Replace configuring of LDAP service with Keycloak service

[DebakelOrakel]

No description provided.

[haasad]

Are we going to tidy up all old services, firewall rules etc as part of your current migration work?

Then we could also remove the following sections:

openshift4-docs/docs/modules/ROOT/pages/how-tos/cloudscale/decommission.adoc

Lines 112 to 113 in 4af1ffa

	# delete ldap secret
	vault kv delete clusters/kv/${TENANT_ID}/${CLUSTER_ID}/vshn-ldap

openshift4-docs/docs/modules/ROOT/pages/how-tos/cloudscale/decommission.adoc

Lines 154 to 160 in 4af1ffa

	. Remove IPs from LDAP allowlist
	+
	Edit https://git.vshn.net/vshn-puppet/vshn_hieradata/-/blob/master/corp/prod/ldap.yaml
	+
	- Search cluster IPs and remove those lines and any comments related.
	+
	- Create a Merge Request and invite a colleague for a review/approve/merge

openshift4-docs/docs/modules/ROOT/pages/how-tos/exoscale/decommission.adoc

Line 127 in 4af1ffa

. Remove cluster IPs from LDAP allowlist, if applicable

Also:

openshift4-docs/docs/modules/ROOT/partials/architecture/networking-external.adoc

Line 15 in 4af1ffa

* VSHN LDAP at `ldaps://ldap.vshn.net:636`

[DebakelOrakel]

Are we going to tidy up all old services, firewall rules etc as part of your current migration work?

Then we could also remove the following sections:

openshift4-docs/docs/modules/ROOT/pages/how-tos/cloudscale/decommission.adoc

Lines 112 to 113 in 4af1ffa

	# delete ldap secret
	vault kv delete clusters/kv/${TENANT_ID}/${CLUSTER_ID}/vshn-ldap

openshift4-docs/docs/modules/ROOT/pages/how-tos/cloudscale/decommission.adoc

Lines 154 to 160 in 4af1ffa

	. Remove IPs from LDAP allowlist
	+
	Edit https://git.vshn.net/vshn-puppet/vshn_hieradata/-/blob/master/corp/prod/ldap.yaml
	+
	- Search cluster IPs and remove those lines and any comments related.
	+
	- Create a Merge Request and invite a colleague for a review/approve/merge

openshift4-docs/docs/modules/ROOT/pages/how-tos/exoscale/decommission.adoc

Line 127 in 4af1ffa

. Remove cluster IPs from LDAP allowlist, if applicable

Also:

openshift4-docs/docs/modules/ROOT/partials/architecture/networking-external.adoc

Line 15 in 4af1ffa

* VSHN LDAP at `ldaps://ldap.vshn.net:636`

This was pretty much all done a while back.