From patchwork Thu Jun 27 18:42:20 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Jakob L. Kreuze" X-Patchwork-Id: 14409 Return-Path: X-Original-To: patchwork@mira.cbaines.net Delivered-To: patchwork@mira.cbaines.net Received: by mira.cbaines.net (Postfix, from userid 113) id 1884F17178; Thu, 27 Jun 2019 19:45:28 +0100 (BST) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on mira.cbaines.net X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mira.cbaines.net (Postfix) with ESMTP id 7EB6B17176 for ; Thu, 27 Jun 2019 19:45:25 +0100 (BST) Received: from localhost ([::1]:53648 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hgZOf-0003Xy-6d for patchwork@mira.cbaines.net; Thu, 27 Jun 2019 14:45:25 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50818) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hgZNM-0002t8-L1 for guix-patches@gnu.org; Thu, 27 Jun 2019 14:44:07 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hgZNL-0001UW-BI for guix-patches@gnu.org; Thu, 27 Jun 2019 14:44:04 -0400 Received: from debbugs.gnu.org ([209.51.188.43]:54362) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1hgZNK-0001UC-On for guix-patches@gnu.org; Thu, 27 Jun 2019 14:44:02 -0400 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1hgZNK-00045o-Li for guix-patches@gnu.org; Thu, 27 Jun 2019 14:44:02 -0400 X-Loop: help-debbugs@gnu.org Subject: [bug#36404] [PATCH 6/6] doc: Add section for 'guix deploy'. Resent-From: zerodaysfordays@sdf.lonestar.org (Jakob L. Kreuze) Original-Sender: "Debbugs-submit" Resent-CC: guix-patches@gnu.org Resent-Date: Thu, 27 Jun 2019 18:44:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 36404 X-GNU-PR-Package: guix-patches X-GNU-PR-Keywords: patch To: 36404@debbugs.gnu.org Received: via spool by 36404-submit@debbugs.gnu.org id=B36404.156166103915709 (code B ref 36404); Thu, 27 Jun 2019 18:44:02 +0000 Received: (at 36404) by debbugs.gnu.org; 27 Jun 2019 18:43:59 +0000 Received: from localhost ([127.0.0.1]:39672 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hgZNG-00045J-Q6 for submit@debbugs.gnu.org; Thu, 27 Jun 2019 14:43:59 -0400 Received: from mx.sdf.org ([205.166.94.20]:51018) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hgZNE-000457-Tn for 36404@debbugs.gnu.org; Thu, 27 Jun 2019 14:43:57 -0400 Received: from Epsilon (pool-173-76-53-40.bstnma.fios.verizon.net [173.76.53.40]) (authenticated (0 bits)) by mx.sdf.org (8.15.2/8.14.5) with ESMTPSA id x5RIhtPR004216 (using TLSv1.2 with cipher AES256-GCM-SHA384 (256 bits) verified NO) for <36404@debbugs.gnu.org>; Thu, 27 Jun 2019 18:43:56 GMT From: zerodaysfordays@sdf.lonestar.org (Jakob L. Kreuze) References: <87o92ianbj.fsf@sdf.lonestar.org> <87imsqan66.fsf@sdf.lonestar.org> <87ef3ean4i.fsf_-_@sdf.lonestar.org> <87a7e2an3h.fsf_-_@sdf.lonestar.org> <875zoqan2e.fsf_-_@sdf.lonestar.org> <871rzean1i.fsf_-_@sdf.lonestar.org> Date: Thu, 27 Jun 2019 14:42:20 -0400 In-Reply-To: <871rzean1i.fsf_-_@sdf.lonestar.org> (Jakob L. Kreuze's message of "Thu, 27 Jun 2019 14:41:29 -0400") Message-ID: <87woh698fn.fsf_-_@sdf.lonestar.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.2 (gnu/linux) MIME-Version: 1.0 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.51.188.43 X-BeenThere: guix-patches@gnu.org List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-patches-bounces+patchwork=mira.cbaines.net@gnu.org Sender: "Guix-patches" X-getmail-retrieved-from-mailbox: Patches 2019-06-26 Jakob L. Kreuze doc/guix.texi: Add section "Invoking guix deploy". --- doc/guix.texi | 103 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 103 insertions(+) diff --git a/doc/guix.texi b/doc/guix.texi index f0d148ace0..948767d8c8 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -81,6 +81,7 @@ Documentation License''. * guix gc: (guix)Invoking guix gc. Reclaiming unused disk space. * guix pull: (guix)Invoking guix pull. Update the list of available packages. * guix system: (guix)Invoking guix system. Manage the operating system configuration. +* guix deploy: (guix)Invoking guix deploy. Manage operating system configurations for remote hosts. @end direntry @dircategory Software development @@ -269,6 +270,7 @@ System Configuration * Initial RAM Disk:: Linux-Libre bootstrapping. * Bootloader Configuration:: Configuring the boot loader. * Invoking guix system:: Instantiating a system configuration. +* Invoking guix deploy:: Deploying a system configuration to a remote host. * Running Guix in a VM:: How to run Guix System in a virtual machine. * Defining Services:: Adding new service definitions. @@ -10303,6 +10305,7 @@ instance to support new system services. * Initial RAM Disk:: Linux-Libre bootstrapping. * Bootloader Configuration:: Configuring the boot loader. * Invoking guix system:: Instantiating a system configuration. +* Invoking guix deploy:: Deploying a system configuration to a remote host. * Running Guix in a VM:: How to run Guix System in a virtual machine. * Defining Services:: Adding new service definitions. @end menu @@ -25399,6 +25402,106 @@ example graph. @end table +@node Invoking guix deploy +@section Invoking @code{guix deploy} + +In addition to managing a machine's configuration locally through operating +system declarations, Guix also provides the ability to managing multiple remote +hosts as a logical ``deployment''. This is done using @command{guix deploy}. + +@example +guix deploy @var{file} +@end example + +Such an invocation will deploy the machines that the code within @var{file} +evaluates to. As an example, @var{file} might contain a definition like this: + +@example +;; This is a Guix deployment of a "bare bones" setup, with +;; no X11 display server, to a machine with an SSH daemon +;; listening on localhost:2222. A configuration such as this +;; may be appropriate for virtual machine with ports +;; forwarded to the host's loopback interface. + +(use-modules (gnu) (guix)) +(use-machine-modules ssh) +(use-service-modules networking ssh) +(use-package-modules bootloaders) + +(define %system + (operating-system + (host-name "gnu-deployed") + (timezone "Etc/UTC") + (bootloader (bootloader-configuration + (bootloader grub-bootloader) + (target "/dev/vda") + (terminal-outputs '(console)))) + (file-systems (cons (file-system + (mount-point "/") + (device "/dev/vda1") + (type "ext4")) + %base-file-systems)) + (services + (append (list (service dhcp-client-service-type) + (service openssh-service-type + (openssh-configuration + (permit-root-login #t) + (allow-empty-passwords? #t)))) + %base-services)))) + +(list (machine + (system %system) + (environment 'managed-host) + (configuration (machine-ssh-configuration + (host-name "localhost") + (identity "./id_rsa") + (port 2222))))) +@end example + +The file should evaluate to a list of machines, rather than just one. This +example, upon being deployed, will create a new generation on the remote system +realizing the operating-system configuration @var{%system}. @var{environment} +and @var{configuration} specify how the machine should be provisioned--that is, +deployment and management of computing resources. The above example does not +provision any resources -- a @code{'managed-host} is a machine that is already +up and running the Guix system. A more complex deployment may involve +i.e. starting virtual machines through a VPS provider, however, in which case a +different @var{environment} types would be used. + +@deftp {Data Type} machine +This is the data type representing a single machine in a heterogeneous Guix +deployment. + +@table @asis +@item @code{system} +The object of the operating system configuration to deploy. + +@item @code{environment} +A symbol describing how the machine should be provisioned. At the moment, only +the only supported value is @code{'managed-host}. + +@item @code{configuration} (default: @code{#f}) +An object describing the configuration for the machine's @code{environment}. If +the @code{environment} has a default configuration, @code{#f} can be used. If +@code{#f} is used for an environment with no default configuration, however, an +error will be thrown. +@end table +@end deftp + +@deftp {Data Type} machine-ssh-configuration +This is the data type representing the SSH client parameters for connecting to a +@code{'managed-host}. + +@table @asis +@item @code{host-name} +@item @code{port} (default: @code{22}) +@item @code{user} (default: @code{"root"}) +@item @code{identity} (default: @code{#f}) +If specified, the path to the SSH private key to use to authenticate with the +remote host. +@end table +@end deftp + @node Running Guix in a VM @section Running Guix in a Virtual Machine