nixos: init corosync, pacemaker modules

This commit is contained in:
Astro 2022-03-02 22:38:42 +01:00
parent 68c44db781
commit a60ab35dd6
3 changed files with 166 additions and 0 deletions

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@ -301,6 +301,7 @@
./services/backup/znapzend.nix
./services/blockchain/ethereum/geth.nix
./services/backup/zrepl.nix
./services/cluster/corosync/default.nix
./services/cluster/hadoop/default.nix
./services/cluster/k3s/default.nix
./services/cluster/kubernetes/addons/dns.nix
@ -313,6 +314,7 @@
./services/cluster/kubernetes/pki.nix
./services/cluster/kubernetes/proxy.nix
./services/cluster/kubernetes/scheduler.nix
./services/cluster/pacemaker/default.nix
./services/cluster/spark/default.nix
./services/computing/boinc/client.nix
./services/computing/foldingathome/client.nix

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@ -0,0 +1,112 @@
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.corosync;
in
{
# interface
options.services.corosync = {
enable = mkEnableOption "corosync";
package = mkOption {
type = types.package;
default = pkgs.corosync;
defaultText = literalExpression "pkgs.corosync";
description = "Package that should be used for corosync.";
};
clusterName = mkOption {
type = types.str;
default = "nixcluster";
description = "Name of the corosync cluster.";
};
extraOptions = mkOption {
type = with types; listOf str;
default = [];
description = "Additional options with which to start corosync.";
};
nodelist = mkOption {
description = "Corosync nodelist: all cluster members.";
default = [];
type = with types; listOf (submodule {
options = {
nodeid = mkOption {
type = int;
description = "Node ID number";
};
name = mkOption {
type = str;
description = "Node name";
};
ring_addrs = mkOption {
type = listOf str;
description = "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}"
'';
};
}

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@ -0,0 +1,52 @@
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.pacemaker;
in
{
# interface
options.services.pacemaker = {
enable = mkEnableOption "pacemaker";
package = mkOption {
type = types.package;
default = pkgs.pacemaker;
defaultText = literalExpression "pkgs.pacemaker";
description = "Package that should be used for pacemaker.";
};
};
# implementation
config = mkIf cfg.enable {
assertions = [ {
assertion = config.services.corosync.enable;
message = ''
Enabling services.pacemaker requires a services.corosync configuration.
'';
} ];
environment.systemPackages = [ cfg.package ];
# required by pacemaker
users.users.hacluster = {
isSystemUser = true;
group = "pacemaker";
home = "/var/lib/pacemaker";
};
users.groups.pacemaker = {};
systemd.tmpfiles.rules = [
"d /var/log/pacemaker 0700 hacluster pacemaker -"
];
systemd.packages = [ cfg.package ];
systemd.services.pacemaker = {
wantedBy = [ "multi-user.target" ];
serviceConfig = {
StateDirectory = "pacemaker";
StateDirectoryMode = "0700";
};
};
};
}