Fix Linting

Fix Linting according to best Practices stated in PDK-Templates.

PDK and the PDK-Templates themselves cannot currently be updated,
because the current Rspec-Tests together with the custom spec_helper.rb
cannot be used with recent PDK-Templates.

.fixtures.yml

@@ -1,27 +1,13 @@
+---
 fixtures:
-  repositories:
-    stdlib:
-      repo: "git://github.com/puppetlabs/puppetlabs-stdlib.git"
-      ref: "4.25.0"
-    concat:
-      repo: "git://github.com/puppetlabs/puppetlabs-concat.git"
-      ref: "4.1.1"
-    apt:
-      repo: "git://github.com/puppetlabs/puppetlabs-apt.git"
-      ref: "4.5.0"
-    puppetserver_gem:
-      repo: "git://github.com/puppetlabs/puppetlabs-puppetserver_gem.git"
-      ref: "1.0.0"
   forge_modules:
-    yumrepo_core:
-      repo: "puppetlabs/yumrepo_core"
-      ref: "1.2.0"
-    powershell:
-      repo: "puppetlabs/powershell"
-      ref: "4.1.0"
-    zypprepo:
-      repo: "puppet/zypprepo"
-      ref: "3.1.0"
+    powershell: puppetlabs/powershell
+    yumrepo_core: puppetlabs/yumrepo_core
+    zypprepo: puppet/zypprepo
+  repositories:
+    apt: https://github.com/puppetlabs/puppetlabs-apt
+    concat: https://github.com/puppetlabs/puppetlabs-concat
+    puppetserver_gem: https://github.com/puppetlabs/puppetlabs-puppetserver_gem
+    stdlib: https://github.com/puppetlabs/puppetlabs-stdlib
   symlinks:
     custom_datadog: "#{source_dir}/spec/custom_fixtures/custom_datadog"
-    datadog_agent: "#{source_dir}"

environments/centos7/Vagrantfile

@@ -3,7 +3,7 @@ Vagrant.configure("2") do |config|
   config.vm.provision "file", source: "../../environments/etc", destination: "$HOME/puppet"
   config.vm.synced_folder "../../", "/puppet-datadog-agent"
   config.vm.provision "shell", inline: <<-SHELL
-    #install puppet 5
+    # install puppet 5
     rpm -ivh http://yum.puppetlabs.com/puppet5-release-el-7.noarch.rpm
     yum install -y puppet
     ln -s /opt/puppetlabs/puppet/bin/puppet /usr/bin/puppet

environments/centos8/Vagrantfile

@@ -3,7 +3,7 @@ Vagrant.configure("2") do |config|
   config.vm.provision "file", source: "../../environments/etc", destination: "$HOME/puppet"
   config.vm.synced_folder "../../", "/puppet-datadog-agent"
   config.vm.provision "shell", inline: <<-SHELL
-    #install puppet 6
+    # install puppet 6
     dnf install -y https://yum.puppetlabs.com/puppet-release-el-8.noarch.rpm
     dnf install -y puppet
 

environments/etc/manifests/site.pp

@@ -1,9 +1,8 @@
 node default {
-
   class { 'datadog_agent':
     api_key             => 'somenonnullapikeythats32charlong',
     agent_extra_options => {
-        use_http => true,
+      use_http => true,
     },
     # Hostname is necessary for Agent to start up properly in container since 7.40.0
     # https://github.com/DataDog/datadog-agent/issues/14152#issuecomment-1301842615
@@ -24,5 +23,4 @@
     username => 'status',
     password => 'hunter1',
   }
-
 }

environments/opensuse15/Vagrantfile

@@ -5,7 +5,7 @@ Vagrant.configure("2") do |config|
   config.vm.provision "file", source: "../../environments/etc", destination: "$HOME/puppet"
   config.vm.synced_folder "../../", "/puppet-datadog-agent"
   config.vm.provision "shell", inline: <<-SHELL
-    #install puppet 6
+    # install puppet 6
     zypper ar -G https://yum.puppet.com/puppet/sles/15/x86_64/ puppet-repo
     zypper install -y puppet-agent
     ln -s /opt/puppetlabs/puppet/bin/puppet /usr/bin/puppet

environments/ubuntu1604/Vagrantfile

@@ -5,7 +5,7 @@ Vagrant.configure("2") do |config|
   config.vm.synced_folder "../../", "/puppet-datadog-agent"
   config.vm.provision "shell", inline: <<-SHELL
 
-    #install puppet 4
+    # install puppet 4
     ln -s /opt/puppetlabs/puppet/bin/puppet /usr/bin/puppet
 
     # install modules

functions/tag6.pp

@@ -9,7 +9,7 @@ function datadog_agent::tag6(
 ) {
   if $tag_names =~ Array {
     $tags = $tag_names.reduce([]) |$_tags , $tag| {
-        concat($_tags, datadog_agent::tag6($tag, $lookup_fact, $lookup_table))
+      concat($_tags, datadog_agent::tag6($tag, $lookup_fact, $lookup_table))
     }
   } else {
     if $lookup_fact =~ String {

lib/puppet/reports/datadog_reports.rb

@@ -127,7 +127,7 @@ def process
     Puppet.debug "Sending metrics for #{@msg_host} to Datadog"
     @dog.batch_metrics do
       metrics.each do |metric, data|
-        data.values.each do |val|
+        data.each_value do |val|
           name = "puppet.#{val[1].tr(' ', '_')}.#{metric}".downcase
           value = val[2]
           @dog.emit_point(name.to_s, value, host: @msg_host.to_s)
@@ -137,7 +137,7 @@ def process
 
     facts = Puppet::Node::Facts.indirection.find(host).values
     facts_tags = REPORT_FACT_TAGS.map { |name| "#{name}:#{facts.dig(*name.split('.'))}" }
-    trusted_facts = (Puppet.lookup(:trusted_information) { Hash.new }).to_h
+    trusted_facts = (Puppet.lookup(:trusted_information) { {} }).to_h
     trusted_fact_tags = REPORT_TRUSTED_FACT_TAGS.map { |name| "#{name}:#{trusted_facts.dig(*name.split('.'))}" }
     dog_tags = facts_tags + trusted_fact_tags