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|
{ config, lib, pkgs, ... }:
let
cfg = config.services.haproxy;
haproxyCfg = pkgs.writeText "haproxy.conf" cfg.config;
in
with lib;
{
options = {
services.haproxy = {
enable = mkOption {
default = false;
description = "
Enable the HAProxy.
";
};
config = mkOption {
default =
''
global
log 127.0.0.1 local6
maxconn 24000
daemon
nbproc 1
defaults
mode http
option httpclose
# Remove requests from the queue if people press stop button
option abortonclose
# Try to connect this many times on failure
retries 3
# If a client is bound to a particular backend but it goes down,
# send them to a different one
option redispatch
monitor-uri /haproxy-ping
timeout connect 7s
timeout queue 300s
timeout client 300s
timeout server 300s
# Enable status page at this URL, on the port HAProxy is bound to
stats enable
stats uri /haproxy-status
stats refresh 5s
stats realm Haproxy statistics
'';
description = "
Default configuration.
";
};
};
};
config = mkIf cfg.enable {
systemd.services.haproxy = {
description = "HAProxy";
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
serviceConfig = {
Type = "forking";
PIDFile = "/var/run/haproxy.pid";
ExecStartPre = "${pkgs.haproxy}/sbin/haproxy -c -q -f ${haproxyCfg}";
ExecStart = "${pkgs.haproxy}/sbin/haproxy -D -f ${haproxyCfg} -p /var/run/haproxy.pid";
ExecReload = "-${pkgs.bash}/bin/bash -c \"exec ${pkgs.haproxy}/sbin/haproxy -D -f ${haproxyCfg} -p /var/run/haproxy.pid -sf $MAINPID\"";
};
};
environment.systemPackages = [ pkgs.haproxy ];
users.extraUsers.haproxy = {
group = "haproxy";
uid = config.ids.uids.haproxy;
};
users.extraGroups.haproxy.gid = config.ids.uids.haproxy;
};
}
|