+ [ ! -v CONTROLLER ] && ADD_K8S_OPTS="--client" && BOOTSTRAP_NEEDED="yes" && CONTROLLER_NAME="osm-vca"
+
+ if [ -v BOOTSTRAP_NEEDED ]; then
+ CONTROLLER_PRESENT=$(juju controllers 2>/dev/null| grep ${CONTROLLER_NAME} | wc -l)
+ if [ $CONTROLLER_PRESENT -ge 1 ]; then
+ cat << EOF
+Threre is already a VCA present with the installer reserved name of "${CONTROLLER_NAME}".
+You may either explicitly use this VCA with the "--vca ${CONTROLLER_NAME}" option, or remove it
+using this command:
+
+ juju destroy-controller --release-storage --destroy-all-models -y ${CONTROLLER_NAME}
+
+Please retry the installation once this conflict has been resolved.
+EOF
+ exit 1
+ fi
+ else
+ CONTROLLER_PRESENT=$(juju controllers 2>/dev/null| grep ${CONTROLLER_NAME} | wc -l)
+ if [ $CONTROLLER_PRESENT -le 0 ]; then
+ cat << EOF
+Threre is no VCA present with the name "${CONTROLLER_NAME}". Please specify a VCA
+that exists, or remove the --vca ${CONTROLLER_NAME} option.
+
+Please retry the installation with one of the solutions applied.
+EOF
+ exit 1
+ fi
+ fi