Add community prometheus cookbook

2026-07-03 16:35:26 +02:00
parent ec73dd5b57
commit 4cd6c41254
29 changed files with 1430 additions and 0 deletions
@@ -0,0 +1,78 @@
+# frozen_string_literal: true
+
+require 'uri'
+
+module PrometheusCookbook
+  module Helpers
+    def archive_name(component, version, url)
+      basename = ::File.basename(URI.parse(url).path)
+      basename.sub(/(?:\.tar\.gz|\.tgz|\.tar\.bz2|\.tar\.xz|\.zip)\z/, '')
+    rescue URI::InvalidURIError
+      "#{component}-#{version}"
+    end
+
+    def install_dir_parent(install_dir)
+      ::File.dirname(install_dir)
+    end
+
+    def install_dir_name(install_dir)
+      ::File.basename(install_dir)
+    end
+
+    def prometheus_flags(resource)
+      flag_pairs = if Gem::Version.new(resource.version) < Gem::Version.new('2.0.0-alpha.0')
+                     resource.flags.map { |key, value| "-#{key}=#{value}" unless value == '' }
+                   else
+                     resource.cli_options.map { |key, value| "--#{key}=#{value}" unless value == '' } +
+                       resource.cli_flags.map { |flag| "--#{flag}" unless flag == '' }
+                   end
+
+      flag_pairs.compact.join(' ')
+    end
+
+    def prometheus_unit_content(resource)
+      {
+        Unit: {
+          Description: 'Prometheus',
+          After: 'network.target auditd.service',
+        },
+        Service: {
+          Type: 'simple',
+          Environment: "GOMAXPROCS=#{node['cpu']['total'] || 1}",
+          User: resource.user,
+          Group: resource.group,
+          ExecStart: "#{resource.binary} #{prometheus_flags(resource)}",
+          ExecReload: '/bin/kill -HUP $MAINPID',
+          Restart: 'always',
+        },
+        Install: {
+          WantedBy: 'multi-user.target',
+        },
+      }
+    end
+
+    def alertmanager_unit_content(resource)
+      {
+        Unit: {
+          Description: 'Prometheus Alertmanager',
+          After: 'network.target',
+        },
+        Service: {
+          User: resource.user,
+          Group: resource.group,
+          ExecStart: [
+            resource.binary,
+            "--log.level=#{resource.log_level}",
+            "--storage.path=#{resource.storage_path}",
+            "--config.file=#{resource.config_file}",
+            "--web.external-url=#{resource.external_url}",
+          ].join(' '),
+          Restart: 'always',
+        },
+        Install: {
+          WantedBy: 'multi-user.target',
+        },
+      }
+    end
+  end
+end