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Kubernetes kubectl reference
Viewing / Accessing resourceskubectl get --all-namespaces {resource_type}
| Get resource from all namespaces | kubectl describe {resource_type}
| Describes the given resources | kubectl rolling-update {pod_name}
| Performs a rolling update for a given pod | kubectl scale --replicas=3 {resource_type}/{resource_name}
| Scale given resource | kubectl proxy
| Proxy the api server API to your local machine on port 8001 | kubectl port-forward {pod_name} {local_port}:{remote_port}
| Forward the pod port to your local port |
Creating /editing objectskubectl apply -f ./my-manifest.yaml
| Apply a configuration to a resource by filename or stdin. Also overrides the existing configuration. | kubectl create -f ./my-manifest.yaml
| Create resource(s) | kubectl create -f ./dir
| Create resource(s) in all manifest files in dir | | Create from url | kubectl run nginx --image=nginx
| Start a single instance of nginx | kubectl replace --force -f ./pod.json
| Force replace, delete and then re-create the resource. Will cause a service outage. | kubectl edit svc/docker-registry
| Edit the service named docker-registry |
| | Resource typesconfigmaps
| ConfigMaps allow you to decouple configuration artifacts from image content to keep containerized applications portable. | daemonsets
| A DaemonSet ensures that all (or some) Nodes run a copy of a Pod. | deployments
| A Deployment controller provides declarative updates for Pods and ReplicaSets. | ingresses
| An Ingress is a collection of rules that allow inbound connections to reach the cluster services. | jobs
| A job creates one or more pods and ensures that a specified number of them successfully terminate. | namespaces
| Kubernetes supports multiple virtual clusters backed by the same physical cluster. These virtual clusters are called namespaces. | nodes
| Nodes are the physical cluster nodes. | persistentvolumeclaims
| A PersistentVolumeClaim (PVC) is a request for storage by a user. | persistentvolumes
| A PersistentVolume (PV) is a piece of storage in the cluster that has been provisioned by an administrator. | pods
| A Pod is the basic building block of Kubernetes–the smallest and simplest unit in the Kubernetes object model that you create or deploy. | replicasets
| A ReplicaSet ensures that a specified number of pod replicas are running at any one time. | cronjob
| A Cron Job manages time based Jobs. | secrets
| Objects of type secret are intended to hold sensitive information. | services
| A Kubernetes Service is an abstraction which defines a logical set of Pods and a policy by which to access them. |
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