189 lines
6.8 KiB
Puppet
189 lines
6.8 KiB
Puppet
# == define: cinder::backend::rbd
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#
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# Setup Cinder to use the RBD driver.
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# Compatible for multiple backends
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#
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# === Parameters
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#
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# [*rbd_pool*]
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# (required) Specifies the pool name for the block device driver.
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#
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# [*rbd_user*]
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# (required) A required parameter to configure OS init scripts and cephx.
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#
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# [*backend_host*]
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# (optional) Allows specifying the hostname/key used for the owner of volumes
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# created. This must be set to the same value on all nodes in a multi-node
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# environment.
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# Defaults to 'rbd:<rbd_pool>'
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#
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# [*volume_backend_name*]
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# (optional) Allows for the volume_backend_name to be separate of $name.
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# Defaults to: $name
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#
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# [*backend_availability_zone*]
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# (Optional) Availability zone for this volume backend.
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# If not set, the storage_availability_zone option value
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# is used as the default for all backends.
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# Defaults to $::os_service_default.
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#
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# [*rbd_ceph_conf*]
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# (optional) Path to the ceph configuration file to use
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# Defaults to '/etc/ceph/ceph.conf'
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#
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# [*rbd_flatten_volume_from_snapshot*]
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# (optional) Enable flatten volumes created from snapshots.
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# Defaults to false
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#
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# [*rbd_secret_uuid*]
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# (optional) A required parameter to use cephx.
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# Defaults to $::os_service_default
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#
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# [*rbd_max_clone_depth*]
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# (optional) Maximum number of nested clones that can be taken of a
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# volume before enforcing a flatten prior to next clone.
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# A value of zero disables cloning
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# Defaults to $::os_service_default
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#
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# [*rados_connect_timeout*]
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# (optional) Timeout value (in seconds) used when connecting to ceph cluster.
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# If value < 0, no timeout is set and default librados value is used.
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# Defaults to $::os_service_default
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#
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# [*rados_connection_interval*]
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# (optional) Interval value (in seconds) between connection retries to ceph
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# cluster.
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# Defaults to $::os_service_default
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#
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# [*rados_connection_retries*]
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# (optional) Number of retries if connection to ceph cluster failed.
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# Defaults to $::os_service_default
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#
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# [*rbd_store_chunk_size*]
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# (optional) Volumes will be chunked into objects of this size (in megabytes).
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# Defaults to $::os_service_default
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#
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# [*report_dynamic_total_capacity*]
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# (optional) Set to True for driver to report total capacity as a dynamic
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# value
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# Defaults to $::os_service_default
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#
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# [*rbd_exclusive_cinder_pool*]
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# (optional) Set to True if the pool is used exclusively by Cinder.
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# Defaults to $::os_service_default
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#
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# [*manage_volume_type*]
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# (Optional) Whether or not manage Cinder Volume type.
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# If set to true, a Cinder Volume type will be created
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# with volume_backend_name=$volume_backend_name key/value.
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# Defaults to false.
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#
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# [*extra_options*]
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# (optional) Hash of extra options to pass to the backend stanza
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# Defaults to: {}
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# Example :
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# { 'rbd_backend/param1' => { 'value' => value1 } }
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#
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define cinder::backend::rbd (
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$rbd_pool,
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$rbd_user,
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$backend_host = undef,
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$volume_backend_name = $name,
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$backend_availability_zone = $::os_service_default,
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$rbd_ceph_conf = '/etc/ceph/ceph.conf',
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$rbd_flatten_volume_from_snapshot = $::os_service_default,
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$rbd_secret_uuid = $::os_service_default,
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$rbd_max_clone_depth = $::os_service_default,
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$rados_connect_timeout = $::os_service_default,
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$rados_connection_interval = $::os_service_default,
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$rados_connection_retries = $::os_service_default,
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$rbd_store_chunk_size = $::os_service_default,
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$report_dynamic_total_capacity = $::os_service_default,
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$rbd_exclusive_cinder_pool = $::os_service_default,
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$manage_volume_type = false,
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$extra_options = {},
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) {
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include cinder::deps
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include cinder::params
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$rbd_cluster_name = basename($rbd_ceph_conf, '.conf')
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if $rbd_cluster_name == 'ceph' {
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# Do not pass a parameter value in order to avoid service restarts
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$rbd_cluster_name_real = undef
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} else {
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$rbd_cluster_name_real = $rbd_cluster_name
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}
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cinder_config {
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"${name}/volume_backend_name": value => $volume_backend_name;
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"${name}/backend_availability_zone": value => $backend_availability_zone;
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"${name}/volume_driver": value => 'cinder.volume.drivers.rbd.RBDDriver';
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"${name}/rbd_ceph_conf": value => $rbd_ceph_conf;
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"${name}/rbd_user": value => $rbd_user;
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"${name}/rbd_pool": value => $rbd_pool;
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"${name}/rbd_max_clone_depth": value => $rbd_max_clone_depth;
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"${name}/rbd_flatten_volume_from_snapshot": value => $rbd_flatten_volume_from_snapshot;
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"${name}/rbd_secret_uuid": value => $rbd_secret_uuid;
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"${name}/rados_connect_timeout": value => $rados_connect_timeout;
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"${name}/rados_connection_interval": value => $rados_connection_interval;
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"${name}/rados_connection_retries": value => $rados_connection_retries;
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"${name}/rbd_store_chunk_size": value => $rbd_store_chunk_size;
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"${name}/rbd_cluster_name": value => $rbd_cluster_name_real;
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"${name}/report_dynamic_total_capacity": value => $report_dynamic_total_capacity;
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"${name}/rbd_exclusive_cinder_pool": value => $rbd_exclusive_cinder_pool;
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"${name}/report_discard_supported": value => true;
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}
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if $manage_volume_type {
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cinder_type { $volume_backend_name:
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ensure => present,
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properties => ["volume_backend_name=${volume_backend_name}"],
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}
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}
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# Avoid colliding with code in backends.pp
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unless defined(Cinder_config["${name}/backend_host"]) {
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if $backend_host {
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cinder_config {
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"${name}/backend_host": value => $backend_host;
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}
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} else {
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cinder_config {
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"${name}/backend_host": value => "rbd:${rbd_pool}";
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}
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}
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}
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ensure_packages( 'ceph-common', {
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ensure => present,
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name => $::cinder::params::ceph_common_package_name,
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tag => 'cinder-support-package'})
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create_resources('cinder_config', $extra_options)
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case $::osfamily {
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'Debian': {
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$override_line = "CEPH_ARGS=\"--id ${rbd_user}\""
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$override_match = '^CEPH_ARGS='
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}
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'RedHat': {
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$override_line = "export CEPH_ARGS=\"--id ${rbd_user}\""
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$override_match = '^export CEPH_ARGS='
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}
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default: {
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fail("unsupported osfamily ${::osfamily}, currently Debian and Redhat are the only supported platforms")
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}
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}
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# Creates an empty file if it doesn't yet exist
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ensure_resource('file', $::cinder::params::ceph_init_override, {'ensure' => 'present'})
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file_line { "set initscript env ${name}":
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line => $override_line,
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path => $::cinder::params::ceph_init_override,
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notify => Anchor['cinder::service::begin'],
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}
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}
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