Issued:: 2021-03-16
Updated:: 2021-03-16

RHBA-2021:0753 - OpenShift Container Platform 4.6.21 bug fix update

Synopsis

OpenShift Container Platform 4.6.21 bug fix update

Type/Severity

Bug Fix Advisory None

Topic

Red Hat OpenShift Container Platform release 4.6.21 is now available with updates to packages and images that fix several bugs.

Description

Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments.

This advisory contains the container images for Red Hat OpenShift Container Platform 4.6.21. See the following advisory for the RPM packages for this release:

https://access.redhat.com/errata/RHBA-2020:0750

Space precludes documenting all of the container images in this advisory. See the following Release Notes documentation, which will be updated shortly for this release, for details about these changes:

https://docs.openshift.com/container-platform/4.6/release_notes/ocp-4-6-release-notes.html

This update fixes the following bugs among others:

Previously, a user could be denied access to pull images from other projects due to insufficient user permissions. This update removes all user interface checks for RoleBindings and shows the oc command alert to help users use the command line when pulling images from other projects. As a result, the user is shown how to enable image pulling from a different namespace and is no longer blocked from creating images from different namespaces; they can now also deploy images from their other projects. (BZ#1933727)
Previously, for all on-premise platforms, when discovering the node IP, baremetal-runtimecfg wrongly assumed the nodes were always attached to a subnet that included the VIP and looked for an address within this IP range. Consequently, nodes failed to generate configuration files with baremetal-runtimecfg. This update automatically falls back to the IP address associated with the default route, so that new compute nodes can join the cluster when deployed on separate subnets. (BZ#1932967)

You may download the oc tool and use it to inspect release image metadata as follows:

(For x86_64 architecture)

$ oc adm release info quay.io/openshift-release-dev/ocp-release:4.6.20-x86_64

The image digest is sha256:6ae80e777c206b7314732aff542be105db892bf0e114a6757cb9e34662b8f891

(For s390x architecture)

$ oc adm release info quay.io/openshift-release-dev/ocp-release:4.6.20-s390x

The image digest is sha256:d62eaf00e7abcd825012e5432b53001ed59b981e6e9f46da078dd524ef3c82a8

(For ppc64le architecture)

$ oc adm release info quay.io/openshift-release-dev/ocp-release:4.6.20-ppc64le

The image digest is sha256:d3462440defca7652d8cc50cc4b62b9336a6207270b2d3eec39d58f50491625c

All OpenShift Container Platform 4.6 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift Console or the CLI oc command. Instructions for upgrading a cluster are available at This page is not included, but the link has been rewritten to point to the nearest parent document.https://docs.openshift.com/container-platform/4.6/updating/updating-cluster-between-minor.html#understanding-upgrade-channels_updating-cluster-between-minor.

Solution

For OpenShift Container Platform 4.6 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update:

https://docs.openshift.com/container-platform/4.6/release_notes/ocp-4-6-release-notes.html

Details on how to access this content are available at This page is not included, but the link has been rewritten to point to the nearest parent document.https://docs.openshift.com/container-platform/4.6/updating/updating-cluster-cli.html.

Affected Products

Product	Version	Arch
Red Hat OpenShift Container Platform	4.6	x86_64
Red Hat OpenShift Container Platform for Power	4.6	ppc64le
Red Hat OpenShift Container Platform for IBM Z and LinuxONE	4.6	s390x

Fixes

CVEs

(none)

References

(none)

Additional information

The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.