BZ2051452: Add L2 subnet info to vSphere, RHV, and Openstack prerequisites

[cherraz]

Added a reusable snippet across some vSphere, RHV, and Openstack installer IPI

FIXES BZ: https://bugzilla.redhat.com/show_bug.cgi?id=2051452

PREVIEW:
Openstack

• https://deploy-preview-43599--osdocs.netlify.app/openshift-enterprise/latest/installing/installing_openstack/installing-openstack-installer-custom.html#installing-openstack-installer-custom#prerequisites
• https://deploy-preview-43599--osdocs.netlify.app/openshift-enterprise/latest/installing/installing_openstack/installing-openstack-installer-kuryr.html#prerequisites
• https://deploy-preview-43599--osdocs.netlify.app/openshift-enterprise/latest/installing/installing_openstack/installing-openstack-installer-restricted.html#prerequisites

RHV

• https://deploy-preview-43599--osdocs.netlify.app/openshift-enterprise/latest/installing/installing_rhv/installing-rhv-default.html#prerequisites
• https://deploy-preview-43599--osdocs.netlify.app/openshift-enterprise/latest/installing/installing_rhv/installing-rhv-customizations.html#prerequisites

vSphere

• https://deploy-preview-43599--osdocs.netlify.app/openshift-enterprise/latest/installing/installing_vsphere/installing-vsphere-installer-provisioned.html#prerequisites
• https://deploy-preview-43599--osdocs.netlify.app/openshift-enterprise/latest/installing/installing_vsphere/installing-vsphere-installer-provisioned-customizations.html#installing-vsphere-installer-provisioned-customizations#prerequisites
• https://deploy-preview-43599--osdocs.netlify.app/openshift-enterprise/latest/installing/installing_vsphere/installing-vsphere-installer-provisioned-network-customizations.html#prerequisites
• https://deploy-preview-43599--osdocs.netlify.app/openshift-enterprise/latest/installing/installing_vsphere/installing-restricted-networks-installer-provisioned-vsphere.html#prerequisites_installing-restricted-networks-installer-provisioned-vsphere

vSphere cloud

• https://deploy-preview-43599--osdocs.netlify.app/openshift-enterprise/latest/installing/installing_vmc/installing-vmc.html#vsphere-prerequisites
• https://deploy-preview-43599--osdocs.netlify.app/openshift-enterprise/latest/installing/installing_vmc/installing-vmc-customizations.html#vsphere-prerequisites
• https://deploy-preview-43599--osdocs.netlify.app/openshift-enterprise/latest/installing/installing_vmc/installing-vmc-network-customizations.html#vsphere-prerequisites
• https://deploy-preview-43599--osdocs.netlify.app/openshift-enterprise/latest/installing/installing_vmc/installing-restricted-networks-vmc.html#vsphere-prerequisites_installing-restricted-networks-vmc

VERSIONS: 4.10, 4.9, 4.8, 4.7, 4.6 (it doesn't apply to main)

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[cherraz]

Hi @cybertron, made changes to the PR as you adviced. Could you please take a look at this new one and see everything looks fine? It's basically one file with a sentence and a link. The other files are the IPI sections including this sentence. Thank you!

[cybertron]

Sorry, I thought I had already looked at this. A couple of thoughts inline.

[kelbrown20]

Looks great! LGTM

[stevsmit]

/lgtm

[cybertron]

/lgtm

Thanks!

[cherraz]

@zhaozhanqi Hi! When you can, please let me know if you approve this PR so that we can merge it. Thanks!

[jinyunma]

the update looks good to me for vsphere part.

I checked that all IPI installation on VMC docs (under "Installing on VMC") are not applied the update. Those docs also need to be updated.

Another question is that can we add KCS link directly in official doc?

[cherraz]

the update looks good to me for vsphere part.

I checked that all IPI installation on VMC docs (under "Installing on VMC") are not applied the update. Those docs also need to be updated.

Another question is that can we add KCS link directly in official doc?

Hi! Thank you for checking this -- I'll add the note to those sections as well.

About the link, yeah, this is not the first link to the knowledge base in the docset, so that should be ok :)

[openshift-ci]

New changes are detected. LGTM label has been removed.

[jinyunma]

@cherraz thanks for updating. The changes look good to me now for vsphere part.

[cherraz]

Waiting for RHV and Openstack QEs to comment or give lgtm.

[mandre]

The note looks good to me, however shouldn't we include it in UPI installation method as well? It also seems to me it's missing from a couple of OpenStack doc (SR-IOV and OVS-DPDK).

[cybertron]

This isn't relevant for UPI because it doesn't run keepalived. It also isn't necessary going forward because we switched everyone to unicast keepalived so it won't conflict.

[openshift-bot]

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/lifecycle stale

[openshift-bot]

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/lifecycle rotten
/remove-lifecycle stale

[openshift-bot]

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[openshift-ci]

@openshift-bot: Closed this PR.

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