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Merge pull request #140890 from seb314/wireguard/dyndns-restart-on-failure

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wireguard: non-invasive fix for permanent disconnects on unstable network (e.g. laptops) from dyndns endpoints
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Artturi 2022-12-02 17:47:47 +02:00 committed by GitHub
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24
nixos/modules/services/networking/wireguard.nix
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@ -251,6 +251,21 @@ let
'';
};
dynamicEndpointRefreshRestartSeconds = mkOption {
default = null;
example = 5;
type = with types; nullOr ints.unsigned;
description = lib.mdDoc ''
When the dynamic endpoint refresh that is configured via
dynamicEndpointRefreshSeconds exits (likely due to a failure),
restart that service after this many seconds.
If set to `null` the value of
{option}`networking.wireguard.dynamicEndpointRefreshSeconds`
will be used as the default.
'';
};
persistentKeepalive = mkOption {
default = null;
type = with types; nullOr int;
@ -348,7 +363,16 @@ let
# cannot be used with systemd timers (see `man systemd.timer`),
# which is why `simple` with a loop is the best choice here.
# It also makes starting and stopping easiest.
#
# Restart if the service exits (e.g. when wireguard gives up after "Name or service not known" dns failures):
Restart = "always";
RestartSec = if null != peer.dynamicEndpointRefreshRestartSeconds
then peer.dynamicEndpointRefreshRestartSeconds
else peer.dynamicEndpointRefreshSeconds;
};
unitConfig = lib.optionalAttrs dynamicRefreshEnabled {
StartLimitIntervalSec = 0;
};
script = let
wg_setup = concatStringsSep " " (