * * * cd /path/to/sentinel && ./venv/bin/python bin/sentinel.py >/dev/null 2>&1
Test the config by running tests:
$ ./venv/bin/py.test ./test
With all tests passing and crontab setup, Sentinel will stay in sync with absoluted and the installation is complete
An alternative (non-default) path to the absolute.conf file can be specified in sentinel.conf:
absolute_conf=/path/to/absolute.conf
To view debug output, set the SENTINEL_DEBUG environment variable to anything non-zero, then run the script manually:
$ SENTINEL_DEBUG=1 ./venv/bin/python bin/sentinel.py
Many thanks to @nmarley
Specifically:
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To contribute a patch, the workflow is as follows:
- Fork repository
- Create topic branch
- Commit patches
In general commits should be atomic and diffs should be easy to read. For this reason do not mix any formatting fixes or code moves with actual code changes.
Commit messages should be verbose by default, consisting of a short subject line (50 chars max), a blank line and detailed explanatory text as separate paragraph(s); unless the title alone is self-explanatory (like "Corrected typo in main.cpp") then a single title line is sufficient. Commit messages should be helpful to people reading your code in the future, so explain the reasoning for your decisions. Further explanation here.
Released under the MIT license, under the same terms as AbsoluteCore itself. See LICENSE for more info.