ubuntu@ip-172-31-27-4:~$ sudo helm install --name pgstg stable/postgresql
NAME:   pgstg
LAST DEPLOYED: Sat Apr 27 21:51:58 2019
NAMESPACE: default
STATUS: DEPLOYED
RESOURCES:
==> v1/Secret
NAME              TYPE    DATA  AGE
pgstg-postgresql  Opaque  1     0s
==> v1/Service
NAME                       TYPE       CLUSTER-IP     EXTERNAL-IP  PORT(S)   AGE
pgstg-postgresql-headless  ClusterIP  None           <none>       5432/TCP  0s
pgstg-postgresql           ClusterIP  10.43.163.107  <none>       5432/TCP  0s
==> v1beta2/StatefulSet
NAME              DESIRED  CURRENT  AGE
pgstg-postgresql  1        1        0s
==> v1/Pod(related)
NAME                READY  STATUS   RESTARTS  AGE
pgstg-postgresql-0  0/1    Pending  0         0s


NOTES:
** Please be patient while the chart is being deployed **
PostgreSQL can be accessed via port 5432 on the following DNS name from within your cluster:
    pgstg-postgresql.default.svc.cluster.local - Read/Write connection
To get the password for "postgres" run:
    export POSTGRES_PASSWORD=$(kubectl get secret --namespace default pgstg-postgresql -o jsonpath="{.data.postgresql-password}" | base64 --decode)
To connect to your database run the following command:
    kubectl run pgstg-postgresql-client --rm --tty -i --restart='Never' --namespace default --image docker.io/bitnami/postgresql:10.7.0 --env="PGPASSWORD=$POSTGRES_PASSWORD" --command -- psql --host pgstg-postgresql -U postgres


To connect to your database from outside the cluster execute the following commands:
    kubectl port-forward --namespace default svc/pgstg-postgresql 5432:5432 &
    PGPASSWORD="$POSTGRES_PASSWORD" psql --host 127.0.0.1 -U postgres