rename raspberry pi hostname and switch to flake

flake.nix

@@ -36,5 +36,13 @@
           }
         ];
       };
+      nixosConfigurations.ursa-minor = nixpkgs.lib.nixosSystem
+        {
+          inherit pkgs;
+          inherit system;
+          modules = [
+            ./ursa-minor/configuration.nix
+          ];
+        };
     };
 }

ursa-minor/configuration.nix

@@ -27,7 +27,7 @@
     "cgroup_enable=memory"
   ];
 
-  networking.hostName = "nixos-rpi"; # Define your hostname.
+  networking.hostName = "ursa-minor"; # Define your hostname.
   # Pick only one of the below networking options.
   networking.wireless.enable = true; # Enables wireless support via wpa_supplicant.
   # networking.networkmanager.enable = true;  # Easiest to use and most distros use this by default.
@@ -39,67 +39,6 @@
   # networking.proxy.default = "http://user:password@proxy:port/";
   # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";
 
-  # [Unit]
-  # Description=Lightweight Kubernetes
-  # Documentation=https://k3s.io
-  # Wants=network-online.target
-  # After=network-online.target
-
-  # [Install]
-  # WantedBy=multi-user.target
-
-  # [Service]
-  # Type=${SYSTEMD_TYPE}
-  # EnvironmentFile=-/etc/default/%N
-  # EnvironmentFile=-/etc/sysconfig/%N
-  # EnvironmentFile=-${FILE_K3S_ENV}
-  # KillMode=process
-  # Delegate=yes
-  # # Having non-zero Limit*s causes performance problems due to accounting overhead
-  # # in the kernel. We recommend using cgroups to do container-local accounting.
-  # LimitNOFILE=1048576
-  # LimitNPROC=infinity
-  # LimitCORE=infinity
-  # TasksMax=infinity
-  # TimeoutStartSec=0
-  # Restart=always
-  # RestartSec=5s
-  # ExecStartPre=/bin/sh -xc '! /usr/bin/systemctl is-enabled --quiet nm-cloud-setup.service 2>/dev/null'
-  # ExecStartPre=-/sbin/modprobe br_netfilter
-  # ExecStartPre=-/sbin/modprobe overlay
-  # ExecStart=${BIN_DIR}/k3s \\
-  #     ${CMD_K3S_EXEC}
-
-  # Adapted from https://get.k3s.io/
-  # systemd.services.k3s = {
-  #   description = "Lightweight Kubernetes";
-  #   documentation = [ "https://k3s.io" ];
-  #   serviceConfig = {
-  #     Type = "notify";
-  #     # EnvironmentFile = "-/etc/default/%N";
-  #     # EnvironmentFile = "-/etc/sysconfig/%N";
-  #     # EnvironmentFile = -${FILE_K3S_ENV};
-  #     KillMode = "process";
-  #     Delegate = "yes";
-  #     # Having non-zero Limit*s causes performance problems due to accounting overhead
-  #     # in the kernel. We recommend using cgroups to do container-local accounting.
-  #     LimitNOFILE = 1048576;
-  #     LimitNPROC = "infinity";
-  #     LimitCORE = "infinity";
-  #     TasksMax = "infinity";
-  #     TimeoutStartSec = 0;
-  #     Restart = "always";
-  #     RestartSec = "5 s";
-  #     # ExecStartPre = /bin/sh - xc '! /usr/bin/systemctl is-enabled --quiet nm-cloud-setup.service 2>/dev/null';
-  #     # ExecStartPre = -/sbin/modprobe br_netfilter;
-  #     # ExecStartPre = -/sbin/modprobe overlay;
-  #     ExecStart = "${pkgs.k3s}/bin/k3s server --write-kubeconfig-mode=644";
-  #   };
-  #   after = [ "network-online.target" ];
-  #   wants = [ "network-online.target" ];
-  #   wantedBy = [ "multi-user.target" ];
-  # };
-
   services.k3s.enable = true;
   services.k3s.role = "server";
   services.k3s.extraFlags = toString [
@@ -107,7 +46,7 @@
   ];
 
   environment.variables = {
-    KUBECONFIG = "/home/nixos/.kube/k3s.yaml";
+    KUBECONFIG = "/home/nixos/.kube/config";
   };
 
   # Define a user account. Don't forget to set a password with ‘passwd’.