578 lines
19 KiB
Nix
578 lines
19 KiB
Nix
{ config, lib, pkgs, ... }:
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# TODO: test configuration when building nixexpr (use -t parameter)
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# TODO: support sqlite3 (it's deprecate?) and mysql
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with lib;
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let
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libDir = "/var/lib/bacula";
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fd_cfg = config.services.bacula-fd;
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fd_conf = pkgs.writeText "bacula-fd.conf"
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''
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Client {
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Name = "${fd_cfg.name}";
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FDPort = ${toString fd_cfg.port};
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WorkingDirectory = ${libDir};
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Pid Directory = /run;
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${fd_cfg.extraClientConfig}
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}
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${concatStringsSep "\n" (mapAttrsToList (name: value: ''
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Director {
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Name = "${name}";
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Password = ${value.password};
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Monitor = ${value.monitor};
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}
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'') fd_cfg.director)}
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Messages {
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Name = Standard;
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syslog = all, !skipped, !restored
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${fd_cfg.extraMessagesConfig}
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}
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'';
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sd_cfg = config.services.bacula-sd;
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sd_conf = pkgs.writeText "bacula-sd.conf"
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''
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Storage {
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Name = "${sd_cfg.name}";
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SDPort = ${toString sd_cfg.port};
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WorkingDirectory = ${libDir};
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Pid Directory = /run;
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${sd_cfg.extraStorageConfig}
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}
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${concatStringsSep "\n" (mapAttrsToList (name: value: ''
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Autochanger {
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Name = "${name}";
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Device = ${concatStringsSep ", " (map (a: "\"${a}\"") value.devices)};
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Changer Device = ${value.changerDevice};
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Changer Command = ${value.changerCommand};
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${value.extraAutochangerConfig}
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}
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'') sd_cfg.autochanger)}
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${concatStringsSep "\n" (mapAttrsToList (name: value: ''
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Device {
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Name = "${name}";
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Archive Device = ${value.archiveDevice};
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Media Type = ${value.mediaType};
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${value.extraDeviceConfig}
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}
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'') sd_cfg.device)}
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${concatStringsSep "\n" (mapAttrsToList (name: value: ''
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Director {
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Name = "${name}";
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Password = ${value.password};
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Monitor = ${value.monitor};
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}
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'') sd_cfg.director)}
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Messages {
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Name = Standard;
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syslog = all, !skipped, !restored
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${sd_cfg.extraMessagesConfig}
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}
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'';
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dir_cfg = config.services.bacula-dir;
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dir_conf = pkgs.writeText "bacula-dir.conf"
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''
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Director {
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Name = "${dir_cfg.name}";
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Password = ${dir_cfg.password};
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DirPort = ${toString dir_cfg.port};
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Working Directory = ${libDir};
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Pid Directory = /run/;
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QueryFile = ${pkgs.bacula}/etc/query.sql;
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${dir_cfg.extraDirectorConfig}
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}
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Catalog {
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Name = PostgreSQL;
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dbname = bacula;
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user = bacula;
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}
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Messages {
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Name = Standard;
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syslog = all, !skipped, !restored
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${dir_cfg.extraMessagesConfig}
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}
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${dir_cfg.extraConfig}
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'';
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directorOptions = {...}:
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{
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options = {
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password = mkOption {
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type = types.str;
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# TODO: required?
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description = lib.mdDoc ''
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Specifies the password that must be supplied for the default Bacula
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Console to be authorized. The same password must appear in the
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Director resource of the Console configuration file. For added
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security, the password is never passed across the network but instead
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a challenge response hash code created with the password. This
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directive is required. If you have either /dev/random or bc on your
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machine, Bacula will generate a random password during the
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configuration process, otherwise it will be left blank and you must
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manually supply it.
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The password is plain text. It is not generated through any special
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process but as noted above, it is better to use random text for
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security reasons.
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'';
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};
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monitor = mkOption {
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type = types.enum [ "no" "yes" ];
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default = "no";
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example = "yes";
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description = lib.mdDoc ''
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If Monitor is set to `no`, this director will have
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full access to this Storage daemon. If Monitor is set to
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`yes`, this director will only be able to fetch the
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current status of this Storage daemon.
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Please note that if this director is being used by a Monitor, we
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highly recommend to set this directive to yes to avoid serious
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security problems.
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'';
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};
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};
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};
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autochangerOptions = {...}:
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{
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options = {
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changerDevice = mkOption {
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type = types.str;
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description = lib.mdDoc ''
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The specified name-string must be the generic SCSI device name of the
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autochanger that corresponds to the normal read/write Archive Device
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specified in the Device resource. This generic SCSI device name
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should be specified if you have an autochanger or if you have a
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standard tape drive and want to use the Alert Command (see below).
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For example, on Linux systems, for an Archive Device name of
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`/dev/nst0`, you would specify
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`/dev/sg0` for the Changer Device name. Depending
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on your exact configuration, and the number of autochangers or the
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type of autochanger, what you specify here can vary. This directive
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is optional. See the Using AutochangersAutochangersChapter chapter of
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this manual for more details of using this and the following
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autochanger directives.
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'';
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};
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changerCommand = mkOption {
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type = types.str;
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description = lib.mdDoc ''
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The name-string specifies an external program to be called that will
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automatically change volumes as required by Bacula. Normally, this
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directive will be specified only in the AutoChanger resource, which
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is then used for all devices. However, you may also specify the
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different Changer Command in each Device resource. Most frequently,
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you will specify the Bacula supplied mtx-changer script as follows:
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`"/path/mtx-changer %c %o %S %a %d"`
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and you will install the mtx on your system (found in the depkgs
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release). An example of this command is in the default bacula-sd.conf
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file. For more details on the substitution characters that may be
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specified to configure your autochanger please see the
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AutochangersAutochangersChapter chapter of this manual. For FreeBSD
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users, you might want to see one of the several chio scripts in
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examples/autochangers.
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'';
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default = "/etc/bacula/mtx-changer %c %o %S %a %d";
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};
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devices = mkOption {
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description = lib.mdDoc "";
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type = types.listOf types.str;
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};
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extraAutochangerConfig = mkOption {
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default = "";
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type = types.lines;
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description = lib.mdDoc ''
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Extra configuration to be passed in Autochanger directive.
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'';
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example = ''
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'';
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};
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};
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};
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deviceOptions = {...}:
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{
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options = {
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archiveDevice = mkOption {
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# TODO: required?
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type = types.str;
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description = lib.mdDoc ''
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The specified name-string gives the system file name of the storage
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device managed by this storage daemon. This will usually be the
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device file name of a removable storage device (tape drive), for
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example `/dev/nst0` or
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`/dev/rmt/0mbn`. For a DVD-writer, it will be for
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example `/dev/hdc`. It may also be a directory name
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if you are archiving to disk storage. In this case, you must supply
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the full absolute path to the directory. When specifying a tape
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device, it is preferable that the "non-rewind" variant of the device
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file name be given.
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'';
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};
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mediaType = mkOption {
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# TODO: required?
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type = types.str;
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description = lib.mdDoc ''
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The specified name-string names the type of media supported by this
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device, for example, `DLT7000`. Media type names are
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arbitrary in that you set them to anything you want, but they must be
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known to the volume database to keep track of which storage daemons
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can read which volumes. In general, each different storage type
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should have a unique Media Type associated with it. The same
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name-string must appear in the appropriate Storage resource
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definition in the Director's configuration file.
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Even though the names you assign are arbitrary (i.e. you choose the
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name you want), you should take care in specifying them because the
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Media Type is used to determine which storage device Bacula will
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select during restore. Thus you should probably use the same Media
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Type specification for all drives where the Media can be freely
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interchanged. This is not generally an issue if you have a single
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Storage daemon, but it is with multiple Storage daemons, especially
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if they have incompatible media.
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For example, if you specify a Media Type of `DDS-4`
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then during the restore, Bacula will be able to choose any Storage
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Daemon that handles `DDS-4`. If you have an
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autochanger, you might want to name the Media Type in a way that is
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unique to the autochanger, unless you wish to possibly use the
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Volumes in other drives. You should also ensure to have unique Media
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Type names if the Media is not compatible between drives. This
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specification is required for all devices.
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In addition, if you are using disk storage, each Device resource will
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generally have a different mount point or directory. In order for
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Bacula to select the correct Device resource, each one must have a
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unique Media Type.
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'';
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};
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extraDeviceConfig = mkOption {
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default = "";
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type = types.lines;
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description = lib.mdDoc ''
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Extra configuration to be passed in Device directive.
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'';
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example = ''
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LabelMedia = yes
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Random Access = no
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AutomaticMount = no
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RemovableMedia = no
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MaximumOpenWait = 60
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AlwaysOpen = no
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'';
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};
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};
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};
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in {
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options = {
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services.bacula-fd = {
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enable = mkOption {
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type = types.bool;
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default = false;
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description = lib.mdDoc ''
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Whether to enable the Bacula File Daemon.
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'';
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};
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name = mkOption {
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default = "${config.networking.hostName}-fd";
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defaultText = literalExpression ''"''${config.networking.hostName}-fd"'';
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type = types.str;
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description = lib.mdDoc ''
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The client name that must be used by the Director when connecting.
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Generally, it is a good idea to use a name related to the machine so
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that error messages can be easily identified if you have multiple
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Clients. This directive is required.
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'';
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};
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port = mkOption {
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default = 9102;
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type = types.port;
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description = lib.mdDoc ''
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This specifies the port number on which the Client listens for
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Director connections. It must agree with the FDPort specified in
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the Client resource of the Director's configuration file.
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'';
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};
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director = mkOption {
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default = {};
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description = lib.mdDoc ''
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This option defines director resources in Bacula File Daemon.
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'';
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type = with types; attrsOf (submodule directorOptions);
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};
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extraClientConfig = mkOption {
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default = "";
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type = types.lines;
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description = lib.mdDoc ''
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Extra configuration to be passed in Client directive.
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'';
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example = ''
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Maximum Concurrent Jobs = 20;
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Heartbeat Interval = 30;
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'';
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};
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extraMessagesConfig = mkOption {
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default = "";
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type = types.lines;
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description = lib.mdDoc ''
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Extra configuration to be passed in Messages directive.
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'';
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example = ''
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console = all
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'';
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};
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};
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services.bacula-sd = {
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enable = mkOption {
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type = types.bool;
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default = false;
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description = lib.mdDoc ''
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Whether to enable Bacula Storage Daemon.
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'';
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};
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name = mkOption {
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default = "${config.networking.hostName}-sd";
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defaultText = literalExpression ''"''${config.networking.hostName}-sd"'';
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type = types.str;
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description = lib.mdDoc ''
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Specifies the Name of the Storage daemon.
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'';
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};
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port = mkOption {
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default = 9103;
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type = types.port;
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description = lib.mdDoc ''
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Specifies port number on which the Storage daemon listens for
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Director connections.
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'';
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};
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director = mkOption {
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default = {};
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description = lib.mdDoc ''
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This option defines Director resources in Bacula Storage Daemon.
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'';
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type = with types; attrsOf (submodule directorOptions);
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};
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device = mkOption {
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default = {};
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description = lib.mdDoc ''
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This option defines Device resources in Bacula Storage Daemon.
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'';
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type = with types; attrsOf (submodule deviceOptions);
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};
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autochanger = mkOption {
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default = {};
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description = lib.mdDoc ''
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This option defines Autochanger resources in Bacula Storage Daemon.
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'';
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type = with types; attrsOf (submodule autochangerOptions);
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};
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extraStorageConfig = mkOption {
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default = "";
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type = types.lines;
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description = lib.mdDoc ''
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Extra configuration to be passed in Storage directive.
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'';
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example = ''
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Maximum Concurrent Jobs = 20;
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Heartbeat Interval = 30;
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'';
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};
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extraMessagesConfig = mkOption {
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default = "";
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type = types.lines;
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description = lib.mdDoc ''
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Extra configuration to be passed in Messages directive.
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'';
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example = ''
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console = all
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'';
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};
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};
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services.bacula-dir = {
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enable = mkOption {
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type = types.bool;
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default = false;
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description = lib.mdDoc ''
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Whether to enable Bacula Director Daemon.
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'';
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};
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name = mkOption {
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default = "${config.networking.hostName}-dir";
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defaultText = literalExpression ''"''${config.networking.hostName}-dir"'';
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type = types.str;
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description = lib.mdDoc ''
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The director name used by the system administrator. This directive is
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required.
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'';
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};
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port = mkOption {
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default = 9101;
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type = types.port;
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description = lib.mdDoc ''
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Specify the port (a positive integer) on which the Director daemon
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will listen for Bacula Console connections. This same port number
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must be specified in the Director resource of the Console
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configuration file. The default is 9101, so normally this directive
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need not be specified. This directive should not be used if you
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specify DirAddresses (N.B plural) directive.
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'';
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};
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password = mkOption {
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# TODO: required?
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type = types.str;
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description = lib.mdDoc ''
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Specifies the password that must be supplied for a Director.
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'';
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};
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extraMessagesConfig = mkOption {
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default = "";
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type = types.lines;
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description = lib.mdDoc ''
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Extra configuration to be passed in Messages directive.
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'';
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example = ''
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console = all
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'';
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};
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extraDirectorConfig = mkOption {
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default = "";
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type = types.lines;
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description = lib.mdDoc ''
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Extra configuration to be passed in Director directive.
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'';
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example = ''
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Maximum Concurrent Jobs = 20;
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Heartbeat Interval = 30;
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'';
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};
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extraConfig = mkOption {
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default = "";
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type = types.lines;
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description = lib.mdDoc ''
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Extra configuration for Bacula Director Daemon.
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'';
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example = ''
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TODO
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'';
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};
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};
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};
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config = mkIf (fd_cfg.enable || sd_cfg.enable || dir_cfg.enable) {
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systemd.services.bacula-fd = mkIf fd_cfg.enable {
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after = [ "network.target" ];
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description = "Bacula File Daemon";
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wantedBy = [ "multi-user.target" ];
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path = [ pkgs.bacula ];
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serviceConfig = {
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ExecStart = "${pkgs.bacula}/sbin/bacula-fd -f -u root -g bacula -c ${fd_conf}";
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ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";
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LogsDirectory = "bacula";
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StateDirectory = "bacula";
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};
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};
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systemd.services.bacula-sd = mkIf sd_cfg.enable {
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after = [ "network.target" ];
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description = "Bacula Storage Daemon";
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wantedBy = [ "multi-user.target" ];
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path = [ pkgs.bacula ];
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serviceConfig = {
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ExecStart = "${pkgs.bacula}/sbin/bacula-sd -f -u bacula -g bacula -c ${sd_conf}";
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ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";
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LogsDirectory = "bacula";
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StateDirectory = "bacula";
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};
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};
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services.postgresql.enable = lib.mkIf dir_cfg.enable true;
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systemd.services.bacula-dir = mkIf dir_cfg.enable {
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after = [ "network.target" "postgresql.service" ];
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description = "Bacula Director Daemon";
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wantedBy = [ "multi-user.target" ];
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path = [ pkgs.bacula ];
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serviceConfig = {
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ExecStart = "${pkgs.bacula}/sbin/bacula-dir -f -u bacula -g bacula -c ${dir_conf}";
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ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";
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LogsDirectory = "bacula";
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StateDirectory = "bacula";
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};
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preStart = ''
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if ! test -e "${libDir}/db-created"; then
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${pkgs.postgresql}/bin/createuser --no-superuser --no-createdb --no-createrole bacula
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#${pkgs.postgresql}/bin/createdb --owner bacula bacula
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# populate DB
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${pkgs.bacula}/etc/create_bacula_database postgresql
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${pkgs.bacula}/etc/make_bacula_tables postgresql
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|
${pkgs.bacula}/etc/grant_bacula_privileges postgresql
|
|
touch "${libDir}/db-created"
|
|
else
|
|
${pkgs.bacula}/etc/update_bacula_tables postgresql || true
|
|
fi
|
|
'';
|
|
};
|
|
|
|
environment.systemPackages = [ pkgs.bacula ];
|
|
|
|
users.users.bacula = {
|
|
group = "bacula";
|
|
uid = config.ids.uids.bacula;
|
|
home = "${libDir}";
|
|
createHome = true;
|
|
description = "Bacula Daemons user";
|
|
shell = "${pkgs.bash}/bin/bash";
|
|
};
|
|
|
|
users.groups.bacula.gid = config.ids.gids.bacula;
|
|
};
|
|
}
|