[BUG] MetalLB instructions fail on k8s 1.25+

[kevchu3]

What happened?

I followed the documentation on Deploying a TCP Load Balancer for User Workloads on my MicroShift cluster running on OpenShift 4.12. The instructions to deploy resource manifests from the metallb project do not work because PodSecurityPolicy which was previously deprecated, has now been removed from OpenShift 4.12 / Kubernetes 1.25.

What did you expect to happen?

Applying the YAML manifests to deploy the project should work.

How to reproduce it (as minimally and precisely as possible)?

1. Deploy MicroShift on OpenShift 4.12.
2. Run the instructions to apply the resource manifests from metallb project:

oc apply -f https://raw.githubusercontent.com/metallb/metallb/v0.13.4/config/manifests/metallb-native.yaml

It should fail when attempting to create objects of type PodSecurityPolicy.

Anything else we need to know?

I've already found a solution, which is to use updated manifests from that project:

oc apply -f https://raw.githubusercontent.com/metallb/metallb/v0.13.7/config/manifests/metallb-native.yaml

Afterwards, I still needed to apply the privileged scc to the controller and speaker serviceaccounts as follows:

oc adm policy add-scc-to-user privileged -z controller -n metallb-system
oc adm policy add-scc-to-user privileged -z speaker -n metallb-system

Environment

• MicroShift version (use microshift version):
  $ microshift version
  MicroShift Version: 4.12.0-0.microshift-2022-11-17-084702-untagged
  Base OCP Version: 4.12.0-0.nightly-2022-11-07-181244

• Hardware configuration:
  Intel NUC with 2 cores and 16 GB RAM

• OS (e.g: cat /etc/os-release):
  $ cat /etc/os-release
  NAME="Red Hat Enterprise Linux"
  VERSION="8.7 (Ootpa)"
  ID="rhel"
  ID_LIKE="fedora"
  VERSION_ID="8.7"
  PLATFORM_ID="platform:el8"
  PRETTY_NAME="Red Hat Enterprise Linux 8.7 (Ootpa)"
  ANSI_COLOR="0;31"
  CPE_NAME="cpe:/o:redhat:enterprise_linux:8::baseos"
  HOME_URL="https://www.redhat.com/"
  DOCUMENTATION_URL="https://access.redhat.com/documentation/red_hat_enterprise_linux/8/"
  BUG_REPORT_URL="https://bugzilla.redhat.com/"

REDHAT_BUGZILLA_PRODUCT="Red Hat Enterprise Linux 8"
REDHAT_BUGZILLA_PRODUCT_VERSION=8.7
REDHAT_SUPPORT_PRODUCT="Red Hat Enterprise Linux"
REDHAT_SUPPORT_PRODUCT_VERSION="8.7"

• Kernel (e.g. uname -a):
  $ uname -a
  Linux [hostname redacted] 4.18.0-425.10.1.el8_7.x86_64 Init #1 SMP Wed Dec 14 16:00:01 EST 2022 x86_64 x86_64 x86_64 GNU/Linux

• Others:

Relevant logs

[ggiguash]

/assign @ggiguash