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nixpkgs/nixos/modules/services/networking/haproxy.nix
Eelco Dolstra 29027fd1e1 Rewrite ‘with pkgs.lib’ -> ‘with lib’
Using pkgs.lib on the spine of module evaluation is problematic
because the pkgs argument depends on the result of module
evaluation. To prevent an infinite recursion, pkgs and some of the
modules are evaluated twice, which is inefficient. Using ‘with lib’
prevents this problem.
2014-04-14 16:26:48 +02:00

88 lines
2.1 KiB
Nix

{ 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;
};
}