Kubectl and EKSCTL - Story

• eksctl creates Cluster using Cloudformation template
• Cluster is mapped to EC2-Role and it here where we get visibility
• Each Cluster is mapped to  "Context" in ~/.kube/config File which is a config file used by kubectl
• kubectl knows what its target vms are or context is.
• Each Context/Target Nodes can be shared between many different Project by using "namespaces"

Kubectl Context Switch - Kubernetes

eksctl creates Cluster using Cloudformation template

Cluster is mapped to EC2-Role and it here where we get visibility

Each Cluster is mapped to  "Context" in ~/.kube/config File which is a config file used by kubectl

kubectl knows what its target vms are or context is.

Each Context/Target Nodes can be shared between many different Project by using "namespaces"

~\.kube\config

kubectl config get-contexts

kubectl config current-context

kubectl config use-context <context-name>

https://www.shellhacks.com/kubectl-switch-context-kubernetes/

https://www.shellhacks.com/kubectl-get-pods-list-all-pods-kubernetes/

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Kubectl - Multiple Eksctl contexts - Switch - How ??

https://stackoverflow.com/a/43661208/2413870

https://stackoverflow.com/questions/43643463/how-to-switch-kubectl-clusters-between-gcloud-and-minikube

You can switch from local (minikube) to gcloud and back with:

kubectl config use-context CONTEXT_NAME




to list all contexts:

kubectl config get-contexts




You can create different enviroments for local and gcloud and put it in separate yaml files.

https://kubernetes.io/docs/tasks/access-application-cluster/configure-access-multiple-clusters/

Exam : Certification Questions : Certification : Examprep :Exam

https://www.testpreptraining.com/

https://www.whizlabs.com/cart/ 

AWS : Step Functions : ADSL

https://www.youtube.com/watch?v=zCIpWFYDJ8s&list=PL9nWRykSBSFgQrO66TmO1vHFP6yuPF5G-

https://www.youtube.com/watch?v=s0XFX3WHg0w

Step Function : 

Serverless Orchestration Service

ADSL

GraphQL : express-graphql : graphql : apollo-server : GraphQLPlayground : GraphiQL

https://www.youtube.com/watch?v=ZQL7tL2S0oQ&feature=youtu.be

https://github.com/WebDevSimplified/Learn-GraphQL/blob/master/server.js

https://www.apollographql.com/docs/apollo-server/getting-started/

Node + Typescript : Typescript + Node

https://stackoverflow.com/questions/36999461/how-to-install-only-devdependencies-using-npm

npm init -y

npm i -D typescript

npx tsc example.ts

node example.js

https://www.youtube.com/watch?v=1UcLoOD1lRM

https://www.youtube.com/watch?v=WBPrJSw7yQA