ovpn-admin

Simple web UI to manage OpenVPN users, their certificates & routes in Linux. While backend is written in Go, frontend is based on Vue.js.

Originally created in Flant for internal needs & used for years, then updated to be more modern and publicly released in March'21. Your contributions are welcome!

Features

• Adding OpenVPN users (generating certificates for them);
• Revoking/restoring users certificates;
• Generating ready-to-user config files;
• Providing metrics for Prometheus, including certificates expiration date, number of (connected/total) users, information about connected users;
• (optionally) Specifying CCD (client-config-dir) for each user;
• (optionally) Operating in a master/slave mode (syncing certs & CCD with other server);
• (optionally) Specifying/changing password for additional authorization in OpenVPN.

Screenshots

Managing users in ovpn-admin:

An example of dashboard made using ovpn-admin metrics:

Installation

Disclaimer

This tool uses external calls for bash, coreutils and easy-rsa, thus Linux systems only are supported at the moment.

1. Docker

There is a ready-to-use docker-compose.yaml, so you can just change/add values you need and start it with start.sh.

Requirements. You need Docker and docker-compose installed.

Commands to execute:

git clone https://github.com/flant/ovpn-admin.git
cd ovpn-admin
./start.sh

2. Building from source

Requirements. You need Linux with the following components installed:

• golang
• packr2
• nodejs/npm

Commands to execute:

git clone https://github.com/flant/ovpn-admin.git
cd ovpn-admin
./bootstrap.sh
./build.sh
./ovpn-admin 

(Please don't forgot to configure all needed params in advance.)

3. Prebuilt binary (WIP)

You can also download and use prebuilt binaries from the releases page — just choose a relevant tar.gz file.

If you want to use password auth (--auth flag) you have to install openvpn-user - just make it available throw PATH variable and don`t forget about execution rights on the binary

Usage

usage: ovpn-admin [<flags>]

Flags:
  --help                       Show context-sensitive help (also try --help-long and --help-man).
  --listen.host="0.0.0.0"      host for ovpn-admin
  --listen.port="8080"         port for ovpn-admin
  --role="master"              server role master or slave
  --master.host="http://127.0.0.1"  
                               url for master server
  --master.basic-auth.user=""  user for basic auth on master server url
  --master.basic-auth.password=""  
                               password for basic auth on master server url
  --master.sync-frequency=600  master host data sync frequency in seconds.
  --master.sync-token=TOKEN    master host data sync security token
  --ovpn.network="172.16.100.0/24"  
                               NETWORK/MASK_PREFIX for openvpn server
  --ovpn.server=HOST:PORT:PROTOCOL ...  
                               HOST:PORT:PROTOCOL for openvpn server. multiple values
  --ovpn.server.behindLB       ovpn behind k8s loadbalancer
  --ovpn.service="openvpn-external"  
                               ovpn behind k8s service with type load balancer name
  --mgmt=main=127.0.0.1:8989 ...  
                               ALIAS=HOST:PORT for openvpn server mgmt interface. multiple values
  --metrics.path="/metrics"    URL path for surfacing collected metrics
  --easyrsa.path="./easyrsa/"  path to easyrsa dir
  --easyrsa.index-path="./easyrsa/pki/index.txt"  
                               path to easyrsa index file.
  --ccd                        Enable client-config-dir.
  --ccd.path="./ccd"           path to client-config-dir
  --templates.clientconfig-path=""  
                               path to custom client.conf.tpl
  --templates.ccd-path=""      path to custom ccd.tpl
  --auth.password              Enable additional password authorization.
  --auth.db="./easyrsa/pki/users.db"  
                               Database path fort password authorization.
  --debug                      Enable debug mode.
  --verbose                    Enable verbose mode.
  --version                    Show application version.

Also you can configure ovpn-admin throw environment variables

Further information

Please feel free to use issues and discussions to get help from maintainers & community.