Skip to content
Prometheus File Watcher exporter
Branch: master
Clone or download
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Type Name Latest commit message Commit time
Failed to load latest commit information.

Prometheus Filewatcher Exporter

The exporter is watching files, providing last modified date, file zise and few system metrics for Prometheus.

Written in Rust

Built using: Prometheus exporter base

Metric name Description
filewatcher_file_modified File last modified timestamp
filewatcher_file_size File size in bytes
mem_total Total amount of server memory in bytes
mem_used Total used memory in bytes
mem_swap_total Swap size in bytes
mem_swap_used Used swap size in bytes
disk_free Free disk space in bytes (for each mount point in the system)
disk_total Total dis size in bytes (for each mount point in the system)


filewatcher_exporter -p 9104 -h -t "/var/log/nginx/error.log;/var/log/nginx/access.log"

Command line arguments

-p [port] - port number, default 9104
-h [host] - hostname, default
-v - verbouse 
-t [targets] - list of files to watch, separated by ;

Compile binaries

NOTE: Use Rust nightly version

cargo +nightly build --release

Output example

# HELP filewatcher_file_modified The timestamp when the file was last modified
# TYPE filewatcher_file_modified gauge
filewatcher_file_modified{filename="test.file",host="golden"} 1572918373
filewatcher_file_modified{filename="test2.file",host="golden"} 1573664023
# HELP filewatcher_file_size The size of the file in bytes
# TYPE filewatcher_file_size gauge
filewatcher_file_size{filename="test.file",host="golden"} 7778
filewatcher_file_size{filename="test2.file",host="golden"} 7789
# HELP mem_swap_total mem_swap_total collected metric
# TYPE mem_swap_total gauge
mem_swap_total{host="golden"} 16658428
# HELP mem_total mem_total collected metric
# TYPE mem_total gauge
mem_total{host="golden"} 16304852
# HELP mem_used mem_used collected metric
# TYPE mem_used gauge
mem_used{host="golden"} 15128092
# HELP mem_swap_used mem_swap_used collected metric
# TYPE mem_swap_used gauge
mem_swap_used{host="golden"} 5595344
# HELP disk_free disk_free collected metric
# TYPE disk_free gauge
disk_free{device="sda2",host="golden",fstype="ext4",path="/",type="SSD"} 70964506624
disk_free{device="sda1",host="golden",fstype="vfat",path="/boot/efi",type="SSD"} 498417664
# HELP disk_total disk_total collected metric
# TYPE disk_total gauge
disk_total{device="sda2",host="golden",fstype="ext4",path="/",type="SSD"} 234587672576
disk_total{device="sda1",host="golden",fstype="vfat",path="/boot/efi",type="SSD"} 535805952
You can’t perform that action at this time.