1. Copy the bitcoind_* scripts to /etc/munin/plugins.

2. If you're using SELinux, don't forget to chcon them properly.

3. Configure the plugins by creating a file named /etc/munin/plugin-conf.d/bitcoind with this content:

   [bitcoind*]
   user bitcoin
   

   This will tell Munin to run bitcoin-cli as the bitcoin user. Adapt it to your setup and avoid using root.

4. Restart the munin-node daemon with systemctl restart munin-node or /etc/init.d/munin-node restart.

5. Done. You should now start to see a new section bitcoind in your Munin pages with the corresponding graphs.

AGPLv3+