Add mysql module

manifests/module/mysql.pp

@@ -0,0 +1,49 @@
+# filebeat::module::mysql
+#
+# @summary
+#   This class manages the Filebeat module for MySQL.
+#
+# @example
+# class { 'filebeat::module::mysql':
+#   error_enabled => true,
+#   error_paths   => [
+#     '/var/log/mysql/error.log',
+#   ],
+#   slowlog_enabled => true,
+#   slowlog_paths   => [
+#     '/var/log/mysql/slow.log',
+#   ],
+# }
+#
+# @param error_enabled
+#   Whether to enable the MySQL error log module. Defaults to false.
+# @param error_paths
+#   An array of absolute paths to the MySQL error log files. Defaults to undef.
+# @param slowlog_enabled
+#   Whether to enable the MySQL slow log module. Defaults to false.
+# @param slowlog_paths
+#   An array of absolute paths to the MySQL slow log files. Defaults to undef.
+#
+class filebeat::module::mysql (
+  Boolean $error_enabled = false,
+  Optional[Array[Stdlib::Absolutepath]] $error_paths = undef,
+  Boolean $slowlog_enabled = false,
+  Optional[Array[Stdlib::Absolutepath]] $slowlog_paths = undef,
+) {
+  filebeat::module { 'mysql':
+    config => {
+      'error'   => delete_undef_values(
+        {
+          'enabled'   => $error_enabled,
+          'var.paths' => $error_paths,
+        }
+      ),
+      'slowlog' => delete_undef_values(
+        {
+          'enabled'   => $slowlog_enabled,
+          'var.paths' => $slowlog_paths,
+        }
+      ),
+    },
+  }
+}

spec/classes/module/mysql_spec.rb

@@ -0,0 +1,60 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe 'filebeat::module::mysql' do
+  let :pre_condition do
+    'include ::filebeat'
+  end
+
+  let(:facts) { 
+    {
+      :kernel => 'Linux',
+      :os => {
+        :family => 'Debian',
+        :name => 'Ubuntu',
+      }
+    } 
+  }
+
+  context 'on default values' do
+    it { is_expected.to compile.with_all_deps }
+
+    it {
+      is_expected.to contain_file('filebeat-module-mysql').with_content(
+      %r{- module: mysql\n\s{2}error:\n\s{4}enabled: false\n\s{2}slowlog:\n\s{4}enabled: false\n\n},
+    )}
+  end
+
+  context 'on error and slowlog enabled with paths' do
+    let(:params) do
+      {
+        'error_enabled' => true,
+        'error_paths' => ['/var/log/mysql/error.log'],
+        'slowlog_enabled' => true,
+        'slowlog_paths' => ['/var/log/mysql/slowlog.log'],
+      }
+    end
+
+    it { is_expected.to compile.with_all_deps }
+
+    it {
+      is_expected.to contain_file('filebeat-module-mysql').with_content(
+        <<-EOS
+### Filebeat configuration managed by Puppet ###
+---
+- module: mysql
+  error:
+    enabled: true
+    var.paths:
+    - "/var/log/mysql/error.log"
+  slowlog:
+    enabled: true
+    var.paths:
+    - "/var/log/mysql/slowlog.log"
+
+EOS
+    )
+    }
+  end
+end