diff options
author | Astro <astro@spaceboyz.net> | 2022-03-02 22:38:42 +0100 |
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committer | Astro <astro@spaceboyz.net> | 2022-03-08 20:28:56 +0100 |
commit | a60ab35dd653b0969c014ced93396d212f1c460c (patch) | |
tree | 150c8b45276c7c8f485b759f59f4c56995f4a05c | |
parent | 68c44db781e3372f3370ced39a52b42dd8f5f059 (diff) |
nixos: init corosync, pacemaker modules
-rw-r--r-- | nixos/modules/module-list.nix | 2 | ||||
-rw-r--r-- | nixos/modules/services/cluster/corosync/default.nix | 112 | ||||
-rw-r--r-- | nixos/modules/services/cluster/pacemaker/default.nix | 52 |
3 files changed, 166 insertions, 0 deletions
diff --git a/nixos/modules/module-list.nix b/nixos/modules/module-list.nix index 6430993d5c638..446a8477803fa 100644 --- a/nixos/modules/module-list.nix +++ b/nixos/modules/module-list.nix @@ -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 diff --git a/nixos/modules/services/cluster/corosync/default.nix b/nixos/modules/services/cluster/corosync/default.nix new file mode 100644 index 0000000000000..b4144917feea9 --- /dev/null +++ b/nixos/modules/services/cluster/corosync/default.nix @@ -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}" + ''; + }; +} diff --git a/nixos/modules/services/cluster/pacemaker/default.nix b/nixos/modules/services/cluster/pacemaker/default.nix new file mode 100644 index 0000000000000..7eeadffcc586b --- /dev/null +++ b/nixos/modules/services/cluster/pacemaker/default.nix @@ -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"; + }; + }; + }; +} |