Add PHP-FPM recipe (#253)

recipes/php_fpm.rb

@@ -0,0 +1,18 @@
+include_recipe 'datadog::dd-agent'
+
+# Build a data structure with configuration.
+# @see https://github.com/DataDog/dd-agent/blob/master/conf.d/php_fpm.yaml.example PHP-FPM Example
+# @example
+#   node.override['datadog']['php_fpm']['instances'] = [
+#     {
+#       'status_url' => 'http://localhost/status',
+#       'ping_url' => 'http://localhost/ping',
+#       'ping_reply' => 'pong',
+#       'user' => 'bits',
+#       'password' => 'D4T4D0G',
+#       'tags' => ['prod']
+#     }
+#   ]
+datadog_monitor 'php_fpm' do
+  instances node['datadog']['php_fpm']['instances']
+end

spec/integrations/php_fpm_spec.rb

@@ -0,0 +1,67 @@
+describe 'datadog::php_fpm' do
+  expected_yaml = <<-EOF
+  init_config:
+
+  instances:
+    - status_url: http://localhost/status
+      user: user
+      password: mypassword
+      tags:
+        - optional_tag1
+        - optional_tag2
+    - ping_url: http://localhost/ping
+      ping_reply: pong
+      user: user
+      password: mypassword
+      tags:
+        - optional_tag1
+        - optional_tag2
+  EOF
+
+  cached(:chef_run) do
+    ChefSpec::SoloRunner.new(step_into: ['datadog_monitor']) do |node|
+      node.automatic['languages'] = { 'python' => { 'version' => '2.7.2' } }
+
+      node.set['datadog'] = {
+        'api_key' => 'someapikey',
+        'php_fpm' => {
+          'instances' => [
+            {
+              'password' => 'mypassword',
+              'status_url' => 'http://localhost/status',
+              'user' => 'user',
+              'tags' => [
+                'optional_tag1',
+                'optional_tag2'
+              ]
+            },
+            {
+              'password' => 'mypassword',
+              'ping_url' => 'http://localhost/ping',
+              'ping_reply' => 'pong',
+              'user' => 'user',
+              'tags' => [
+                'optional_tag1',
+                'optional_tag2'
+              ]
+            }
+          ]
+        }
+      }
+    end.converge(described_recipe)
+  end
+
+  subject { chef_run }
+
+  it_behaves_like 'datadog-agent'
+
+  it { is_expected.to include_recipe('datadog::dd-agent') }
+
+  it { is_expected.to add_datadog_monitor('php_fpm') }
+
+  it 'renders expected YAML config file' do
+    expect(chef_run).to render_file('/etc/dd-agent/conf.d/php_fpm.yaml').with_content { |content|
+      expect(YAML.load(content).to_json).to be_json_eql(YAML.load(expected_yaml).to_json)
+    }
+  end
+end

templates/default/php_fpm.yaml.erb

@@ -0,0 +1,4 @@
+<%= JSON.parse(({ 'instances' => @instances }).to_json).to_yaml %>
+
+init_config:
+# nothing to add here