openvpn

package

v0.55.0 Latest Latest Go to latest Published: Sep 15, 2023 License: GPL-3.0 Imports: 7 Imported by: 1

Details

Valid go.mod file
Redistributable license
Tagged version
Stable version
Learn more about best practices

Repository

github.com/netdata/go.d.plugin

Links

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README ¶

OpenVPN collector

Overview

OpenVPN is an open-source commercial software that implements virtual private network techniques to create secure point-to-point or site-to-site connections in routed or bridged configurations and remote access facilities.

This collector monitors one or more OpenVPN servers, depending on your configuration.

It uses OpenVPN Management Interface to collect metrics.

Collected metrics

Metrics grouped by scope.

The scope defines the instance that the metric belongs to. An instance is uniquely identified by a set of labels.

global

These metrics refer to the entire monitored application.

This scope has no labels.

Metrics:

Metric	Dimensions	Unit
openvpn.active_clients	clients	clients
openvpn.total_traffic	in, out	kilobits/s

user

These metrics refer to the VPN user.

Labels:

Label	Description
username	VPN username

Metrics:

Metric	Dimensions	Unit
openvpn.user_traffic	in, out	kilobits/s
openvpn.user_connection_time	time	seconds

Setup

Prerequisites

Enable in go.d.conf.

This collector is disabled by default. You need to explicitly enable it in go.d.conf.

From the documentation for the OpenVPN Management Interface:

Currently, the OpenVPN daemon can at most support a single management client any one time.

It is disabled to not break other tools which use Management Interface.

Configuration

File

The configuration file name is go.d/openvpn.conf.

The file format is YAML. Generally, the format is:

update_every: 1
autodetection_retry: 0
jobs:
  - name: some_name1
  - name: some_name1

You can edit the configuration file using the edit-config script from the Netdata config directory.

cd /etc/netdata 2>/dev/null || cd /opt/netdata/etc/netdata
sudo ./edit-config go.d/openvpn.conf

Options

The following options can be defined globally: update_every, autodetection_retry.

Config options

Name	Description	Default	Required
update_every	Data collection frequency.	1
autodetection_retry	Re-check interval in seconds. Zero means not to schedule re-check.	0
address	Server address in IP:PORT format.	127.0.0.1:7505	yes
per_user_stats	User selector. Determines which user metrics will be collected.
connect_timeout	Connection timeout in seconds. The timeout includes name resolution, if required.	2
read_timeout	Read timeout in seconds. Sets deadline for read calls.	2
write_timeout	Write timeout in seconds. Sets deadline for write calls.	2

per_user_stats

Metrics of users matching the selector will be collected.

Logic: (pattern1 OR pattern2) AND !(pattern3 or pattern4)
Pattern syntax: matcher.

Syntax:

per_user_stats:
  includes:
    - pattern1
    - pattern2
  excludes:
    - pattern3
    - pattern4

Examples

Basic

A basic example configuration.

Config

jobs:
  - name: local
    address: 127.0.0.1:7505

With user metrics

Collect metrics of all users.

Config

jobs:
  - name: local
    address: 127.0.0.1:7505
    per_user_stats:
      includes:
        - "* *"

Multi-instance

Note: When you define multiple jobs, their names must be unique.

Collecting metrics from local and remote instances.

Config

jobs:
  - name: local
    address: 127.0.0.1:7505

  - name: remote
    address: 203.0.113.0:7505

Troubleshooting

Debug mode

To troubleshoot issues with the openvpn collector, run the go.d.plugin with the debug option enabled. The output should give you clues as to why the collector isn't working.

Navigate to the plugins.d directory, usually at /usr/libexec/netdata/plugins.d/. If that's not the case on your system, open netdata.conf and look for the plugins setting under [directories].
```
cd /usr/libexec/netdata/plugins.d/
```
Switch to the netdata user.
```
sudo -u netdata -s
```
Run the go.d.plugin to debug the collector:
```
./go.d.plugin -d -m openvpn
```

Documentation ¶

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type Charts ¶

type Charts = module.Charts

Charts is an alias for module.Charts

type Config ¶

type Config struct {
	Address        string
	ConnectTimeout web.Duration       `yaml:"connect_timeout"`
	ReadTimeout    web.Duration       `yaml:"read_timeout"`
	WriteTimeout   web.Duration       `yaml:"write_timeout"`
	PerUserStats   matcher.SimpleExpr `yaml:"per_user_stats"`
}

Config is the OpenVPN module configuration.

type Dims ¶

type Dims = module.Dims

Dims is an alias for module.Dims

type OpenVPN ¶

type OpenVPN struct {
	module.Base
	Config `yaml:",inline"`
	// contains filtered or unexported fields
}

OpenVPN OpenVPN module.

func New ¶

func New() *OpenVPN

New creates OpenVPN with default values.

func (OpenVPN) Charts ¶

func (o OpenVPN) Charts() *Charts

Charts creates Charts.

func (*OpenVPN) Check ¶

func (o *OpenVPN) Check() bool

Check makes check.

func (*OpenVPN) Cleanup ¶

func (o *OpenVPN) Cleanup()

Cleanup makes cleanup.

func (*OpenVPN) Collect ¶

func (o *OpenVPN) Collect() map[string]int64

Collect collects metrics.

func (*OpenVPN) Init ¶

func (o *OpenVPN) Init() bool

Init makes initialization.

Source Files ¶

View all Source files

Directories ¶

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