The two new options make it possible to create the interface in one namespace and move it to a different one, as explained at https://www.wireguard.com/netns/.
		
			
				
	
	
		
			81 lines
		
	
	
		
			2.3 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
			
		
		
	
	
			81 lines
		
	
	
		
			2.3 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
let
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  listenPort = 12345;
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  socketNamespace = "foo";
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  interfaceNamespace = "bar";
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  node = {
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    networking.wireguard.interfaces.wg0 = {
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      listenPort = listenPort;
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      ips = [ "10.10.10.1/24" ];
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      privateKeyFile = "/etc/wireguard/private";
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      generatePrivateKeyFile = true;
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    };
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  };
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in
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import ../make-test.nix ({ pkgs, ...} : {
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  name = "wireguard-with-namespaces";
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  meta = with pkgs.stdenv.lib.maintainers; {
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    maintainers = [ asymmetric ];
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  };
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  nodes = {
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    # interface should be created in the socketNamespace
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    # and not moved from there
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    peer0 = pkgs.lib.attrsets.recursiveUpdate node {
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      networking.wireguard.interfaces.wg0 = {
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        preSetup = ''
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          ip netns add ${socketNamespace}
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        '';
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        inherit socketNamespace;
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      };
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    };
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    # interface should be created in the init namespace
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    # and moved to the interfaceNamespace
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    peer1 = pkgs.lib.attrsets.recursiveUpdate node {
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      networking.wireguard.interfaces.wg0 = {
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        preSetup = ''
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          ip netns add ${interfaceNamespace}
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        '';
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        inherit interfaceNamespace;
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      };
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    };
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    # interface should be created in the socketNamespace
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    # and moved to the interfaceNamespace
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    peer2 = pkgs.lib.attrsets.recursiveUpdate node {
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      networking.wireguard.interfaces.wg0 = {
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        preSetup = ''
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          ip netns add ${socketNamespace}
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          ip netns add ${interfaceNamespace}
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        '';
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        inherit socketNamespace interfaceNamespace;
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      };
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    };
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    # interface should be created in the socketNamespace
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    # and moved to the init namespace
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    peer3 = pkgs.lib.attrsets.recursiveUpdate node {
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      networking.wireguard.interfaces.wg0 = {
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        preSetup = ''
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          ip netns add ${socketNamespace}
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        '';
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        inherit socketNamespace;
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        interfaceNamespace = "init";
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      };
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    };
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  };
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  testScript = ''
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    startAll();
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    $peer0->waitForUnit("wireguard-wg0.service");
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    $peer1->waitForUnit("wireguard-wg0.service");
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    $peer2->waitForUnit("wireguard-wg0.service");
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    $peer3->waitForUnit("wireguard-wg0.service");
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    $peer0->succeed("ip -n ${socketNamespace} link show wg0");
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    $peer1->succeed("ip -n ${interfaceNamespace} link show wg0");
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    $peer2->succeed("ip -n ${interfaceNamespace} link show wg0");
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    $peer3->succeed("ip link show wg0");
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  '';
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})
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