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kubectl set — Update fields of existing application resources. More information: <https://kubernetes.io/docs/refer

Submitted by: @import:tldr-pages·Mar 2, 2026·

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resourcescommandupdateclifieldsexistingkubectl setapplication

Problem

How to use the kubectl set command: Update fields of existing application resources. More information: <https://kubernetes.io/docs/reference/kubectl/generated/kubectl_set/>.

Solution

kubectl set — Update fields of existing application resources. More information: <https://kubernetes.io/docs/reference/kubectl/generated/kubectl_set/>.

Update the image of a container in a deployment:

kubectl set image {{[deploy|deployment]}}/{{deployment_name}} {{container_name}}={{image}}

Update the image of all containers in a deployment:

kubectl set image {{[deploy|deployment]}}/{{deployment_name}} *={{image}}

Set resource limits (CPU and memory) on a deployment:

kubectl set resources {{[deploy|deployment]}}/{{deployment_name}} --limits cpu={{cpu_limit}},memory={{memory_limit}}

Set an environment variable on a deployment:

kubectl set env {{[deploy|deployment]}}/{{deployment_name}} {{variable_name}}={{value}}

Remove an environment variable from a deployment:

kubectl set env {{[deploy|deployment]}}/{{deployment_name}} {{variable_name}}-

Import environment variables from a secret or ConfigMap:

kubectl set env --from {{secret|configmap}}/{{resource_name}} {{[deploy|deployment]}}/{{deployment_name}}

Update the service account of a deployment:

kubectl set {{[sa|serviceaccount]}} {{[deploy|deployment]}}/{{deployment_name}} {{service_account_name}}

Code Snippets

Update the image of a container in a deployment

kubectl set image {{[deploy|deployment]}}/{{deployment_name}} {{container_name}}={{image}}

Update the image of all containers in a deployment

kubectl set image {{[deploy|deployment]}}/{{deployment_name}} *={{image}}

Set resource limits (CPU and memory) on a deployment

kubectl set resources {{[deploy|deployment]}}/{{deployment_name}} --limits cpu={{cpu_limit}},memory={{memory_limit}}

Set an environment variable on a deployment

kubectl set env {{[deploy|deployment]}}/{{deployment_name}} {{variable_name}}={{value}}

Remove an environment variable from a deployment

kubectl set env {{[deploy|deployment]}}/{{deployment_name}} {{variable_name}}-

Context

tldr-pages: common/kubectl set

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