🎉 Kubernetes Shell Script

Kubernetes is an open-source container orchestration platform that automates the deployment, scaling, and management of containerized applications. It provides a robust framework for running distributed systems resiliently, ensuring efficient resource utilization and high availability.

✅ Requirements

• Kubectl

🧩 Kubectl Command

Service	Command (get)	Command (create)	Command (delete)
Pods	kubectl get pods	kubectl create -f <pod.yaml>	kubectl delete pod <pod_name>
Deployments	kubectl get deployments	kubectl create -f <deployment.yaml>	kubectl delete deployment <deployment_name>
ReplicationSets	kubectl get rs	kubectl apply -f <rs.yaml>	kubectl delete rs <rs_name>
Services	kubectl get svc	kubectl create -f <service.yaml>	kubectl delete service <service_name>
ConfigMaps	kubectl get configmaps	kubectl create configmap <name> --from-file=<file>	kubectl delete configmap <name>
Secrets	kubectl get secrets	kubectl create secret generic <name> --from-file=<file>	kubectl delete secret <name>
Namespaces	kubectl get ns	kubectl create ns <namespace>	kubectl delete ns <namespace>
PersistentVolumes	kubectl get pv	kubectl create -f <pv.yaml>	kubectl delete pv <pv_name>
PersistentVolumeClaims	kubectl get pvc	kubectl create -f <pvc.yaml>	kubectl delete pvc <pvc_name>
Nodes	kubectl get nodes	N/A	N/A
Ingress	kubectl get ingress	kubectl create -f <ingress.yaml>	kubectl delete ingress <ingress_name>
Events	kubectl get events	N/A	N/A

🧩 Helm Command

Service	Command (get)	Command (create)	Command (delete)
Chart	helm get	helm create
Chart	helm get all
Chart	helm get hooks
Chart	helm get manifest
Chart	helm get notes
Chart	helm get values
		helm package
		helm repo add	helm repo remove
		helm repo update
Release		helm install	helm uninstall
Release			helm delete
Status	helm status
History	helm history
Lint		helm lint
Upgrade		helm upgrade
Rollback			helm rollback
Test		helm test
Dependency		helm dependency update
Dependency		helm dependency build
Plugin	helm plugin list	helm plugin install	helm plugin uninstall
Repo	helm repo list

⛑️ Helm Directory Structure

└── 📁nginx
    └── .helmignore
    └── Chart.yaml
    └── 📁charts
    └── nginx-0.1.0.tgz
    └── 📁templates
        └── deployment.yaml
        └── hpa.yaml
        └── ingress.yaml
        └── NOTES.txt
        └── service.yaml
        └── serviceaccount.yaml
        └── 📁tests
            └── test-connection.yaml
        └── _helpers.tpl
    └── values.yaml

Filename	Description
.helmignore	Specifies patterns to ignore when packaging Helm charts.
Chart.yaml	Contains metadata about the Helm chart, such as its name, version, description, and dependencies.
nginx-0.1.0.tgz	An example of a packaged chart (a tarball), typically generated after running helm package on the chart.
deployment.yaml	A Kubernetes Deployment manifest template defining how your nginx deployment should be configured.
hpa.yaml	A Horizontal Pod Autoscaler (HPA) manifest template, used to automatically scale the number of replicas based on CPU utilization.
ingress.yaml	An Ingress manifest template defining how external traffic should reach your nginx service.
NOTES.txt	Contains optional usage notes or instructions that are displayed after the chart is installed.
service.yaml	A Kubernetes Service manifest template defining how your nginx service should be exposed within the Kubernetes cluster.
serviceaccount.yaml	A Kubernetes ServiceAccount manifest template defining the service account used by your nginx deployment.
test-connection.yaml	An example test manifest to verify the connection to the nginx service.
_helpers.tpl	Contains helper templates that can be included in other template files to avoid duplication of code.
values.yaml	Contains default configuration values for your Helm chart. Users can override these values during installation.