Add service type load balancer in external kubernetes

Change-Id: Iab47337fdd14541aa979218e061799f11fc33d29
Signed-off-by: David Garcia <david.garcia@canonical.com>
diff --git a/installers/charmed_install.sh b/installers/charmed_install.sh
index dad9f48..eb809d1 100755
--- a/installers/charmed_install.sh
+++ b/installers/charmed_install.sh
@@ -44,7 +44,7 @@
 
     if [ -v KUBECFG ]; then
         cat $KUBECFG | juju add-k8s $K8S_CLOUD_NAME $ADD_K8S_OPTS
-        [ -v BOOTSTRAP_NEEDED ] && juju bootstrap $K8S_CLOUD_NAME $CONTROLLER_NAME
+        [ -v BOOTSTRAP_NEEDED ] && juju bootstrap $K8S_CLOUD_NAME $CONTROLLER_NAME --config controller-service-type=loadbalancer
     else
         sg microk8s -c "echo ${DEFAULT_IP}-${DEFAULT_IP} | microk8s.enable metallb"
         sg microk8s -c "microk8s.enable storage dns"