v4.0.1

Changelog:

6107a9d Makefile: Update flavors for stable-4.0
67f0f18 Makefile: disable openSUSE 42.3 luminous build
3e75393 daemon/start_mon.sh: add mon without port value
5c4b539 variables_entrypoint.sh: improve logging
fde454d centos/daemon-base: merge DOCKERFILE_INSTALL
1a59415 daemon: create log directories for rbd target
35aad66 daemon-base: Use nfs-ganesha 2.8 for nautilus
93cfbce centos: Update ceph-iscsi repo/pkgs for nautilus
9c32e39 populate_kv.sh: create client_host directory once
bbfc863 rhel8: rebase image on ubi8
dcbeb68 fix broken symlink for centos-arm64 RADOSGW_PACKAGES override
a3f7710 dashboard: add ceph-grafana-dashboards package
391b5ea layout: rename CEPH_MGR_PACKAGE and RADOSGW_PACKAGE
77ede8f Fix monmap_command for MON_HEALTH daemon
5c117e7 daemon: ceph-rest-api only available on luminous
edf77a9 rhel8: use production content-sets
63de2aa contrib/commit-rhcs.sh: Nautilus on RHEL 8
e3a731c contrib: compose-rhcs for nautilus + RHEL 8
5b0c2c9 rhel8: drop "-rhel8" from component label
cc3a555 rhel8: rm ubi.repo
9067dd6 daemon-base: Add ceph-mgr-diskprediction-local pkg