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Colmena

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A simple, stateless NixOS deployment tool - https://github.com/zhaofengli/colmena87 Servers

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13 Jan 2022
@io:meat.computerio joined the room.23:03:14
14 Jan 2022
@putch4r:matrix.orgputchar joined the room.10:08:49
@putch4r:matrix.orgputchar hello
Zhaofeng Li thank you for developing your software.
I got a question but i didnt really look into all of the feature already available
is colmena able to do a multi profile deployment ? much like what deploy-rs do ? 		10:10:32
@adis:blad.isadisbladis left the room.10:22:38
@zhaofeng:zhaofeng.liZhaofeng Li
In reply to @putch4r:matrix.org
hello
Zhaofeng Li thank you for developing your software.
I got a question but i didnt really look into all of the feature already available
is colmena able to do a multi profile deployment ? much like what deploy-rs do ?
Hi, Colmena follows the semantics of NixOps and morph so it cannot do multi-profile deployment at the moment. 		18:27:24
@n4074:matrix.orgNaota joined the room.22:18:23
@n4074:matrix.orgNaota
In reply to @buckley310:matrix.org
So I'm curious. In my setup my servers all exist inside of my flake outputs.nixosConfigurations, and my outputs.colmena is just a stub that consumes nixosConfigurations and emits a colmena configuration. Is anyone else doing it this way, or just me? I really like the portability of keeping my hosts in nixosConfigurations
I came here looking for advice on achieving exactly this, so thanks! 		22:20:45
@buckley310:matrix.orgBuckleyFWIW, I have not fully looked into the performance implications of doing it this way. Some quick testing indicated that there may be a slight penalty for doing it that way, since its sort of building the systems twice.22:29:08
@buckley310:matrix.orgBuckleymy (non-scientific) test indicated that doing it this way takes 36 seconds to build, whereas doing it the "normal' colmena way takes 32 seconds22:30:09
@buckley310:matrix.orgBuckleysmall enough that I called it "good enough" and didnt really test further22:30:42
@zhaofeng:zhaofeng.liZhaofeng Li The main problem with this is that you cannot take advantage of the name and nodes module arguments without breaking nixosConfigurations 22:31:09
@buckley310:matrix.orgBuckley there is that. although you can overlay nixosConfigurations and then you can call pkgs.nixosConfigurations.<node>.config.whatever 22:32:46
@buckley310:matrix.orgBuckley * there is that. although you can overlay nixosConfigurations and then you can call pkgs.nixosConfigurations.<node>.config.whatever from machine configs 22:33:00
@buckley310:matrix.orgBuckleyI'm just too used to being able to poke around my configs with a repl to give it up :)22:34:32
@n4074:matrix.orgNaota
In reply to @zhaofeng:zhaofeng.li
The main problem with this is that you cannot take advantage of the name and nodes module arguments without breaking nixosConfigurations
My setup is relatively simple so this is not an issue for me. 		22:34:49
@n4074:matrix.orgNaotaI am trying out flake-utils-plus, but was struggling to workout how to integrate that with Colmena.22:39:51
@n4074:matrix.orgNaota I was initially using deploy-rs, in which case it's dead simple. But it doesn't support buildOnTarget like Colmena. 22:42:00
@buckley310:matrix.orgBuckleyWhat we’re you trying to actually do with utils?23:05:20
15 Jan 2022
@n4074:matrix.orgNaota I'm trying out using mkFlake from FUP to define my set of hosts. I'm taking advantage of hostDefaults, sharedOverlays in generating my system configurations. So I was trying to work out a clean way to use the output of mkFlake in colmena (or nixops or morph). 00:05:45
@angerman:matrix.organgerman

After yet another nixops failure, I've tried colmena, but I'm stuck due to nix being killed?

[INFO ] Enumerating nodes...
[INFO ] Selected all 1 nodes.
helios64 | Evaluating helios64
helios64 | trace: warning: The following Nixpkgs configuration keys set in meta.nixpkgs will be ignored: allowBroken allowUnsupportedSystem
helios64 | Evaluation failed: Nix was killed by signal 11
         | Failed: Nix was killed by signal 11
[ERROR] Failed to complete requested operation - Last 1 lines of logs:
[ERROR]  failure) Nix was killed by signal 11
[ERROR] Failed to evaluate helios64 - Last 4 lines of logs:
[ERROR]  created)
[ERROR]    state) Running
[ERROR]   stderr) trace: warning: The following Nixpkgs configuration keys set in meta.nixpkgs will be ignored: allowBroken allowUnsupportedSystem
[ERROR]  failure) Nix was killed by signal 11
[ERROR] -----
[ERROR] Operation failed with error: Nix was killed by signal 11

how do I debug what's going on here

09:29:33
@angerman:matrix.organgermanI'm trying to build for aarch64-linux, on macOS. I do have a aarch64-linux builder in my machines file.09:32:30
@mick.hohmann:matrix.mayflower.deMick joined the room.10:27:46
@zhaofeng:zhaofeng.liZhaofeng Li
In reply to @angerman:matrix.org

After yet another nixops failure, I've tried colmena, but I'm stuck due to nix being killed?

[INFO ] Enumerating nodes...
[INFO ] Selected all 1 nodes.
helios64 | Evaluating helios64
helios64 | trace: warning: The following Nixpkgs configuration keys set in meta.nixpkgs will be ignored: allowBroken allowUnsupportedSystem
helios64 | Evaluation failed: Nix was killed by signal 11
         | Failed: Nix was killed by signal 11
[ERROR] Failed to complete requested operation - Last 1 lines of logs:
[ERROR]  failure) Nix was killed by signal 11
[ERROR] Failed to evaluate helios64 - Last 4 lines of logs:
[ERROR]  created)
[ERROR]    state) Running
[ERROR]   stderr) trace: warning: The following Nixpkgs configuration keys set in meta.nixpkgs will be ignored: allowBroken allowUnsupportedSystem
[ERROR]  failure) Nix was killed by signal 11
[ERROR] -----
[ERROR] Operation failed with error: Nix was killed by signal 11

how do I debug what's going on here

Interesting, 11 is a segfault. What Nix version are you running? 		12:39:34
@angerman:matrix.organgerman I’ll check in a bit. 12:46:36
@angerman:matrix.organgermanThere is no way to see the raw nix commands Coleman is calling?12:47:02
@zhaofeng:zhaofeng.liZhaofeng Li
In reply to @angerman:matrix.org
There is no way to see the raw nix commands Coleman is calling?

Not at the moment and I really should add a bunch of debug prints. You can manually evaluate from the repo with

nix-instantiate -E 'let eval = import ./src/nix/hive/eval.nix; hive = eval { rawHive = import ./path/to/your/hive.nix; }; in hive.nodes.helios64.config.system.build.toplevel'
12:53:51
@angerman:matrix.organgerman Zhaofeng Li: what I did try was -v2 but there seem to be no verbosity levels. 13:34:24
@angerman:matrix.organgerman

If I run

NIX_PATH=nixpkgs=https://github.com/NixOs/nixpkgs/archive/nixpkgs-21.11-darwin.tar.gz colmena build

I get

[INFO ] Using configuration: /Users/angerman/Projects/zw3rk/nixos-docker-sd-image-builder/hive.nix
[INFO ] Enumerating nodes...
error: The option `services.getty' defined in `/nix/store/c39y3z66vmr5q152998wymdi0zk7q8hh-source/nixos/modules/profiles/installation-device.nix' does not exist.
(use '--show-trace' to show detailed location information)
[ERROR] -----
[ERROR] Operation failed with error: Nix exited with error code: 1
13:34:54
@angerman:matrix.organgermanIf I run it with the same pin I set in the meta.nixpkgs attribute I get the segfault. The pin is from 20.09 or so, so somewhat older.13:35:43
@angerman:matrix.organgermanI'm not sure how that service.getty is getting in there though.13:36:07

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