nixpkgs/nixos/modules/services/databases/pgmanage.nix
Daniel Schaefer 786f02f7a4 treewide: Remove usage of isNull
isNull "is deprecated; just write e == null instead" says the Nix manual
2019-04-29 14:05:50 +02:00

207 lines
6 KiB
Nix

{ lib, pkgs, config, ... } :
with lib;
let
cfg = config.services.pgmanage;
confFile = pkgs.writeTextFile {
name = "pgmanage.conf";
text = ''
connection_file = ${pgmanageConnectionsFile}
allow_custom_connections = ${builtins.toJSON cfg.allowCustomConnections}
pgmanage_port = ${toString cfg.port}
super_only = ${builtins.toJSON cfg.superOnly}
${optionalString (cfg.loginGroup != null) "login_group = ${cfg.loginGroup}"}
login_timeout = ${toString cfg.loginTimeout}
web_root = ${cfg.package}/etc/pgmanage/web_root
sql_root = ${cfg.sqlRoot}
${optionalString (cfg.tls != null) ''
tls_cert = ${cfg.tls.cert}
tls_key = ${cfg.tls.key}
''}
log_level = ${cfg.logLevel}
'';
};
pgmanageConnectionsFile = pkgs.writeTextFile {
name = "pgmanage-connections.conf";
text = concatStringsSep "\n"
(mapAttrsToList (name : conn : "${name}: ${conn}") cfg.connections);
};
pgmanage = "pgmanage";
in {
options.services.pgmanage = {
enable = mkEnableOption "PostgreSQL Administration for the web";
package = mkOption {
type = types.package;
default = pkgs.pgmanage;
defaultText = "pkgs.pgmanage";
description = ''
The pgmanage package to use.
'';
};
connections = mkOption {
type = types.attrsOf types.str;
default = {};
example = {
"nuc-server" = "hostaddr=192.168.0.100 port=5432 dbname=postgres";
"mini-server" = "hostaddr=127.0.0.1 port=5432 dbname=postgres sslmode=require";
};
description = ''
pgmanage requires at least one PostgreSQL server be defined.
</para><para>
Detailed information about PostgreSQL connection strings is available at:
<link xlink:href="http://www.postgresql.org/docs/current/static/libpq-connect.html"/>
</para><para>
Note that you should not specify your user name or password. That
information will be entered on the login screen. If you specify a
username or password, it will be removed by pgmanage before attempting to
connect to a database.
'';
};
allowCustomConnections = mkOption {
type = types.bool;
default = false;
description = ''
This tells pgmanage whether or not to allow anyone to use a custom
connection from the login screen.
'';
};
port = mkOption {
type = types.int;
default = 8080;
description = ''
This tells pgmanage what port to listen on for browser requests.
'';
};
localOnly = mkOption {
type = types.bool;
default = true;
description = ''
This tells pgmanage whether or not to set the listening socket to local
addresses only.
'';
};
superOnly = mkOption {
type = types.bool;
default = true;
description = ''
This tells pgmanage whether or not to only allow super users to
login. The recommended value is true and will restrict users who are not
super users from logging in to any PostgreSQL instance through
pgmanage. Note that a connection will be made to PostgreSQL in order to
test if the user is a superuser.
'';
};
loginGroup = mkOption {
type = types.nullOr types.str;
default = null;
description = ''
This tells pgmanage to only allow users in a certain PostgreSQL group to
login to pgmanage. Note that a connection will be made to PostgreSQL in
order to test if the user is a member of the login group.
'';
};
loginTimeout = mkOption {
type = types.int;
default = 3600;
description = ''
Number of seconds of inactivity before user is automatically logged
out.
'';
};
sqlRoot = mkOption {
type = types.str;
default = "/var/lib/pgmanage";
description = ''
This tells pgmanage where to put the SQL file history. All tabs are saved
to this location so that if you get disconnected from pgmanage you
don't lose your work.
'';
};
tls = mkOption {
type = types.nullOr (types.submodule {
options = {
cert = mkOption {
type = types.str;
description = "TLS certificate";
};
key = mkOption {
type = types.str;
description = "TLS key";
};
};
});
default = null;
description = ''
These options tell pgmanage where the TLS Certificate and Key files
reside. If you use these options then you'll only be able to access
pgmanage through a secure TLS connection. These options are only
necessary if you wish to connect directly to pgmanage using a secure TLS
connection. As an alternative, you can set up pgmanage in a reverse proxy
configuration. This allows your web server to terminate the secure
connection and pass on the request to pgmanage. You can find help to set
up this configuration in:
<link xlink:href="https://github.com/pgManage/pgManage/blob/master/INSTALL_NGINX.md"/>
'';
};
logLevel = mkOption {
type = types.enum ["error" "warn" "notice" "info"];
default = "error";
description = ''
Verbosity of logs
'';
};
};
config = mkIf cfg.enable {
systemd.services.pgmanage = {
description = "pgmanage - PostgreSQL Administration for the web";
wants = [ "postgresql.service" ];
after = [ "postgresql.service" ];
wantedBy = [ "multi-user.target" ];
serviceConfig = {
User = pgmanage;
Group = pgmanage;
ExecStart = "${pkgs.pgmanage}/sbin/pgmanage -c ${confFile}" +
optionalString cfg.localOnly " --local-only=true";
};
};
users = {
users."${pgmanage}" = {
name = pgmanage;
group = pgmanage;
home = cfg.sqlRoot;
createHome = true;
};
groups."${pgmanage}" = {
name = pgmanage;
};
};
};
}