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237 lines
7.5 KiB
Nix
237 lines
7.5 KiB
Nix
{ config, pkgs, lib, ... }:
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with lib;
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let
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cfg = config.services.mattermost;
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defaultConfig = builtins.fromJSON (builtins.replaceStrings [ "\\u0026" ] [ "&" ]
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(readFile "${pkgs.mattermost}/config/config.json")
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);
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database = "postgres://${cfg.localDatabaseUser}:${cfg.localDatabasePassword}@localhost:5432/${cfg.localDatabaseName}?sslmode=disable&connect_timeout=10";
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mattermostConf = foldl recursiveUpdate defaultConfig
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[ { ServiceSettings.SiteURL = cfg.siteUrl;
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ServiceSettings.ListenAddress = cfg.listenAddress;
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TeamSettings.SiteName = cfg.siteName;
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SqlSettings.DriverName = "postgres";
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SqlSettings.DataSource = database;
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}
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cfg.extraConfig
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];
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mattermostConfJSON = pkgs.writeText "mattermost-config-raw.json" (builtins.toJSON mattermostConf);
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in
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{
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options = {
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services.mattermost = {
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enable = mkEnableOption "Mattermost chat server";
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statePath = mkOption {
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type = types.str;
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default = "/var/lib/mattermost";
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description = "Mattermost working directory";
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};
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siteUrl = mkOption {
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type = types.str;
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example = "https://chat.example.com";
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description = ''
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URL this Mattermost instance is reachable under, without trailing slash.
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'';
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};
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siteName = mkOption {
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type = types.str;
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default = "Mattermost";
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description = "Name of this Mattermost site.";
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};
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listenAddress = mkOption {
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type = types.str;
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default = ":8065";
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example = "[::1]:8065";
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description = ''
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Address and port this Mattermost instance listens to.
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'';
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};
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mutableConfig = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Whether the Mattermost config.json is writeable by Mattermost.
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Most of the settings can be edited in the system console of
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Mattermost if this option is enabled. A template config using
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the options specified in services.mattermost will be generated
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but won't be overwritten on changes or rebuilds.
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If this option is disabled, changes in the system console won't
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be possible (default). If an config.json is present, it will be
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overwritten!
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'';
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};
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extraConfig = mkOption {
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type = types.attrs;
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default = { };
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description = ''
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Addtional configuration options as Nix attribute set in config.json schema.
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'';
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};
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localDatabaseCreate = mkOption {
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type = types.bool;
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default = true;
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description = ''
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Create a local PostgreSQL database for Mattermost automatically.
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'';
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};
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localDatabaseName = mkOption {
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type = types.str;
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default = "mattermost";
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description = ''
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Local Mattermost database name.
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'';
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};
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localDatabaseUser = mkOption {
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type = types.str;
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default = "mattermost";
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description = ''
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Local Mattermost database username.
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'';
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};
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localDatabasePassword = mkOption {
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type = types.str;
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default = "mmpgsecret";
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description = ''
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Password for local Mattermost database user.
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'';
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};
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user = mkOption {
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type = types.str;
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default = "mattermost";
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description = ''
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User which runs the Mattermost service.
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'';
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};
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group = mkOption {
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type = types.str;
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default = "mattermost";
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description = ''
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Group which runs the Mattermost service.
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'';
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};
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matterircd = {
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enable = mkEnableOption "Mattermost IRC bridge";
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parameters = mkOption {
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type = types.listOf types.str;
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default = [ ];
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example = [ "-mmserver chat.example.com" "-bind [::]:6667" ];
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description = ''
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Set commandline parameters to pass to matterircd. See
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https://github.com/42wim/matterircd#usage for more information.
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'';
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};
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};
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};
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};
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config = mkMerge [
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(mkIf cfg.enable {
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users.users = optionalAttrs (cfg.user == "mattermost") {
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mattermost = {
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group = cfg.group;
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uid = config.ids.uids.mattermost;
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home = cfg.statePath;
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};
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};
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users.groups = optionalAttrs (cfg.group == "mattermost") {
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mattermost.gid = config.ids.gids.mattermost;
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};
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services.postgresql.enable = cfg.localDatabaseCreate;
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# The systemd service will fail to execute the preStart hook
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# if the WorkingDirectory does not exist
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system.activationScripts.mattermost = ''
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mkdir -p ${cfg.statePath}
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'';
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systemd.services.mattermost = {
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description = "Mattermost chat service";
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wantedBy = [ "multi-user.target" ];
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after = [ "network.target" "postgresql.service" ];
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preStart = ''
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mkdir -p ${cfg.statePath}/{data,config,logs}
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ln -sf ${pkgs.mattermost}/{bin,fonts,i18n,templates,client} ${cfg.statePath}
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'' + lib.optionalString (!cfg.mutableConfig) ''
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rm -f ${cfg.statePath}/config/config.json
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cp ${mattermostConfJSON} ${cfg.statePath}/config/config.json
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${pkgs.mattermost}/bin/mattermost config migrate ${cfg.statePath}/config/config.json ${database}
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'' + lib.optionalString cfg.mutableConfig ''
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if ! test -e "${cfg.statePath}/config/.initial-created"; then
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rm -f ${cfg.statePath}/config/config.json
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cp ${mattermostConfJSON} ${cfg.statePath}/config/config.json
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touch ${cfg.statePath}/config/.initial-created
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fi
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'' + lib.optionalString cfg.localDatabaseCreate ''
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if ! test -e "${cfg.statePath}/.db-created"; then
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${pkgs.sudo}/bin/sudo -u ${config.services.postgresql.superUser} \
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${config.services.postgresql.package}/bin/psql postgres -c \
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"CREATE ROLE ${cfg.localDatabaseUser} WITH LOGIN NOCREATEDB NOCREATEROLE ENCRYPTED PASSWORD '${cfg.localDatabasePassword}'"
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${pkgs.sudo}/bin/sudo -u ${config.services.postgresql.superUser} \
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${config.services.postgresql.package}/bin/createdb \
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--owner ${cfg.localDatabaseUser} ${cfg.localDatabaseName}
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touch ${cfg.statePath}/.db-created
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fi
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'' + ''
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chown ${cfg.user}:${cfg.group} -R ${cfg.statePath}
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chmod u+rw,g+r,o-rwx -R ${cfg.statePath}
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'';
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serviceConfig = {
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PermissionsStartOnly = true;
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User = cfg.user;
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Group = cfg.group;
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ExecStart = "${pkgs.mattermost}/bin/mattermost" +
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(lib.optionalString (!cfg.mutableConfig) " -c ${database}");
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WorkingDirectory = "${cfg.statePath}";
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Restart = "always";
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RestartSec = "10";
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LimitNOFILE = "49152";
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};
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unitConfig.JoinsNamespaceOf = mkIf cfg.localDatabaseCreate "postgresql.service";
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};
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})
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(mkIf cfg.matterircd.enable {
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systemd.services.matterircd = {
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description = "Mattermost IRC bridge service";
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wantedBy = [ "multi-user.target" ];
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serviceConfig = {
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User = "nobody";
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Group = "nogroup";
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ExecStart = "${pkgs.matterircd}/bin/matterircd ${concatStringsSep " " cfg.matterircd.parameters}";
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WorkingDirectory = "/tmp";
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PrivateTmp = true;
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Restart = "always";
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RestartSec = "5";
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};
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};
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})
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];
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}
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