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Helm Overrides

This doc contains various customizations that are supported within your Helm overrides file for your TFE deployment.

Scaling TFE Pods

To manage the number of pods running within your TFE deployment, set the value of the replicaCount key accordingly.

replicaCount: 3

Service (type LoadBalancer)

Internal

By default, the module_generated_helm_overrides.yaml contains a configuration with a load balancing scheme of internal.

service:
  annotations:
    service.beta.kubernetes.io/aws-load-balancer-type: "nlb-ip"
    service.beta.kubernetes.io/aws-load-balancer-backend-protocol: "tcp"
    service.beta.kubernetes.io/aws-load-balancer-scheme: "internal" 
    service.beta.kubernetes.io/aws-load-balancer-subnets: "<list, of, lb_subnet_ids>"
    service.beta.kubernetes.io/aws-load-balancer-security-groups: "<lb-security-group-id>"
  type: LoadBalancer
  port: 443

External

If you want to configure an internet-facing (external) load balancer, the set the service.beta.kubernetes.io/aws-load-balancer-scheme annotation accordingly:

service:
  annotations:
    service.beta.kubernetes.io/aws-load-balancer-type: "nlb-ip"
    service.beta.kubernetes.io/aws-load-balancer-backend-protocol: "tcp"
    service.beta.kubernetes.io/aws-load-balancer-scheme: "internet-facing"
    service.beta.kubernetes.io/aws-load-balancer-subnets: "<list, of, lb_subnet_ids>"
    service.beta.kubernetes.io/aws-load-balancer-security-groups: "<lb-security-group-id>"
  type: LoadBalancer
  port: 443

Custom agents

By default, the TFE Helm chart creates a separate namespace for agents, which are responsible for actually executing the Terraform runs within your TFE system. If you would like to customize the agents configuration, you can use the agentWorkerPodTemplate.

Example:

agentWorkerPodTemplate:
  spec:
    nodeSelector:
        eks.amazonaws.com/nodegroup: <tfe-eks-private-nodes-agents>
    containers:
      - name: tfc-agent
        image: <namespace>/<custom-tfc-agent>:<1.0>
        resources:
          requests:
            memory: 750Mi