For some reason there is an increasing number of people asking for support who use colmena.

And it is quite common that one wants to build the machine that causes issues to inspect the system closure.

For something like that it seems as if colmena build is quite practical, though at the same time it seems as if it lacks an argument to specify a single host to build. Is this indeed missing or did I miss something in the docs?

Also, it would be nice if there were appropriately named out links after a build.

NobbZ:

For something like that it seems as if colmena build is quite practical, though at the same time it seems as if it lacks an argument to specify a single host to build. Is this indeed missing or did I miss something in the docs?

You can specify the nodes to build with colmena build --on node-name. The --on argument is a bit misleading because the build isn't (necessarily) happening "on" the node. The reason is that colmena build --on xyz is just an alias of colmena apply --on xyz build (you can pass it other goals besides build like dry-activate).

Also, it would be nice if there were appropriately named out links after a build.

This is an interesting suggestion. Currently there is --keep-result which will cause Colmena to create GC roots under the .gcroots subdirectory. When deployment.buildOnTarget is true, builds happen on the target nodes themselves, so it's not possible to create out links locally in that case. The problem with creating out links in a user-facing manner is that people will be wanting to specify the names (-o result2) or otherwise depend on the outputs for scripting purposes, a use case colmena apply UI doesn't support.

NobbZ:

For something like that it seems as if colmena build is quite practical, though at the same time it seems as if it lacks an argument to specify a single host to build. Is this indeed missing or did I miss something in the docs?

You can specify the nodes to build with colmena build --on node-name. The --on argument is a bit misleading because the build isn't (necessarily) happening "on" the node. The reason is that colmena build --on xyz is just an alias of colmena apply --on xyz build (you can pass it other goals besides build like dry-activate).

Also, it would be nice if there were appropriately named out links after a build.

This is an interesting suggestion. Currently there is --keep-result which will cause Colmena to create GC roots under the .gcroots subdirectory. When deployment.buildOnTarget is true, builds happen on the target nodes themselves, so it's not possible to create out links locally in that case. The problem with creating out links in a user-facing manner is that people will be wanting to specify the names (-o result2) or otherwise depend on the outputs for scripting purposes, a use case the colmena apply interface doesn't support (such is delegated to colmena eval).

In reply to @ronixx:matrix.org
sent an image.

{ config, pkgs, inputs, ... }:

{

  boot.isContainer = true;
  deployment = {
    targetHost = "ip"; # x86_64-linux
    targetPort = 22;
    buildOnTarget = true;
    targetUser = "nix";
    tags = [ "theDev" ];

    # keys = {
    # 	"freshrss" = "helloworld";
    # };

    keys."freshrss.secret" = {
      # Alternatively, `text` (string) or `keyFile` (path to file)
      # may be specified.
      text = "helloworld";

      # keyCommand = [ "vault" "read" "-field=env" "secret/dns01" ];

      destDir = "/run/keys"; # Default: /run/keys
      user = "nix"; # Default: root
      # group = "nginx";             # Default: root
      permissions = "0640"; # Default: 0600

      # uploadAt = "pre-activation"; # Default: pre-activation, Alternative: post-activation
      uploadAt = "post-activation";
    };
  };

  ## ---------- System Packages --------- ##
  environment.systemPackages = [
	pkgs.cowsay
  ];	

  fileSystems."/mnt/drive" = {
    device = "/dev/disk/by-id/scsi-0DO_Volume_volume-blr1-01";
    fsType = "ext4";
  };

  networking.hostName = "theDev"; # Define your hostname.

#   security.acme.acceptTerms = true;
#   security.acme.email = "email@gmail.com";

#   services.freshrss.enable = true;
#   services.freshrss.package = pkgs.freshrss;
  # services.freshrss.name = "god";
#   services.freshrss.passwordFile = "/run/keys/freshrss.secret";
#   services.freshrss.virtualHost = "freshrss";


  ## ---------- Postgresql ------------ ##
  
  services = {
	postgresql = {
		enable = true;
	};
	postgresqlBackup = {
		enable =  true;
		startAt = "*-*-* 01:15:00";
	};
  };

  ## ---------- Netdata System Monitor ------------ ##

  services.netdata = {
    enable = false;
    config = {
      global = {
        "page cache size" = 32;
        "update every" = 15;
      };
    };
  };

  ## ---------- Nginx Webserver ------------ ##

  services.nginx.enable = true;
  services.nginx.commonHttpConfig = ''
    limit_req_zone $binary_remote_addr zone=limitbyaddr:10m rate=5r/s;
    limit_req_status 429;
  '';

  services.nginx.virtualHosts = {

  };

  system.stateVersion = "22.05";

}

In reply to @ronixx:matrix.org
sent an image.

In reply to @ronixx:matrix.org
sent an image.

In reply to @zhaofeng:zhaofeng.li
The activation appears stuck, and you can use -v to get the full outputs

[INFO ] Using flake: git+file:///mnt/drive/src/github.com/pycluster/infra
[INFO ] Enumerating nodes...
[INFO ] Selected 1 out of 3 hosts.
theDev | Evaluating theDev
theDev | trace: warning: The option `nix.trustedUsers' defined in `/nix/store/xsvx3qva09l2kq7zvaws5gvbyzchm0si-source/common/users' has been renamed to `nix.settings.trusted-users'.
theDev | trace: warning: The option `nix.autoOptimiseStore' defined in `/nix/store/xsvx3qva09l2kq7zvaws5gvbyzchm0si-source/common/users' has been renamed to `nix.settings.auto-optimise-store'.
theDev | Evaluated theDev
theDev | Building theDev
theDev | copying 0 paths...
theDev | /nix/store/8yv3a6c6vs26f74m57av4i3kv9dv30y9-nixos-system-theDev-22.11pre-git
theDev | Built "/nix/store/8yv3a6c6vs26f74m57av4i3kv9dv30y9-nixos-system-theDev-22.11pre-git" on target node
theDev | No pre-activation keys to upload
theDev | Activating system profile
theDev | would stop swap device: /dev/zram0
theDev | stopping the following units: -.mount, audit.service, digitalocean-metadata.service, do-agent.service, firewall.service, kmod-static-nodes.service, logrotate-checkconf.service, mount-pstore.service, network-local-commands.service, network-setup.service, nscd.service, reload-systemd-vconsole-setup.service, resolvconf.service, sshd.service, sys-kernel-config.mount, systemd-journald-audit.socket, systemd-modules-load.service, systemd-oomd.service, systemd-oomd.socket, systemd-sysctl.service, systemd-timesyncd.service, systemd-tmpfiles-setup-dev.service, systemd-udev-trigger.service, systemd-udevd-control.socket, systemd-udevd-kernel.socket, systemd-udevd.service, zram-init-zram0.service, zram-reloader.service
theDev | Failed to stop -.mount: Job type stop is not applicable for unit -.mount.
theDev | NOT restarting the following changed units: getty@tty1.service, serial-getty@ttyS0.service, systemd-journal-flush.service, systemd-logind.service, systemd-random-seed.service, systemd-remount-fs.service, systemd-tmpfiles-setup.service, systemd-update-utmp.service, systemd-user-sessions.service, user-runtime-dir@1000.service, user@1000.service
theDev | activating the configuration...
theDev | setting up /etc...
theDev | reviving group 'podman' with GID 994
theDev | removing group ‘systemd-timesync’
theDev | reviving user 'roshan' with UID 1001
theDev | removing user ‘systemd-timesync’
theDev | removing obsolete symlink ‘/etc/vconsole.conf’...
theDev | removing obsolete symlink ‘/etc/kbd’...
theDev | removing obsolete symlink ‘/etc/tmpfiles.d/portables.conf’...
theDev | removing obsolete symlink ‘/etc/tmpfiles.d/lvm2.conf’...
theDev | removing obsolete symlink ‘/etc/systemd/timesyncd.conf’...
theDev | removing obsolete symlink ‘/etc/modprobe.d/ubuntu.conf’...
theDev | removing obsolete symlink ‘/etc/modprobe.d/systemd.conf’...
theDev | removing obsolete symlink ‘/etc/modprobe.d/nixos.conf’...
theDev | removing obsolete symlink ‘/etc/modprobe.d/firmware.conf’...
theDev | removing obsolete symlink ‘/etc/modprobe.d/debian.conf’...
theDev | removing obsolete symlink ‘/etc/modules-load.d/nixos.conf’...
theDev | removing obsolete symlink ‘/etc/udev/hwdb.bin’...
theDev | removing obsolete symlink ‘/etc/udev/rules.d’...
theDev | restarting systemd...
theDev | reloading user units for nix...
theDev | setting up tmpfiles
theDev | reloading the following units: dbus.service
theDev | restarting the following units: dhcpcd.service, nix-daemon.service, systemd-journald.service
theDev | starting the following units: audit.service, kmod-static-nodes.service, logrotate-checkconf.service, mount-pstore.service, network-local-commands.service, nscd.service, systemd-modules-load.service, systemd-oomd.socket, systemd-sysctl.service, systemd-tmpfiles-setup-dev.service, systemd-udevd-control.socket, systemd-udevd-kernel.socket
theDev | A dependency job for local-fs.target failed. See 'journalctl -xe' for details.
theDev | Job for nscd.service canceled.
theDev | Job for basic.target canceled.
theDev | Job for sysinit.target canceled.
theDev | Job for multi-user.target canceled.
theDev | Job for network-local-commands.service canceled.
theDev | Job for logrotate-checkconf.service canceled.

In reply to @ronixx:matrix.org
not able to ssh to. Restarting my server from panel