Implement firewalling in tripleo::firewall

Currently firewalling is implemented in tripleo/init.pp this commit
moves it to its own scope tripleo/firewall.pp.

This is done so that in tripleo-heat-templates we can have a simple and
generic `include tripleo::firewall` in every manifest - unconditional.
The rest of the behavior will all be managed by hiera.

If a user wants to enable firewalling:

```
tripleo::firewall::manage_firewall: true
```

If a user wants to specify firewall rules:

```
tripleo::firewall::firewall_rules:
  '103 mongod':
    port: 27017
```

Change-Id: I144c60db2a568a94dce5b51257f1d10980173325

4 files changed, 206 insertions, 160 deletions

diff --git a/manifests/firewall.pp b/manifests/firewall.pp
new file mode 100644
index 0000000..7698881
--- /dev/null
+++ b/manifests/firewall.pp
@@ -0,0 +1,91 @@
+#
+# Copyright (C) 2015 eNovance SAS <licensing@enovance.com>
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+# == Class: tripleo
+#
+# Configure the TripleO firewall
+#
+# === Parameters:
+#
+# [*manage_firewall*]
+#  (optional) Completely enable or disable firewall settings
+#  (false means disabled, and true means enabled)
+#  Defaults to false
+#
+# [*firewall_rules*]
+#   (optional) Allow to add custom firewall rules
+#   Should be an hash.
+#   Default to {}
+#
+# [*purge_firewall_rules*]
+#   (optional) Boolean, purge all firewall resources
+#   Defaults to false
+#
+# [*firewall_pre_extras*]
+#   (optional) Allow to add custom parameters to firewall rules (pre stage)
+#   Should be an hash.
+#   Default to {}
+#
+# [*firewall_post_extras*]
+#   (optional) Allow to add custom parameters to firewall rules (post stage)
+#   Should be an hash.
+#   Default to {}
+#
+class tripleo::firewall(
+  $manage_firewall      = false,
+  $firewall_rules       = {},
+  $purge_firewall_rules = false,
+  $firewall_pre_extras  = {},
+  $firewall_post_extras = {},
+) {
+
+  include ::stdlib
+
+  if $manage_firewall {
+
+    # Only purges IPv4 rules
+    if $purge_firewall_rules {
+      resources { 'firewall':
+        purge => true
+      }
+    }
+
+    # anyone can add your own rules
+    # example with Hiera:
+    #
+    # tripleo::firewall::rules:
+    #   '300 allow custom application 1':
+    #     port: 999
+    #     proto: udp
+    #     action: accept
+    #   '301 allow custom application 2':
+    #     port: 8081
+    #     proto: tcp
+    #     action: accept
+    #
+    create_resources('tripleo::firewall::rule', $firewall_rules)
+
+    ensure_resource('class', 'tripleo::firewall::pre', {
+      'firewall_settings' => $firewall_pre_extras,
+      'stage'             => 'setup',
+    })
+
+    ensure_resource('class', 'tripleo::firewall::post', {
+      'stage'             => 'runtime',
+      'firewall_settings' => $firewall_post_extras,
+    })
+  }
+
+}
diff --git a/manifests/init.pp b/manifests/init.pp
index cdaf95a..9f6d775 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -17,75 +17,7 @@
 #
 # Installs the system requirements
 #
-# === Parameters:
-#
-# [*manage_firewall*]
-#  (optional) Completely enable or disable firewall settings
-#  (false means disabled, and true means enabled)
-#  Defaults to false
-#
-# [*firewall_rules*]
-#   (optional) Allow to add custom firewall rules
-#   Should be an hash.
-#   Default to {}
-#
-# [*purge_firewall_rules*]
-#   (optional) Boolean, purge all firewall resources
-#   Defaults to false
-#
-# [*firewall_pre_extras*]
-#   (optional) Allow to add custom parameters to firewall rules (pre stage)
-#   Should be an hash.
-#   Default to {}
-#
-# [*firewall_post_extras*]
-#   (optional) Allow to add custom parameters to firewall rules (post stage)
-#   Should be an hash.
-#   Default to {}
-#
-class tripleo(
-  $manage_firewall      = false,
-  $firewall_rules       = {},
-  $purge_firewall_rules = false,
-  $firewall_pre_extras  = {},
-  $firewall_post_extras = {},
-) {
-
-  include ::stdlib
-
-  if $manage_firewall {
-
-    # Only purges IPv4 rules
-    if $purge_firewall_rules {
-      resources { 'firewall':
-        purge => true
-      }
-    }
-
-    # anyone can add your own rules
-    # example with Hiera:
-    #
-    # tripleo::firewall::rules:
-    #   '300 allow custom application 1':
-    #     port: 999
-    #     proto: udp
-    #     action: accept
-    #   '301 allow custom application 2':
-    #     port: 8081
-    #     proto: tcp
-    #     action: accept
-    #
-    create_resources('tripleo::firewall::rule', $firewall_rules)
-
-    ensure_resource('class', 'tripleo::firewall::pre', {
-      'firewall_settings' => $firewall_pre_extras,
-      'stage'             => 'setup',
-    })
 
-    ensure_resource('class', 'tripleo::firewall::post', {
-      'stage'             => 'runtime',
-      'firewall_settings' => $firewall_post_extras,
-    })
-  }
+class tripleo{
 
 }
diff --git a/spec/classes/tripleo_firewall_spec.rb b/spec/classes/tripleo_firewall_spec.rb
new file mode 100644
index 0000000..c1249b9
--- /dev/null
+++ b/spec/classes/tripleo_firewall_spec.rb
@@ -0,0 +1,114 @@
+#
+# Copyright (C) 2015 eNovance SAS <licensing@enovance.com>
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+# Unit tests for tripleo
+#
+
+require 'spec_helper'
+
+describe 'tripleo::firewall' do
+
+  let :params do
+    { }
+  end
+
+  shared_examples_for 'tripleo node' do
+
+    context 'with firewall enabled' do
+      before :each do
+        params.merge!(
+          :manage_firewall => true,
+        )
+      end
+
+      it 'configure basic pre firewall rules' do
+        is_expected.to contain_firewall('000 accept related established rules').with(
+          :proto  => 'all',
+          :state  => ['RELATED', 'ESTABLISHED'],
+          :action => 'accept',
+        )
+        is_expected.to contain_firewall('001 accept all icmp').with(
+          :proto  => 'icmp',
+          :action => 'accept',
+          :state  => ['NEW'],
+        )
+        is_expected.to contain_firewall('002 accept all to lo interface').with(
+          :proto   => 'all',
+          :iniface => 'lo',
+          :action  => 'accept',
+          :state   => ['NEW'],
+        )
+        is_expected.to contain_firewall('003 accept ssh').with(
+          :port   => '22',
+          :proto  => 'tcp',
+          :action => 'accept',
+          :state  => ['NEW'],
+        )
+      end
+
+      it 'configure basic post firewall rules' do
+        is_expected.to contain_firewall('999 drop all').with(
+          :proto  => 'all',
+          :action => 'drop',
+          :source => '0.0.0.0/0',
+        )
+      end
+    end
+
+    context 'with custom firewall rules' do
+      before :each do
+        params.merge!(
+          :manage_firewall     => true,
+          :firewall_rules => {
+            '300 add custom application 1' => {'port' => '999', 'proto' => 'udp', 'action' => 'accept'},
+            '301 add custom application 2' => {'port' => '8081', 'proto' => 'tcp', 'action' => 'accept'}
+          }
+        )
+      end
+      it 'configure custom firewall rules' do
+        is_expected.to contain_firewall('300 add custom application 1').with(
+          :port   => '999',
+          :proto  => 'udp',
+          :action => 'accept',
+          :state  => ['NEW'],
+        )
+        is_expected.to contain_firewall('301 add custom application 2').with(
+          :port   => '8081',
+          :proto  => 'tcp',
+          :action => 'accept',
+          :state  => ['NEW'],
+        )
+      end
+    end
+
+  end
+
+  context 'on Debian platforms' do
+    let :facts do
+      { :osfamily => 'Debian' }
+    end
+
+    it_configures 'tripleo node'
+  end
+
+  context 'on RedHat platforms' do
+    let :facts do
+      { :osfamily => 'RedHat' }
+    end
+
+    it_configures 'tripleo node'
+  end
+
+end
diff --git a/spec/classes/tripleo_init_spec.rb b/spec/classes/tripleo_init_spec.rb
index 9f01857..57b45e2 100644
--- a/spec/classes/tripleo_init_spec.rb
+++ b/spec/classes/tripleo_init_spec.rb
@@ -20,95 +20,4 @@ require 'spec_helper'
 
 describe 'tripleo' do
 
-  let :params do
-    { }
-  end
-
-  shared_examples_for 'tripleo node' do
-
-    context 'with firewall enabled' do
-      before :each do
-        params.merge!(
-          :manage_firewall => true,
-        )
-      end
-
-      it 'configure basic pre firewall rules' do
-        is_expected.to contain_firewall('000 accept related established rules').with(
-          :proto  => 'all',
-          :state  => ['RELATED', 'ESTABLISHED'],
-          :action => 'accept',
-        )
-        is_expected.to contain_firewall('001 accept all icmp').with(
-          :proto  => 'icmp',
-          :action => 'accept',
-          :state  => ['NEW'],
-        )
-        is_expected.to contain_firewall('002 accept all to lo interface').with(
-          :proto   => 'all',
-          :iniface => 'lo',
-          :action  => 'accept',
-          :state   => ['NEW'],
-        )
-        is_expected.to contain_firewall('003 accept ssh').with(
-          :port   => '22',
-          :proto  => 'tcp',
-          :action => 'accept',
-          :state  => ['NEW'],
-        )
-      end
-
-      it 'configure basic post firewall rules' do
-        is_expected.to contain_firewall('999 drop all').with(
-          :proto  => 'all',
-          :action => 'drop',
-          :source => '0.0.0.0/0',
-        )
-      end
-    end
-
-    context 'with custom firewall rules' do
-      before :each do
-        params.merge!(
-          :manage_firewall     => true,
-          :firewall_rules => {
-            '300 add custom application 1' => {'port' => '999', 'proto' => 'udp', 'action' => 'accept'},
-            '301 add custom application 2' => {'port' => '8081', 'proto' => 'tcp', 'action' => 'accept'}
-          }
-        )
-      end
-      it 'configure custom firewall rules' do
-        is_expected.to contain_firewall('300 add custom application 1').with(
-          :port   => '999',
-          :proto  => 'udp',
-          :action => 'accept',
-          :state  => ['NEW'],
-        )
-        is_expected.to contain_firewall('301 add custom application 2').with(
-          :port   => '8081',
-          :proto  => 'tcp',
-          :action => 'accept',
-          :state  => ['NEW'],
-        )
-      end
-    end
-
-  end
-
-  context 'on Debian platforms' do
-    let :facts do
-      { :osfamily => 'Debian' }
-    end
-
-    it_configures 'tripleo node'
-  end
-
-  context 'on RedHat platforms' do
-    let :facts do
-      { :osfamily => 'RedHat' }
-    end
-
-    it_configures 'tripleo node'
-  end
-
 end