Fish functions to generate & add wireguard client config file.

wireguard.fish

function generate_wg_client
    
    mkdir /home/mdrokz/wireguard/$argv[1]
    
    cd /home/mdrokz/wireguard/$argv[1]
    
    umask 077
    
    touch $argv[1].conf
    
    wg genkey > $argv[1].key
    wg pubkey < $argv[1].key > $argv[1].pub
    wg genpsk > $argv[1].psk
    
    echo "[Interface]" >> $argv[1].conf
    echo "Address = $argv[2]/32" >> $argv[1].conf
    echo "PrivateKey = " (cat $argv[1].key) >> $argv[1].conf
    
    echo "\n" >> $argv[1].conf
    echo "[Peer]" >> $argv[1].conf
    echo "Endpoint = $argv[3]:49312" >> $argv[1].conf
    echo "AllowedIPs = 10.254.0.0/24" >> $argv[1].conf
    echo "PublicKey = " (sudo cat /etc/wireguard/server.pub) >> $argv[1].conf
    echo "PresharedKey = " (cat $argv[1].psk) >> $argv[1].conf
    
end

function add_wg_client
    cd /home/mdrokz/wireguard/server/
    echo "[Peer]" >> wg0.conf
    echo "PublicKey =" (cat /home/mdrokz/wireguard/$argv[1]/$argv[1].pub) >> wg0.conf
    echo "PresharedKey =" (cat /home/mdrokz/wireguard/$argv[1]/$argv[1].psk) >> wg0.conf
    echo "AllowedIPs = $argv[2]/32" >> wg0.conf
end