updated Kafka deployment script.

echo "Apache Kafka"

echo ">>> Checking if Apache Kafka is deployed ... "

if [ "$KFK_REDEPLOY" == "YES" ]; then

if [ "$KFK_REDEPLOY" = "YES" ]; then

    echo ">>> Redeploying kafka namespace"

    kafka_deploy

elif kubectl get --namespace ${KFK_NAMESPACE} deployments.apps &> /dev/null; then

elif kubectl get namespace "${KFK_NAMESPACE}" &> /dev/null; then

    echo ">>> Apache Kafka already present; skipping step." 

else

    echo ">>> Kafka namespace doesn't exists. Deploying kafka namespace"

    kafka_deploy

fi

echo