From b983fa89793a0c110f70ae42e8187ca3024fc434 Mon Sep 17 00:00:00 2001
From: Grant Slater <github@firefishy.com>
Date: Mon, 18 Aug 2025 18:38:27 +0100
Subject: [PATCH] Use prometheus-exporters github releases instead of slow git
 clone

---
 cookbooks/prometheus/metadata.rb           |  1 -
 cookbooks/prometheus/recipes/default.rb    | 28 +++++++++++++++-------
 cookbooks/prometheus/resources/exporter.rb |  2 +-
 3 files changed, 21 insertions(+), 10 deletions(-)

diff --git a/cookbooks/prometheus/metadata.rb b/cookbooks/prometheus/metadata.rb
index 6148979b9..e3f4dc4d5 100644
--- a/cookbooks/prometheus/metadata.rb
+++ b/cookbooks/prometheus/metadata.rb
@@ -9,6 +9,5 @@ supports          "ubuntu"
 depends           "apache"
 depends           "apt"
 depends           "awscli"
-depends           "git"
 depends           "hardware"
 depends           "networking"
diff --git a/cookbooks/prometheus/recipes/default.rb b/cookbooks/prometheus/recipes/default.rb
index df3ec2ea5..98897e799 100644
--- a/cookbooks/prometheus/recipes/default.rb
+++ b/cookbooks/prometheus/recipes/default.rb
@@ -17,10 +17,12 @@
 # limitations under the License.
 #
 
-include_recipe "git"
 include_recipe "networking"
 
-package "ruby"
+package %w[
+  ruby
+  zstd
+]
 
 if node.internal_ipaddress
   node.default[:prometheus][:mode] = "internal"
@@ -46,13 +48,23 @@ directory "/opt/prometheus" do
   recursive true
 end
 
-git "/opt/prometheus-exporters" do
-  action :sync
-  repository "https://github.com/openstreetmap/prometheus-exporters.git"
-  revision "main"
-  depth 1
-  user "root"
+cache_dir = Chef::Config[:file_cache_path]
+
+remote_file "#{cache_dir}/prometheus-exporters.tar.zst" do
+  source "https://github.com/openstreetmap/prometheus-exporters/releases/latest/download/prometheus-exporters-#{node[:kernel][:machine]}-only.tar.zst"
+  owner "root"
   group "root"
+  mode "644"
+  backup false
+  ignore_failure true
+end
+
+archive_file "/opt/prometheus-exporters" do
+  path "#{cache_dir}/prometheus-exporters.tar.zst"
+  destination "/opt/prometheus-exporters"
+  overwrite true
+  action :nothing
+  subscribes :extract, "remote_file[#{cache_dir}/prometheus-exporters.tar.zst]", :immediately
 end
 
 directory "/etc/prometheus/collectors" do
diff --git a/cookbooks/prometheus/resources/exporter.rb b/cookbooks/prometheus/resources/exporter.rb
index 5075c5d6a..d47b64751 100644
--- a/cookbooks/prometheus/resources/exporter.rb
+++ b/cookbooks/prometheus/resources/exporter.rb
@@ -193,5 +193,5 @@ action_class do
 end
 
 def after_created
-  subscribes :restart, "git[/opt/prometheus-exporters]"
+  subscribes :restart, "archive_file[/opt/prometheus-exporters]"
 end
-- 
2.39.5