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Installing Sentinel (V1.2) on Linux
An all-powerful toolset for Absolute.
Sentinel is an autonomous agent for persisting, processing and automating Absolute V12.2 governance objects and tasks, and for expanded functions in the upcoming Absolute releases.
Sentinel is implemented as a Python application that binds to a local version 12.2 Absoluted instance on each Absolute Masternode.
This guide covers installing Sentinel onto an existing V12.2.x Masternode in Ubuntu 14.04 / 16.04.
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
sudo apt install virtualenv
Go to your prefered installation folder. Generally /home/user/ or /root/ if your are root.
Clone the Sentinel repo and install Python dependencies.
cd $HOME/.absolutecore
git clone https://github.com/absolute-community/sentinel.git && cd sentinel && virtualenv ./venv && ./venv/bin/pip install -r requirements.txt
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 $HOME/.absolutecore/sentinel && ./venv/bin/python bin/sentinel.py >/dev/null 2>&1
If you want to print the current path use pwd command.
Test the config by runnings all tests from the sentinel folder you cloned into
cd $HOME/.absolutecore/sentinel
./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;
remove the 1st char # and replace /alternativepath/ there:
absolute_conf=/alternativepath/absolute.conf
To view debug output, set the SENTINEL_DEBUG environment variable to anything non-zero, then run the script manually:
cd $HOME/.absolutecore/sentinel
SENTINEL_DEBUG=1 ./venv/bin/python bin/sentinel.py
Released under the MIT license, under the same terms as Absolute itself. See LICENSE for more info.