Collects stats from Netfilter’s conntrack-tools.
The conntrack-tools provide a mechanism for tracking various aspects of network connections as they are processed by netfilter. At runtime, conntrack exposes many of those connection statistics within /proc/sys/net. Depending on your kernel version, these files can be found in either /proc/sys/net/ipv4/netfilter or /proc/sys/net/netfilter and will be prefixed with either ip_ or nf_. This plugin reads the files specified in its configuration and publishes each one as a field, with the prefix normalized to ip_.
In order to simplify configuration in a heterogeneous environment, a superset of directory and filenames can be specified. Any locations that don’t exist will be ignored.
For more information on conntrack-tools, see the Netfilter Documentation.
# Collects conntrack stats from the configured directories and files. [[inputs.conntrack]] ## The following defaults would work with multiple versions of conntrack. ## Note the nf_ and ip_ filename prefixes are mutually exclusive across ## kernel versions, as are the directory locations. ## Superset of filenames to look for within the conntrack dirs. ## Missing files will be ignored. files = ["ip_conntrack_count","ip_conntrack_max", "nf_conntrack_count","nf_conntrack_max"] ## Directories to search within for the conntrack files above. ## Missing directories will be ignored. dirs = ["/proc/sys/net/ipv4/netfilter","/proc/sys/net/netfilter"]