1. Percona Operator for MongoDB is deployed.
  See if the operator Pod is running:

    kubectl get pods -l app.kubernetes.io/name=psmdb-operator --namespace {{ .Release.Namespace }}

  Check the operator logs if the Pod is not starting:

    export POD=$(kubectl get pods -l app.kubernetes.io/name=psmdb-operator --namespace {{ .Release.Namespace }} --output name)
    kubectl logs $POD --namespace={{ .Release.Namespace }}

2. Deploy the database cluster from psmdb-db chart:

    helm install my-db percona/psmdb-db --namespace={{ .Release.Namespace }}

Read more in our documentation: https://docs.percona.com/percona-operator-for-mongodb/