All NFS Manila NFS shares are unmounted from instances

Issue

• NFS shares were created from ceph storage , mounted using ganesha and used in cluster setup. All of them are unmounted and not getting mounted.

• ceph-nfs-pacemaker containers displays the following startup error:

[root@overcloud-controller-0 heat-admin]# docker logs -f ceph-nfs-pacemaker
2019-07-04 11:31:09  /entrypoint.sh: static: does not generate config
2019-07-04 11:31:09  /entrypoint.sh: SUCCESS
exec: PID 29102: spawning /usr/bin/ganesha.nfsd  -F -L STDOUT 
exec: Waiting 29102 to quit
04/07/2019 11:31:09 : epoch 5d1de37d : overcloud-controller-0 : ganesha.nfsd-29102[main] main :MAIN :EVENT :ganesha.nfsd Starting: Ganesha Version 2.7.1
04/07/2019 11:31:10 : epoch 5d1de37d : overcloud-controller-0 : ganesha.nfsd-29102[main] cu_rados_url_fetch :CONFIG :EVENT :cu_rados_url_fetch: Failed reading manila_data/gan Unknown error -2
04/07/2019 11:31:10 : epoch 5d1de37d : overcloud-controller-0 : ganesha.nfsd-29102[main] ganesha_yyerror :CONFIG :CRIT :Config file (rados://manila_data/ganesha-export-index:13) error: syntax error
04/07/2019 11:31:10 : epoch 5d1de37d : overcloud-controller-0 : ganesha.nfsd-29102[main] main :NFS STARTUP :CRIT :Error (token scan, parser rule) while parsing (/etc/ganesha/ganesha.conf)
04/07/2019 11:31:10 : epoch 5d1de37d : overcloud-controller-0 : ganesha.nfsd-29102[main] config_errs_to_log :CONFIG :CRIT :Config File (rados://manila_data/ganesha-export-index:13): new url (rados://manila_data/gan) open error (Unknown error -2), ignored
04/07/2019 11:31:10 : epoch 5d1de37d : overcloud-controller-0 : ganesha.nfsd-29102[main] config_errs_to_log :CONFIG :CRIT :Config File (rados://manila_data/ganesha-export-index:13): Unexpected character (!)
04/07/2019 11:31:10 : epoch 5d1de37d : overcloud-controller-0 : ganesha.nfsd-29102[main] config_errs_to_log :CONFIG :CRIT :Config File (/etc/ganesha/ganesha.conf:0): Configuration syntax errors found
04/07/2019 11:31:10 : epoch 5d1de37d : overcloud-controller-0 : ganesha.nfsd-29102[main] main :NFS STARTUP :FATAL :Fatal errors.  Server exiting...
teardown: managing teardown after SIGCHLD
teardown: Waiting PID 29102 to terminate 
teardown: Process 29102 is terminated
teardown: Bye Bye, container will die with return code -1
teardown: if you don't want me to die and have access to a shell to debug this situation, next time run me with '-e DEBUG=stayalive'