Getting Started

1. deployment folder

• manifest yaml :: spring_app_v2
• 10_podDisruptionBudget.yaml
• 09_HPA.yaml vs Cluster Autoscaler
• deployment : deployment-1
• metric (single / mutli) :
  • cpu and memory
  • custom metric
  • high traffic
• behaviour : policy - up /down
  • stabilization window
  • no/% of pod up/down, every x seconds
• must see: https://chat.deepseek.com/a/chat/s/00db1638-b5bc-4a70-a585-4a487e210a63
  • scenarios:
  • configure HPA for a stateful application
  • mplement a "warm pool" for sudden traffic spike
• 08_external_secret.md
• annotation:
• 07_annotation-ingress.md
• 07_annotation-Pod.md
• 07_annotation-sa.md

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2. Commnds

aws ec2 describe-subnets --filters "Name=vpc-id,Values=vpc-id-from-output" --region us-west-2
aws ec2 describe-vpcs --vpc-ids vpc-id-from-output --region us-west-2
aws eks list-fargate-profiles --cluster-name your-cluster-name --region us-west-2
aws ec2 describe-vpc-endpoints --filters "Name=vpc-id,Values=vpc-id-from-output" --region us-west-2
aws ec2 describe-route-tables --filters "Name=vpc-id,Values=vpc-id-from-output" --region us-west-2
aws ec2 describe-security-groups --filters "Name=vpc-id,Values=vpc-id-from-output" --region us-west-2


aws eks describe-cluster  --name maps-outbound-us-west-2-dev2-eks-fargate-cluster --region us-west-2 --query "cluster.identity.oidc.issuer"
aws iam create-open-id-connect-provider --url https://oidc.eks.us-west-2.amazonaws.com/id/867FAFA03F6706024B5895223D5D3451 --client-id-list sts.amazonaws.co
aws eks get-token  --cluster-name maps-outbound-us-west-2-dev2-eks-fargate-cluster --region us-west-2
aws eks update-kubeconfig --name maps-outbound-us-west-2-dev2-eks-fargate-cluster --region us-west-2

aws eks describe-update --name maps-outbound-us-west-2-dev2-eks-fargate-cluster  --update-id 388626d9-068d-3325-b988-f15ecd94ee51 --region us-west-2
# got update it from trf logs

kubectl get configmap aws-logging -n kube-system

3. Comparison :: ECS vs EKS

• 02_Containers_ECS.md vs 02_Kubernetes_EKS.md

• Clusters

  • logical grouping of tasks or services.
  • Equivalent to Cluster in Kubernetes

• Tasks === pod

  • A single running copy of a container defined by a task definition.

• Task Definitions == pod

  • Blueprints for your application that specify the container images, CPU, memory, and other settings.

• Services === Replica Set

  • Allows you to run and maintain a specified number of instances of a task definition simultaneously.

• Container Instances == work Nodes

  • Amazon EC2 instances registered to your cluster and used to run tasks.
  • Equivalent in Kubernetes: Nodes

• Elastic Load Balancing (ELB) === Service (specifically, LoadBalancer type)

  • Distributes incoming application traffic across multiple targets.

• Auto Scaling === Horizontal Pod Autoscaler

  • Adjusts the desired count of tasks in a service automatically based on criteria.

• ECS Agent === Kubelet

  • Software that runs on each container instance and communicates with ECS to start and stop tasks.

• ECS Fargate

  • A serverless compute engine for containers that eliminates the need to manage EC2 instances.

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3. Okta (ignore)

• https://dev-16206041-admin.okta.com/
• https://dev-16206041.okta.com/
• https://dev-16206041-admin.okta.com/admin/app/oidc_client/client/0oal3d72smuSHBhwF5d7#tab-general
  • client_id : 0oal3d72smuSHBhwF5d7
  • issuer URI :
  • https://dev-16206041.okta.com/oauth2/default (default)
  • https://dev-16206041.okta.com/oauth2/ausl3dg4kkpyvEBft5d7