Update README.md

README.md

@@ -140,4 +140,15 @@ now we are able to connect to localhost:5432
 ```console
 $ kubectl -n dspace-dev create -f postgresql-service.yaml
 service "dspace-postgresql" created
+```
+```console
+$ kubectl -n dspace-dev exec -it servlet env | grep POSTGRESQL
+DSPACE_POSTGRESQL_SERVICE_PORT_POSTGRESQL=5432
+DSPACE_POSTGRESQL_PORT_5432_TCP_ADDR=10.13.0.173
+DSPACE_POSTGRESQL_SERVICE_HOST=10.13.0.173
+DSPACE_POSTGRESQL_PORT_5432_TCP_PROTO=tcp
+DSPACE_POSTGRESQL_PORT_5432_TCP_PORT=5432
+DSPACE_POSTGRESQL_SERVICE_PORT=5432
+DSPACE_POSTGRESQL_PORT=tcp://10.13.0.173:5432
+DSPACE_POSTGRESQL_PORT_5432_TCP=tcp://10.13.0.173:5432
 ```
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