piframe/docs/monit.md

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# System Monitoring
The below commands will setup ```monit``` to track key elements of the PiFrame hardware and software. ```monit``` is a very light weight monitoring solution and is used to ensure key parts of the system are in a reasonable state and working.
``` sh
apt install monit
nano -w /etc/monit/monitrc
set httpd port 2812 and
use address 0.0.0.0
allow admin:monit
set mailserver domain.tld port 587
username "piframe@domain.tld" password "apassword"
using tls
cat > /etc/monit/conf.d/rootfs <<EOF
check filesystem rootfs with path /
if space usage > 80% then alert
EOF
cat > /etc/monit/conf.d/tankfs <<EOF
check filesystem tankfs with path /tank
if space usage > 80% then alert
EOF
2020-08-28 22:46:13 +00:00
cat > /etc/monit/conf.d/pf-ui <<EOF
check process pf-ui matching /usr/local/bin/pf-ui
start program = "/usr/bin/systemctl start pf-ui"
stop program = "/usr/bin/systemctl stop pf-ui"
if does not exist then alert
if does not exist for 2 cycles then restart
EOF
systemctl enable --now monit
systemctl restart monit
firewall-cmd --zone=public --permanent --add-port=2812/tcp
firewall-cmd --reload
```