if ! helm -n osm status alertmanager 2> /dev/null ; then
# if it does not exist, install
helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
if ! helm -n osm status alertmanager 2> /dev/null ; then
# if it does not exist, install
helm repo add prometheus-community https://prometheus-community.github.io/helm-charts