ClusterResourceOverride

ose-clusterresourceoverride-container-v4.17.0-202509280649.p2.g5c1609c.assembly.stream.el9

v4.17.0-202509280649.p2.g5c1609c.assembly.stream.el9

latest

v4.17

bf03b27af62710608a9561b43c2d3efa2c1c099ddce493233a4451cf1e12416f

v4.17.0

Overview

Description

# ClusterResourceOverride Admission Webhook for OpenShift ## Introduction Scheduling is based on resources requested, while quota and hard limits refer to resource limits, which can be set higher than requested resources. The difference between request and limit determines the level of overcommit; for instance, if a container is given a memory request of 1Gi and a memory limit of 2Gi, it is scheduled based on the 1Gi request being available on the node, but could use up to 2Gi; so it is 200% overcommitted. If OpenShift Container Platform administrators would like to control the level of overcommit and manage container density on nodes, ClusterResourceOverride Admission Webhook can be configured to override the ratio between request and limit set on developer containers. In conjunction with a per-project LimitRange specifying limits and defaults, this adjusts the container limit and request to achieve the desired level of overcommit.

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Using registry tokens

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Manifest List DigestCopy to Clipboard

Image DigestCopy to Clipboard

Use the following instructions to get images from a Red Hat container registry using registry service account tokens. You will need to create a registry service account to use prior to completing any of the following tasks.

Using OpenShift secrets

First, you will need to add a reference to the appropriate secret and repository to your Kubernetes pod configuration via an imagePullSecrets field.

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Then, use the following from the command line or from the OpenShift Dashboard GUI interface.

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Using podman login

Use the following command(s) from a system with podman installed

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Using docker login

Use the following command(s) from a system with docker service installed and running

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RegistryCopy to Clipboard

RepositoryCopy to Clipboard

Manifest List DigestCopy to Clipboard

Image DigestCopy to Clipboard

Use the following instructions to get images from a Red Hat container registry using your Red Hat login.

Using OpenShift

For best practices, it is recommended to use registry tokens when pulling content for OpenShift deployments.

Using podman login

Use the following command(s) from a system with podman installed

Copy to Clipboard

Using docker login

Use the following command(s) from a system with docker service installed and running

Copy to Clipboard

Get the source

RegistryCopy to Clipboard

RepositoryCopy to Clipboard

Manifest List DigestCopy to Clipboard

Image DigestCopy to Clipboard

Getting source containers

Source code is available for all Red Hat UBI-based images in the form of downloadable containers. Here are a few things you should know about Red Hat source containers.

Although they are packaged as containers, source containers cannot be run. So instead of using podman pull to get them to your system, use the skopeo command.
Source containers are named based on the binary containers they represent. So, for example, to get the source container for a particular standard RHEL UBI 8 container (registry.access.redhat.com/ubi8/ubi8.1-397) you simply append -source to get the source code container for that image (registry.access.redhat.com/ubi8/ubi8.1-397-source).
The skopeo command is recommended for getting source containers. With skopeo, you copy a source container to a directory on your local system for you to examine.
Once a source container is copied to a local directory, you can use a combination of tar,gzip, and rpm commands to work with that content.

Step one

Use skopeo to copy the source image to a local directory

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Step two

Inspect the image

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Step three

Untar the contents

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Step four

Begin examining and using the content.

Description

Getting source containers

Source code is available for all Red Hat UBI-based images in the form of downloadable containers. Here are a few things you should know about Red Hat source containers.

Although they are packaged as containers, source containers cannot be run. So instead of using podman pull to get them to your system, use the skopeo command.

Source containers are named based on the binary containers they represent. So, for example, to get the source container for a particular standard RHEL UBI 8 container (registry.access.redhat.com/ubi8/ubi8.1-397) you simply append -source to get the source code container for that image (registry.access.redhat.com/ubi8/ubi8.1-397-source).

The skopeo command is recommended for getting source containers. With skopeo, you copy a source container to a directory on your local system for you to examine.

Once a source container is copied to a local directory, you can use a combination of tar,gzip, and rpm commands to work with that content.

Description

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Digest

Using OpenShift secrets

Using podman login

Using docker login

Using OpenShift

Using podman login

Using docker login

Getting source containers

Step one

Step two

Step three

Step four

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ClusterResourceOverride

Description

Published

Release category

Digest

Using OpenShift secrets

Using podman login

Using docker login

Using OpenShift

Using podman login

Using docker login

Getting source containers

Step one

Step two

Step three

Step four