oss single cluster model for v-lab

related us: https://mirantis.jira.com/browse/PROD-15544

Change-Id: I79ccbc1153091aa708fbdcf2a0e41f6aedc9b4bb
diff --git a/classes/cluster/drivetrain-ha-oss/.env b/classes/cluster/drivetrain-ha-oss/.env
new file mode 100644
index 0000000..c5ed6e7
--- /dev/null
+++ b/classes/cluster/drivetrain-ha-oss/.env
@@ -0,0 +1,4 @@
+EXTRA_FORMULAS="java docker linux salt reclass aptly jenkins gerrit \
+        haproxy keepalived postgresql openssh ntp nginx sphinx mysql \
+        libvirt rsyslog glusterfs xtrabackup freeipa elasticsearch \
+        rundeck devops-portal"