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Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1tEf70-0006R6-40 for guix-patches@gnu.org; Fri, 22 Nov 2024 20:39:02 -0500 X-Loop: help-debbugs@gnu.org Subject: [bug#74389] [PATCH] services: add cloud-init service References: In-Reply-To: Resent-From: Alex Original-Sender: "Debbugs-submit" Resent-CC: guix-patches@gnu.org Resent-Date: Sat, 23 Nov 2024 01:39:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 74389 X-GNU-PR-Package: guix-patches X-GNU-PR-Keywords: patch To: "74389@debbugs.gnu.org" <74389@debbugs.gnu.org> Received: via spool by 74389-submit@debbugs.gnu.org id=B74389.173232588424642 (code B ref 74389); Sat, 23 Nov 2024 01:39:02 +0000 Received: (at 74389) by debbugs.gnu.org; 23 Nov 2024 01:38:04 +0000 Received: from localhost ([127.0.0.1]:56131 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1tEf62-0006Oj-Js for submit@debbugs.gnu.org; Fri, 22 Nov 2024 20:38:04 -0500 Received: from mail-4317.proton.ch ([185.70.43.17]:60123) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1tEZCc-0003ig-Kj for 74389@debbugs.gnu.org; Fri, 22 Nov 2024 14:20:28 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=infiniteadaptability.org; s=protonmail3; t=1732303219; x=1732562419; bh=ai1bW/jfmUWGJvJ6hOD0pFj6QuQ/TRZcNu4m4ZRYaro=; h=Date:To:From:Subject:Message-ID:Feedback-ID:From:To:Cc:Date: Subject:Reply-To:Feedback-ID:Message-ID:BIMI-Selector: List-Unsubscribe:List-Unsubscribe-Post; b=UnoGFOV7vJrtZiWDzpUMiuIm6QuoacZLy5I8LUrY6Yk0gU/p0BqNKNcEaQo4nEI+s TJ5O3FQ9CVrMpWnaRl5fcaMalgx+2bMz6JPcmJrkaCNfPSmNjLrw6mEvjK9l/s8zPp qvpTrFUt2jmZpR+TrBKoxaGY7Ld4nRIvryXI5yZ5iaCvrqCkeUAAItkM4TAC2vJCD3 Mp05jGv5P77cPYGBr/otxPdZJL2r+ojbetNEn40vCFtl/T07KMN41HCMH9i/DajaYi PIIt0RVx2OWMXqczhA61gp30nwctP/sHsAZiPXwYl7KoKpJCJt/E4pHCn4v3wQULiB dk2VSgY4f8e2Q== Date: Fri, 22 Nov 2024 19:20:13 +0000 From: Alex Message-ID: Feedback-ID: 41959981:user:proton X-Pm-Message-ID: 6ba2a67937791d99b90a5c76505367a8aacd0a26 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Mailman-Approved-At: Fri, 22 Nov 2024 20:38:01 -0500 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: guix-patches@gnu.org List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-patches-bounces+larch=yhetil.org@gnu.org Sender: guix-patches-bounces+larch=yhetil.org@gnu.org X-Migadu-Flow: FLOW_IN X-Migadu-Country: US X-Migadu-Queue-Id: 59646586DA X-Migadu-Scanner: mx13.migadu.com X-Migadu-Spam-Score: -5.97 X-Spam-Score: -5.97 X-TUID: 6vEfYZdDtzWs Ricardo, This patch is just a MVP for implementing a cloud-init service. The goal pr= imarily was to get the networking, disk and filesystem mounts, and ssh auth= entication working properly. >From a high level this patch implements a cloud-init-service which uses clo= ud-init functionality to gather information from it's run-time environment = and then run cloud-init modules in order to properly configure the vm. It p= rovides a configuration interface for choosing which modules to run as well= as a mechanism to add extra configuration files. I took a few major shortcuts in order to get a working image. The first is that instead of writing guix specific functionality for cloud-= init modules, I decided to attempt to use the ubuntu (which I believe is th= e default) tools. This is why the cloud-utils package as well as the networ= k-manager-service-type are included in the vm image template I created as p= art of this patch. The second shortcut is that I didn't see a good way to guix-ify the cloud-i= nit service definitions/runtime environment (i.e. I used the /etc/cloud dir= ectory to handle most of the configuration files). I'd prefer if configurat= ion lives in the store, but the configuration files and the gathered data l= ive in locations which I didn't see a way to overwrite easily. I'm sure thi= s exists, but would require more digging into the cloud-init source code an= d/or patches that would need to be pushed upstream. The final shortcut is the actual running of the cloud-init-service. I didn'= t see a good way to *wait* for a process to complete, i.e. to block other s= ervices until the current service completes. It looks to me that running a = long-running one-shot service (each stage of cloud-init typically takes a f= ew seconds to run) doesn't block any service which requires it's provisions= . Maybe there's some shepherd nuances that I'm not aware of. I ended up cre= ating a computed file which produces a shell script which runs each cloud-i= nit stage in sequence as a workaround to a more robust solution. I added some extra comments with instructions on how to add extra cloud-ini= t configuration files. This is required for cloud-init to run properly on D= igitalOcean (the order of the data sources needs to be changed from the def= ault). It might be necessary for other p I've tested this on digital ocean and gotten it work properly (and then use= d guix deploy to update the configuration of the image).=20 NOTE: there are some comments in the template file that would need to be un= commented to build the exact image I used. Using this patch it should be easy to create an image for testing using: ./pre-inst-env guix system image -t qcow2 gnu/system/examples/cloud-init-im= age.tmpl I would appreciate further testers and any suggestions for improvement. Thanks! Alex