Use existing secret form k9s

How to retreive postgresql_password from an existing secret created in kubernets, i don’t want to use --set server.config.persistence.default.sql.password=postgresql_password \

helm install
–repo https://go.temporal.io/helm-charts
-f values/values.postgresql.yaml
–set elasticsearch.enabled=false
–set server.config.persistence.default.sql.user=postgresql_user
–set server.config.persistence.default.sql.password=postgresql_password
–set server.config.persistence.visibility.sql.user=postgresql_user
–set server.config.persistence.visibility.sql.password=postgresql_password
–set server.config.persistence.default.sql.host=postgresql_host
–set server.config.persistence.visibility.sql.host=postgresql_host
temporaltest temporal --timeout 900s