test restructure

2026-05-02 17:43:53 -05:00
parent 6fdc826b2a
commit 7302648b57
59 changed files with 3151 additions and 25 deletions
@@ -0,0 +1,98 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}: let
+  inherit (lib) mkIf mkOption types filterAttrs mapAttrsToList;
+  cfg = config.homelab.motd;
+
+  # collect services to display
+  motd_list =
+    mapAttrsToList (_: v: v.motd)
+    (filterAttrs (_: v: v ? motd && v.motd != null) config.homelab);
+in {
+  options.homelab.motd = {
+    enable = mkOption {
+      type = types.bool;
+      default = true;
+      description = "enable motd script";
+    };
+  };
+
+  config = mkIf cfg.enable {
+    environment.etc."motd".text = ''
+      #!/usr/bin/env bash
+
+      active=$'\033[1;34m'
+      inactive=$'\033[1;31m'
+      headings=$'\033[1;35m'
+      bold=$'\e[1m'
+      reset=$'\033[0m'
+      memory=`free -m | awk 'NR==2{printf "%s/%sMB (%.2f%%)\n", $3,$2,$3*100 / $2 }'`
+      load1=`cat /proc/loadavg | awk {'print $1'}`
+      load5=`cat /proc/loadavg | awk {'print $2'}`
+      load15=`cat /proc/loadavg | awk {'print $3'}`
+      uptime=`cat /proc/uptime | cut -f1 -d.`
+      up_days=$((uptime/60/60/24))
+      up_hours=$((uptime/60/60%24))
+      up_mins=$((uptime/60%60))
+      up_secs=$((uptime%60))
+      nixos_version=$(nixos-version | sed -E 's/^([0-9]{2}\.[0-9]{2}).*\(([^)]+)\)$/\1 (\2)/')
+      cpu_usage=$(top -bn1 | grep "Cpu(s)" | awk '{print 100 - $8 "%"}')
+      mem_total=$(grep MemTotal /proc/meminfo | awk '{print $2}')
+      mem_avail=$(grep MemAvailable /proc/meminfo | awk '{print $2}')
+      mem_used=$((mem_total - mem_avail))
+      mem_percent=$((100 * mem_used / mem_total))
+      uptime_fmt=$(uptime -p 2>/dev/null || cat /proc/uptime | awk '{print int($1/3600)"h "int(($1%3600)/60)"m"}')
+
+      printf "$bold welcome to $(hostname)!$reset\n"
+      printf "\n"
+      printf "$bold  * %-20s$reset %s\n" "Release" "$nixos_version"
+      printf "$bold  * %-20s$reset %s\n" "Kernel" "$(uname -rs)"
+      printf "\n"
+      printf "$bold  * %-20s$reset %s\n" "CPU usage" "$load1, $load5, $load15 (1, 5, 15 min)"
+      printf "$bold  * %-20s$reset %s\n" "Memory" "$memory"
+      printf "$bold  * %-20s$reset %s\n" "System uptime" "$up_days days $up_hours hours $up_mins minutes $up_secs seconds"
+
+      echo
+
+      # --- services ---
+      echo -e "''${headings}homelab services:''${reset}"
+
+      ${lib.concatStringsSep "\n" (map (service: ''
+          if systemctl list-units --type=service --all | grep -q "${service}"; then
+            status=$(systemctl is-active ${service} 2>/dev/null)
+            if [ "$status" = "active" ]; then
+                printf "%-32s%s\n" "  ''${active}[${service}]''${reset}" "running"
+            else
+                printf "%-32s%s\n" "  ''${active}[${service}]''${reset}" "not running"
+            fi
+          else
+              printf "%-32s%s\n" "  ''${active}[${service}]''${reset}" "not found"
+          fi
+        '')
+        motd_list)}
+
+      echo
+
+      # --- gameservers ---
+      echo -e "''${headings}gameservers:''${reset}"
+        for service in velocity smp superflat bento cobblemon; do
+          status=$(systemctl is-active $service 2>/dev/null)
+          if [ "$status" = "active" ]; then
+              printf "%-32s%s\n" "  ''${active}[$service]''${reset}" "running"
+          else
+              printf "%-32s%s\n" "  ''${active}[$service]''${reset}" "not running"
+          fi
+        done
+      echo
+    '';
+
+    environment.etc."motd".mode = "0755";
+
+    programs.zsh.interactiveShellInit = ''
+      /etc/motd
+    '';
+  };
+}