Revert "Avoid potential dependency cycles when used with other modules (DataDog#463)" (DataDog#506)

This reverts commit 8a29860.

Author: truthbk

manifests/ubuntu/agent5.pp

@@ -25,17 +25,13 @@
   Optional[String] $apt_keyserver = undef,
 ) inherits datadog_agent::params{
 
-  exec { 'apt-transport-https':
-    command => '/usr/bin/apt-get install -y -q apt-transport-https'
-  }
+  ensure_packages(['apt-transport-https'])
 
   if !$skip_apt_key_trusting {
-    $key = {
-      'id' => $apt_key,
-      'server' => $apt_keyserver
+    ::datadog_agent::ubuntu::install_key { [$apt_key]:
+      server => $apt_keyserver,
+      before => Apt::Source['datadog'],
     }
-  } else {
-    $key = {}
   }
 
   # This is a hack - I'm not happy about it, but we should rarely
@@ -71,9 +67,8 @@
     location => $location,
     release  => $release,
     repos    => $repos,
-    key      => $key,
-    require  => Exec['apt-transport-https'],
-    notify   => Exec['datadog_apt-get_remove_agent6'],
+    require  => Package['apt-transport-https'],
+    notify   => [Exec['datadog_apt-get_remove_agent6'],Exec['apt_update']],
   }
 
   package { 'datadog-agent-base':
@@ -84,7 +79,7 @@
   package { $datadog_agent::params::package_name:
     ensure  => $agent_version,
     require => [Apt::Source['datadog'],
-                Class['apt::update']],
+                Exec['apt_update']],
   }
 
   if $service_provider {

manifests/ubuntu/agent6.pp

@@ -16,17 +16,12 @@
   Optional[String] $apt_keyserver = undef,
 ) inherits datadog_agent::params {
 
-  exec { 'apt-transport-https':
-    command => '/usr/bin/apt-get install -y -q apt-transport-https'
-  }
-
+  ensure_packages(['apt-transport-https'])
   if !$skip_apt_key_trusting {
-    $key = {
-      'id' => $apt_key,
-      'server' => $apt_keyserver
+    ::datadog_agent::ubuntu::install_key { [$apt_key]:
+      server => $apt_keyserver,
+      before => Apt::Source['datadog6'],
     }
-  } else {
-    $key = {}
   }
 
   apt::source { 'datadog':
@@ -38,8 +33,8 @@
     location => $location,
     release  => $release,
     repos    => $repos,
-    key      => $key,
-    require  => Exec['apt-transport-https'],
+    require  => Package['apt-transport-https'],
+    notify   =>  Exec['apt_update'],
   }
 
   package { 'datadog-agent-base':
@@ -50,7 +45,7 @@
   package { $datadog_agent::params::package_name:
     ensure  => $agent_version,
     require => [Apt::Source['datadog6'],
-                Class['apt::update']],
+                Exec['apt_update']],
   }
 
   if $service_provider {

manifests/ubuntu/install_key.pp

@@ -0,0 +1,20 @@
+# Resource type: datadog_agent::ubuntu::install_key
+#
+# This resource type install repository keys in Ubuntu
+#
+# Parameters:
+#
+# Actions:
+#
+# Requires:
+#
+# Sample Usage:
+#
+#
+#
+define datadog_agent::ubuntu::install_key($server) {
+  apt::key { $name:
+    id     => $name,
+    server => $server,
+  }
+}

spec/classes/datadog_agent_ubuntu_spec.rb

@@ -16,16 +16,16 @@
   end
 
   # it should install the mirror
-  it { should_not contain_apt__key('Add key: 935F5A436A5A6E8788F0765B226AE980C7A7DA52 from Apt::Source datadog') }
+  it { should_not contain_datadog_agent__ubuntu__install_key('935F5A436A5A6E8788F0765B226AE980C7A7DA52') }
   it do
-    should contain_apt__key('Add key: A2923DFF56EDA6E76E55E492D3A80E30382E94DE from Apt::Source datadog')
+    should contain_datadog_agent__ubuntu__install_key('A2923DFF56EDA6E76E55E492D3A80E30382E94DE')\
   end
   context 'overriding keyserver' do
     let(:params) {{
       apt_keyserver: 'hkp://pool.sks-keyservers.net:80',
     }}
     it do
-      should contain_apt__key('Add key: A2923DFF56EDA6E76E55E492D3A80E30382E94DE from Apt::Source datadog')\
+      should contain_datadog_agent__ubuntu__install_key('A2923DFF56EDA6E76E55E492D3A80E30382E94DE')\
         .with_server('hkp://pool.sks-keyservers.net:80')
     end
   end
@@ -38,7 +38,7 @@
 
   # it should install the packages
   it do
-    should contain_exec('apt-transport-https')\
+    should contain_package('apt-transport-https')\
       .that_comes_before('file[/etc/apt/sources.list.d/datadog.list]')
   end
   it do
@@ -91,7 +91,8 @@
   end
 
   # it should install the mirror
-  it { should contain_apt__key('Add key: A2923DFF56EDA6E76E55E492D3A80E30382E94DE from Apt::Source datadog6') }
+  it { should_not contain_datadog_agent__ubuntu__install_key('935F5A436A5A6E8788F0765B226AE980C7A7DA52') }
+  it { should contain_datadog_agent__ubuntu__install_key('A2923DFF56EDA6E76E55E492D3A80E30382E94DE') }
 
   it do
     should contain_file('/etc/apt/sources.list.d/datadog6.list')\
@@ -101,7 +102,7 @@
 
   # it should install the packages
   it do
-    should contain_exec('apt-transport-https')\
+    should contain_package('apt-transport-https')\
       .that_comes_before('file[/etc/apt/sources.list.d/datadog6.list]')
   end
   it do