Configuring the Shared File System (manila) service (optional)

By default the Shared File System (manila) service does not deploy any backend. This role expects you to define the backend you intend on using. The following sections describe example configurations for various manila backends.

Default share type

It is required to define one of the manila_backends as the default share type.

manila_default_share_type: SHARE_TYPE_NAME

Replce SHARE_TYPE_NAME with the name of the default backend.

LVM backend

The LVM backend allows provisioning of logical volumes and configuriung a local NFS server to serve those volumes as shares.

Note

Using the LVM backend results in a Single Point of Failure

  1. For each storage node, add one manila_backends block underneath the container_vars section. container_vars are used to allow container/host individualized configuration. Each manila back end is defined with a unique key. For example, nfs-share1. This later represents a unique manila backend and share type.

    container_vars:
  manila_enabled_share_protocols: NFS
  manila_backends:
    nfs-share1:

  2. Configure the appropriate share protocols. For the LVM backend you will need a minimu of NFS.

    container_vars:
  manila_enabled_share_protocols: NFS

  3. Configure the appropriate manila share backend name:

    share_backend_name: NFS_SHARE1

  4. Configure the appropriate manila LVM driver:

    share_driver: manila.share.drivers.lvm.LVMShareDriver
lvm_share_volume_group: LVM_VOLUME_GROUP

    Replace LVM_VOLUME_GROUP with the name of the LVM volume group manila should use to provision shares.

  5. Configure whether this backend manages share servers. The only current supported option for this role is False as deploying a manila backend that manages share servers has not been tested yet.

    driver_handles_share_servers: False

  6. Configure the IP address/es or hostnames of the share server.

    lvm_share_export_ips: "IP_ADDRESS"

    Replace IP_ADDRESS with a comma separated string of one or more IP addresses or hostnames where the nfs shares will be exported from.

The following is a full configuration example of a manila LVM backend named NFS_SHARE1. The manila playbooks will automatically add a custom share-type and nfs-share1 as in this example:

container_vars:
   manila_default_share_type: nfs-share1
   manila_enabled_share_protocols: NFS
   manila_backends:
     limit_container_types: manila_share
     nfs-share1:
       share_backend_name: NFS_SHARE1
       share_driver: manila.share.drivers.lvm.LVMShareDriver
       driver_handles_share_servers: False
       lvm_share_volume_group: manila-shares
       lvm_share_export_ips: 172.29.236.100