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|
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.corosync;
in
{
# interface
options.services.corosync = {
enable = mkEnableOption (lib.mdDoc "corosync");
package = mkPackageOption pkgs "corosync" { };
clusterName = mkOption {
type = types.str;
default = "nixcluster";
description = lib.mdDoc "Name of the corosync cluster.";
};
extraOptions = mkOption {
type = with types; listOf str;
default = [];
description = lib.mdDoc "Additional options with which to start corosync.";
};
nodelist = mkOption {
description = lib.mdDoc "Corosync nodelist: all cluster members.";
default = [];
type = with types; listOf (submodule {
options = {
nodeid = mkOption {
type = int;
description = lib.mdDoc "Node ID number";
};
name = mkOption {
type = str;
description = lib.mdDoc "Node name";
};
ring_addrs = mkOption {
type = listOf str;
description = lib.mdDoc "List of addresses, one for each ring.";
};
};
});
};
};
# implementation
config = mkIf cfg.enable {
environment.systemPackages = [ cfg.package ];
environment.etc."corosync/corosync.conf".text = ''
totem {
version: 2
secauth: on
cluster_name: ${cfg.clusterName}
transport: knet
}
nodelist {
${concatMapStrings ({ nodeid, name, ring_addrs }: ''
node {
nodeid: ${toString nodeid}
name: ${name}
${concatStrings (imap0 (i: addr: ''
ring${toString i}_addr: ${addr}
'') ring_addrs)}
}
'') cfg.nodelist}
}
quorum {
# only corosync_votequorum is supported
provider: corosync_votequorum
wait_for_all: 0
${optionalString (builtins.length cfg.nodelist < 3) ''
two_node: 1
''}
}
logging {
to_syslog: yes
}
'';
environment.etc."corosync/uidgid.d/root".text = ''
# allow pacemaker connection by root
uidgid {
uid: 0
gid: 0
}
'';
systemd.packages = [ cfg.package ];
systemd.services.corosync = {
wantedBy = [ "multi-user.target" ];
serviceConfig = {
StateDirectory = "corosync";
StateDirectoryMode = "0700";
};
};
environment.etc."sysconfig/corosync".text = lib.optionalString (cfg.extraOptions != []) ''
COROSYNC_OPTIONS="${lib.escapeShellArgs cfg.extraOptions}"
'';
};
}
|