aws_eks

Install or update the AWS CLI

To update your current installation of AWS CLI, download a new installer each time you update to overwrite previous versions. Follow these steps from the command line to install the AWS CLI on Linux.

curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip"

unzip awscliv2.zip

sudo ./aws/install

To install or update eksctl on Linux

• Download and extract the latest release of eksctl with the following command.

curl --silent --location "https://github.com/weaveworks/eksctl/releases/latest/download/eksctl_$(uname -s)_amd64.tar.gz" | tar xz -C /tmp

• Move the extracted binary to /usr/local/bin.

sudo mv /tmp/eksctl /usr/local/bin

• Test that your installation was successful with the following command.

eksctl version

Install kubectl

If you are on Ubuntu or another Linux distribution that supports the snap package manager, kubectl is available as a snap application.

snap install kubectl --classic
kubectl version --client

install Helm (Debian/Ubuntu)

Members of the Helm community have contributed a Helm package for Apt. This package is generally up to date.

curl https://baltocdn.com/helm/signing.asc | gpg --dearmor | sudo tee /usr/share/keyrings/helm.gpg > /dev/null

sudo apt-get install apt-transport-https --yes

echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/helm.gpg] https://baltocdn.com/helm/stable/debian/ all main" | sudo tee /etc/apt/sources.list.d/helm-stable-debian.list

sudo apt-get update

sudo apt-get install helm

Example aws eks

apiVersion: eksctl.io/v1alpha5
kind: ClusterConfig

metadata:
  name: testDeepchainTracker
  region: ap-south-1

nodeGroups:
  - name: ng-1
    instanceType: t3.micro
    desiredCapacity: 2
    volumeSize: 15
    ssh:
      allow: true
      

Some command

create_cluster:
  eksctl create cluster -f cluster.yaml

delete_cluster:
  eksctl delete cluster -f cluster.yaml

describe_cluster:
  eksctl utils describe-stacks --region=ap-south-1 --cluster=testDeepchainTracker

aws_identity:
  aws sts get-caller-identity

set_context:
  eksctl utils write-kubeconfig --cluster=testDeepchainTracker --set-kubeconfig-context=true

Example of loadbalancer application

# ---
# apiVersion: v1
# kind: Namespace
# metadata:
#   name: internal-tracker
---
apiVersion: v1
kind: Service
metadata:
  name: tracker
  # namespace: internal-tracker
spec:
  selector:
    app: tracker
  ports:
    - port: 80
      targetPort: 3000
 #     nodePort: 30005
  type: LoadBalancer
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: tracker
  # namespace: internal-tracker

spec:
  replicas: 2
  selector:
    matchLabels:
      app: tracker
  template:
    metadata:
      labels:
        app: tracker
    spec:
      containers:
        - name: tracker
          image: shihab24/testapp:latest
#          restartPolicy: Never
          ports:
            - containerPort: 3000
          env:
            - name: TZ
              value: Asia/Dhaka
          imagePullPolicy: Always
#       restartPolicy: Never
      # imagePullSecrets:
      # - name: deepchain
---
apiVersion: autoscaling/v2
kind: HorizontalPodAutoscaler
metadata:
  name: tracker
  # namespace: internal-tracker

spec:
  scaleTargetRef:
    apiVersion: apps/v1
    kind: Deployment
    name:  tracker
  minReplicas: 1
  maxReplicas: 2
  metrics:
  - type: Resource
    resource:
      name: cpu
      target:
        type: Utilization
        averageUtilization: 75
  - type: Resource
    resource:
      name: memory
      target:
        type: AverageValue
        averageValue: 400Mi

• create this example name file name app.yml

nano app.yml #create and edit file

kubectl apply -f app.yml  # run this application 
kubectl get svc # get all services
kubectl get pods # get all pods
kubectl get deployment # get all deployment
kubectl get hpa # get autoscalling
kubectl get all # get all deployment , autoscalling, services, pods