homeserver: enabled openvpn
This commit is contained in:
parent
dab8841e4d
commit
b1156f42fb
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@ -14,6 +14,10 @@
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hostname = lib.mkOption {
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type = lib.types.str;
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};
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networking.externalInterface = lib.mkOption {
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type = lib.types.str;
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default = "eth0";
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};
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user = {
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name = lib.mkOption {
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@ -11,5 +11,6 @@ in
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samba.enable = mkEnableOption "samba";
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nextcloud.enable = mkEnableOption "nextcloud";
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syncthing.enable = mkEnableOption "syncthing";
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openvpn.enable = mkEnableOption "openvpn";
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};
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}
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@ -6,6 +6,7 @@
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profile = {
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hostname = "homeserver";
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networking.externalInterface = "enp9s0";
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user = {
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name = "homeserver";
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fullName = "Homeserver";
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@ -33,6 +34,7 @@
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samba.enable = true;
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nextcloud.enable = true;
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syncthing.enable = true;
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openvpn.enable = true;
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};
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};
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}
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24
secrets/openvpn.yaml
Normal file
24
secrets/openvpn.yaml
Normal file
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@ -0,0 +1,24 @@
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openvpn:
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key:
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phone: ENC[AES256_GCM,data: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,iv:y6rP58/eIdMOWK1KsIYOL3pve4ew8mLQZBmIWjVWRCM=,tag:PlUTapNdWwkVKqy2yzLTdQ==,type:str]
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laptop: ENC[AES256_GCM,data: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,iv:s8yYzh/sF2Nb+fnr+/X9GhGCg2Ft/bNJk5L+FQhG3nU=,tag:NT7jH148RvcjnmsarL9qZQ==,type:str]
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sops:
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kms: []
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gcp_kms: []
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azure_kv: []
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hc_vault: []
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age:
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- recipient: age1kruum2varzua7w5n6n52vhwyek2arc685rhcwt0u7k2jf5mecsjslkl9ll
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enc: |
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-----BEGIN AGE ENCRYPTED FILE-----
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YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBtbnpHV0dlaWxXSDNnYnBa
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NDhaMWdEMDB2allPUm9MUll0QVNWUmNNZlN3CkUxNFF6YmMxMjdWRDlMMTNHZUNq
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YVJDQWZWT1pVWkFDMVA1ank1amUySjQKLS0tIEs2SFNWTEhLRjdaM2sya3FmYVdP
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NmVZSk5jUUs3ZnhCTC9NOEQ1WkRJem8KvwC+Tc67NgV6rJM9vdfWbVaJSrX7xZS4
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aRvTzGL4Q2e+BnrFcyX8QiiZFgEUGEbk6MYbPELeGapwW79WvHzP8A==
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-----END AGE ENCRYPTED FILE-----
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lastmodified: "2024-06-14T06:31:34Z"
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mac: ENC[AES256_GCM,data:dbnrwOcg8HrzIvG42rUAX9/p3/SfRlHA6ReMKFtVXESIvIrwfagbFPO8I5CspMyy/sqNhxPj2Pe05oBP6193SbfTTrKFVO+7X7085G2Yl/8EJD89a9hQN94SfzAqGs4NQHUI/YlO+piVLeVklhRhu+rwFnOmQ72nwVo+GKR/Rw0=,iv:A0oX4yu70ufZogYnTmewa5/w7W55BEsl4h1ppbd/Qwk=,tag:aVuwzS4I8nRVNIcXiFQOJA==,type:str]
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pgp: []
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unencrypted_suffix: _unencrypted
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version: 3.8.1
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@ -8,5 +8,6 @@
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./nextcloud.nix
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./syncthing.nix
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./kavita.nix
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./openvpn.nix
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];
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}
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124
system/services/openvpn.nix
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124
system/services/openvpn.nix
Normal file
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@ -0,0 +1,124 @@
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# It's a pain setting up Certificate Authority, Public Key Infrastructure, etc. for OpenVPN.
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# Instead setup multiple openvpn servers with multiple ports, with each server having one client.
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#
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# Does not scale well, but it's good enough for personal use.
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#
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# TODO: Create CA, and ROOTCA, and use them to sign the keys, then store in sops-nix secrets.
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{ config, lib, pkgs, ... }:
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let
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cfg = config.profile.services.openvpn;
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domain = "vpn.tigor.web.id";
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portLaptop = 1194;
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portPhone = 1195;
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vpn-dev-laptop = "tun0";
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vpn-dev-phone = "tun1";
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externalInterface = config.profile.networking.externalInterface;
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inherit (lib) mkIf;
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in
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{
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config = mkIf cfg.enable {
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environment.systemPackages = [ pkgs.openvpn ]; # To generate keys with openvpn --genkey --secret <name>.key
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networking.nat = {
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enable = true;
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inherit externalInterface;
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internalInterfaces = [ vpn-dev-laptop vpn-dev-phone ];
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};
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networking.firewall.trustedInterfaces = [ vpn-dev-laptop vpn-dev-phone ];
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networking.firewall.allowedUDPPorts = [ portLaptop portPhone ];
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sops = {
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# Activate the secrets.
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secrets =
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let
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opts = {
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sopsFile = ../../secrets/openvpn.yaml;
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};
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in
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{
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"openvpn/key/phone" = opts;
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"openvpn/key/laptop" = opts;
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};
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# This section creates .ovpn files for the clients in /etc/openvpn folder. These should be shared with the clients.
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templates =
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let
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template = { placeholder, port, ifConfig }: ''
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dev tun
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remote "${domain}"
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port ${toString port}
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ifconfig ${ifConfig}
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redirect-gateway def1
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cipher AES-256-CBC
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auth-nocache
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comp-lzo
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keepalive 10 60
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resolv-retry infinite
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nobind
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persist-key
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persist-tun
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secret [inline]
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<secret>
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${placeholder}
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</secret>
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'';
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in
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{
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"openvpn/key/phone" = {
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content = template {
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placeholder = config.sops.placeholder."openvpn/key/phone";
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port = portPhone;
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ifConfig = "10.8.1.1 10.8.1.2";
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};
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path = "/etc/openvpn/phone.ovpn";
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owner = config.profile.user.name;
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};
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"openvpn/key/laptop" = {
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content = template {
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placeholder = config.sops.placeholder."openvpn/key/laptop";
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port = portLaptop;
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ifConfig = "10.8.2.1 10.8.2.2";
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};
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path = "/etc/openvpn/laptop.ovpn";
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owner = config.profile.user.name;
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};
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};
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};
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services.openvpn.servers =
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let
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configTemplate = { secretFile, port, dev }: ''
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dev ${dev}
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proto udp
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secret ${secretFile}
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port ${toString port}
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cipher AES-256-CBC
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auth-nocache
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comp-lzo
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keepalive 10 60
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ping-timer-rem
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persist-tun
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persist-key
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'';
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in
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{
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phone = {
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config = configTemplate { secretFile = config.sops.secrets."openvpn/key/phone".path; port = portPhone; dev = vpn-dev-phone; };
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autoStart = true;
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};
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laptop = {
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config = configTemplate { secretFile = config.sops.secrets."openvpn/key/laptop".path; port = portLaptop; dev = vpn-dev-laptop; };
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autoStart = true;
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};
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};
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};
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}
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