Monitor ESXi, Synology, Docker, PiHole, Plex and Raspberry Pi and Windows using Grafana, InfluxDB and Telegraf
Synology Dashboard
Plex:
PiHole and Raspberry Pi Dashboard
ESXi Dashboard
Windows
Docker Dashboard
Asuswrt-Merlin Router (ASUS RT-AC68):
Download "telegraf_pi_temp.sh" and 'chmod +x' the script. Then call it from within telegraf using "[[inputs.exec]]" (already included telegraf.conf in this repo).
Change the address of PiHole to your PiHole's address in telegraf.conf
- Restart telegraf
Based on: https://github.com/jperillo/Synology_dashboard_grafana
Make sure snmp-mibs-downloader is already installed on your telegraf host. It will download and install additional MIBs during install.
apt-get install snmp-mibs-downloader
then
download-mibs
-
edit /etc/snmp/snmp.conf and comment out the 'mibs:' line. Here is what mine looks like:
GNU nano 2.7.4 File: /etc/snmp/snmp.conf # As the snmp packages come without MIB files due to license reasons, loading # of MIBs is disabled by default. If you added the MIBs you can reenable # loading them by commenting out the following line. # mibs : -
Now when you do a SNMPwalk, it will automatically translate OIDs to Names. This is what it looks like against my Synology:
kumar@raspberrypi:~ $ snmpwalk -c public -v 2c 192.168.1.5 SNMPv2-MIB::sysDescr.0 = STRING: Linux DiskStation 3.10.102 SMP Fri Jan 26 06:46:44 CST 2018 x86_64 SNMPv2-MIB::sysObjectID.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10 DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (90908998) 10 days, 12:31:29.98 SNMPv2-MIB::sysContact.0 = STRING: Redacted SNMPv2-MIB::sysName.0 = STRING: Synology DS416Play SNMPv2-MIB::sysLocation.0 = STRING: Home -
Get your MIBs (from here, for Synology Synology MIB download) and drop them in either of the below locations:
/home/$USER/.snmp/mibs or user/share/snmp/mibs
-
Go through the linked page above or the snmpwalk output and make a list of OIDs you want to monitor (grep is your friend here)
-
Add them to telegraf.conf using examples others have provided elsewhere in this thread
-
Restart telegraf and test with the '-test' flag. To verify everything is working as expected.
Telegraf introduced a new vsphere plugin. I will be using this instead of a custom script going forward. This plugin and details can be found here:
https://github.com/influxdata/telegraf/tree/master/plugins/inputs/vsphere
Dashboards for the metrics can be found here:
https://github.com/jorgedlcruz/vmware-grafana
DockerHost: Synology NAS (DS416Play) Telegraf: Raspberry Pi
Since I did not want to mess around with exposing docker.sock file to a remote client, I went with exposing a TCP endpoint on docker host to a remote telegraf agent.
To do this:
1. On Docker Host (Synology):
Add the endpoint details to /var/packages/Docker/etc/dockerd.json like so:
admin@DiskStation:~$ cat /var/packages/Docker/etc/dockerd.json
{
"hosts" : [ "tcp://synology.lan:2375", "unix:///var/run/docker.sock" ],
"registry-mirrors" : []
}
In the above snippet, tcp://synology.lan:2375 Is the end point definition we have to add
Note: Don't change any part of the "unix:///var/run/docker.sock" definition. Synology uses to run the Docker GUI. Also, since this is a JSON file, all lines except the last line have a " , " at the end. Also note the " , " after the TCP definition.
If you want to be doubly sure, you can use https://jsonlint.com to validate the JSON contents.
Once this is done, restart the docker package from within DSM's Package center
2. On Telegraf: Add the below lines to your input plugins:
# Synology Docker
[[inputs.docker]]
endpoint = "tcp://synology.lan:2375"
container_names = []
3. Grafana Dashboard:
Grafana Dashboard JSON is included in this repository. Simply import it, define your data source and you should be good to go.
Plex can be monitored using Verken linked below. I have included my customized dashboard in the repo for reference.