Enable TLS in the internal network for Barbican API

 This optionally enables TLS for Barbican API in the internal network.
 If internal TLS is enabled, each node that is serving the Barbican API
 service will use certmonger to request its certificate.

 bp tls-via-certmonger

Change-Id: I1c1d3dab9bba7bec6296a55747e9ade242c47bd9

2 files changed, 56 insertions, 4 deletions

diff --git a/manifests/haproxy.pp b/manifests/haproxy.pp
index 5b69edd..951a6fb 100644
--- a/manifests/haproxy.pp
+++ b/manifests/haproxy.pp
@@ -972,7 +972,8 @@ class tripleo::haproxy (
       ip_addresses      => hiera('barbican_api_node_ips', $controller_hosts_real),
       server_names      => hiera('aodh_api_node_names', $controller_hosts_names_real),
       public_ssl_port   => $ports[barbican_api_ssl_port],
-      service_network   => $barbican_network
+      service_network   => $barbican_network,
+      member_options    => union($haproxy_member_options, $internal_tls_member_options),
     }
   }
 
diff --git a/manifests/profile/base/barbican/api.pp b/manifests/profile/base/barbican/api.pp
index 470e649..b464317 100644
--- a/manifests/profile/base/barbican/api.pp
+++ b/manifests/profile/base/barbican/api.pp
@@ -18,18 +18,51 @@
 #
 # === Parameters
 #
+# [*barbican_network*]
+#   (Optional) The network name where the barbican endpoint is listening on.
+#   This is set by t-h-t.
+#   Defaults to hiera('barbican_api_network', undef)
+#
 # [*bootstrap_node*]
 #   (Optional) The hostname of the node responsible for bootstrapping tasks
 #   Defaults to hiera('bootstrap_nodeid')
 #
+# [*certificates_specs*]
+#   (Optional) The specifications to give to certmonger for the certificate(s)
+#   it will create.
+#   Example with hiera:
+#     apache_certificates_specs:
+#       httpd-internal_api:
+#         hostname: <overcloud controller fqdn>
+#         service_certificate: <service certificate path>
+#         service_key: <service key path>
+#         principal: "haproxy/<overcloud controller fqdn>"
+#   Defaults to hiera('apache_certificate_specs', {}).
+#
+# [*enable_internal_tls*]
+#   (Optional) Whether TLS in the internal network is enabled or not.
+#   Defaults to hiera('enable_internal_tls', false)
+#
+# [*generate_service_certificates*]
+#   (Optional) Whether or not certmonger will generate certificates for
+#   HAProxy. This could be as many as specified by the $certificates_specs
+#   variable.
+#   Note that this doesn't configure the certificates in haproxy, it merely
+#   creates the certificates.
+#   Defaults to hiera('generate_service_certificate', false).
+#
 # [*step*]
 #   (Optional) The current step in deployment. See tripleo-heat-templates
 #   for more details.
 #   Defaults to hiera('step')
 #
 class tripleo::profile::base::barbican::api (
-  $bootstrap_node = hiera('bootstrap_nodeid', undef),
-  $step           = hiera('step'),
+  $barbican_network              = hiera('barbican_api_network', undef),
+  $bootstrap_node                = hiera('bootstrap_nodeid', undef),
+  $certificates_specs            = hiera('apache_certificates_specs', {}),
+  $enable_internal_tls           = hiera('enable_internal_tls', false),
+  $generate_service_certificates = hiera('generate_service_certificates', false),
+  $step                          = hiera('step'),
 ) {
   if $::hostname == downcase($bootstrap_node) {
     $sync_db = true
@@ -37,6 +70,21 @@ class tripleo::profile::base::barbican::api (
     $sync_db = false
   }
 
+  if $enable_internal_tls {
+    if $generate_service_certificates {
+      ensure_resources('tripleo::certmonger::httpd', $certificates_specs)
+    }
+
+    if !$barbican_network {
+      fail('barbican_api_network is not set in the hieradata.')
+    }
+    $tls_certfile = $certificates_specs["httpd-${barbican_network}"]['service_certificate']
+    $tls_keyfile = $certificates_specs["httpd-${barbican_network}"]['service_key']
+  } else {
+    $tls_certfile = undef
+    $tls_keyfile = undef
+  }
+
   include ::tripleo::profile::base::barbican
 
   if $step >= 3 and $sync_db {
@@ -51,6 +99,9 @@ class tripleo::profile::base::barbican::api (
     include ::barbican::api::logging
     include ::barbican::keystone::notification
     include ::barbican::quota
-    include ::barbican::wsgi::apache
+    class { '::barbican::wsgi::apache':
+      ssl_cert => $tls_certfile,
+      ssl_key  => $tls_keyfile,
+    }
   }
 }