Ensure directory exists for certificates for haproxy

We used to rely on a standard directory for the certificates and keys
that are requested by certmonger. However, given the approach we plan to
take for containers that's described in the blueprint, we need to use
service-specific directories for the certs/keys, since we plan to
bind-mount these into the containers, and we don't want to bind mount
any keys/certs from other services.

Thus, we start by creating this directories if they don't exist in the
filesystem and adding the proper selinux labels.

bp tls-via-certmonger-containers

Change-Id: Iba3adb9464a755e67c6f87d1233b3affa8be565a

manifests/certmonger/haproxy.pp

@@ -84,6 +84,7 @@ define tripleo::certmonger::haproxy (
       postsave_cmd => $postsave_cmd,
       principal    => $principal,
       wait         => true,
+      tag          => 'haproxy-cert',
       require      => Class['::certmonger'],
     }
     concat { $service_pem :
@@ -91,12 +92,14 @@ define tripleo::certmonger::haproxy (
       mode    => '0640',
       owner   => 'haproxy',
       group   => 'haproxy',
+      tag     => 'haproxy-cert',
       require => Package[$::haproxy::params::package_name],
     }
     concat::fragment { "${title}-cert-fragment":
       target  => $service_pem,
       source  => $service_certificate,
       order   => '01',
+      tag     => 'haproxy-cert',
       require => Certmonger_certificate["${title}-cert"],
     }
 
@@ -106,6 +109,7 @@ define tripleo::certmonger::haproxy (
         target  => $service_pem,
         source  => $ca_pem,
         order   => '10',
+        tag     => 'haproxy-cert',
         require => Class['tripleo::certmonger::ca::local'],
       }
     }
@@ -114,6 +118,7 @@ define tripleo::certmonger::haproxy (
       target  => $service_pem,
       source  => $service_key,
       order   => 20,
+      tag     => 'haproxy-cert',
       require => Certmonger_certificate["${title}-cert"],
     }
 }

manifests/certmonger/haproxy_dirs.pp

@@ -0,0 +1,55 @@
+# Copyright 2017 Red Hat, Inc.
+#
+# Licensed under the haproxy 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.haproxy.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::certmonger::haproxy_dirs
+#
+# Creates the necessary directories for haproxy's certificates and keys in the
+# assigned locations if specified. It also assigns the correct SELinux tags.
+#
+# === Parameters:
+#
+# [*certificate_dir*]
+#   (Optional) Directory where haproxy's certificates will be stored. If left
+#   unspecified, it won't be created.
+#   Defaults to undef
+#
+# [*key_dir*]
+#   (Optional) Directory where haproxy's keys will be stored.
+#   Defaults to undef
+#
+class tripleo::certmonger::haproxy_dirs(
+  $certificate_dir = undef,
+  $key_dir         = undef,
+){
+
+  if $certificate_dir {
+    file { $certificate_dir :
+      ensure  => 'directory',
+      selrole => 'object_r',
+      seltype => 'cert_t',
+      seluser => 'system_u',
+    }
+    File[$certificate_dir] ~> Certmonger_certificate<| tag == 'haproxy-cert' |>
+  }
+
+  if $key_dir {
+    file { $key_dir :
+      ensure  => 'directory',
+      selrole => 'object_r',
+      seltype => 'cert_t',
+      seluser => 'system_u',
+    }
+    File[$key_dir] ~> Certmonger_certificate<| tag == 'haproxy-cert' |>
+  }
+}

manifests/profile/base/certmonger_user.pp

@@ -98,6 +98,7 @@ class tripleo::profile::base::certmonger_user (
     ensure_resources('tripleo::certmonger::libvirt', $libvirt_certificates_specs)
   }
   unless empty($haproxy_certificates_specs) {
+    include ::tripleo::certmonger::haproxy_dirs
     ensure_resources('tripleo::certmonger::haproxy', $haproxy_certificates_specs)
     # The haproxy fronends (or listen resources) depend on the certificate
     # existing and need to be refreshed if it changed.