Merge PR #42073 into master

* refs/pull/42073/head:
	doc/mgr/nfs: fix 'export apply', pool name
	PendingReleaseNotes: document workaround for NFS storage change
	qa/tasks/mgr/test_orchestrator_cli: fix test
	qa/suites/orch/cephadm/mgr-nfs-upgrade: add test for nfs migration
	mgr/cephadm: migrate nfs grace file
	mgr/nfs: migrate pre-pacific nfs.ganesha-foo clusters to nfs.foo
	doc/cephfs/fs-nfs-exports: document new export apply capabilities
	qa/tasks/cephfs/test_nfs: define NFS_POOL_NAME
	mgr/nfs: use NFS_POOL_NAME in test_nfs.py
	mgr/nfs: test export apply on JSON list
	mgr/nfs: add test for ganesha conf apply/import
	qa/tasks/cephfs/test_nfs: retry mount a few times
	mgr/cephadm: migrate all legacy nfs exports to new .nfs pool
	mgr/nfs: adjust cephfs export caps if necessary
	python-common: don't accept pool/ns for NFSServiceSpec
	mgr/orchestrator: drop rados_config_location ServiceDescription property
	mgr/cephadm: move rados_config_location() out of NFSServiceSpec
	mgr/nfs: change nfs pool to .nfs
	mgr/nfs/export: accept a JSON or ganesha EXPORT config
	mgr/nfs: allow 'nfs export apply' to take a list of exports
	python-common: remove pool + namespace from NFSServiceSpec
	mgr/nfs: used fixed pool + ns
	mgr/rook: used fixed pool + ns
	mgr/dashboard: use fixed pool + ns
	mgr/cephadm: always use fixed pool and namespace
	mgr/nfs: adjust test to match pool name
	mgr/nfs: always create ganesha pool with well-defined name

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

diff --cc src/pybind/mgr/cephadm/tests/test_cephadm.py
Simple merge