SysstatWeb

This is a very basic webapp to dynamically generate graphs from stored Sysstat data.

To run this app, the system will need Python3, Flask, and some sort of uWSGI gateway (nginx).

Sysstat Config

See the official Sysstat docs for the most up to date and correct install information.

For Debian based systems, the package can be installed from the software repository:

sudo apt install sysstat

Then, data collection can be enabled in /etc/default/sysstat

ENABLED="true"

Finally, the service can be restarted and enabled:

sudo systemctl restart sysstat
sudo systemctl enable  sysstat

Scheduling is traditionally done using a cron file such as /etc/cron.d/sysstat, but some contemporary distros use systemd timers. Changing the time range to a lower sample interval is recommended, but may use more storage.

Metrics that are collected are stored in /var/log/sa for most systems.

SysstatWeb Config

To use the application, install Flask:

sudo pip install flask

The app can be cloned to a directory such as /opt/ and installed as a service using systemd.

First, a basic service account is needed:

sudo useradd --system flask

Then the systemd unit can be added to the system:

[Unit]
Description="Sysstat Graph Webapp"
After=network.target

[Service]
User=flask
WorkingDirectory=/opt/sysstatweb
ExecStart=/opt/sysstatweb/app.py
Restart=always

[Install]
WantedBy=multi-user.target

Finally, the service can be loaded and started:

sudo systemctl daemon-reload
sudo systemctl enable --now sysstatweb.service