From dd255955ca85a4f17b86b402493a4baadf45e2b4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Torjus=20H=C3=A5kestad?= <torjus@usit.uio.no>
Date: Wed, 28 May 2025 21:03:25 +0200
Subject: [PATCH] Rework build-flakes script

---
 services/nix-cache/build-flakes.nix | 16 +---------
 services/nix-cache/build-flakes.sh  | 48 +++++++++++++++++++++++++++++
 2 files changed, 49 insertions(+), 15 deletions(-)
 create mode 100644 services/nix-cache/build-flakes.sh

diff --git a/services/nix-cache/build-flakes.nix b/services/nix-cache/build-flakes.nix
index 808749d..38c028b 100644
--- a/services/nix-cache/build-flakes.nix
+++ b/services/nix-cache/build-flakes.nix
@@ -8,21 +8,7 @@ let
       nixos-rebuild
       jq
     ];
-    text = ''
-      cd /root/nixos-servers
-      git pull
-      echo "Starting nixos-servers builds"
-      for host in $(nix flake show --json| jq -r '.nixosConfigurations | keys[]'); do
-        echo "Building $host"
-        nixos-rebuild --verbose -L --flake ".#$host" build
-      done
-      echo "All nixos-servers builds complete"
-
-      echo "Building gunter"
-      cd /root/nixos
-      git pull
-      nixos-rebuild --verbose -L --flake ".#gunter" build
-    '';
+    text = builtins.readFile ./build-flakes.sh;
   };
 in
 {
diff --git a/services/nix-cache/build-flakes.sh b/services/nix-cache/build-flakes.sh
new file mode 100644
index 0000000..d3de19f
--- /dev/null
+++ b/services/nix-cache/build-flakes.sh
@@ -0,0 +1,48 @@
+#!/usr/bin/env bash
+
+JOB_NAME="build_flakes"
+
+cd /root/nixos-servers
+git pull
+echo "Starting nixos-servers builds"
+for host in $(nix flake show --json| jq -r '.nixosConfigurations | keys[]'); do
+  echo "Building $host"
+  nixos-rebuild --verbose -L --flake ".#$host" build
+  if [ $? -ne 0 ]; then
+    echo "Build failed for $host"
+    cat <<EOF | curl --data-binary @- "https://pushgw.home.2rjus.net/metrics/job/$JOB_NAME"
+# TYPE build_flakes_error gauge
+# HELP build_flakes_error 0 if the build was successful, 1 if it failed
+build_flakes_error{instance="$HOSTNAME", host="$host"} 1
+EOF
+  else 
+    echo "Build successful for $host"
+    cat <<EOF | curl --data-binary @- "https://pushgw.home.2rjus.net/metrics/job/$JOB_NAME"
+# TYPE build_flakes_error gauge
+# HELP build_flakes_error 0 if the build was successful, 1 if it failed
+build_flakes_error{instance="$HOSTNAME", host="$host"} 0
+EOF
+  fi
+done
+echo "All nixos-servers builds complete"
+
+echo "Building gunter"
+cd /root/nixos
+git pull
+host="gunter"
+nixos-rebuild --verbose -L --flake ".#gunter" build
+if [ $? -ne 0 ]; then
+    echo "Build failed for $host"
+    cat <<EOF | curl --data-binary @- "https://pushgw.home.2rjus.net/metrics/job/$JOB_NAME"
+# TYPE build_flakes_error gauge
+# HELP build_flakes_error 0 if the build was successful, 1 if it failed
+build_flakes_error{instance="$HOSTNAME", host="gunter"} 1
+EOF
+else 
+    echo "Build successful for $host"
+    cat <<EOF | curl --data-binary @- "https://pushgw.home.2rjus.net/metrics/job/$JOB_NAME"
+# TYPE build_flakes_error gauge
+# HELP build_flakes_error 0 if the build was successful, 1 if it failed
+build_flakes_error{instance="$HOSTNAME", host="gunter"} 0
+EOF
+fi