Merge pull request #1 from MindFlavor/peer_names

Friendly names support for peer names
This commit is contained in:
Francesco Cogno 2019-05-20 11:07:28 +02:00 committed by GitHub
commit eab95c5f70
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GPG Key ID: 4AEE18F83AFDEB23
9 changed files with 565 additions and 136 deletions

232
Cargo.lock generated
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@ -29,7 +29,7 @@ name = "atty"
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"checksum rand_jitter 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "7b9ea758282efe12823e0d952ddb269d2e1897227e464919a554f2a03ef1b832" "checksum rand_jitter 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "1166d5c91dc97b88d1decc3285bb0a99ed84b05cfd0bc2341bdf2d43fc41e39b"
"checksum rand_os 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "7b75f676a1e053fc562eafbb47838d67c84801e38fc1ba459e8f180deabd5071" "checksum rand_os 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "7b75f676a1e053fc562eafbb47838d67c84801e38fc1ba459e8f180deabd5071"
"checksum rand_pcg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "abf9b09b01790cfe0364f52bf32995ea3c39f4d2dd011eac241d2914146d0b44" "checksum rand_pcg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "abf9b09b01790cfe0364f52bf32995ea3c39f4d2dd011eac241d2914146d0b44"
"checksum rand_xorshift 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "cbf7e9e623549b0e21f6e97cf8ecf247c1a8fd2e8a992ae265314300b2455d5c" "checksum rand_xorshift 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "cbf7e9e623549b0e21f6e97cf8ecf247c1a8fd2e8a992ae265314300b2455d5c"
@ -1059,26 +1082,27 @@ dependencies = [
"checksum regex-syntax 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)" = "dcfd8681eebe297b81d98498869d4aae052137651ad7b96822f09ceb690d0a96" "checksum regex-syntax 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)" = "dcfd8681eebe297b81d98498869d4aae052137651ad7b96822f09ceb690d0a96"
"checksum rustc-demangle 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)" = "ccc78bfd5acd7bf3e89cffcf899e5cb1a52d6fafa8dec2739ad70c9577a57288" "checksum rustc-demangle 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)" = "ccc78bfd5acd7bf3e89cffcf899e5cb1a52d6fafa8dec2739ad70c9577a57288"
"checksum rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a" "checksum rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
"checksum ryu 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)" = "eb9e9b8cde282a9fe6a42dd4681319bfb63f121b8a8ee9439c6f4107e58a46f7" "checksum ryu 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "b96a9549dc8d48f2c283938303c4b5a77aa29bfbc5b54b084fb1630408899a8f"
"checksum scopeguard 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "94258f53601af11e6a49f722422f6e3425c52b06245a5cf9bc09908b174f5e27" "checksum scopeguard 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "94258f53601af11e6a49f722422f6e3425c52b06245a5cf9bc09908b174f5e27"
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"checksum semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3" "checksum semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
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"checksum serde_derive 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)" = "58fc82bec244f168b23d1963b45c8bf5726e9a15a9d146a067f9081aeed2de79" "checksum serde_derive 1.0.91 (registry+https://github.com/rust-lang/crates.io-index)" = "101b495b109a3e3ca8c4cbe44cf62391527cdfb6ba15821c5ce80bcd5ea23f9f"
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"checksum textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060" "checksum textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"
"checksum thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c6b53e329000edc2b34dbe8545fd20e55a333362d0a321909685a19bd28c3f1b" "checksum thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c6b53e329000edc2b34dbe8545fd20e55a333362d0a321909685a19bd28c3f1b"
"checksum time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)" = "db8dcfca086c1143c9270ac42a2bbd8a7ee477b78ac8e45b19abfb0cbede4b6f" "checksum time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)" = "db8dcfca086c1143c9270ac42a2bbd8a7ee477b78ac8e45b19abfb0cbede4b6f"
"checksum tokio 0.1.19 (registry+https://github.com/rust-lang/crates.io-index)" = "cec6c34409089be085de9403ba2010b80e36938c9ca992c4f67f407bb13db0b1" "checksum tokio 0.1.20 (registry+https://github.com/rust-lang/crates.io-index)" = "94a1f9396aec29d31bb16c24d155cfa144d1af91c40740125db3131bdaf76da8"
"checksum tokio-buf 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "8fb220f46c53859a4b7ec083e41dec9778ff0b1851c0942b211edb89e0ccdc46"
"checksum tokio-current-thread 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "d16217cad7f1b840c5a97dfb3c43b0c871fef423a6e8d2118c604e843662a443" "checksum tokio-current-thread 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "d16217cad7f1b840c5a97dfb3c43b0c871fef423a6e8d2118c604e843662a443"
"checksum tokio-executor 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "83ea44c6c0773cc034771693711c35c677b4b5a4b21b9e7071704c54de7d555e" "checksum tokio-executor 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "83ea44c6c0773cc034771693711c35c677b4b5a4b21b9e7071704c54de7d555e"
"checksum tokio-io 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)" = "5090db468dad16e1a7a54c8c67280c5e4b544f3d3e018f0b913b400261f85926" "checksum tokio-io 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)" = "5090db468dad16e1a7a54c8c67280c5e4b544f3d3e018f0b913b400261f85926"
@ -1086,7 +1110,7 @@ dependencies = [
"checksum tokio-sync 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "5b2f843ffdf8d6e1f90bddd48da43f99ab071660cd92b7ec560ef3cdfd7a409a" "checksum tokio-sync 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "5b2f843ffdf8d6e1f90bddd48da43f99ab071660cd92b7ec560ef3cdfd7a409a"
"checksum tokio-tcp 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "1d14b10654be682ac43efee27401d792507e30fd8d26389e1da3b185de2e4119" "checksum tokio-tcp 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "1d14b10654be682ac43efee27401d792507e30fd8d26389e1da3b185de2e4119"
"checksum tokio-threadpool 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)" = "72558af20be886ea124595ea0f806dd5703b8958e4705429dd58b3d8231f72f2" "checksum tokio-threadpool 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)" = "72558af20be886ea124595ea0f806dd5703b8958e4705429dd58b3d8231f72f2"
"checksum tokio-timer 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)" = "2910970404ba6fa78c5539126a9ae2045d62e3713041e447f695f41405a120c6" "checksum tokio-timer 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)" = "f2106812d500ed25a4f38235b9cae8f78a09edf43203e16e59c3b769a342a60e"
"checksum tokio-trace-core 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "350c9edade9830dc185ae48ba45667a445ab59f6167ef6d0254ec9d2430d9dd3" "checksum tokio-trace-core 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "350c9edade9830dc185ae48ba45667a445ab59f6167ef6d0254ec9d2430d9dd3"
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"checksum ucd-util 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "535c204ee4d8434478593480b8f86ab45ec9aae0e83c568ca81abf0fd0e88f86" "checksum ucd-util 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "535c204ee4d8434478593480b8f86ab45ec9aae0e83c568ca81abf0fd0e88f86"

View File

@ -1,6 +1,6 @@
[package] [package]
name = "prometheus_wireguard_exporter" name = "prometheus_wireguard_exporter"
version = "0.1.0" version = "1.2.0"
authors = ["Francesco Cogno <francesco.cogno@outlook.com>"] authors = ["Francesco Cogno <francesco.cogno@outlook.com>"]
description = "Prometheus WireGuard Exporter" description = "Prometheus WireGuard Exporter"
edition = "2018" edition = "2018"
@ -18,11 +18,11 @@ categories = ["database"]
[dependencies] [dependencies]
log = "0.4.6" log = "0.4.6"
env_logger = "0.6.1" env_logger = "0.6.1"
futures = "0.1.26" futures = "0.1.27"
clap = "2.33.0" clap = "2.33.0"
serde_json = "1.0.39" serde_json = "1.0.39"
serde = "1.0.90" serde = "1.0.91"
serde_derive = "1.0.90" serde_derive = "1.0.91"
failure = "0.1.5" failure = "0.1.5"
hyper = "0.12.27" hyper = "0.12.29"
http = "0.1.17" http = "0.1.17"

103
README.md
View File

@ -4,15 +4,15 @@
[![Crate](https://img.shields.io/crates/v/prometheus_wireguard_exporter.svg)](https://crates.io/crates/prometheus_wireguard_exporter) [![cratedown](https://img.shields.io/crates/d/prometheus_wireguard_exporter.svg)](https://crates.io/crates/prometheus_wireguard_exporter) [![cratelastdown](https://img.shields.io/crates/dv/prometheus_wireguard_exporter.svg)](https://crates.io/crates/prometheus_wireguard_exporter) [![Crate](https://img.shields.io/crates/v/prometheus_wireguard_exporter.svg)](https://crates.io/crates/prometheus_wireguard_exporter) [![cratedown](https://img.shields.io/crates/d/prometheus_wireguard_exporter.svg)](https://crates.io/crates/prometheus_wireguard_exporter) [![cratelastdown](https://img.shields.io/crates/dv/prometheus_wireguard_exporter.svg)](https://crates.io/crates/prometheus_wireguard_exporter)
[![tag](https://img.shields.io/github/tag/mindflavor/prometheus_wireguard_exporter.svg)](https://github.com/MindFlavor/prometheus_wireguard_exporter/tree/0.1.0) [![tag](https://img.shields.io/github/tag/mindflavor/prometheus_wireguard_exporter.svg)](https://github.com/MindFlavor/prometheus_wireguard_exporter/tree/1.2.0)
[![release](https://img.shields.io/github/release/MindFlavor/prometheus_wireguard_exporter.svg)](https://github.com/MindFlavor/prometheus_wireguard_exporter/tree/0.1.0) [![release](https://img.shields.io/github/release/MindFlavor/prometheus_wireguard_exporter.svg)](https://github.com/MindFlavor/prometheus_wireguard_exporter/tree/1.2.0)
[![commitssince](https://img.shields.io/github/commits-since/mindflavor/prometheus_wireguard_exporter/0.1.0.svg)](https://img.shields.io/github/commits-since/mindflavor/prometheus_wireguard_exporter/0.1.0.svg) [![commitssince](https://img.shields.io/github/commits-since/mindflavor/prometheus_wireguard_exporter/1.2.0.svg)](https://img.shields.io/github/commits-since/mindflavor/prometheus_wireguard_exporter/1.2.0.svg)
## Intro ## Intro
A Prometheus exporter for [WireGuard](https://www.wireguard.com), written in Rust. This tool exports the `wg show all dump` results in a format that [Prometheus](https://prometheus.io/) can understand. The exporter is very light on your server resources, both in terms of memory and CPU usage. A Prometheus exporter for [WireGuard](https://www.wireguard.com), written in Rust. This tool exports the `wg show all dump` results in a format that [Prometheus](https://prometheus.io/) can understand. The exporter is very light on your server resources, both in terms of memory and CPU usage.
![](extra/00.png) ![](extra/01.png)
## Prerequisites ## Prerequisites
@ -43,9 +43,102 @@ Start the binary with `-h` to get the complete syntax. The parameters are:
| -- | -- | -- | -- | -- | | -- | -- | -- | -- | -- |
| `-v` | no | <switch> | | Enable verbose mode. | `-v` | no | <switch> | | Enable verbose mode.
| `-p` | no | any valid port number | 9576 | Specify the service port. This is the port your Prometheus instance should point to. | `-p` | no | any valid port number | 9576 | Specify the service port. This is the port your Prometheus instance should point to.
| `-n` | no | path to the wireguard configuration file | | This flag adds the *friendly_name* attribute to the exported entries. See [Friendly names](#friendly-names) for more details.
Once started, the tool will listen on the specified port (or the default one, 9576, if not specified) and return a Prometheus valid response at the url `/metrics`. So to check if the tool is working properly simply browse the `http://localhost:9576/metrics` (or whichever port you choose). Once started, the tool will listen on the specified port (or the default one, 9576, if not specified) and return a Prometheus valid response at the url `/metrics`. So to check if the tool is working properly simply browse the `http://localhost:9576/metrics` (or whichever port you choose).
## Friendly Names
Starting from version 1.2 you can instruct the exporter to append a *friendly name* to the exported entries. This can make the output more understandable than using the public keys. For example this is the standard output:
```
# HELP wireguard_sent_bytes Bytes sent to the peer
# TYPE wireguard_sent_bytes counter
wireguard_sent_bytes{inteface="wg0", public_key="2S7mA0vEMethCNQrJpJKE81/JmhgtB+tHHLYQhgM6kk=", local_ip="10.70.0.2", local_subnet="32"} 13500788
wireguard_sent_bytes{inteface="wg0", public_key="qnoxQoQI8KKMupLnSSureORV0wMmH7JryZNsmGVISzU=", local_ip="10.70.0.3", local_subnet="32"} 0
wireguard_sent_bytes{inteface="wg0", public_key="L2UoJZN7RmEKsMmqaJgKG0m1S2Zs2wd2ptAf+kb3008=", local_ip="10.70.0.4", local_subnet="32"} 0
wireguard_sent_bytes{inteface="wg0", public_key="MdVOIPKt9K2MPj/sO2NlWQbOnFJ6L/qX80mmhQwsUlA=", local_ip="10.70.0.50", local_subnet="32"} 0
wireguard_sent_bytes{inteface="wg0", public_key="lqYcojJMsIZXMUw1heAFbQHBoKjCEaeo7M1WXDh/KWc=", local_ip="10.70.0.40", local_subnet="32"} 0
wireguard_sent_bytes{inteface="wg0", public_key="928vO9Lf4+Mo84cWu4k1oRyzf0AR7FTGoPKHGoTMSHk=", local_ip="10.70.0.80", local_subnet="32"} 0
wireguard_sent_bytes{inteface="wg0", public_key="wTjv6hS6fKfNK+SzOLo7O6BQjEb6AD1TN9GjwZ08IwA=", local_ip="10.70.0.5", local_subnet="32"} 7975608
# HELP wireguard_received_bytes Bytes received from the peer
# TYPE wireguard_received_bytes counter
wireguard_received_bytes{inteface="wg0", public_key="2S7mA0vEMethCNQrJpJKE81/JmhgtB+tHHLYQhgM6kk=", local_ip="10.70.0.2", local_subnet="32"} 50007604
wireguard_received_bytes{inteface="wg0", public_key="qnoxQoQI8KKMupLnSSureORV0wMmH7JryZNsmGVISzU=", local_ip="10.70.0.3", local_subnet="32"} 0
wireguard_received_bytes{inteface="wg0", public_key="L2UoJZN7RmEKsMmqaJgKG0m1S2Zs2wd2ptAf+kb3008=", local_ip="10.70.0.4", local_subnet="32"} 0
wireguard_received_bytes{inteface="wg0", public_key="MdVOIPKt9K2MPj/sO2NlWQbOnFJ6L/qX80mmhQwsUlA=", local_ip="10.70.0.50", local_subnet="32"} 0
wireguard_received_bytes{inteface="wg0", public_key="lqYcojJMsIZXMUw1heAFbQHBoKjCEaeo7M1WXDh/KWc=", local_ip="10.70.0.40", local_subnet="32"} 0
wireguard_received_bytes{inteface="wg0", public_key="928vO9Lf4+Mo84cWu4k1oRyzf0AR7FTGoPKHGoTMSHk=", local_ip="10.70.0.80", local_subnet="32"} 0
wireguard_received_bytes{inteface="wg0", public_key="wTjv6hS6fKfNK+SzOLo7O6BQjEb6AD1TN9GjwZ08IwA=", local_ip="10.70.0.5", local_subnet="32"} 182505560
# HELP wireguard_latest_handshake_seconds Seconds from the last handshake
# TYPE wireguard_latest_handshake_seconds gauge
wireguard_latest_handshake_seconds{inteface="wg0", public_key="2S7mA0vEMethCNQrJpJKE81/JmhgtB+tHHLYQhgM6kk=", local_ip="10.70.0.2", local_subnet="32"} 50780
wireguard_latest_handshake_seconds{inteface="wg0", public_key="qnoxQoQI8KKMupLnSSureORV0wMmH7JryZNsmGVISzU=", local_ip="10.70.0.3", local_subnet="32"} 1558341167
wireguard_latest_handshake_seconds{inteface="wg0", public_key="L2UoJZN7RmEKsMmqaJgKG0m1S2Zs2wd2ptAf+kb3008=", local_ip="10.70.0.4", local_subnet="32"} 1558341167
wireguard_latest_handshake_seconds{inteface="wg0", public_key="MdVOIPKt9K2MPj/sO2NlWQbOnFJ6L/qX80mmhQwsUlA=", local_ip="10.70.0.50", local_subnet="32"} 1558341167
wireguard_latest_handshake_seconds{inteface="wg0", public_key="lqYcojJMsIZXMUw1heAFbQHBoKjCEaeo7M1WXDh/KWc=", local_ip="10.70.0.40", local_subnet="32"} 1558341167
wireguard_latest_handshake_seconds{inteface="wg0", public_key="928vO9Lf4+Mo84cWu4k1oRyzf0AR7FTGoPKHGoTMSHk=", local_ip="10.70.0.80", local_subnet="32"} 1558341167
wireguard_latest_handshake_seconds{inteface="wg0", public_key="wTjv6hS6fKfNK+SzOLo7O6BQjEb6AD1TN9GjwZ08IwA=", local_ip="10.70.0.5", local_subnet="32"} 63459
```
And this is the one augmented with friendly names:
```
# HELP wireguard_sent_bytes Bytes sent to the peer
# TYPE wireguard_sent_bytes counter
wireguard_sent_bytes{inteface="wg0", public_key="2S7mA0vEMethCNQrJpJKE81/JmhgtB+tHHLYQhgM6kk=", local_ip="10.70.0.2", local_subnet="32", friendly_name="OnePlus 6T"} 13500788
wireguard_sent_bytes{inteface="wg0", public_key="qnoxQoQI8KKMupLnSSureORV0wMmH7JryZNsmGVISzU=", local_ip="10.70.0.3", local_subnet="32", friendly_name="varch.local (laptop)"} 0
wireguard_sent_bytes{inteface="wg0", public_key="L2UoJZN7RmEKsMmqaJgKG0m1S2Zs2wd2ptAf+kb3008=", local_ip="10.70.0.4", local_subnet="32", friendly_name="cantarch"} 0
wireguard_sent_bytes{inteface="wg0", public_key="MdVOIPKt9K2MPj/sO2NlWQbOnFJ6L/qX80mmhQwsUlA=", local_ip="10.70.0.50", local_subnet="32", friendly_name="frcognoarch"} 0
wireguard_sent_bytes{inteface="wg0", public_key="lqYcojJMsIZXMUw1heAFbQHBoKjCEaeo7M1WXDh/KWc=", local_ip="10.70.0.40", local_subnet="32", friendly_name="frcognowin10"} 0
wireguard_sent_bytes{inteface="wg0", public_key="928vO9Lf4+Mo84cWu4k1oRyzf0AR7FTGoPKHGoTMSHk=", local_ip="10.70.0.80", local_subnet="32", friendly_name="OnePlus 5T"} 0
wireguard_sent_bytes{inteface="wg0", public_key="wTjv6hS6fKfNK+SzOLo7O6BQjEb6AD1TN9GjwZ08IwA=", local_ip="10.70.0.5", local_subnet="32", friendly_name="folioarch"} 7975608
# HELP wireguard_received_bytes Bytes received from the peer
# TYPE wireguard_received_bytes counter
wireguard_received_bytes{inteface="wg0", public_key="2S7mA0vEMethCNQrJpJKE81/JmhgtB+tHHLYQhgM6kk=", local_ip="10.70.0.2", local_subnet="32", friendly_name="OnePlus 6T"} 50007604
wireguard_received_bytes{inteface="wg0", public_key="qnoxQoQI8KKMupLnSSureORV0wMmH7JryZNsmGVISzU=", local_ip="10.70.0.3", local_subnet="32", friendly_name="varch.local (laptop)"} 0
wireguard_received_bytes{inteface="wg0", public_key="L2UoJZN7RmEKsMmqaJgKG0m1S2Zs2wd2ptAf+kb3008=", local_ip="10.70.0.4", local_subnet="32", friendly_name="cantarch"} 0
wireguard_received_bytes{inteface="wg0", public_key="MdVOIPKt9K2MPj/sO2NlWQbOnFJ6L/qX80mmhQwsUlA=", local_ip="10.70.0.50", local_subnet="32", friendly_name="frcognoarch"} 0
wireguard_received_bytes{inteface="wg0", public_key="lqYcojJMsIZXMUw1heAFbQHBoKjCEaeo7M1WXDh/KWc=", local_ip="10.70.0.40", local_subnet="32", friendly_name="frcognowin10"} 0
wireguard_received_bytes{inteface="wg0", public_key="928vO9Lf4+Mo84cWu4k1oRyzf0AR7FTGoPKHGoTMSHk=", local_ip="10.70.0.80", local_subnet="32", friendly_name="OnePlus 5T"} 0
wireguard_received_bytes{inteface="wg0", public_key="wTjv6hS6fKfNK+SzOLo7O6BQjEb6AD1TN9GjwZ08IwA=", local_ip="10.70.0.5", local_subnet="32", friendly_name="folioarch"} 182505560
# HELP wireguard_latest_handshake_seconds Seconds from the last handshake
# TYPE wireguard_latest_handshake_seconds gauge
wireguard_latest_handshake_seconds{inteface="wg0", public_key="2S7mA0vEMethCNQrJpJKE81/JmhgtB+tHHLYQhgM6kk=", local_ip="10.70.0.2", local_subnet="32", friendly_name="OnePlus 6T"} 50780
wireguard_latest_handshake_seconds{inteface="wg0", public_key="qnoxQoQI8KKMupLnSSureORV0wMmH7JryZNsmGVISzU=", local_ip="10.70.0.3", local_subnet="32", friendly_name="varch.local (laptop)"} 1558341167
wireguard_latest_handshake_seconds{inteface="wg0", public_key="L2UoJZN7RmEKsMmqaJgKG0m1S2Zs2wd2ptAf+kb3008=", local_ip="10.70.0.4", local_subnet="32", friendly_name="cantarch"} 1558341167
wireguard_latest_handshake_seconds{inteface="wg0", public_key="MdVOIPKt9K2MPj/sO2NlWQbOnFJ6L/qX80mmhQwsUlA=", local_ip="10.70.0.50", local_subnet="32", friendly_name="frcognoarch"} 1558341167
wireguard_latest_handshake_seconds{inteface="wg0", public_key="lqYcojJMsIZXMUw1heAFbQHBoKjCEaeo7M1WXDh/KWc=", local_ip="10.70.0.40", local_subnet="32", friendly_name="frcognowin10"} 1558341167
wireguard_latest_handshake_seconds{inteface="wg0", public_key="928vO9Lf4+Mo84cWu4k1oRyzf0AR7FTGoPKHGoTMSHk=", local_ip="10.70.0.80", local_subnet="32", friendly_name="OnePlus 5T"} 1558341167
wireguard_latest_handshake_seconds{inteface="wg0", public_key="wTjv6hS6fKfNK+SzOLo7O6BQjEb6AD1TN9GjwZ08IwA=", local_ip="10.70.0.5", local_subnet="32", friendly_name="folioarch"} 63459
```
In order for this to work, you need to add comments to your wireguard configuration file (below the `[Peer]` definition). The comment will be interpreted as `friendly_name` and added to the entry exported to Prometheus. Note that this is not a standard but, since it's a comment, will not interfere with WireGuard in any way. For example this is how you edit your WireGuard configuration file:
```
[Peer]
PublicKey = lqYcojJMsIZXMUw1heAFbQHBoKjCEaeo7M1WXDh/KWc=
AllowedIPs = 10.70.0.40/32
[Peer]
PublicKey = 928vO9Lf4+Mo84cWu4k1oRyzf0AR7FTGoPKHGoTMSHk=
AllowedIPs = 10.70.0.80/32
```
```
[Peer]
# frcognowin10
PublicKey = lqYcojJMsIZXMUw1heAFbQHBoKjCEaeo7M1WXDh/KWc=
AllowedIPs = 10.70.0.40/32
[Peer]
# OnePlus 5T
PublicKey = 928vO9Lf4+Mo84cWu4k1oRyzf0AR7FTGoPKHGoTMSHk=
AllowedIPs = 10.70.0.80/32
```
As you can see, all you need to do is to add the friendly name as comment (and enable the flag since this feature is opt-in).
### Systemd service file ### Systemd service file
Now add the exporter to the Prometheus exporters as usual. I recommend to start it as a service. It's necessary to run it as root (if there is a non-root way to call `wg show all dump` please let me know). My systemd service file is like this one: Now add the exporter to the Prometheus exporters as usual. I recommend to start it as a service. It's necessary to run it as root (if there is a non-root way to call `wg show all dump` please let me know). My systemd service file is like this one:
@ -60,7 +153,7 @@ After=network-online.target
User=root User=root
Group=root Group=root
Type=simple Type=simple
ExecStart=/usr/local/bin/prometheus_wireguard_exporter ExecStart=/usr/local/bin/prometheus_wireguard_exporter -n /etc/wireguard/wg0.conf
[Install] [Install]
WantedBy=multi-user.target WantedBy=multi-user.target

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@ -1,3 +1,12 @@
#[derive(Debug, Fail)]
pub(crate) enum PeerEntryParseError {
#[fail(display = "PublicKey entry not found in lines: {:?}", lines)]
PublicKeyNotFound { lines: Vec<String> },
#[fail(display = "AllowedIPs entry not found in lines: {:?}", lines)]
AllowedIPsEntryNotFound { lines: Vec<String> },
}
#[derive(Debug, Fail)] #[derive(Debug, Fail)]
pub(crate) enum ExporterError { pub(crate) enum ExporterError {
#[allow(dead_code)] #[allow(dead_code)]
@ -24,6 +33,15 @@ pub(crate) enum ExporterError {
#[fail(display = "int conversion error: {}", e)] #[fail(display = "int conversion error: {}", e)]
ParseInt { e: std::num::ParseIntError }, ParseInt { e: std::num::ParseIntError },
#[fail(display = "PeerEntry parse error: {}", e)]
PeerEntryParseError { e: PeerEntryParseError },
}
impl From<PeerEntryParseError> for ExporterError {
fn from(e: PeerEntryParseError) -> Self {
ExporterError::PeerEntryParseError { e }
}
} }
impl From<std::io::Error> for ExporterError { impl From<std::io::Error> for ExporterError {

View File

@ -20,6 +20,8 @@ use std::convert::TryFrom;
use std::process::Command; use std::process::Command;
use std::string::String; use std::string::String;
use wireguard::WireGuard; use wireguard::WireGuard;
mod wireguard_config;
use wireguard_config::peer_entry_hashmap_try_from;
fn check_compliance(req: &Request<Body>) -> Result<(), Response<Body>> { fn check_compliance(req: &Request<Body>) -> Result<(), Response<Body>> {
if req.uri() != "/metrics" { if req.uri() != "/metrics" {
@ -60,12 +62,27 @@ fn handle_request(
}) })
} }
fn wg_with_text(
wg_config_str: &str,
wg_output: ::std::process::Output,
) -> Result<Response<Body>, ExporterError> {
let pehm = peer_entry_hashmap_try_from(wg_config_str)?;
trace!("pehm == {:?}", pehm);
let wg_output_string = String::from_utf8(wg_output.stdout)?;
let wg = WireGuard::try_from(&wg_output_string as &str)?;
Ok(Response::new(Body::from(wg.render_with_names(Some(&pehm)))))
}
fn perform_request( fn perform_request(
_req: Request<Body>, _req: Request<Body>,
_options: &Options, options: &Options,
) -> impl Future<Item = Response<Body>, Error = ExporterError> { ) -> impl Future<Item = Response<Body>, Error = ExporterError> {
trace!("perform_request"); trace!("perform_request");
// this is needed to satisfy the borrow checker
let options = options.clone();
done( done(
Command::new("wg") Command::new("wg")
.arg("show") .arg("show")
@ -75,6 +92,14 @@ fn perform_request(
) )
.from_err() .from_err()
.and_then(|output| { .and_then(|output| {
if let Some(extract_names_config_file) = options.extract_names_config_file {
Either::A(
done(::std::fs::read_to_string(extract_names_config_file))
.from_err()
.and_then(|wg_config_string| wg_with_text(&wg_config_string as &str, output)),
)
} else {
Either::B(
done(String::from_utf8(output.stdout)) done(String::from_utf8(output.stdout))
.from_err() .from_err()
.and_then(|output_str| { .and_then(|output_str| {
@ -82,18 +107,20 @@ fn perform_request(
done(WireGuard::try_from(&output_str as &str)) done(WireGuard::try_from(&output_str as &str))
.from_err() .from_err()
.and_then(|wg| ok(Response::new(Body::from(wg.render())))) .and_then(|wg| ok(Response::new(Body::from(wg.render()))))
}) }),
)
}
}) })
} }
fn main() { fn main() {
let matches = clap::App::new("prometheus_wireguard_exporter") let matches = clap::App::new("prometheus_wireguard_exporter")
.version("0.1") .version("1.2.0")
.author("Francesco Cogno <francesco.cogno@outlook.com>") .author("Francesco Cogno <francesco.cogno@outlook.com>")
.arg( .arg(
Arg::with_name("port") Arg::with_name("port")
.short("p") .short("p")
.help("exporter port (default 9576)") .help("exporter port")
.default_value("9576") .default_value("9576")
.takes_value(true), .takes_value(true),
) )
@ -103,6 +130,11 @@ fn main() {
.help("verbose logging") .help("verbose logging")
.takes_value(false), .takes_value(false),
) )
.arg(
Arg::with_name("extract_names_config_file")
.short("n")
.help("If set, the exporter will look in the specified WireGuard config file for peer names (must be in [Peer] definition and be a comment)")
.takes_value(true))
.get_matches(); .get_matches();
let options = Options::from_claps(&matches); let options = Options::from_claps(&matches);

View File

@ -1,12 +1,21 @@
#[derive(Debug, Clone)] #[derive(Debug, Clone)]
pub(crate) struct Options { pub(crate) struct Options {
pub verbose: bool, pub verbose: bool,
pub extract_names_config_file: Option<String>,
} }
impl Options { impl Options {
pub fn from_claps(matches: &clap::ArgMatches<'_>) -> Options { pub fn from_claps(matches: &clap::ArgMatches<'_>) -> Options {
if let Some(e) = matches.value_of("extract_names_config_file") {
Options { Options {
verbose: matches.is_present("verbose"), verbose: matches.is_present("verbose"),
extract_names_config_file: Some(e.to_owned()),
}
} else {
Options {
verbose: matches.is_present("verbose"),
extract_names_config_file: None,
}
} }
} }
} }

View File

@ -1,5 +1,6 @@
use crate::exporter_error::ExporterError; use crate::exporter_error::ExporterError;
use crate::render_to_prometheus::RenderToPrometheus; use crate::render_to_prometheus::RenderToPrometheus;
use crate::wireguard_config::PeerEntryHashMap;
use log::{debug, trace}; use log::{debug, trace};
use std::collections::HashMap; use std::collections::HashMap;
use std::convert::TryFrom; use std::convert::TryFrom;
@ -124,12 +125,38 @@ impl TryFrom<&str> for WireGuard {
} }
} }
impl RenderToPrometheus for WireGuard { impl WireGuard {
fn render(&self) -> String { pub(crate) fn render_with_names(&self, pehm: Option<&PeerEntryHashMap>) -> String {
let mut latest_handshakes = Vec::new(); let mut latest_handshakes = Vec::new();
let mut sent_bytes = Vec::new(); let mut sent_bytes = Vec::new();
let mut received_bytes = Vec::new(); let mut received_bytes = Vec::new();
if let Some(pehm) = pehm {
// here we try to add the "friendly" name looking in the hashmap
for (interface, endpoints) in self.interfaces.iter() {
for endpoint in endpoints {
// only show remote endpoints
if let Endpoint::Remote(ep) = endpoint {
debug!("{:?}", ep);
if let Some(ep_friendly_name) = pehm.get(&ep.public_key as &str) {
if let Some(ep_friendly_name) = ep_friendly_name.name {
sent_bytes.push(format!("wireguard_sent_bytes{{inteface=\"{}\", public_key=\"{}\", local_ip=\"{}\", local_subnet=\"{}\", friendly_name=\"{}\"}} {}\n", interface, ep.public_key, ep.local_ip, ep.local_subnet, ep_friendly_name, ep.sent_bytes));
received_bytes.push(format!("wireguard_received_bytes{{inteface=\"{}\", public_key=\"{}\", local_ip=\"{}\", local_subnet=\"{}\", friendly_name=\"{}\"}} {}\n", interface, ep.public_key, ep.local_ip, ep.local_subnet, ep_friendly_name, ep.received_bytes));
latest_handshakes.push(format!("wireguard_latest_handshake_seconds{{inteface=\"{}\", public_key=\"{}\", local_ip=\"{}\", local_subnet=\"{}\", friendly_name=\"{}\"}} {}\n", interface, ep.public_key, ep.local_ip, ep.local_subnet, ep_friendly_name, ::std::time::SystemTime::now().duration_since(ep.latest_handshake).unwrap().as_secs()));
} else {
sent_bytes.push(format!("wireguard_sent_bytes{{inteface=\"{}\", public_key=\"{}\", local_ip=\"{}\", local_subnet=\"{}\"}} {}\n", interface, ep.public_key, ep.local_ip, ep.local_subnet, ep.sent_bytes));
received_bytes.push(format!("wireguard_received_bytes{{inteface=\"{}\", public_key=\"{}\", local_ip=\"{}\", local_subnet=\"{}\"}} {}\n", interface, ep.public_key, ep.local_ip, ep.local_subnet, ep.received_bytes));
latest_handshakes.push(format!("wireguard_latest_handshake_seconds{{inteface=\"{}\", public_key=\"{}\", local_ip=\"{}\", local_subnet=\"{}\"}} {}\n", interface, ep.public_key, ep.local_ip, ep.local_subnet, ::std::time::SystemTime::now().duration_since(ep.latest_handshake).unwrap().as_secs()));
}
} else {
sent_bytes.push(format!("wireguard_sent_bytes{{inteface=\"{}\", public_key=\"{}\", local_ip=\"{}\", local_subnet=\"{}\"}} {}\n", interface, ep.public_key, ep.local_ip, ep.local_subnet, ep.sent_bytes));
received_bytes.push(format!("wireguard_received_bytes{{inteface=\"{}\", public_key=\"{}\", local_ip=\"{}\", local_subnet=\"{}\"}} {}\n", interface, ep.public_key, ep.local_ip, ep.local_subnet, ep.received_bytes));
latest_handshakes.push(format!("wireguard_latest_handshake_seconds{{inteface=\"{}\", public_key=\"{}\", local_ip=\"{}\", local_subnet=\"{}\"}} {}\n", interface, ep.public_key, ep.local_ip, ep.local_subnet, ::std::time::SystemTime::now().duration_since(ep.latest_handshake).unwrap().as_secs()));
}
}
}
}
} else {
for (interface, endpoints) in self.interfaces.iter() { for (interface, endpoints) in self.interfaces.iter() {
for endpoint in endpoints { for endpoint in endpoints {
// only show remote endpoints // only show remote endpoints
@ -141,6 +168,7 @@ impl RenderToPrometheus for WireGuard {
} }
} }
} }
}
let mut s = String::new(); let mut s = String::new();
@ -173,6 +201,12 @@ impl RenderToPrometheus for WireGuard {
} }
} }
impl RenderToPrometheus for WireGuard {
fn render(&self) -> String {
self.render_with_names(None)
}
}
#[cfg(test)] #[cfg(test)]
mod tests { mod tests {
use super::*; use super::*;

219
src/wireguard_config.rs Normal file
View File

@ -0,0 +1,219 @@
use crate::exporter_error::PeerEntryParseError;
use log::debug;
use std::collections::HashMap;
use std::convert::TryFrom;
#[derive(Debug, Default, Clone)]
pub(crate) struct PeerEntry<'a> {
pub public_key: &'a str,
pub allowed_ips: &'a str,
pub name: Option<&'a str>,
}
#[inline]
fn after_char(s: &str, c_split: char) -> &str {
let mut p: usize = 0;
for c in s.chars().into_iter() {
if c == c_split {
return &s[p + 1..];
} else {
p += c.len_utf8();
}
}
s
}
impl<'a> TryFrom<&[&'a str]> for PeerEntry<'a> {
type Error = PeerEntryParseError;
fn try_from(lines: &[&'a str]) -> Result<PeerEntry<'a>, Self::Error> {
let mut public_key = "";
let mut allowed_ips = "";
let mut name = None;
for line in lines {
if line.starts_with("PublicKey") {
public_key = after_char(line, '=').trim();
} else if line.starts_with("AllowedIPs") {
allowed_ips = after_char(line, '=').trim();
} else if line.starts_with('#') {
// since the pound sign is 1 byte the below slice will work
name = Some(line[1..].trim());
}
}
// Sanity checks
// If there are more than one PublicKey or AllowedIPs we won't catch it. But
// WireGuard won't be working either so we can live with this simplification.
if public_key == "" {
// we return a owned String for ergonomics. This will allocate but it's ok since it's not supposed
// to happen :)
let lines_owned: Vec<String> = lines.iter().map(|line| line.to_string()).collect();
Err(PeerEntryParseError::PublicKeyNotFound { lines: lines_owned })
} else if allowed_ips == "" {
let lines_owned: Vec<String> = lines.iter().map(|line| line.to_string()).collect();
Err(PeerEntryParseError::AllowedIPsEntryNotFound { lines: lines_owned })
} else {
Ok(PeerEntry {
public_key,
allowed_ips,
name, // name can be None
})
}
}
}
pub(crate) type PeerEntryHashMap<'a> = (HashMap<&'a str, PeerEntry<'a>>);
pub(crate) fn peer_entry_hashmap_try_from(
txt: &str,
) -> Result<PeerEntryHashMap, PeerEntryParseError> {
let mut hm = HashMap::new();
let mut v_blocks = Vec::new();
let mut cur_block: Option<Vec<&str>> = None;
for line in txt.lines().into_iter() {
if line.starts_with('[') {
if let Some(inner_cur_block) = cur_block {
// close the block
v_blocks.push(inner_cur_block);
cur_block = None;
}
if line == "[Peer]" {
// start a new block
cur_block = Some(Vec::new());
}
} else {
// push the line if we are in a block (only if not empty)
if let Some(inner_cur_block) = &mut cur_block {
if line != "" {
inner_cur_block.push(line);
}
}
}
}
if let Some(cur_block) = cur_block {
// we have a leftover block
v_blocks.push(cur_block);
}
debug!("v_blocks == {:?}", v_blocks);
for block in &v_blocks {
let p: PeerEntry = PeerEntry::try_from(&block as &[&str])?;
hm.insert(p.public_key, p);
}
debug!("hm == {:?}", hm);
Ok(hm)
}
#[cfg(test)]
mod tests {
use super::*;
const TEXT: &'static str = "
ListenPort = 51820
PrivateKey = my_super_secret_private_key
# PreUp = iptables -t nat -A POSTROUTING -s 10.70.0.0/24 -o enp7s0 -j MASQUERADE
# PostDown = iptables -t nat -D POSTROUTING -s 10.70.0.0/24 -o enp7s0 -j MASQUERADE
[Peer]
# OnePlus 6T
PublicKey = 2S7mA0vEMethCNQrJpJKE81/JmhgtB+tHHLYQhgM6kk=
AllowedIPs = 10.70.0.2/32
[Peer]
# varch.local (laptop)
PublicKey = qnoxQoQI8KKMupLnSSureORV0wMmH7JryZNsmGVISzU=
AllowedIPs = 10.70.0.3/32
[Peer]
# cantarch
PublicKey = L2UoJZN7RmEKsMmqaJgKG0m1S2Zs2wd2ptAf+kb3008=
AllowedIPs = 10.70.0.4/32
[Peer]
# frcognoarch
PublicKey = MdVOIPKt9K2MPj/sO2NlWQbOnFJ6L/qX80mmhQwsUlA=
AllowedIPs = 10.70.0.50/32
[Peer]
# frcognowin10
PublicKey = lqYcojJMsIZXMUw1heAFbQHBoKjCEaeo7M1WXDh/KWc=
AllowedIPs = 10.70.0.40/32
[Peer]
# OnePlus 5T
PublicKey = 928vO9Lf4+Mo84cWu4k1oRyzf0AR7FTGoPKHGoTMSHk=
AllowedIPs = 10.70.0.80/32
";
const TEXT_NOPK: &'static str = "
ListenPort = 51820
PrivateKey = my_super_secret_private_key
# PreUp = iptables -t nat -A POSTROUTING -s 10.70.0.0/24 -o enp7s0 -j MASQUERADE
# PostDown = iptables -t nat -D POSTROUTING -s 10.70.0.0/24 -o enp7s0 -j MASQUERADE
[Peer]
# OnePlus 6T
PublicKey = 2S7mA0vEMethCNQrJpJKE81/JmhgtB+tHHLYQhgM6kk=
AllowedIPs = 10.70.0.2/32
[Peer]
# varch.local (laptop)
AllowedIPs = 10.70.0.3/32
[Peer]
# cantarch
PublicKey = L2UoJZN7RmEKsMmqaJgKG0m1S2Zs2wd2ptAf+kb3008=
AllowedIPs = 10.70.0.4/32
";
const TEXT_AIP: &'static str = "
ListenPort = 51820
PrivateKey = my_super_secret_private_key
# PreUp = iptables -t nat -A POSTROUTING -s 10.70.0.0/24 -o enp7s0 -j MASQUERADE
# PostDown = iptables -t nat -D POSTROUTING -s 10.70.0.0/24 -o enp7s0 -j MASQUERADE
[Peer]
# OnePlus 6T
PublicKey = 2S7mA0vEMethCNQrJpJKE81/JmhgtB+tHHLYQhgM6kk=
AllowedIPs = 10.70.0.2/32
[Peer]
# varch.local (laptop)
AllowedIPs = 10.70.0.3/32
PublicKey = 6S7mA0vEMethCNQrJpJKE81/JmhgtB+tHHLYQhgM6kk=
[Peer]
# cantarch
PublicKey = L2UoJZN7RmEKsMmqaJgKG0m1S2Zs2wd2ptAf+kb3008=
";
#[test]
fn test_parse_ok() {
let a: PeerEntryHashMap = PeerEntryHashMap::try_from(TEXT).unwrap();
println!("{:?}", a);
}
#[test]
#[should_panic(
expected = "PublicKeyNotFound { lines: [\"# varch.local (laptop)\", \"AllowedIPs = 10.70.0.3/32\"] }"
)]
fn test_parse_no_public_key() {
let _: PeerEntryHashMap = PeerEntryHashMap::try_from(TEXT_NOPK).unwrap();
}
#[test]
#[should_panic(
expected = "AllowedIPsEntryNotFound { lines: [\"# cantarch\", \"PublicKey = L2UoJZN7RmEKsMmqaJgKG0m1S2Zs2wd2ptAf+kb3008=\"] }"
)]
fn test_parse_no_allowed_ips() {
let _: PeerEntryHashMap = PeerEntryHashMap::try_from(TEXT_AIP).unwrap();
}
}