Comment on Kubernetes? docker-compose? How should I organize my container services in 2024?

• nico@r.dcotta.eu ⁨9⁩ ⁨months⁩ ago

  I recommend starting with ZeroToNix’s docs and then moving on to nixos.wiki, but here is a minimal, working example that I could deploy to a hetzner VPS that only has nix and ssh installed:

  { config, pkgs, ... }: {
    # generated, this will set up partitions and bootloader in a separate file
    imports = [ ./hardware-configuration.nix ];
    zramSwap.enable = true;
    networking.hostName = "miki";
    # configures SSH daemon with a public key so we can ssh in again
    services.openssh.enable = true;
    users.users.root.openssh.authorizedKeys.keys = [ ''ssh-ed25519 AAAAC3NzaC1lNDI1NTE5AAAAIPJ7FM3wEuWoVuxRkWnh9PNEtG+HOcwcZIt6Qg/Y1jka'' ];
    # creates a timmy user with sudo access and wget installed
    users.users.timmy = {
      isNormalUser = true;
      extraGroups = [ "networkmanager" "wheel" "sudo" ];
      packages = with pkgs; [ wget ];
    };
    # open up SSH port
    networking.firewall.allowedTCPPorts = [ 22 ];
    # start nginx, assumes HTML is present at `/var/www`
    services.nginx = {
      enable = true;
      virtualHosts."default" = {
        forceSSL = true;            # Redirect HTTP clients to an HTTPs connection
        default = true;             # Always use this host, no matter the host name
        root = /var/www;        # Set the web root to ser
      };
    };
    system.stateVersion = "22.11";
  }
  

  This sets up a machine, configures the usual stuff like the ssh daemon, creates a user, and sets up an nginx server. To deploy it you would run nixos-rebuild --target-host root@10.0.0.1 switch. Other tools exist (I use colmena but the idea is the same). Note how easy it was to set up nginx! If I was setting Nomad up, I would just do services.nomad.enable = true.

  As you can see some things you will have to learn (the nix language, what the configs are…) but I think it is worth it.

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  • nopersonalspace@lemmy.world ⁨9⁩ ⁨months⁩ ago

    This is awesome, ZeroToNix is exactly what I was looking for. I’ve been interested in trying NixOS for a while but I always found the documentation obtuse (extensive, which is great, but not super beginner friendly). I’ll give it a try!

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    • nico@r.dcotta.eu ⁨9⁩ ⁨months⁩ ago

      Good luck on your Nix journey! Happy to help if you have questions.

      Of all the tech I use, I think Nix is the most ‘avant-garde’ in that it is super different from the usual methods (scripting, stateful things), but works very well once past the paradigm shift and the learning curve that entails.

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  • jkrtn@lemmy.ml ⁨9⁩ ⁨months⁩ ago

    This is such a wealth of information, thank you! I’m really excited to try this out.

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