One Subnet and Multiple EKS Cluster

[aishwary05]

Hi Team,

I am working on a project where I have only one subnet and multiple EKS clusters. And in the subnet, I'm updating the below tag. 

aws ec2 create-tags \ --tags "Key=karpenter.sh/discovery,Value=${CLUSTER_NAME}" \ --resources $SUBNETS          And whatever ${CLUSTER_NAME} is present in the tag, Karpenter will also work fine. So how can my Karpenter work for every cluster without changing tags every time.? 

Please get back to me for more information

[aishwary05]

Hello Team Can someone please advise me on this?

[binnythomas-corsearch]

Can some one please update @lamdor @javier

[binnythomas-corsearch]

just use different tags.

[aishwary05]

just use different tags.

Hi @binnythomas-corsearch, Thanks for the reply. But in tags, Key=karpenter.sh/discovery should be unique. and we cannot duplicate this.

Example: Below Example will not work aws ec2 create-tags \ --tags "Key=karpenter.sh/discovery,Value=${CLUSTER_NAME-1}" \ --resources $SUBNETS aws ec2 create-tags \ --tags "Key=karpenter.sh/discovery,Value=${CLUSTER_NAME-2}" \ --resources $SUBNETS

[siddharthdeshmukh]

We had similar setup and we updated the subnet tags to Key=karpener.sh/private-subnet,Value='true' and updated the subnetSelectorTerms to use this tag.

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