Description of problem: On this page, https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/12/html-single/integrating_an_overcloud_with_an_existing_red_hat_ceph_cluster/ In section 3 (https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/12/html-single/integrating_an_overcloud_with_an_existing_red_hat_ceph_cluster/#integrate-cluster) you refer to a file called '/usr/share/openstack-tripleo-heat-templates/environments/storage/external-ceph.yaml' which is the correct file. However, in section 3.3 (https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/12/html-single/integrating_an_overcloud_with_an_existing_red_hat_ceph_cluster/#create-overcloud) in the deploy step, you refer to the file, '/usr/share/openstack-tripleo-heat-templates/environments/external-ceph.yaml' you simply miss the "/storage/" from the path. This leads to a deployment failure. Also, in section 3 (https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/12/html-single/integrating_an_overcloud_with_an_existing_red_hat_ceph_cluster/#integrate-cluster) in the parameters sections, there is no mention about the parameter 'CephExternalMonHost:', isn't this one mandatory ?
Assigning to Laura for review. Laura, this BZ is for the RHOSP 12 doc, but should be reviewed with a SME for relevance to 13 as well.
*** Bug 1533539 has been marked as a duplicate of this bug. ***