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Nix

/*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/.
*/
(import ./lib.nix)
{
name = "ring connection";
nodes = {
# `self` here is set by using specialArgs in `lib.nix`
node1 = { self, pkgs, ... }: {
virtualisation.vlans = [ 1 ];
imports = [ self.nixosModules.default ];
wirenix = {
enable = true;
aclConfig = import ./acls/ring.nix;
};
environment.etc."wg-key" = {
text = "MIELhEc0I7BseAanhk/+LlY/+Yf7GK232vKWITExnEI=";
};
networking.firewall.enable = false;
};
node2 = { self, pkgs, ... }: {
virtualisation.vlans = [ 1 ];
imports = [ self.nixosModules.default ];
wirenix = {
enable = true;
keyProviders = ["acl"];
aclConfig = import ./acls/ring.nix;
};
environment.etc."wg-key" = {
text = "yG4mJiduoAvzhUJMslRbZwOp1gowSfC+wgY8B/Mul1M=";
};
networking.firewall.enable = false;
};
node3 = { self, pkgs, ... }: {
virtualisation.vlans = [ 1 ];
imports = [ self.nixosModules.default ];
wirenix = {
enable = true;
keyProviders = ["acl"];
peerName = "node3";
aclConfig = import ./acls/ring.nix;
};
environment.etc."wg-key" = {
text = "yPcTvQOK9eVXQjLNapOsv2iAkbOeSzCCxlrWPMe1o0g=";
};
networking.firewall.enable = false;
};
node4 = { self, pkgs, ... }: {
virtualisation.vlans = [ 1 ];
imports = [ self.nixosModules.default ];
wirenix = {
enable = true;
keyProviders = ["acl"];
peerName = "node4";
aclConfig = import ./acls/ring.nix;
};
environment.etc."wg-key" = {
text = "CLREBQ+oGXsGxhlQc3ufSoBd7MNFoM6KmMnNyuQ9S0E=";
};
networking.firewall.enable = false;
};
};
# This is the test code that will check if our service is running correctly:
testScript = ''
start_all()
nodes = {
"node1": node1,
"node2": node2,
"node3": node3,
"node4": node4
}
connections = {
"node1": ["node2", "node4"],
"node2": ["node3", "node1"],
"node3": ["node4", "node2"],
"node4": ["node1", "node3"]
}
for local_name, local_node in nodes.items():
for remote_name in connections[local_name]:
local_node.wait_for_unit(f"wireguard-ring-peer-{remote_name}")
for local_name, local_node in nodes.items():
local_node.succeed("wg show >&2")
for remote_name in set(nodes.keys()) - set([local_name]):
local_node.succeed(f"ping -c 1 {remote_name} >&2")
if remote_name in connections[local_name]:
local_node.succeed(f"ping -c 1 {remote_name}.ring >&2")
else:
local_node.fail(f"ping -c 1 -W 1 {remote_name}.ring")
'';
}