From 0057e3f757a2b475d0c3427cd505c5d1e6e2772a Mon Sep 17 00:00:00 2001 From: blake Date: Tue, 14 Oct 2025 21:25:41 -0500 Subject: [PATCH] testing --- modules/homelab/motd/default.nix | 91 ++++++++++++++++++++++---------- 1 file changed, 64 insertions(+), 27 deletions(-) diff --git a/modules/homelab/motd/default.nix b/modules/homelab/motd/default.nix index 147ffd7..4798dc8 100644 --- a/modules/homelab/motd/default.nix +++ b/modules/homelab/motd/default.nix @@ -15,32 +15,6 @@ })) (lib.filter (s: s.unit != null)) ]; - - # Build script body - motdScript = lib.concatStringsSep "\n" ( - [ - "#!/usr/bin/env bash" - "blue='\\033[34m'" - "red='\\033[31m'" - "reset='\\033[0m'" - "" - "echo \"Hostname: $(hostname)\"" - "echo \"Uptime: $(uptime -p)\"" - "echo \"Load: $(awk '{print $1, $2, $3}' /proc/loadavg)\"" - "echo" - "echo \"Service status:\"" - ] - ++ (map (s: '' - status=$(systemctl is-active ${lib.escapeShellArg s.unit} 2>/dev/null) - if [ "$status" = "active" ]; then - printf "%b%-25s%b %s\\n" "$blue" "${s.name}" "$reset" "running" - else - printf "%b%-25s%b %s\\n" "$red" "${s.name}" "$reset" "FAILED ($status)" - fi - '') - motdServices) - ++ [""] - ); in { options.homelab.motd = { enable = lib.mkEnableOption "enable custom homelab motd"; @@ -48,7 +22,70 @@ in { config = lib.mkIf config.homelab.motd.enable { # write into /etc/profile.d so shells source it at login - environment.etc."profile.d/homelab-motd.sh".text = motdScript; + environment.etc."profile.d/homelab-motd.sh".text = '' + #!/usr/bin/env bash + # Homelab MOTD — pretty status display + # Generated by NixOS + + # ──────────────────────────────────────────────────────────────────────── + # Colors + blue="\033[34m" + red="\033[31m" + cyan="\033[36m" + magenta="\033[35m" + bold="\033[1m" + reset="\033[0m" + + # ──────────────────────────────────────────────────────────────────────── + # System info + hostname=$(hostname) + nixos_ver=$(nixos-version 2>/dev/null || echo "unknown") + kernel_ver=$(uname -r) + + read iface ipv4 <<< "$(ip route get 1.1.1.1 2>/dev/null | awk '/dev/ {for (i=1;i<=NF;i++) if ($i=="dev") iface=$(i+1); if ($1=="src") ip=$2;} END {print iface, ip}')" + + # CPU usage (avg over 1s) + read cpu_a idle_a < <(awk '/^cpu /{print $2+$4,$5}' /proc/stat) + sleep 0.5 + read cpu_b idle_b < <(awk '/^cpu /{print $2+$4,$5}' /proc/stat) + cpu_usage=$(( (100 * (cpu_b - cpu_a - (idle_b - idle_a))) / (cpu_b - cpu_a) )) + + # Memory usage + read total used <<< "$(free -m | awk '/Mem:/ {print $2, $3}')" + mem_pct=$((100 * used / total)) + + # Uptime + uptime_fmt=$(awk '{d=int($1/86400);h=int(($1%86400)/3600);m=int(($1%3600)/60);printf("%dd %dh %dm",d,h,m)}' /proc/uptime) + + # ──────────────────────────────────────────────────────────────────────── + # Display system info + printf "\\n${bold}${cyan}System Info${reset}\\n" + printf " %-15s %s\\n" "Hostname:" "$hostname" + printf " %-15s %s\\n" "Interface:" "${iface:-N/A}" + printf " %-15s %s\\n" "IPv4 Address:" "${ipv4:-N/A}" + printf " %-15s %s\\n" "NixOS Version:" "$nixos_ver" + printf " %-15s %s\\n" "Kernel:" "$kernel_ver" + + printf "\\n${bold}${magenta}Performance${reset}\\n" + printf " %-15s %s%%\\n" "CPU Usage:" "$cpu_usage" + printf " %-15s %s%% of %s MB\\n" "Memory Usage:" "$mem_pct" "$total" + printf " %-15s %s\\n" "Uptime:" "$uptime_fmt" + + printf "\\n${bold}${blue}Service Status${reset}\\n" + + # ──────────────────────────────────────────────────────────────────────── + # Loop through Nix-provided list of services + ${lib.concatStringsSep "\n" (map (s: '' + status=$(systemctl is-active ${lib.escapeShellArg s.unit} 2>/dev/null) + if [ "$status" = "active" ]; then + printf " ${blue}%-25s${reset} %s\\n" "${s.name}" "running" + else + printf " ${red}%-25s${reset} %s\\n" "${s.name}" "FAILED ($status)" + fi + '') motdServices)} + + echo "" + ''; # make sure it is executable environment.etc."profile.d/homelab-motd.sh".mode = "0755";