Improvement in Kafka deployment script

cp "${KFK_MANIFESTS_PATH}/${KFK_ZOOKEEPER_MANIFEST}" "${TMP_MANIFESTS_FOLDER}/${KFK_ZOOKEEPER_MANIFEST}"

cp "${KFK_MANIFESTS_PATH}/${KFK_MANIFEST}" "${TMP_MANIFESTS_FOLDER}/${KFK_MANIFEST}"

echo "Apache Kafka Namespace"

echo ">>> Delete Apache Kafka Namespace"

kubectl delete namespace ${KFK_NAMESPACE} --ignore-not-found

echo ">>> Create Apache Kafka Namespace"

kubectl create namespace ${KFK_NAMESPACE}

# sleep 2

# echo "----"

echo ">>> Deplying Apache Kafka Zookeeper"

# Kafka zookeeper service should be deployed before the kafka service

kubectl --namespace ${KFK_NAMESPACE} apply -f "${TMP_MANIFESTS_FOLDER}/${KFK_ZOOKEEPER_MANIFEST}"

# kubectl get services --namespace ${KFK_NAMESPACE}

# echo "----"

KFK_ZOOKEEPER_SERVICE="zookeeper-service"    # this command may be replaced with command to get service name automatically

KFK_ZOOKEEPER_SERVICE="zookeeper-service"    # this command may be replaced with command to extract service name automatically

KFK_ZOOKEEPER_IP=$(kubectl --namespace ${KFK_NAMESPACE} get service ${KFK_ZOOKEEPER_SERVICE} -o 'jsonpath={.spec.clusterIP}')

# echo $KFK_ZOOKEEPER_IP

# echo "----"

# Kafka service should be deployed after the zookeeper service

sed -i "s/<ZOOKEEPER_INTERNAL_IP>/${KFK_ZOOKEEPER_IP}/" "${TMP_MANIFESTS_FOLDER}/$KFK_MANIFEST"

# echo "----"

echo ">>> Deploying Apache Kafka Broker"

kubectl --namespace ${KFK_NAMESPACE} apply -f "${TMP_MANIFESTS_FOLDER}/$KFK_MANIFEST"

sleep 5

kubectl --namespace ${KFK_NAMESPACE} get pods

echo "--- Kafka service deployed sucessfully ---"

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echo ">>> Verifing Apache Kafka deployment"

sleep 5

KFK_PODS_STATUS=$(kubectl --namespace ${KFK_NAMESPACE} get pods)

if echo "$KFK_PODS_STATUS" | grep -qEv 'STATUS|Running'; then

    echo "Deployment Error: $KFK_PODS_STATUS"

else

    echo "$KFK_PODS_STATUS"

fi

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