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|
{ lib, pkgs }:
let
checkNetwork =
hosts:
let
pkg = pkgs.writeShellApplication {
name = "check-network";
runtimeInputs = [ pkgs.unixtools.ping ];
text = ''
(${lib.concatMapStringsSep " && " (host: "ping -c 1 ${host}") hosts}) || kill -s SIGUSR1 $$
'';
};
in
"${pkg}/bin/check-network";
in
{
home.serviceWithTimer =
name:
{
Unit,
Service,
# Timer,
Install,
...
}@config:
{
services.${name} = { inherit (config) Unit Service; };
timers.${name} = {
inherit (config) Unit Install;
Timer = config.Timer // {
Unit = "${name}.service";
};
};
};
home.checkNetwork =
{
hosts,
restart ? true,
}:
{
# Check network connectivity
Unit = {
StartLimitIntervalSec = 300;
StartLimitBurst = 5;
};
Service = lib.mkMerge [
{
ExecStartPre = checkNetwork hosts;
}
(lib.mkIf restart {
Restart = "on-abort";
RestartSec = 30;
RestartMode = "direct"; # dependent units will not fail
})
];
};
checkNetwork =
{
hosts,
restart ? true,
}:
{
# Check network connectivity
preStart = checkNetwork hosts;
unitConfig = {
StartLimitIntervalSec = 300;
StartLimitBurst = 5;
};
serviceConfig = lib.mkIf restart {
Restart = "on-abort";
RestartSec = 30;
RestartMode = "direct"; # dependent units will not fail
};
};
}
|
