Adds service for managing securetty

This adds the ability to manage the securetty file.

By allowing management of securetty, operators can limit root
console access and improve security through hardening.

Change-Id: Ic4647fb823bd112648c5b8d102913baa8b4dac1c
Closes-Bug: #1665042

manifests/profile/base/securetty.pp

@@ -0,0 +1,46 @@
+# Copyright 2016 Red Hat, Inc.
+# All Rights Reserved.
+#
+# 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::profile::base::securetty
+#
+# Sets securetty Parameters
+#
+# === Parameters
+#
+# [*step*]
+#  (Optional) The current step in deployment. See tripleo-heat-templates
+#  for more details.
+#  Defaults to hiera('step')
+#
+# [*tty_list*]
+#  Hash of values for /etc/securetty console
+#  Defaults to hiera('securetty::tty_list')
+#
+class tripleo::profile::base::securetty (
+  $step = hiera('step'),
+  $tty_list = hiera('tty_list)', []),
+) {
+  if $step >=1 {
+    $ttys = join( $tty_list, "\n")
+
+    file { '/etc/securetty':
+      ensure  => file,
+      content => template( 'tripleo/securetty/securetty.erb' ),
+      owner   => 'root',
+      group   => 'root',
+      mode    => '0600'
+    }
+  }
+}

releasenotes/notes/securetty-6a10eefd601e45ca.yaml

@@ -0,0 +1,6 @@
+---
+features:
+  - |
+    Allows granular level of control over the `/etc/securetty` file.
+    By allowing operators to specify the values in securetty, they
+    can improve security by limiting root console access.

spec/classes/tripleo_profile_base_securetty_spec.rb

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+# Copyright 2017 Red Hat, Inc.
+# All Rights Reserved.
+#
+# 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::profile::base::securetty
+#
+
+require 'spec_helper'
+
+describe 'tripleo::profile::base::securetty' do
+
+  shared_examples_for 'tripleo::profile::base::securetty' do
+
+    context 'with defaults step 1' do
+       let(:params) {{ :step => 1 }}
+       it { is_expected.to contain_class('tripleo::profile::base::securetty') }
+       it {
+         is_expected.to contain_file('/etc/securetty').with(
+           :content => ["# Managed by Puppet / TripleO Heat Templates",
+                        "# A list of TTYs, from which root can log in",
+                        "# see `man securetty` for reference",
+                        "",
+                        ""].join("\n"),
+           :owner => 'root',
+           :group => 'root',
+           :mode  => '0600')
+       }
+     end
+
+    context 'it should configure securtty' do
+      let(:params) {{
+        :step     => 1,
+        :tty_list => ['console', 'tty1', 'tty2', 'tty3', 'tty4', 'tty5', 'tty6']
+      }}
+
+      it 'should configure securetty values' do
+        is_expected.to contain_file('/etc/securetty').with(
+          :owner => 'root',
+          :group => 'root',
+          :mode  => '0600',
+          )
+          .with_content(/console/)
+          .with_content(/tty1/)
+          .with_content(/tty2/)
+          .with_content(/tty3/)
+          .with_content(/tty4/)
+          .with_content(/tty5/)
+          .with_content(/tty6/)
+      end
+    end
+  end
+
+  on_supported_os.each do |os, facts|
+    context "on #{os}" do
+      let (:facts) {
+        facts
+      }
+      it_behaves_like 'tripleo::profile::base::securetty'
+    end
+  end
+end

templates/securetty/securetty.erb

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+# Managed by Puppet / TripleO Heat Templates
+# A list of TTYs, from which root can log in
+# see `man securetty` for reference
+<%= @ttys %>