Debug School: mayankPal

Services in K8S

mayankPal — Mon, 25 Sep 2023 07:33:08 +0000

Q: What is k8 service?
A: Its an abstraction over pods, which helps in managing sets of pods using selector labels and using only active pods.

Q: Types of services?
A: ClusertIP, NodePort and NodeBalancer

Q: Commands used to create a svc ?
A:
kubectl create svc service_name --tcp=cluster_port:pod_port
kubectl create svc nodePort service_name --
tcp=cluster_port:pod_port
kubectl create svc loadbalancer service_name --tcp=cluster_port:pod_port

Assignment#2 – Day 2

mayankPal — Fri, 22 Sep 2023 11:40:51 +0000

Q: What is Namespaces? Explain with Image
A: Logical group to segregate few k8s resources based on namespace name.

Q: What is Pod? Explain with Image
A: Logical unit which contains 1 or more containers in it.

Q: What is ReplicaSets? Explain with Image
A: Abstraction over pods to create multiple instances of pods.

Q: What is Deployment? Explain with Image
A: It helps to create or modify instances of the pods that hold a containerized application. Deployments can help to efficiently scale the number of replica pods, enable the rollout of updated code in a controlled manner, or roll back to an earlier deployment version if necessary

Mayank k8s notes

mayankPal — Thu, 21 Sep 2023 09:02:49 +0000

What is Kubernetes?
A: Orchestration tool for containers

Why do we need it?
A: To orchestrate containers.

How it works?
A: Works on master & worker nodes architecture using pod as basic unit of work.

What are the components of Master?
A: kubeapi server, etcd, kube-scheduler, kube-controller

What are the components of Worker?
A: kubelet, kube-proxy, kubectl
What are the components of Worker?