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Merge pull request 'Passer wgautomesh en prod' (#9) from wgautomesh into main

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Reviewed-on: Deuxfleurs/nixcfg#9
This commit is contained in:
Alex 2023-03-24 11:05:29 +00:00
commit 76c8e8f0b0
9 changed files with 185 additions and 32 deletions
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10
cluster/prod/cluster.nix
View file

@ -13,7 +13,6 @@
site_name = "neptune";
publicKey = "VvXT0fPDfWsHxumZqVShpS33dJQAdpJ1E79ZbCBJP34=";
IP = "10.83.1.1";
lan_endpoint = "192.168.1.31:33799";
endpoint = "77.207.15.215:33731";
}
{
@ -21,7 +20,6 @@
site_name = "neptune";
publicKey = "goTkBJGmzrGDOAjUcdH9G0JekipqSMoaYQdB6IHnzi0=";
IP = "10.83.1.2";
lan_endpoint = "192.168.1.32:33799";
endpoint = "77.207.15.215:33732";
}
{
@ -29,7 +27,6 @@
site_name = "neptune";
publicKey = "oZDAb8LoLW87ktUHyFFec0VaIar97bqq47mGbdVqJ0U=";
IP = "10.83.1.3";
lan_endpoint = "192.168.1.33:33799";
endpoint = "77.207.15.215:33733";
}
{
@ -37,7 +34,6 @@
site_name = "orion";
publicKey = "EtRoWBYCdjqgXX0L+uWLg8KxNfIK8k9OTh30tL19bXU=";
IP = "10.83.2.1";
lan_endpoint = "192.168.1.11:33799";
endpoint = "82.66.80.201:33731";
}
{
@ -45,7 +41,6 @@
site_name = "orion";
publicKey = "HbLC938mysadMSOxWgq8+qrv+dBKzPP/43OMJp/3phA=";
IP = "10.83.2.2";
lan_endpoint = "192.168.1.12:33799";
endpoint = "82.66.80.201:33732";
}
{
@ -53,7 +48,6 @@
site_name = "orion";
publicKey = "e1C8jgTj9eD20ywG08G1FQZ+Js3wMK/msDUE1wO3l1Y=";
IP = "10.83.2.3";
lan_endpoint = "192.168.1.13:33799";
endpoint = "82.66.80.201:33733";
}
{
@ -61,7 +55,6 @@
site_name = "bespin";
publicKey = "bIjxey/VhBgVrLa0FxN/KISOt2XFmQeSh1MPivUq9gg=";
IP = "10.83.3.1";
lan_endpoint = "192.168.5.117:33799";
endpoint = "109.136.55.235:33731";
}
{
@ -69,7 +62,6 @@
site_name = "bespin";
publicKey = "pUIKv8UBl586O7DBrHBsb9BgNU7WlYQ2r2RSNkD+JAQ=";
IP = "10.83.3.2";
lan_endpoint = "192.168.5.134:33799";
endpoint = "109.136.55.235:33732";
}
{
@ -77,7 +69,6 @@
site_name = "bespin";
publicKey = "VBmpo15iIJP7250NAsF+ryhZc3j+8TZFnE1Djvn5TXI=";
IP = "10.83.3.3";
lan_endpoint = "192.168.5.116:33799";
endpoint = "109.136.55.235:33733";
}
{
@ -85,7 +76,6 @@
site_name = "scorpio";
publicKey = "Sm9cmNZ/BfWVPFflMO+fuyiera4r203b/dKhHTQmBFg=";
IP = "10.83.4.1";
lan_endpoint = "192.168.1.41:33799";
endpoint = "82.65.41.110:33741";
}
];

8
cluster/staging/cluster.nix
View file

@ -13,7 +13,6 @@
site_name = "neptune";
publicKey = "7Nm7pMmyS7Nts1MB+loyD8u84ODxHPTkDu+uqQR6yDk=";
IP = "10.14.1.2";
lan_endpoint = "192.168.1.22:33799";
endpoint = "77.207.15.215:33722";
}
{
@ -21,7 +20,6 @@
site_name = "neptune";
publicKey = "lABn/axzD1jkFulX8c+K3B3CbKXORlIMDDoe8sQVxhs=";
IP = "10.14.1.3";
lan_endpoint = "192.168.1.23:33799";
endpoint = "77.207.15.215:33723";
}
{
@ -29,7 +27,6 @@
site_name = "jupiter";
publicKey = "smBQYUS60JDkNoqkTT7TgbpqFiM43005fcrT6472llI=";
IP = "10.14.2.33";
lan_endpoint = "192.168.1.33:33799";
endpoint = "82.64.238.84:33733";
}
{
@ -37,18 +34,17 @@
site_name = "corrin";
publicKey = "m9rLf+233X1VColmeVrM/xfDGro5W6Gk5N0zqcf32WY=";
IP = "10.14.3.1";
lan_endpoint = "192.168.1.25:33799";
endpoint = "82.120.233.78:33721";
#endpoint = "82.120.233.78:33721";
}
{
hostname = "df-pw5";
site_name = "bespin";
publicKey = "XLOYoMXF+PO4jcgfSVAk+thh4VmWx0wzWnb0xs08G1s=";
IP = "10.14.4.1";
lan_endpoint = "192.168.5.130:33799";
endpoint = "bitfrost.fiber.shirokumo.net:33734";
}
];
services.wgautomesh.logLevel = "debug";
# Bootstrap IPs for Consul cluster,
# these are IPs on the Wireguard overlay

1
cluster/staging/known_hosts
View file

@ -8,3 +8,4 @@ piranha.polyno.me,2a01:cb05:8984:3c00:223:24ff:feb0:ea82 ssh-ed25519 AAAAC3NzaC1
2001:910:1204:1::21 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPXTUrXRFhudJBESCqjHCOttzqYPyIzpPOMkI8+SwLRx
2a01:e0a:5e4:1d0:223:24ff:feaf:fdec ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIAsZas74RT6lCZwuUOPR23nPdbSdpWORyAmRgjoiMVHK
df-pw5.machine.deuxfleurs.fr ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIK/dJIxioCkfeehxeGiZR7qquYGoqEH/YrRJ/ukEcaLH
10.14.3.1 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJnpO6zpLWsyyugOoOj+2bUow9TUrcWgURFGGaoyu+co

4
cluster/staging/ssh_config
View file

@ -10,7 +10,9 @@ Host origan
HostName origan.df.trinity.fr.eu.org
Host piranha
HostName piranha.polyno.me
ProxyJump caribou.machine.deuxfleurs.fr
HostName 10.14.3.1
#HostName piranha.polyno.me
Host df-pw5
HostName df-pw5.machine.deuxfleurs.fr

7
deploy_nixos
View file

@ -7,6 +7,10 @@ copy cluster/$CLUSTER/cluster.nix /etc/nixos/cluster.nix
copy cluster/$CLUSTER/node/$NIXHOST.nix /etc/nixos/node.nix
copy cluster/$CLUSTER/node/$NIXHOST.site.nix /etc/nixos/site.nix
cmd mkdir -p /var/lib/wgautomesh
write_pass deuxfleurs/cluster/$CLUSTER/wgautomesh_gossip_secret /var/lib/wgautomesh/gossip_secret
copy nix/wgautomesh.nix /etc/nixos/wgautomesh.nix
if [ "$CLUSTER" = "staging" ]; then
copy nix/nomad-driver-nix2.nix /etc/nixos/nomad-driver-nix2.nix
fi
@ -14,6 +18,9 @@ fi
if [ "$CLUSTER" = "prod" ]; then
cmd nixos-rebuild boot
message "-------------------------------------------------------------------------------------"
message "NIXOS CHANGES THAT WOULD BE APPLIED UPON SWITCH OR REBOOT:"
cmd nixos-rebuild dry-activate
message "-------------------------------------------------------------------------------------"
message "New NixOS configuration hasn't been applied, to avoid disturbing production services."
message "Please apply the following procedure to node '$NIXHOST':"
message "1. Drain node in Nomad so that all jobs are relocated elsewhere"

1
doc/ports
View file

@ -16,6 +16,7 @@ ports so that we can avoid conflicts when adding services.
587 postfix submission
993 dovecot imaps
1337 dovecot zauthoentication
1666 wgautomesh
1728 nix-serve
3719 grafana
3900 garage S3 (prod)

3
nix/configuration.nix
View file

@ -84,5 +84,8 @@ SystemMaxUse=1G
dns = [ "172.17.0.1" ];
})}";
};
nix.gc.automatic = true;
nix.gc.options = "--delete-older-than 30d";
}

54
nix/deuxfleurs.nix
View file

@ -28,12 +28,8 @@ in
};
endpoint = mkOption {
type = nullOr str;
description = "Wireguard endpoint on the public Internet";
};
lan_endpoint = mkOption {
type = nullOr str;
description = "Wireguard endpoint for nodes in the same site";
default = null;
description = "Wireguard endpoint on the public Internet";
};
};
};
@ -134,6 +130,10 @@ in
};
};
imports = [
./wgautomesh.nix
];
config =
let node_meta = {
"site" = cfg.site_name;
@ -147,6 +147,7 @@ in
else {});
in
{
# Configure admin accounts on all nodes
users.users = builtins.mapAttrs (name: publicKeys: {
isNormalUser = true;
@ -233,20 +234,43 @@ in
services.resolved.enable = false;
# Configure Wireguard VPN between all nodes
systemd.services."wg-quick-wg0".after = [ "unbound.service" ];
networking.wg-quick.interfaces.wg0 = {
address = [ "${cfg.cluster_ip}/16" ];
networking.wireguard.interfaces.wg0 = {
ips = [ "${cfg.cluster_ip}/16" ];
listenPort = cfg.wireguard_port;
privateKeyFile = "/var/lib/deuxfleurs/wireguard-keys/private";
mtu = 1420;
peers = map ({ publicKey, endpoint, IP, site_name, lan_endpoint, ... }: {
publicKey = publicKey;
allowedIPs = [ "${IP}/32" ];
endpoint = if site_name != null && site_name == cfg.site_name && lan_endpoint != null
then lan_endpoint else endpoint;
persistentKeepalive = 25;
};
services.wgautomesh = {
enable = true;
interface = "wg0";
gossipPort = 1666;
gossipSecretFile = "/var/lib/wgautomesh/gossip_secret";
persistFile = "/var/lib/wgautomesh/state";
upnpForwardPublicPort =
let
us = filter ({ hostname, ...}: hostname == config.networking.hostName) cfg.cluster_nodes;
in
if length us > 0 && (head us).endpoint != null then
strings.toInt (lists.last (split ":" (head us).endpoint))
else null;
peers = map ({ publicKey, endpoint, IP, ... }: {
address = IP;
pubkey = publicKey;
endpoint = endpoint;
}) cfg.cluster_nodes;
};
# Old code for wg-quick, we can use this as a fallback if we fail to make wgautomesh work
# systemd.services."wg-quick-wg0".after = [ "unbound.service" ];
# networking.wg-quick.interfaces.wg0 = {
# address = [ "${cfg.cluster_ip}/16" ];
# listenPort = cfg.wireguard_port;
# privateKeyFile = "/var/lib/deuxfleurs/wireguard-keys/private";
# mtu = 1420;
# peers = map ({ publicKey, endpoint, IP, ... }: {
# inherit publicKey endpoint;
# allowedIPs = [ "${IP}/32" ];
# persistentKeepalive = 25;
# };
system.activationScripts.generate_df_wg_key = ''
if [ ! -f /var/lib/deuxfleurs/wireguard-keys/private ]; then
@ -303,7 +327,7 @@ in
services.nomad.enable = true;
systemd.services.nomad.after = [ "wg-quick-wg0.service" ];
services.nomad.package = pkgs.nomad_1_3;
services.nomad.package = pkgs.nomad_1_4;
services.nomad.extraPackages = [
pkgs.glibc
pkgs.zstd

129
nix/wgautomesh.nix Normal file
View file

@ -0,0 +1,129 @@
let
wgautomesh = builtins.fetchTarball {
url = "https://git.deuxfleurs.fr/attachments/ce203833-1ae7-43d4-9bf4-b49b560c9f4b";
sha256 = "sha256:1kc990s7xkwff53vs6c3slg7ljsyr9xz1i13j61ivfj6djyh8rmj";
};
in
{ lib, config, pkgs, ... }:
with lib;
let
cfg = config.services.wgautomesh;
in
with builtins;
{
options.services.wgautomesh = {
enable = mkEnableOption "wgautomesh";
logLevel = mkOption {
type = types.enum [ "trace" "debug" "info" "warn" "error" ];
default = "info";
description = "wgautomesh log level (trace/debug/info/warn/error)";
};
interface = mkOption {
type = types.str;
description = "Wireguard interface to manage";
};
gossipPort = mkOption {
type = types.port;
description = "wgautomesh gossip port";
};
gossipSecretFile = mkOption {
type = types.nullOr types.str;
description = "File containing the gossip secret encryption key";
};
persistFile = mkOption {
type = types.nullOr types.str;
description = "Path where to persist known peer addresses";
};
lanDiscovery = mkOption {
type = types.bool;
default = true;
description = "Enable discovery using LAN broadcast";
};
openFirewall = mkOption {
type = types.bool;
default = true;
description = "Automatically open gossip port in firewall";
};
upnpForwardPublicPort = mkOption {
type = types.nullOr types.port;
default = null;
description = "Public port number to try to redirect to this machine using UPnP IGD";
};
peers = mkOption {
type = types.listOf (types.submodule {
options = {
pubkey = mkOption {
type = types.str;
description = "Wireguard public key";
};
address = mkOption {
type = types.str;
description = "Wireguard peer address";
};
endpoint = mkOption {
type = types.nullOr types.str;
description = "bootstrap endpoint";
};
};
});
description = "wgautomesh peer list";
};
};
config = mkIf cfg.enable (
let
peerDefs = map (peer:
let endpointDef = if peer.endpoint == null then ""
else ''endpoint = "${peer.endpoint}"'';
in
''
[[peers]]
pubkey = "${peer.pubkey}"
address = "${peer.address}"
${endpointDef}
'') cfg.peers;
extraDefs = (if cfg.lanDiscovery then ["lan_discovery = true"] else [])
++ (if (cfg.gossipSecretFile != null)
then [''gossip_secret_file = "${cfg.gossipSecretFile}"''] else [])
++ (if (cfg.persistFile != null)
then [''persist_file = "${cfg.persistFile}"''] else [])
++ (if (cfg.upnpForwardPublicPort != null)
then [''upnp_forward_external_port = ${toString cfg.upnpForwardPublicPort}''] else []);
configfile = pkgs.writeText "wgautomesh.toml" ''
interface = "${cfg.interface}"
gossip_port = ${toString cfg.gossipPort}
${concatStringsSep "\n" extraDefs}
${concatStringsSep "\n" peerDefs}
'';
in {
systemd.services.wgautomesh = {
enable = true;
path = [ pkgs.wireguard-tools ];
environment = {
RUST_LOG = "wgautomesh=${cfg.logLevel}";
};
description = "wgautomesh";
serviceConfig = {
Type = "simple";
ExecStart = "${wgautomesh}/bin/wgautomesh ${configfile}";
Restart = "always";
RestartSec = "30";
ExecStartPre = [ "+${pkgs.coreutils}/bin/chown wgautomesh /var/lib/wgautomesh/gossip_secret" ];
DynamicUser = true;
User = "wgautomesh";
StateDirectory = "wgautomesh";
StateDirectoryMode = "0700";
AmbientCapabilities = "CAP_NET_ADMIN";
CapabilityBoundingSet = "CAP_NET_ADMIN";
};
wantedBy = [ "multi-user.target" ];
};
networking.firewall.allowedUDPPorts = mkIf cfg.openFirewall [ cfg.gossipPort ];
});
}