nixos: implement socket-activation for dnscrypt-proxy

The socket definition is derived from upstream with the
exception that it does not depend on network.target, as
this creates a cycle between basic.target and sockets.target.

The apparmor profile has been updated to account for additional
runtime dependencies introduced by enabling systemd support.
This commit is contained in:
Joachim Fasting 2015-03-07 19:13:12 +01:00
parent 114cb31b65
commit 823bb5dd4d

View file

@ -7,8 +7,7 @@ let
cfg = config.services.dnscrypt-proxy;
uid = config.ids.uids.dnscrypt-proxy;
daemonArgs =
[ "--daemonize"
"--user=dnscrypt-proxy"
[ "--user=dnscrypt-proxy"
"--local-address=${cfg.localAddress}:${toString cfg.port}"
(optionalString cfg.tcpOnly "--tcp-only")
"--resolvers-list=${dnscrypt-proxy}/share/dnscrypt-proxy/dnscrypt-resolvers.csv"
@ -114,6 +113,10 @@ in
${dnscrypt-proxy}/share/dnscrypt-proxy/** r,
${pkgs.gcc.cc}/lib/libssp.so.* mr,
${pkgs.libsodium}/lib/libsodium.so.* mr,
${pkgs.systemd}/lib/libsystemd.so.* mr,
${pkgs.xz}/lib/liblzma.so.* mr,
${pkgs.libgcrypt}/lib/libgcrypt.so.* mr,
${pkgs.libgpgerror}/lib/libgpg-error.so.* mr,
}
'')
];
@ -128,13 +131,27 @@ in
### Service definition
## derived from upstream dnscrypt-proxy.socket
systemd.sockets.dnscrypt-proxy = {
description = "dnscrypt-proxy listening socket";
socketConfig = {
ListenStream = "${cfg.localAddress}:${toString cfg.port}";
ListenDatagram = "${cfg.localAddress}:${toString cfg.port}";
};
wantedBy = [ "sockets.target" ];
};
# derived from upstream dnscrypt-proxy.service
systemd.services.dnscrypt-proxy = {
description = "dnscrypt-proxy daemon";
after = [ "network.target" ] ++ optional apparmorEnabled "apparmor.service";
requires = mkIf apparmorEnabled [ "apparmor.service" ];
wantedBy = [ "multi-user.target" ];
requires = [ "dnscrypt-proxy.socket "] ++ optional apparmorEnabled "apparmor.service";
serviceConfig = {
Type = "forking";
Type = "simple";
## note: NonBlocking is required for socket activation to work
NonBlocking = "true";
ExecStart = "${dnscrypt-proxy}/bin/dnscrypt-proxy ${toString daemonArgs}";
};
};