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Useful Commands

Useful commands to help you get comfortable using Kubernetes on CoreWeave Cloud

Kubernetes is harder to pronounce than it is to use. If you've never used it before, you'll be comfortable deploying your Docker containers on CoreWeave Cloud in no time.

We've put the following command reference together to help you perform simple tasks as you get better acquainted.

Additional resources

Refer to the Kubernetes official documentation for more in-depth explanations of these commands.

Apply and edit manifests​

Example
$
kubectl apply -f [manifest.yaml] # Apply a manifest to deploy a resource or apply changes by overwriting an existing manifest

$
kubectl edit [resource_type] [resource_name/id] # Edit the manifest of a resource using a text editor

Status commands​

Example
# General syntax

$
kubectl get [resource_type]



# Deployments

$
kubectl get deployments # Shows all running Deployments

$
kubectl get deployment [deployment-name] # Shows a specific Deployment



# Services

$
kubectl get services # Shows all services in the current Namespace

$
kubectl get services --sort-by=.metadata.name # ...sorted by name

$
kubectl get services --namespace [namespace] # ...in a specific Namespace



# PVCs

$
kubectl get pvc # Show active Persistent Volume Claims (Storage Volumes)



# Virtual Servers

$
kubectl get vs



# Pods

$
kubectl get pods # Shows all Pods in the current Namespace

$
kubectl get pods -o wide # ...with more information

$
kubectl get pods --namespace [namespace] # ...in a specific Namespace



# The number of CPUs, GPUs, and memory requested by each Pod.

# Note: This assumes jq is installed.

$
kubectl get pods -o json | jq '.items[] | {name: .metadata.name, cpu: .spec.containers[].resources.requests.cpu, gpu: .spec.containers[].resources.requests."nvidia.com/gpu", memory: .spec.containers[].resources.requests.memory}'

Describe Pods and get logs​

Example
# General syntax

$
kubectl describe [resource_type] [resource_name/id]



# Pods

$
kubectl describe pods # Shows detailed information about all Pods

$
kubectl describe pod [pod_id] # ...about a specific Pod

$
kubectl describe pod [pod_id] -o yaml # ...about a specific Pod, in YAML format



# Logs

$
kubectl logs -f [pod_id] # Gets streaming logs of a pod

Delete resources​

Example
$
kubectl delete [resource_type] [resource_name/id]

$
kubectl delete pod [pod_id] # Deletes a pod, deployment will start a new one

$
kubectl delete deployment [deployment_name] # Deletes a deployment, will not restart

Scale deployments​

Example
$
kubectl scale --replicas=[number] [resource_type]/[resource_name/id]



## Scale a deployment to [number] of replicas

$
kubectl scale --replicas=[number] deployments/[deployment_name]

Interact with running pods​

Example
$
kubectl exec -it [pod_id] /bin/bash # Opens a bash shell in your pod
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