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Anderson Gama
Anderson Gama

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Install KUBERNETES (EKS-D)

#eks #ubuntu #snap #kubernetes

Install KUBERNETES (EKS-D)

OS: UBUNTU

Install Kubectl 

sudo snap install kubectl --classic
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Install Amazon EKS Distro (EKS-D) 

sudo snap install eks --classic --edge
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eks (1.18/edge) v1.18.9 from Canonical✓ installed
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Check the status 

eks status --wait-ready
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eks is running
high-availability: no
  datastore master nodes: 127.0.0.1:19001
  datastore standby nodes: none
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Give execution permission to the current user 

sudo usermod -a -G eks $USER
sudo chown -f -R $USER ~/.kube
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Export the current EKS-D configuration information for use with Kubectl 

mkdir -p $HOME/.kube
sudo eks config > .kube/config
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Inspect the installation 

eks inspect | grep running
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  Service snap.eks.daemon-cluster-agent is running
  Service snap.eks.daemon-containerd is running
  Service snap.eks.daemon-apiserver is running
  Service snap.eks.daemon-apiserver-kicker is running
  Service snap.eks.daemon-control-plane-kicker is running
  Service snap.eks.daemon-proxy is running
  Service snap.eks.daemon-kubelet is running
  Service snap.eks.daemon-scheduler is running
  Service snap.eks.daemon-controller-manager is running
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Check the version of Containerd 

eks ctr --version
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ctr github.com/containerd/containerd v1.3.7
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Server / Client version 

eks ctr version
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Client:
  Version:  v1.3.7
  Revision: 8fba4e9a7d01810a393d5d25a3621dc101981175

Server:
  Version:  v1.3.7
  Revision: 8fba4e9a7d01810a393d5d25a3621dc101981175
  UUID: 339017b3-570e-43bd-a528-4a08123868ca
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Access Kubernetes

EKS-D comes with its own version of Kubectl to access Kubernetes. Below we will cover 2 different forms of access to view the "nodes" and "services":

Conventional

eks kubectl get nodes
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NAME           STATUS   ROLES    AGE   VERSION
myuser         Ready    <none>   33m   v1.18.9-eks-1-18-1
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eks kubectl get services
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NAME         TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)   AGE
kubernetes   ClusterIP   10.152.183.1   <none>        443/TCP   33m
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Recommended

kubectl get nodes
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NAME           STATUS   ROLES    AGE   VERSION
myuser         Ready    <none>   33m   v1.18.9-eks-1-18-1
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kubectl get services
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NAME         TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)   AGE
kubernetes   ClusterIP   10.152.183.1   <none>        443/TCP   33m
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Note: As shown, the 2 forms have the same result, but from this point on we will only use the "Recommended" with Kubectl.

Deploy a test application 

kubectl create deployment nginx --image=nginx
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deployment.apps/nginx created
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kubectl get pods
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NAME                    READY   STATUS    RESTARTS   AGE
nginx-f89759699-2w75l   1/1     Running   0          33s
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Starting and stopping EKS-D

EKS-D will continue to run until you decide to stop it. You can stop and start with the commands below:

sudo eks stop
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Stopped.
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sudo eks start
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Started.
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Basic information of your Kubernetes cluster

Server/Client version 

kubectl version --short=true
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Client Version: v1.19.4
Server Version: v1.18.9-1+c787d4d0c397b8
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Cluster information 

kubectl cluster-info
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Kubernetes master is running at https://192.168.254.100:16443
CoreDNS is running at https://192.168.254.100:16443/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy
Metrics-server is running at https://192.168.254.100:16443/api/v1/namespaces/kube-system/services/https:metrics-server:/proxy
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Configuration information 

kubectl config view
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apiVersion: v1
clusters:
- cluster:
    certificate-authority-data: DATA+OMITTED
    server: https://192.168.254.100:16443
  name: microk8s-cluster
contexts:
- context:
    cluster: microk8s-cluster
    user: admin
  name: microk8s
current-context: microk8s
kind: Config
preferences: {}
users:
- name: admin
  user:
    token: REDACTED
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Note: To view the access token, use the "--flatten=true" option.

View the nodes 

kubectl get nodes -w
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NAME           STATUS   ROLES    AGE   VERSION
myuser         Ready    <none>   33h   v1.18.9-eks-1-18-1
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Information about a particular node 

kubectl describe node myuser
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Source:

https://microk8s.io/

https://microk8s.io/docs/commands

https://snapcraft.io/eks

https://snapcraft.io/kubectl

https://ubuntu.com/blog/install-amazon-eks-distro-anywhere

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