AWS Naming Cluster

Name Your Cluster

In AWS it is critical that the name is unique, as no two clusters in the same AWS account can have the same name.

The cluster name may only contain the following characters: a-z, 0-9, ., and -. Cluster creation will fail if the name has capital letters. See Kubernetes for more naming information.

Follow these steps:

Give your cluster a unique name suitable for your environment.
Set the environment variable:

CODE

export CLUSTER_NAME=<aws-example>

Cluster Name List in AWS

To get a list of names used in your AWS account, use the aws CLI. After downloading, use the following command:

CODE

aws ec2 describe-vpcs --filter "Name=tag-key,Values=kubernetes.io/cluster" --query "Vpcs[*].Tags[?Key=='kubernetes.io/cluster'].Value | sort(@[*][0])"

CODE

    "alex-aws-cluster-afe98",
    "sam-aws-cluster-8if9q"

(Optional) To create a cluster name that is unique, use the following command:
CODE
```
export CLUSTER_NAME=aws-example-$(LC_CTYPE=C tr -dc 'a-z0-9' </dev/urandom | fold -w 5 | head -n1)
echo $CLUSTER_NAME
```
CODE
```
aws-example-pf4a3
```
This will create a unique name every time you run it, so use it with forethought.

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AWS Customizing CAPI Clusters