wireguard-management/README.md

# wireguard-management

Wireguard management and monitoring utils.

* [`wg_status`.py](https://git.hmp.today/pavel.muhortov/wireguard-management#wg_status-py)
* [`wg-client-management`.sh](https://git.hmp.today/pavel.muhortov/wireguard-management#wg-client-management-sh)
* [`wg-heavy@wg1`.service](https://git.hmp.today/pavel.muhortov/wireguard-management#wg-heavy-wg1-service)

____

## `wg_status`.py

**Description:**  
> Wireguard server status parser.  

**Dependencies:**  
>
> * privileged rights
> * [Python 3](https://www.python.org/downloads/) (tested version 3.9.5 on [Debian GNU/Linux 11](http://ftp.debian.org/debian/dists/bullseye/))
> * [requests](https://requests.readthedocs.io/) Python 3 module (tested version 2.31.0)
> * to use peer names instead of their public keys, the existence of a directory with configurations or public keys of peers is required

| PARAMETERS   |       DESCRIPTION      |    DEFAULT    |
|--------------|------------------------|---------------|
|**[-p, --peers_root]**|root path to peers configs or public keys|`/etc/wireguard/pki`|
|**[-f, --filter]**|client names filter by regex|`.*`|
|**[-g, --geo]**|check client real ip geo location (may be slow)|`None`|

Example usage with Zabbix agent:  

```bash
# install dependencies
sudo pip install requests
# download
sudo wget https://git.hmp.today/pavel.muhortov/wireguard-management/raw/branch/master/wg_status.py -O /etc/wireguard/wg_status.py
sudo chmod +x /etc/wireguard/wg_status.py
```

```bash
# edit sudoers
sudo sh -c "echo '
zabbix  ALL=(ALL) NOPASSWD:/etc/wireguard/wg_status.py
' > /etc/sudoers.d/zabbix_agentd"
# check permission
sudo -u zabbix sudo /etc/wireguard/wg_status.py
```

```bash
# add UserParameter to Zabbix agent
sudo sh -c "echo '
Timeout=30
AllowRoot=0
UserParameter=discovery.wg, sudo /etc/wireguard/wg_status.py
' >> /etc/zabbix/zabbix_agentd.conf"
sudo systemctl restart zabbix-agent
```

Download [Wireguard_by_Zabbix_agent.yaml](https://git.hmp.today/pavel.muhortov/wireguard-management/raw/branch/master/Wireguard_by_Zabbix_agent.yaml) template  
Zabbix Server -> Configuration -> Templates -> Import template

____

## `wg-client-management`.sh

**Description:**  
> Creating or deleting client config for wireguard and sending config and info to email.  

**Dependencies:**  
>
> * privileged rights
> * [wireguard](https://www.wireguard.com/) (tested version 1.0.2 on [Debian GNU/Linux 11](http://ftp.debian.org/debian/dists/bullseye/))
> * [qrencode](https://github.com/fukuchi/libqrencode) (tested version 4.1.1 on [Debian GNU/Linux 11](http://ftp.debian.org/debian/dists/bullseye/))
> * [grepcidr](https://github.com/ryantig/grepcidr) (tested version 2.0 on [Debian GNU/Linux 11](http://ftp.debian.org/debian/dists/bullseye/))
> * [Python 3](https://www.python.org/downloads/) (tested version 3.9.5 on [Debian GNU/Linux 11](http://ftp.debian.org/debian/dists/bullseye/))
> * existing [/usr/local/bin/sendmail.py](https://git.hmp.today/pavel.muhortov/utils#sendmail-py)

|  POSITION | PARAMETERS   |       DESCRIPTION      |    DEFAULT    |
|-----------|--------------|------------------------|---------------|
|     1     |**\<ifname\>**|wireguard interface name|**REQUIRED**|
|     2     |**add\|del**|add or delete client config|**REQUIRED**|
|     3     |**\<username\>**|client username|**REQUIRED**|
|     4     |**\<address\>**|client ip address|**REQUIRED**|
|     5     |**[-f]**,**[--force]**|service will restart after add\|del username||

Example usage:  

```bash
# create client config template
sudo tee /etc/wireguard/client.conf.default > /dev/null <<'EOF'
[Interface]
  Address = clientaddr/32
  PrivateKey = clientprivkey
  DNS = 1.1.1.1,8.8.8.8                       # edit this line!
[Peer]
  PublicKey = serverpublkey
  AllowedIPs = 10.0.0.0/8,192.168.0.0/16      # edit this line!
  Endpoint = server.public.address:51820      # edit this line!
  PersistentKeepalive = 5
EOF
```

```bash
# download
sudo wget https://git.hmp.today/pavel.muhortov/wireguard-management/raw/branch/master/wg-client-management.sh -O /etc/wireguard/wg-client-management.sh
sudo chmod +x /etc/wireguard/wg-client-management.sh
# create log directory
sudo mkdir /var/log/wireguard
```

```bash
# create link
ln -s /etc/wireguard/wg-client-management.sh ./wg
```

```bash
# create client
sudo ./wg wg0 add username address
```

```bash
# delete client and restart service
sudo  ./wg wg0 del username address -f
```

```bash
# check journal
tail -f /var/log/wireguard/wg.log
```

____

## `wg-heavy@wg1`.service

**Description:**  
> Launch Wireguard without creating route table.  

**Dependencies:**  
>
> * privileged rights
> * existing /etc/wireguard/wg1.conf

Example usage:  

```bash
# download
sudo wget https://git.hmp.today/pavel.muhortov/wireguard-management/raw/branch/master/wg-heavy@wg1.service -O /etc/init.d/wg-heavy@wg1.service
sudo chmod +x /etc/init.d/wg-heavy@wg1.service
```

```bash
# debian update init
sudo update-rc.d wg-heavy@wg1.service defaults
# rhel/alt update init
sudo chkconfig --add wg-heavy@wg1.service
```

```bash
# start service
sudo service wg-heavy@wg1 start
sudo service wg-heavy@wg1 status
```