**To describe a cluster**

The following ``describe-cluster`` example describes an Amazon MSK cluster. ::

    aws kafka describe-cluster \
        --cluster-arn arn:aws:kafka:us-east-1:123456789012:cluster/demo-cluster-1/6357e0b2-0e6a-4b86-a0b4-70df934c2e31-5

Output::

    {
        "ClusterInfo": {
            "BrokerNodeGroupInfo": {
                "BrokerAZDistribution": "DEFAULT",
                "ClientSubnets": [
                    "subnet-cbfff283",
                    "subnet-6746046b"
                ],
                "InstanceType": "kafka.m5.large",
                "SecurityGroups": [
                    "sg-f839b688"
                ],
                "StorageInfo": {
                    "EbsStorageInfo": {
                        "VolumeSize": 100
                    }
                }
            },
            "ClusterArn": "arn:aws:kafka:us-east-1:123456789012:cluster/demo-cluster-1/6357e0b2-0e6a-4b86-a0b4-70df934c2e31-5",
            "ClusterName": "demo-cluster-1",
            "CreationTime": "2020-07-09T02:31:36.223000+00:00",
            "CurrentBrokerSoftwareInfo": {
                "KafkaVersion": "2.2.1"
            },
            "CurrentVersion": "K3AEGXETSR30VB",
            "EncryptionInfo": {
                "EncryptionAtRest": {
                    "DataVolumeKMSKeyId": "arn:aws:kms:us-east-1:123456789012:key/a7ca56d5-0768-4b64-a670-339a9fbef81c"
                },
                "EncryptionInTransit": {
                    "ClientBroker": "TLS_PLAINTEXT",
                    "InCluster": true
                }
            },
            "EnhancedMonitoring": "DEFAULT",
            "OpenMonitoring": {
                "Prometheus": {
                    "JmxExporter": {
                        "EnabledInBroker": false
                    },
                    "NodeExporter": {
                        "EnabledInBroker": false
                    }
                }
            },
            "NumberOfBrokerNodes": 2,
            "State": "ACTIVE",
            "Tags": {},
            "ZookeeperConnectString": "z-2.demo-cluster-1.xuy0sb.c5.kafka.us-east-1.amazonaws.com:2181,z-1.demo-cluster-1.xuy0sb.c5.kafka.us-east-1.amazonaws.com:2181,z-3.demo-cluster-1.xuy0sb.c5.kafka.us-east-1.amazonaws.com:2181"
        }
    }

For more information, see `Listing Amazon MSK Clusters <https://docs.aws.amazon.com/msk/latest/developerguide/msk-list-clusters.html>`__ in the *Amazon Managed Streaming for Apache Kafka Developer Guide*.