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|
{
me,
config,
lib,
pkgs,
auxiliaryPkgs,
...
}:
let
inherit (pkgs) dockerTools;
inherit (auxiliaryPkgs) common;
torrentLocalPort = 2018;
torrentDir = "/srv/torrent";
mtu = 1280;
# gluetun openvpn likes to ignore my mtu settings,
# so we set it forcefully every 15 seconds.
#vpn-force-mtu = pkgs.writeTextFile {
# name = "vpn-force-mtu";
# destination = "/scripts/vpn-force-mtu.sh";
# executable = true;
# text = ''
# #!/bin/ash
# while true; do
# /bin/sleep 15
# /sbin/ip link set dev tun0 mtu ${toString mtu} 2>/dev/null || true
# done
# '';
#};
vpn-entry = pkgs.writeTextFile {
name = "vpn-entry";
destination = "/scripts/vpn-entry.sh";
executable = true;
text = ''
#!/bin/ash
#/scripts/vpn-force-mtu.sh &
/gluetun-entrypoint
'';
};
vpn-scripts = pkgs.symlinkJoin {
name = "vpn-scripts";
paths = [
vpn-entry
#vpn-force-mtu
];
};
gluetunImage = common.pullImage {
name = "qmcgaw/gluetun";
tag = "v3.39";
digest = "sha256:6a8058e626763cbf735ac2f78c774dbb24fec2490bd9d9f7d67e22592cb4a991";
x86.sha256 = "1cg43lmp3ql64zsfwp2f52kigijs30n3hnja12msr9npbgq8a8ga";
};
vpnImage = dockerTools.streamLayeredImage {
name = "vpn";
tag = "3.39.0-renard";
fromImage = gluetunImage.base;
contents = [ vpn-scripts ];
};
vpnCountries = [
"Albania"
"Austria"
"Belgium"
"Bulgaria"
"Croatia"
"Cyprus"
"Czech Republic"
"Spain"
"Estonia"
"Greece"
"Hungary"
"Italy"
"Poland"
"Portugal"
"Romania"
"Serbia"
"Turkey"
"Ukraine"
];
in
{
imports = [
./flood.nix
# pick current client through import
./transmission.nix
#./qbittorrent.nix
];
age.secrets.mullvad-gluetun = {
file = ../../secrets/mullvad-gluetun.age;
};
foundation = {
networks.vpn = {
enable = true;
driver = "bridge";
# we currenly avoid ipv6 for vpn.
ipv6.enable = false;
# lower MTU to prevent packet non-deliverability
inherit mtu;
};
services = {
vpn = {
network = "vpn";
image = vpnImage;
ports = [
(common.tailnetPort me [
torrentLocalPort
torrentLocalPort
])
];
volumes = [
[
"${torrentDir}/gluetun"
"/gluetun"
]
];
entrypoint = "/scripts/vpn-entry.sh";
capabilities = [ "NET_ADMIN" ];
devices = [ "/dev/net/tun" ];
environment = {
# the mullvad device representing this vpn container
# is named "driven fish".
VPN_SERVICE_PROVIDER = "mullvad";
VPN_TYPE = "wireguard";
WIREGUARD_ADDRESSES = "10.73.131.255/32";
WIREGUARD_MTU = toString mtu;
SERVER_COUNTRIES = lib.concatStringsSep "," vpnCountries;
};
environmentFiles = [ config.age.secrets.mullvad-gluetun.path ];
};
};
};
}
|
