Login module control flag not specified in JAAS config

I am trying to replicate below git hub, however getting error, not sure what I am missing

cp-all-in-one/cp-all-in-one-cloud at 7.5.0-post · confluentinc/cp-all-in-one (github.com)

Note: - I have added below env variables (not Using schema registry)

export BOOTSTRAP_SERVERS=
export SASL_JAAS_CONFIG=
export BASIC_AUTH_CREDENTIALS_SOURCE=USER_INFO

Error while running kafka-ready.
org.apache.kafka.common.KafkaException: Failed to create new KafkaAdminClient
at org.apache.kafka.clients.admin.KafkaAdminClient.createInternal(KafkaAdminClient.java:551)
at org.apache.kafka.clients.admin.Admin.create(Admin.java:144)
at org.apache.kafka.clients.admin.AdminClient.create(AdminClient.java:49)
at io.confluent.admin.utils.ClusterStatus.isKafkaReady(ClusterStatus.java:136)
at io.confluent.admin.utils.cli.KafkaReadyCommand.main(KafkaReadyCommand.java:149)
Caused by: java.lang.IllegalArgumentException: Login module control flag not specified in JAAS config
** at** org.apache.kafka.common.security.JaasConfig.parseAppConfigurationEntry(JaasConfig.java:110)
at org.apache.kafka.common.security.JaasConfig.(JaasConfig.java:63)
at org.apache.kafka.common.security.JaasContext.load(JaasContext.java:93)
at org.apache.kafka.common.security.JaasContext.loadClientContext(JaasContext.java:87)
at org.apache.kafka.common.network.ChannelBuilders.create(ChannelBuilders.java:167)
at org.apache.kafka.common.network.ChannelBuilders.clientChannelBuilder(ChannelBuilders.java:81)
at org.apache.kafka.clients.ClientUtils.createChannelBuilder(ClientUtils.java:105)
at org.apache.kafka.clients.admin.KafkaAdminClient.createInternal(KafkaAdminClient.java:522)
… 4 more

did you use ccloud-stack as described in the README to get all the Confluent Cloud stuff ready?