Chapter 3. Integrate with an existing Ceph Storage cluster

Procedure

1. Use one of the following options to create and add an additional environment file:

   • If you deploy an overcloud that uses the native CephFS back end driver, use /usr/share/openstack-tripleo-heat-templates/environments/manila-cephfsnative-config.yaml.

   • If you deploy an overcloud that uses CephFS through NFS, use /usr/share/openstack-tripleo-heat-templates/environments/manila-cephfsganesha-config.yaml.

     For CephFS through NFS, you must also deploy a custom Controller role to run the Ganesha CephFS to NFS gateway. This role also configures isolated StorageNFS network to deliver shares to clients. For more information about the StorageNFS network and the custom Controller role, see Deploying the updated environment in the CephFS via NFS Back End Guide for the Shared File Systems Service.

2. Alter the form of the openstack overcloud deploy command depending on the CephFS back end that you use.

   • For native CephFS:

      $ openstack overcloud deploy --templates \
        -e /usr/share/openstack-tripleo-heat-templates/environments/ceph-ansible/ceph-ansible-external.yaml \
        -e /usr/share/openstack-tripleo-heat-templates/environments/manila-cephfsnative-config.yaml \
        -e /home/stack/templates/ceph-config.yaml \
        -e --ntp-server pool.ntp.org

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   • For CephFS through NFS:

       $ openstack overcloud deploy --templates \
           -n /usr/share/openstack-tripleo-heat-templates/network_data_ganesha.yaml \
           -r /home/stack/custom_roles.yaml \
           -e /usr/share/openstack-tripleo-heat-templates/environments/ceph-ansible/ceph-ansible-external.yaml \
           -e /usr/share/openstack-tripleo-heat-templates/environments/manila-cephfsganesha-config.yaml \
           -e /home/stack/templates/ceph-config.yaml \
           -e --ntp-server pool.ntp.org

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Procedure

1. Add the following parameter_defaults to a custom environment file, for example, swift-external-params.yaml. Replace the values to suit your deployment:

   parameter_defaults:
      ExternalSwiftPublicUrl: 'http://<Public RGW endpoint or loadbalancer>:8080/swift/v1/AUTH_%(project_id)s'
      ExternalSwiftInternalUrl: 'http://<Internal RGW endpoint>:8080/swift/v1/AUTH_%(project_id)s'
      ExternalSwiftAdminUrl: 'http://<Admin RGW endpoint>:8080/swift/v1/AUTH_%(project_id)s'
      ExternalSwiftUserTenant: 'service'
      SwiftPassword: 'choose_a_random_password'

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   Note

   The example code snippet contains parameter values that might differ from values that you use in your environment:

   • The default port where the remote RGW instance listens is 8080. The port might be different depending on how the external RGW is configured.
   • The swift user created in the overcloud uses the password defined by the SwiftPassword parameter. You must configure the external RGW instance to use the same password to authenticate with the Identity service by using the rgw_keystone_admin_password.

2. Add the following code to the Ceph config file to configure RGW to use the Identity service. Replace the variable values to suit your environment:

       rgw_keystone_api_version = 3
       rgw_keystone_url = http://<public Keystone endpoint>:5000/
       rgw_keystone_accepted_roles = member, Member, admin
       rgw_keystone_accepted_admin_roles = ResellerAdmin, swiftoperator
       rgw_keystone_admin_domain = default
       rgw_keystone_admin_project = service
       rgw_keystone_admin_user = swift
       rgw_keystone_admin_password = <password_as_defined_in_the_environment_parameters>
       rgw_keystone_implicit_tenants = true
       rgw_keystone_revocation_interval = 0
       rgw_s3_auth_use_keystone = true
       rgw_swift_versioning_enabled = true
       rgw_swift_account_in_url = true

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   Note

   Director creates the following roles and users in the Identity service by default:

   • rgw_keystone_accepted_admin_roles: ResellerAdmin, swiftoperator
   • rgw_keystone_admin_domain: default
   • rgw_keystone_admin_project: service
   • rgw_keystone_admin_user: swift

3. Deploy the overcloud with the additional environment files with any other environment files that are relevant to your deployment::

   openstack overcloud deploy --templates \
   -e <your_environment_files>
   -e /usr/share/openstack-tripleo-heat-templates/environments/swift-external.yaml
   -e swift-external-params.yaml

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