Fluxnode---system-auto-update

Auto update system for Flux node operators

Simple bash script to update server OS and postpone reboot (if needed after updates) if node is not in maintenance window. Using Crontab for autoupdates

How it works:

It gets the node information using the flux-cli getinfo command, which is used to check if the node is running

It calculates the number of blocks for maintenance window

It updates the package list using the sudo apt update command and then checks for available updates using the apt list --upgradable command

If updates are available, it upgrades the packages using the sudo apt upgrade -y command

It checks if a reboot is required

If a reboot is required, it checks if the node status is "CONFIRMED" and if the maintenance window is open (i.e. if the number of blocks until maintenance is less than or equal to 20) and if so, it schedules a reboot after a delay of 20 minutes plus the number of minutes until maintenance

If a reboot is not required, it exits the script

How to use:

Login to the server with the same user as the node (home directory where the flux node is installed) using ssh

download the script

wget https://github.com/mar24n/fluxnode---system-auto-update/releases/download/v1.0.0/autoupdate_system.sh

copy and paste command below to set the exec permission to the script , create log file and setup crontab

chmod +x autoupdate_system.sh && mkdir crontab_logs && touch crontab_logs/autouptade_os.log && crontab -l | sed "\$a0 0 */14 * * /home/$USER/autoupdate_system.sh >> /home/$USER/crontab_logs/autouptade_os.log 2>&1" | crontab -

the Crontab is set to execute script every 14 days

Logs directory /home/$USER/crontab_logs/autouptade_os.log