.Network configuration
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|Parameter label (name) |Default value|Description|Availability Zones
(`AvailabilityZones`)|`**__Requires input__**`|Choose two or three Availability Zones to use for the VPC subnets.|Number of Availability Zones
(`NumberOfAZs`)|`**__Requires input__**`|Choose the number of Availability Zones to use in the VPC. This must match the number of AZs selected in the *Availability Zones* parameter.|VPC CIDR
(`VPCCIDR`)|`10.0.0.0/16`|CIDR Block for the VPC|Private subnet 1 CIDR
(`PrivateSubnet1CIDR`)|`10.0.0.0/19`|CIDR block for private subnet 1, located in Availability Zone 1.|Private subnet 2 CIDR
(`PrivateSubnet2CIDR`)|`10.0.32.0/19`|CIDR block for private subnet 2, located in Availability Zone 2.|Private subnet 3 CIDR
(`PrivateSubnet3CIDR`)|`10.0.64.0/19`|CIDR block for private subnet 3, located in Availability Zone 2.|Public subnet 1 CIDR
(`PublicSubnet1CIDR`)|`10.0.128.0/20`|CIDR Block for public subnet 1, located in Availability Zone 1.|Public subnet 2 CIDR
(`PublicSubnet2CIDR`)|`10.0.144.0/20`|CIDR block for public subnet 2, located in Availability Zone 2.|Public subnet 3 CIDR
(`PublicSubnet3CIDR`)|`10.0.160.0/20`|CIDR Block for public subnet 3, located in Availability Zone 3.|Allowed bastion external access CIDR
(`RemoteAccessCIDR`)|`**__Requires input__**`|Allowed CIDR block for external SSH access to the bastion hosts.
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.Security configuration
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|Parameter label (name) |Default value|Description|Key pair name
(`KeyPairName`)|`**__Requires input__**`|Public/private key pairs to connect to your instance after deployment.
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.Amazon EC2 Linux bastion host configuration
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|Parameter label (name) |Default value|Description|Bastion host AMI operating system
(`BastionAMIOS`)|`Amazon-Linux2-HVM`|The Linux distribution for the AMI to be used for the bastion host instances.|Bastion host instance type
(`BastionInstanceType`)|`t2.micro`|Amazon EC2 instance type for the second bastion host instance.|Number of bastion hosts
(`NumBastionHosts`)|`1`|Enter the number of bastion hosts to create.
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.Apache RocketMQ cluster configuration
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|Parameter label (name) |Default value|Description|Number of Apache RocketMQ NameServer cluster nodes
(`NameServerClusterCount`)|`2`|Number of Apache RocketMQ NameServer nodes (1–3).|Number of Apache RocketMQ Broker cluster nodes
(`BrokerClusterCount`)|`3`|Number of replica set members (1 or 3).|IOPS
(`Iops`)|`100`|IOPS of io1 EBS volume. Not applicable for EBS volume types gp2 and gp3.|RocketMQ version
(`RocketMQVersion`)|`4.7.1`|Apache RocketMQ version.|NameServer node instance type
(`NameServerInstanceType`)|`m5.large`|Amazon EC2 instance type for Apache RocketMQ NameServer nodes.|Broker node instance type
(`BrokerNodeInstanceType`)|`m5.xlarge`|Amazon EC2 instance type for Apache RocketMQ Broker nodes.|Apache RocketMQ flush disk type
(`FlushDiskType`)|`ASYNC_FLUSH`|Apache RocketMQ flush disk type (ASYNC_FLUSH or SYNC_FLUSH).|Volume size
(`VolumeSize`)|`400`|Size of attached EBS volume, in GBs.|Volume type
(`VolumeType`)|`gp3`|Type of attached EBS volume (io1, gp2, or gp3).
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.AWS Quick Start Configuration
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|Parameter label (name) |Default value|Description|Quick Start S3 bucket name
(`QSS3BucketName`)|`aws-quickstart`|Name of the S3 bucket for your copy of the Quick Start assets. Keep the default name unless you are customizing the template. Changing the name updates code references to point to a new Quick Start location. This name can include numbers, lowercase letters, uppercase letters, and hyphens, but do not start or end with a hyphen (-). See https://aws-quickstart.github.io/option1.html.|Quick Start S3 key prefix
(`QSS3KeyPrefix`)|`quickstart-apache-rocketmq/`|S3 key prefix that is used to simulate a directory for your copy of the Quick Start assets. Keep the default prefix unless you are customizing the template. Changing this prefix updates code references to point to a new Quick Start location. This prefix can include numbers, lowercase letters, uppercase letters, hyphens (-), and forward slashes (/). End with a forward slash. See https://docs.aws.amazon.com/AmazonS3/latest/dev/UsingMetadata.html and https://aws-quickstart.github.io/option1.html.|Quick Start S3 bucket Region
(`QSS3BucketRegion`)|`us-east-1`|AWS Region where the Quick Start S3 bucket (QSS3BucketName) is hosted. Keep the default Region unless you are customizing the template. Changing this Region updates code references to point to a new Quick Start location. When using your own bucket, specify the Region. See https://aws-quickstart.github.io/option1.html.
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