Add vnstat for throughput monitoring.

config-parts/container.sh

@@ -125,3 +125,14 @@ set container name onepassword-sync volume credentials mode 'ro'
 set container name onepassword-sync volume data source '/tmp/onepassword/data'
 set container name onepassword-sync volume data destination '/home/opuser/.op/data'
 set container name onepassword-sync volume data mode 'rw'
+
+# vnstat
+set container name vnstat allow-host-networks
+set container name vnstat environment EXCLUDE_PATTERN value '^docker|^veth|^br-|^lxc'
+set container name vnstat environment TZ value 'America/Chicago'
+set container name vnstat image 'ghcr.io/vergoh/vnstat:2.12'
+set container name vnstat memory '0'
+set container name vnstat shared-memory '0'
+set container name vnstat volume vnstat-data destination '/var/lib/vnstat'
+set container name vnstat volume vnstat-data mode 'rw'
+set container name vnstat volume vnstat-data source '/config/containers/vnstat/data'

containers/.gitignore

@@ -9,3 +9,4 @@
 !/haproxy/
 !/unifi/
 !/vector-agent/
+!/vnstat/

containers/vnstat/.gitignore

@@ -0,0 +1,6 @@
+# Ignore everything
+/*
+
+# Track certain files and directories
+!.gitignore
+!.gitkeep