106 lines
3.2 KiB
Nix
106 lines
3.2 KiB
Nix
{ config, lib, pkgs, ... }:
|
|
with lib;
|
|
|
|
let cfgs = config.services.podman-postgresql;
|
|
|
|
in
|
|
{
|
|
|
|
options = {
|
|
services.podman-postgresql = mkOption {
|
|
description = mdDoc "Configure a single database postgresql instance running in podman.";
|
|
default = {};
|
|
type = types.attrsOf (types.submodule ({ config, ... }: {
|
|
options = let
|
|
name = config._module.args.name;
|
|
in
|
|
{
|
|
enable = mkEnableOption (mdDoc "podman-postgresql");
|
|
|
|
image = mkOption {
|
|
description = mdDoc "The postgresql image to use.";
|
|
type = types.str;
|
|
default = "docker.io/library/postgres:alpine";
|
|
example = "docker.io/library/postgres:15-alpine";
|
|
};
|
|
|
|
database = mkOption {
|
|
description = "The name of the database to be created.";
|
|
type = types.str;
|
|
default = name;
|
|
};
|
|
|
|
user = mkOption {
|
|
description = "The owner of the database.";
|
|
type = types.str;
|
|
default = name;
|
|
};
|
|
|
|
passwordFile = mkOption {
|
|
description = "The password file for the database user.";
|
|
type = types.path;
|
|
};
|
|
|
|
port = mkOption {
|
|
description = "The port to serve postgresql on the host.";
|
|
type = types.int;
|
|
example = 54320;
|
|
};
|
|
|
|
backupPath = mkOption {
|
|
description = "The path to backup the database to.";
|
|
type = types.str;
|
|
default = "/var/backup/postgresql";
|
|
};
|
|
|
|
};
|
|
}));
|
|
};
|
|
};
|
|
|
|
config = mkIf (any (cfg: cfg.enable) (attrValues cfgs)) {
|
|
|
|
virtualisation.oci-containers.containers = mkMerge (mapAttrsToList (_: cfg: {
|
|
"postgresql-${cfg.database}" = {
|
|
image = cfg.image;
|
|
ports = [ "${(toString cfg.port)}:5432" ];
|
|
environment = {
|
|
POSTGRES_USER = cfg.user;
|
|
POSTGRES_DB = cfg.database;
|
|
POSTGRES_PASSWORD_FILE = cfg.passwordFile;
|
|
};
|
|
volumes = [
|
|
"/var/lib/postgresql/${cfg.database}:/var/lib/postgresql/data"
|
|
"${cfg.passwordFile}:${cfg.passwordFile}"
|
|
];
|
|
};
|
|
}) cfgs);
|
|
|
|
system.activationScripts = mkMerge (mapAttrsToList (_: cfg: {
|
|
"makePsql${cfg.database}Dirs" = lib.stringAfter [ "var" ] ''
|
|
mkdir -p "/var/lib/postgresql/${cfg.database}" "${cfg.backupPath}/${cfg.database}"
|
|
'';
|
|
}) cfgs);
|
|
|
|
|
|
systemd = mkMerge (mapAttrsToList (_: cfg: {
|
|
services."podman-postgresql-${cfg.database}-backup" = {
|
|
description = "Backup of ${cfg.database} database";
|
|
requisite = [ "podman-postgresql-${cfg.database}.service" ];
|
|
serviceConfig = {
|
|
ExecStart = "${pkgs.bash}/bin/bash -c '${pkgs.podman}/bin/podman exec postgresql-${cfg.database} pg_dumpall -c -U ${cfg.user} | ${pkgs.zstd}/bin/zstd -o ${cfg.backupPath}/${cfg.database}/\$(${pkgs.coreutils}/bin/date +%%F_%%R).sql.zst'" ;
|
|
Type = "oneshot";
|
|
};
|
|
};
|
|
timers."podman-postgresql-${cfg.database}-backup" = {
|
|
timerConfig = {
|
|
OnCalendar = "hourly";
|
|
};
|
|
wantedBy = [ "podman-postgresql-${cfg.database}.service" ];
|
|
};
|
|
}) cfgs);
|
|
|
|
};
|
|
|
|
}
|
|
# vim: set et ts=2 sw=2 ai:
|