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|
{ config, lib, pkgs, ...}:
let
cfg = config.services.varnish;
in
with lib;
{
options = {
services.varnish = {
enable = mkEnableOption "Varnish Server";
http_address = mkOption {
type = types.str;
default = "*:6081";
description = "
HTTP listen address and port.
";
};
config = mkOption {
type = types.lines;
description = "
Verbatim default.vcl configuration.
";
};
stateDir = mkOption {
type = types.path;
default = "/var/spool/varnish/${config.networking.hostName}";
description = "
Directory holding all state for Varnish to run.
";
};
extraModules = mkOption {
type = types.listOf types.package;
default = [];
example = literalExample "[ pkgs.varnish-geoip ]";
description = "
Varnish modules (except 'std').
";
};
extraCommandLine = mkOption {
type = types.str;
default = "";
example = "-s malloc,256M";
description = "
Command line switches for varnishd (run 'varnishd -?' to get list of options)
";
};
};
};
config = mkIf cfg.enable {
systemd.services.varnish = {
description = "Varnish";
wantedBy = [ "multi-user.target" ];
after = [ "network.target" ];
preStart = ''
mkdir -p ${cfg.stateDir}
chown -R varnish:varnish ${cfg.stateDir}
'';
postStop = ''
rm -rf ${cfg.stateDir}
'';
serviceConfig = {
Type = "simple";
PermissionsStartOnly = true;
ExecStart = "${pkgs.varnish}/sbin/varnishd -a ${cfg.http_address} -f ${pkgs.writeText "default.vcl" cfg.config} -n ${cfg.stateDir} -F ${cfg.extraCommandLine}"
+ optionalString (cfg.extraModules != []) " -p vmod_path='${makeSearchPathOutput "lib" "lib/varnish/vmods" ([pkgs.varnish] ++ cfg.extraModules)}' -r vmod_path";
Restart = "always";
RestartSec = "5s";
User = "varnish";
Group = "varnish";
AmbientCapabilities = "cap_net_bind_service";
NoNewPrivileges = true;
LimitNOFILE = 131072;
};
};
environment.systemPackages = [ pkgs.varnish ];
users.extraUsers.varnish = {
group = "varnish";
uid = config.ids.uids.varnish;
};
users.extraGroups.varnish.gid = config.ids.uids.varnish;
};
}
|