diff --git a/manifests/repo/redhat/redhat.pp b/manifests/repo/redhat/redhat.pp
index 80cd694..baf2f9f 100644
--- a/manifests/repo/redhat/redhat.pp
+++ b/manifests/repo/redhat/redhat.pp
@@ -54,6 +54,10 @@
 #   'priority' value in yumrepo will be effective.
 #   Defaults to true
 #
+# [*centos_mirror_url*]
+#   (optional) URL of CentOS mirror.
+#   Defaults to 'http://mirror.centos.org'
+#
 class openstack_extras::repo::redhat::redhat(
   $release           = $::openstack_extras::repo::redhat::params::release,
   $manage_rdo        = true,
@@ -65,6 +69,7 @@ class openstack_extras::repo::redhat::redhat(
   $purge_unmanaged   = false,
   $package_require   = false,
   $manage_priorities = true,
+  $centos_mirror_url = 'http://mirror.centos.org',
 ) inherits openstack_extras::repo::redhat::params {
 
   validate_string($release)
@@ -93,7 +98,7 @@ class openstack_extras::repo::redhat::redhat(
 
     $rdo_hash = {
       'rdo-release' => {
-        'baseurl'  => "http://mirror.centos.org/centos/7/cloud/\$basearch/openstack-${release}/",
+        'baseurl'  => "${centos_mirror_url}/centos/7/cloud/\$basearch/openstack-${release}/",
         'descr'    => "OpenStack ${release_cap} Repository",
         'priority' => $::openstack_extras::repo::redhat::params::rdo_priority,
         'gpgkey'   => 'file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-Cloud',
diff --git a/releasenotes/notes/add_centos_mirror-079eb2b38940f583.yaml b/releasenotes/notes/add_centos_mirror-079eb2b38940f583.yaml
new file mode 100644
index 0000000..8f8bd30
--- /dev/null
+++ b/releasenotes/notes/add_centos_mirror-079eb2b38940f583.yaml
@@ -0,0 +1,3 @@
+---
+features:
+  - Allow to change CentOS mirror URL with a new parameter, centos_mirror_url.
diff --git a/spec/classes/openstack_extras_repo_redhat_redhat_spec.rb b/spec/classes/openstack_extras_repo_redhat_redhat_spec.rb
index 17b04ad..2f4ebd1 100644
--- a/spec/classes/openstack_extras_repo_redhat_redhat_spec.rb
+++ b/spec/classes/openstack_extras_repo_redhat_redhat_spec.rb
@@ -163,12 +163,13 @@ describe 'openstack_extras::repo::redhat::redhat' do
       let :params do
         default_params.merge!({ :repo_defaults => {
                                    'proxy' => 'http://my.proxy.com:8000'
-                                }
+                                },
+                                :centos_mirror_url => 'http://mirror.dfw.rax.openstack.org',
                               })
       end
 
       it { is_expected.to contain_yumrepo('rdo-release').with(
-        :baseurl    => "http://mirror.centos.org/centos/7/cloud/\$basearch/openstack-mitaka/",
+        :baseurl    => "http://mirror.dfw.rax.openstack.org/centos/7/cloud/\$basearch/openstack-mitaka/",
         :descr      => "OpenStack Mitaka Repository",
         :gpgkey     => "file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-Cloud",
         :proxy     => "http://my.proxy.com:8000"