added support for mongo 5.x

lib/puppet/provider/mongodb.rb

@@ -183,4 +183,13 @@ def self.mongo_4?
   def mongo_4?
     self.class.mongo_4?
   end
+
+  def self.mongo_5?
+    v = mongo_version
+    !v[%r{^5\.}].nil?
+  end
+
+  def mongo_5?
+    self.class.mongo_5?
+  end
 end

lib/puppet/provider/mongodb_user/mongodb.rb

@@ -61,7 +61,7 @@ def create
         digestPassword: false
       }
 
-      if mongo_4?
+      if mongo_4? || mongo_5?
         # SCRAM-SHA-256 requires digestPassword to be true.
         command[:mechanisms] = ['SCRAM-SHA-1']
       end

manifests/repo.pp

@@ -57,6 +57,7 @@
           default => undef
         }
         $key = "${mongover[0]}.${mongover[1]}" ? {
+          '5.0'   => 'F5679A222C647C87527C2F8CB00A0BD1E2C63C11',
           '4.4'   => '20691EEC35216C63CAF66CE1656408E390CFB1F5',
           '4.2'   => 'E162F504A20CDF15827F718D4B7C549A058F8B6B',
           '4.0'   => '9DA31620334BD75D9DCB49F368818C72E52529D4',

spec/unit/puppet/provider/mongodb_spec.rb

@@ -0,0 +1,29 @@
+require 'spec_helper'
+
+require 'puppet/provider/mongodb'
+
+provider_class = Puppet::Provider::Mongodb
+describe provider_class do
+  before do
+    # Clear the cached version before each test
+    provider_class.remove_instance_variable(:@mongo_version) \
+      if provider_class.instance_variable_defined?(:@mongo_version)
+  end
+
+  describe 'mongo version detection' do
+    v = [
+      { :return => '2.6.x', :result => { '26' => true,  '4' => false, '5' => false } },
+      { :return => '4.x.x', :result => { '26' => false, '4' => true,  '5' => false } },
+      { :return => '5.x.x', :result => { '26' => false, '4' => false, '5' => true } },
+      { :return => 'x.x.x', :result => { '26' => false, '4' => false, '5' => false } }
+    ]
+    v.each do |version|
+      it "version detection #{version[:return]}" do
+        allow(provider_class).to receive(:mongo_eval).with('db.version()').and_return(version[:return])
+        expect(provider_class.mongo_26?).to be version[:result]['26']
+        expect(provider_class.mongo_4?).to be version[:result]['4']
+        expect(provider_class.mongo_5?).to be version[:result]['5']
+      end
+    end
+  end
+end