218 lines
6.8 KiB
Nix
218 lines
6.8 KiB
Nix
{ config, lib, pkgs, ... }:
|
|
|
|
with lib;
|
|
|
|
let
|
|
cfg = config.services.cockroachdb;
|
|
crdb = cfg.package;
|
|
|
|
escape = builtins.replaceStrings ["%"] ["%%"];
|
|
ifNotNull = v: s: optionalString (v != null) s;
|
|
|
|
startupCommand = lib.concatStringsSep " "
|
|
[ # Basic startup
|
|
"${crdb}/bin/cockroach start"
|
|
"--logtostderr"
|
|
"--store=/var/lib/cockroachdb"
|
|
(ifNotNull cfg.locality "--locality='${cfg.locality}'")
|
|
|
|
# WebUI settings
|
|
"--http-addr='${cfg.http.address}:${toString cfg.http.port}'"
|
|
|
|
# Cluster listen address
|
|
"--listen-addr='${cfg.listen.address}:${toString cfg.listen.port}'"
|
|
|
|
# Cluster configuration
|
|
(ifNotNull cfg.join "--join=${cfg.join}")
|
|
|
|
# Cache and memory settings. Must be escaped.
|
|
"--cache='${escape cfg.cache}'"
|
|
"--max-sql-memory='${escape cfg.maxSqlMemory}'"
|
|
|
|
# Certificate/security settings.
|
|
(if cfg.insecure then "--insecure" else "--certs-dir=${cfg.certsDir}")
|
|
];
|
|
|
|
addressOption = descr: defaultPort: {
|
|
address = mkOption {
|
|
type = types.str;
|
|
default = "localhost";
|
|
description = "Address to bind to for ${descr}";
|
|
};
|
|
|
|
port = mkOption {
|
|
type = types.port;
|
|
default = defaultPort;
|
|
description = "Port to bind to for ${descr}";
|
|
};
|
|
};
|
|
in
|
|
|
|
{
|
|
options = {
|
|
services.cockroachdb = {
|
|
enable = mkEnableOption "CockroachDB Server";
|
|
|
|
listen = addressOption "intra-cluster communication" 26257;
|
|
|
|
http = addressOption "http-based Admin UI" 8080;
|
|
|
|
locality = mkOption {
|
|
type = types.nullOr types.str;
|
|
default = null;
|
|
description = ''
|
|
An ordered, comma-separated list of key-value pairs that describe the
|
|
topography of the machine. Topography might include country,
|
|
datacenter or rack designations. Data is automatically replicated to
|
|
maximize diversities of each tier. The order of tiers is used to
|
|
determine the priority of the diversity, so the more inclusive
|
|
localities like country should come before less inclusive localities
|
|
like datacenter. The tiers and order must be the same on all nodes.
|
|
Including more tiers is better than including fewer. For example:
|
|
|
|
<literal>
|
|
country=us,region=us-west,datacenter=us-west-1b,rack=12
|
|
country=ca,region=ca-east,datacenter=ca-east-2,rack=4
|
|
|
|
planet=earth,province=manitoba,colo=secondary,power=3
|
|
</literal>
|
|
'';
|
|
};
|
|
|
|
join = mkOption {
|
|
type = types.nullOr types.str;
|
|
default = null;
|
|
description = "The addresses for connecting the node to a cluster.";
|
|
};
|
|
|
|
insecure = mkOption {
|
|
type = types.bool;
|
|
default = false;
|
|
description = "Run in insecure mode.";
|
|
};
|
|
|
|
certsDir = mkOption {
|
|
type = types.nullOr types.path;
|
|
default = null;
|
|
description = "The path to the certificate directory.";
|
|
};
|
|
|
|
user = mkOption {
|
|
type = types.str;
|
|
default = "cockroachdb";
|
|
description = "User account under which CockroachDB runs";
|
|
};
|
|
|
|
group = mkOption {
|
|
type = types.str;
|
|
default = "cockroachdb";
|
|
description = "User account under which CockroachDB runs";
|
|
};
|
|
|
|
openPorts = mkOption {
|
|
type = types.bool;
|
|
default = false;
|
|
description = "Open firewall ports for cluster communication by default";
|
|
};
|
|
|
|
cache = mkOption {
|
|
type = types.str;
|
|
default = "25%";
|
|
description = ''
|
|
The total size for caches.
|
|
|
|
This can be a percentage, expressed with a fraction sign or as a
|
|
decimal-point number, or any bytes-based unit. For example,
|
|
<literal>"25%"</literal>, <literal>"0.25"</literal> both represent
|
|
25% of the available system memory. The values
|
|
<literal>"1000000000"</literal> and <literal>"1GB"</literal> both
|
|
represent 1 gigabyte of memory.
|
|
|
|
'';
|
|
};
|
|
|
|
maxSqlMemory = mkOption {
|
|
type = types.str;
|
|
default = "25%";
|
|
description = ''
|
|
The maximum in-memory storage capacity available to store temporary
|
|
data for SQL queries.
|
|
|
|
This can be a percentage, expressed with a fraction sign or as a
|
|
decimal-point number, or any bytes-based unit. For example,
|
|
<literal>"25%"</literal>, <literal>"0.25"</literal> both represent
|
|
25% of the available system memory. The values
|
|
<literal>"1000000000"</literal> and <literal>"1GB"</literal> both
|
|
represent 1 gigabyte of memory.
|
|
'';
|
|
};
|
|
|
|
package = mkOption {
|
|
type = types.package;
|
|
default = pkgs.cockroachdb;
|
|
defaultText = "pkgs.cockroachdb";
|
|
description = ''
|
|
The CockroachDB derivation to use for running the service.
|
|
|
|
This would primarily be useful to enable Enterprise Edition features
|
|
in your own custom CockroachDB build (Nixpkgs CockroachDB binaries
|
|
only contain open source features and open source code).
|
|
'';
|
|
};
|
|
};
|
|
};
|
|
|
|
config = mkIf config.services.cockroachdb.enable {
|
|
assertions = [
|
|
{ assertion = !cfg.insecure -> cfg.certsDir != null;
|
|
message = "CockroachDB must have a set of SSL certificates (.certsDir), or run in Insecure Mode (.insecure = true)";
|
|
}
|
|
];
|
|
|
|
environment.systemPackages = [ crdb ];
|
|
|
|
users.users = optionalAttrs (cfg.user == "cockroachdb") {
|
|
cockroachdb = {
|
|
description = "CockroachDB Server User";
|
|
uid = config.ids.uids.cockroachdb;
|
|
group = cfg.group;
|
|
};
|
|
};
|
|
|
|
users.groups = optionalAttrs (cfg.group == "cockroachdb") {
|
|
cockroachdb.gid = config.ids.gids.cockroachdb;
|
|
};
|
|
|
|
networking.firewall.allowedTCPPorts = lib.optionals cfg.openPorts
|
|
[ cfg.http.port cfg.listen.port ];
|
|
|
|
systemd.services.cockroachdb =
|
|
{ description = "CockroachDB Server";
|
|
documentation = [ "man:cockroach(1)" "https://www.cockroachlabs.com" ];
|
|
|
|
after = [ "network.target" "time-sync.target" ];
|
|
requires = [ "time-sync.target" ];
|
|
wantedBy = [ "multi-user.target" ];
|
|
|
|
unitConfig.RequiresMountsFor = "/var/lib/cockroachdb";
|
|
|
|
serviceConfig =
|
|
{ ExecStart = startupCommand;
|
|
Type = "notify";
|
|
User = cfg.user;
|
|
StateDirectory = "cockroachdb";
|
|
StateDirectoryMode = "0700";
|
|
|
|
Restart = "always";
|
|
|
|
# A conservative-ish timeout is alright here, because for Type=notify
|
|
# cockroach will send systemd pings during startup to keep it alive
|
|
TimeoutStopSec = 60;
|
|
RestartSec = 10;
|
|
};
|
|
};
|
|
};
|
|
|
|
meta.maintainers = with lib.maintainers; [ thoughtpolice ];
|
|
}
|