146 lines
5.2 KiB
Nix
146 lines
5.2 KiB
Nix
# Disnix server
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{ config, pkgs, ... }:
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with pkgs.lib;
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let
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cfg = config.services.disnix;
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disnix_activation_scripts = pkgs.disnix_activation_scripts.override (origArgs: {
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enableApacheWebApplication = config.services.httpd.enable;
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enableAxis2WebService = config.services.tomcat.axis2.enable;
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enableEjabberdDump = config.services.ejabberd.enable;
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enableMySQLDatabase = config.services.mysql.enable;
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enablePostgreSQLDatabase = config.services.postgresql.enable;
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enableSubversionRepository = config.services.svnserve.enable;
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enableTomcatWebApplication = config.services.tomcat.enable;
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});
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in
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{
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###### interface
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options = {
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services.disnix = {
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enable = mkOption {
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default = false;
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description = "Whether to enable Disnix";
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};
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useWebServiceInterface = mkOption {
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default = false;
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description = "Whether to enable the DisnixWebService interface running on Apache Tomcat";
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};
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publishInfrastructure = {
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enable = mkOption {
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default = false;
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description = "Whether to publish capabilities/properties of this machine in as attributes in the infrastructure option";
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};
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enableAuthentication = mkOption {
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default = false;
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description = "Whether to publish authentication credentials through the infrastructure attribute (not recommended in combination with Avahi)";
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};
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};
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infrastructure = mkOption {
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default = {};
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description = "List of name value pairs containing properties for the infrastructure model";
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};
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publishAvahi = mkOption {
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default = false;
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description = "Whether to publish capabilities/properties as a Disnix service through Avahi";
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};
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};
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};
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###### implementation
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config = mkIf cfg.enable {
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environment.systemPackages = [ pkgs.disnix ] ++ optional cfg.useWebServiceInterface pkgs.DisnixWebService;
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services.dbus.enable = true;
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services.dbus.packages = [ pkgs.disnix ];
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services.avahi.enable = cfg.publishAvahi;
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services.tomcat.enable = cfg.useWebServiceInterface;
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services.tomcat.extraGroups = [ "disnix" ];
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services.tomcat.javaOpts = "${optionalString cfg.useWebServiceInterface "-Djava.library.path=${pkgs.libmatthew_java}/lib/jni"} ";
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services.tomcat.sharedLibs = optional cfg.useWebServiceInterface "${pkgs.DisnixWebService}/share/java/DisnixConnection.jar"
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++ optional cfg.useWebServiceInterface "${pkgs.dbus_java}/share/java/dbus.jar";
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services.tomcat.webapps = optional cfg.useWebServiceInterface pkgs.DisnixWebService;
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users.extraGroups = singleton
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{ name = "disnix";
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gid = config.ids.gids.disnix;
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};
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services.disnix.infrastructure =
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optionalAttrs (cfg.publishInfrastructure.enable)
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( { hostname = config.networking.hostName;
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targetHost = config.deployment.targetHost;
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system = if config.nixpkgs.system == "" then builtins.currentSystem else config.nixpkgs.system;
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}
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// optionalAttrs (cfg.useWebServiceInterface) { targetEPR = "http://${config.deployment.targetHost}:8080/DisnixWebService/services/DisnixWebService"; }
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// optionalAttrs (config.services.httpd.enable) { documentRoot = config.services.httpd.documentRoot; }
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// optionalAttrs (config.services.mysql.enable) { mysqlPort = config.services.mysql.port; }
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// optionalAttrs (config.services.tomcat.enable) { tomcatPort = 8080; }
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// optionalAttrs (config.services.svnserve.enable) { svnBaseDir = config.services.svnserve.svnBaseDir; }
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// optionalAttrs (cfg.publishInfrastructure.enableAuthentication) (
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optionalAttrs (config.services.mysql.enable) { mysqlUsername = "root"; mysqlPassword = builtins.readFile config.services.mysql.rootPassword; })
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)
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;
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services.disnix.publishInfrastructure.enable = cfg.publishAvahi;
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jobs = {
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disnix =
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{ description = "Disnix server";
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startOn = "started dbus";
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script =
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''
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export PATH=/var/run/current-system/sw/bin:/var/run/current-system/sw/sbin
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export HOME=/root
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${pkgs.disnix}/bin/disnix-service --activation-modules-dir=${disnix_activation_scripts}/libexec/disnix/activation-scripts
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'';
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};
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} // optionalAttrs cfg.publishAvahi {
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disnixAvahi =
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{ description = "Disnix Avahi publisher";
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startOn = "started avahi-daemon";
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exec =
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''
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${pkgs.avahi}/bin/avahi-publish-service disnix-${config.networking.hostName} _disnix._tcp 22 \
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"mem=$(grep 'MemTotal:' /proc/meminfo | sed -e 's/kB//' -e 's/MemTotal://' -e 's/ //g')" \
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"supportedTypes=[$(for i in ${disnix_activation_scripts}/libexec/disnix/activation-scripts/*; do echo -n " \"$(basename $i)\""; done) ]" \
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${concatMapStrings (infrastructureAttrName:
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let infrastructureAttrValue = getAttr infrastructureAttrName (cfg.infrastructure);
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in
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if builtins.isInt infrastructureAttrValue then
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''${infrastructureAttrName}=${toString infrastructureAttrValue} \
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''
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else
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''${infrastructureAttrName}=\"${infrastructureAttrValue}\" \
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''
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) (attrNames (cfg.infrastructure))}
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'';
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};
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};
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};
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}
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