Changelog for v1-20-eks-7

This changelog highlights the changes for v1-20-eks-7.

Base Image

Security updates to Amazon Linux 2.

Patches

Patches Added

• 0012-PATCH-kubeadm-CoreDNS-permissions-for-endpointslices.patch
• Fixes error with CoreDNS. See EKS-D Issue #545.
• Patch is from a commit in upstream Kubernetes PR #102466
• 0013-EKS-CHERRYPICK-Pass-additional-flags-to-subpath-moun.patch
• Reduces the chance of flakes related to subpath mount in some cases.
• Cherry-pick of upstream Kubernetes PR #104253, which should be part of the Kubernetes v1.23 release.
• Kubernetes v1.20.11 also cherry-picked (PR #104348) this change.

Contributor Shout Out

Special thanks to jonathan-conder-sm for their contributions to this release, specifically their thoroughly-investigated issue and subsequent PR that added a patch and fixed the bug.