Merge PR #42406 into master

Merge PR #42406 into master

* refs/pull/42406/head:
	mgr/nfs: remove unused 'realm' arg for 'nfs export create rgw'
	doc/mgr/rook: update title
	doc/mgr/nfs: reference customizing ingress
	doc/mgr/nfs: add section for manual ganesha config; reframe
	doc/mgr/nfs: document ingress in more detail
	doc/mgr/nfs: typo
	doc/mgr/nfs: add note about incomplete ingress
	qa/suites/orch/cephadm: add rgw nfs export test
	mgr/cephadm: ingress: tolerate no daemons
	mgr/nfs: add --squash option to 'nfs export create rgw ...'
	mgr/nfs: use bucket owner creds for rgw bucket export
	mgr/cephadm: use new CEPH_IMAGE_TYPES for all daemons using ceph container image
	qa/tasks/python: simple task to run python code
	doc/mgr/nfs: revisions
	mgr/nfs/export: nicer exceptions on cap update

Reviewed-by: Varsha Rao <varao@redhat.com>