diff --git a/Puppetfile b/Puppetfile
index 7d50617..d102a6b 100644
--- a/Puppetfile
+++ b/Puppetfile
@@ -13,6 +13,7 @@ mod 'puppetlabs-puppetdb', '7.13.0'
 mod 'puppetlabs-postgresql', '9.1.0'
 mod 'puppetlabs-firewall', '6.0.0'
 mod 'puppetlabs-accounts', '8.1.0'
+mod 'puppetlabs-mysql', '15.0.0'
 
 # puppet
 mod 'puppet-python', '7.0.0'
@@ -29,6 +30,7 @@ mod 'puppet-prometheus', '13.4.0'
 mod 'ghoneycutt-puppet', '3.3.0'
 mod 'saz-sudo', '8.0.0'
 mod 'dalen-puppetdbquery', '3.0.1'
+mod 'markt-galera', '3.1.0'
 
 mod 'bind',
   :git => 'https://git.unkin.net/unkinben/puppet-bind.git',
diff --git a/site/roles/manifests/infra/sql/galera.pp b/site/roles/manifests/infra/sql/galera.pp
new file mode 100644
index 0000000..dac21c5
--- /dev/null
+++ b/site/roles/manifests/infra/sql/galera.pp
@@ -0,0 +1,5 @@
+# a role to deploy a mariadb galera node
+class roles::infra::sql::galera {
+  include profiles::defaults
+  include profiles::base
+}