kubernetes objects

nodes: worker node

pods: smallest deployable entity of k8s. wrapper around container. every pod has its own uniq ip address.

service: to expose application inside / outside of the cluster.

• clusterip: to expose application inside the cluster. used for inside communication only.

• NodePort: expose application outside the cluster using Node Port.can access application by NodeIp:NodePort

• LoadBalancer: export application outside the cluster on loadbalancer service.

namespace: to devide the k8s cluster. segregate the resource.

replicationcontroller: responsible for creating replicas of the pod.used equality base selector.

replicaset: responsible for creating replicas of pod.used set based selector multiple lable selector is possible. multiple lable selector is possible.

deployment: deployment is responsible for implementing deployment stratagies on replicaset

statefulset: responsible for managing the replicas of the stateful pod.

Daemonset: responsile for managing the replicas of the pods on every node

ConfigMap: to store variables

secret: to store confidantial variables

HAP: (Horizontal Pod Autoscaling)

minimum , maximum , desired capacity, condition,matrix (cpu utilization)

ingress: it is kubernetes object which holds ingress rules

helm version

tar -xzvf helm

sudo mv linux-amd64/helm /usr/local/bin/helm

helm install my-release oci://ghcr.io/nginxinc/charts/nginx-ingress --version 1.2.1

kubectl edit ingress