Karpenter 0.3.0 Modifications

charts/karpenter/Chart.yaml

@@ -1,7 +1,7 @@
 apiVersion: v2
 name: ot-karpenter
-version: 0.2.0
+version: 0.3.0
 dependencies:
   - name: karpenter
     version: 1.1.1 
     repository: oci://public.ecr.aws/karpenter

charts/karpenter/README.md

@@ -7,11 +7,11 @@ To install Karpenter, use the following commands:
 
 ```shell
 $ helm repo add ot-helm https://ot-container-kit.github.io/helm-charts/
-$ helm install karpenter ot-helm/karpenter --namespace <namespace> --dependency-update --include-crds
+$ helm install karpenter ot-helm/karpenter --namespace <namespace> --dependency-update --create-namespace
 
 ```
-# Adds the ot-helm repository to Helm, which contains the Karpenter Helm chart.
-# Installs the Karpenter chart from the ot-helm repository.
+Adds the ot-helm repository to Helm, which contains the Karpenter Helm chart.
+Installs the Karpenter chart from the ot-helm repository.
 
 
 
@@ -22,7 +22,7 @@ $ helm upgrade karpenter ot-helm/karpenter --install --namespace <namespace> --c
 
 ```
 
-# Upgrades an existing Karpenter release or installs it if it doesn't exist.
+Upgrades an existing Karpenter release or installs it if it doesn't exist.
 
 
 To uninstall the chart:
@@ -31,8 +31,8 @@ To uninstall the chart:
 $ helm delete karpenter --namespace <namespace>
 ```
 
-# Deletes the Karpenter release from the specified namespace.
-# Replace <namespace> with the namespace where Karpenter is installed.
+Deletes the Karpenter release from the specified namespace.
+Replace <namespace> with the namespace where Karpenter is installed.
 
 
 
@@ -72,7 +72,6 @@ $ helm delete karpenter --namespace <namespace>
 
 ### Notes:
 
-- After deployment of helm chart, in order for the nodepool to work, ec2nodeclass should be installed as well.
 - Refer to Example Folder for a example values.yaml file 
 - Karpenter automatically creates and manages NodePools as part of the installation process.
 - Make sure to configure the IAM roles required by Karpenter for it to interact with EC2 instances and manage resources along with all prerequisites.

charts/karpenter/templates/ec2nodeclass.yaml

@@ -0,0 +1,33 @@
+{{- range .Values.ec2NodeClasses }}
+apiVersion: karpenter.k8s.aws/v1
+kind: EC2NodeClass
+metadata:
+  name: {{ .name }}
+spec:
+  amiFamily: {{ .amiFamily | default "AL2" }}
+  role: {{ .role }}
+  {{- if .detailedMonitoring }}
+  detailedMonitoring: {{ .detailedMonitoring }}
+{{- end }}
+  subnetSelectorTerms:
+    - tags:
+        karpenter.sh/discovery: "{{ $.Values.clusterName }}"
+  securityGroupSelectorTerms:
+    - tags:
+        karpenter.sh/discovery: "{{ $.Values.clusterName }}"
+  amiSelectorTerms:
+    - id: "{{ .amiSelector.arm }}"
+    - id: "{{ .amiSelector.amd }}"
+{{- if .amiSelector.gpu }}
+    - id: "{{ .amiSelector.gpu }}"
+{{- end }}
+{{- if .amiSelector.name }}
+    - name: "{{ .amiSelector.name }}"
+{{- end }}
+{{- if .tags }}
+  tags:
+{{- range $key, $value := .tags }}
+    {{ $key }}: "{{ $value }}"
+{{- end }}
+{{- end }}
+{{- end }}

charts/karpenter/values.yaml

@@ -7,6 +7,7 @@ awsAccountId: 3333  # AWS account ID where the resources will be provisioned
 karpenter:
   settings:
     clusterName: ""  # Cluster name for the Karpenter controller to identify and manage nodes in this cluster
+    #interruptionQueue: ""  # Name of SQS queue for handling EC2 instance interruptions
 
   serviceAccount:
     annotations:
@@ -22,6 +23,23 @@ karpenter:
   #       cpu: "1"  # CPU resource limit for the Karpenter controller (maximum resources Karpenter can consume)
   #       memory: "1Gi"  # Memory resource limit for the Karpenter controller
 
+# EC2NodeClasses define the EC2 instance classes that Karpenter can use
+ec2NodeClasses:
+  - name: default
+    amiFamily: AL2              # Amazon Linux 2 AMI family
+    role:                       #"KarpenterNodeRole-my-eks-cluster" # Name of karpenter Node Role ( NOT THE ARN )
+    amiSelector:
+      # To get the AMI ID, run the commands below in the AWS CLI and replace the AMI ID in the values.yaml file
+      arm:                      # ARM_AMI_ID="$(aws ssm get-parameter --name /aws/service/eks/optimized-ami/${K8S_VERSION}/amazon-linux-2-arm64/recommended/image_id --query Parameter.Value --output text)"
+      amd:                      # AMD_AMI_ID="$(aws ssm get-parameter --name /aws/service/eks/optimized-ami/${K8S_VERSION}/amazon-linux-2/recommended/image_id --query Parameter.Value --output text)"
+      #gpu: ami-gpu-id          # GPU_AMI_ID="$(aws ssm get-parameter --name /aws/service/eks/optimized-ami/${K8S_VERSION}/amazon-linux-2-gpu/recommended/image_id --query Parameter.Value --output text)"
+      #name:                    #amazon-eks-node-1.27-*  # Optional: EKS Node AMI Name
+    # tags:                     # Optional, propagates tags to underlying EC2 resources
+    #   environment: production
+    #   team: "engineering"
+    #   owner: "[email protected]"
+    #detailedMonitoring: true    # Enable detailed monitoring for the EC2 instance
+
 # NodePools define groups of nodes with specific requirements
 nodePools:
   - name: default  # Name of the node pool, preset here is set to default nodepool
@@ -42,8 +60,12 @@ nodePools:
         operator: In  # Only nodes with the specified instance category will be selected
         values:
           - "t"  # These can be customized as per need 
-          - "m"  
-          - "r"  
+          - "m"
+          - "r"
+      # - key: karpenter.k8s.aws/instance-family         # Uncomment to define the instance family (e.g., t3, m5, r5)
+      #   operator: In
+      #   values:
+      #     - "t3a"
       - key: karpenter.k8s.aws/instance-generation  # Instance generation requirement
         operator: Gt  # Greater than the specified value
         values: