Esempio n. 1
0
def configured_cluster_for_nodes(reactor, certificates, nodes, dataset_backend,
                                 dataset_backend_configuration):
    """
    Get a ``Cluster`` with Flocker services running on the right nodes.

    :param reactor: The reactor.
    :param Certificates certificates: The certificates to install on the
        cluster.
    :param nodes: The ``ManagedNode``s on which to operate.
    :param NamedConstant dataset_backend: The ``DatasetBackend`` constant
        representing the dataset backend that the nodes will be configured to
        use when they are "started".
    :param dict dataset_backend_configuration: The backend-specific
        configuration the nodes will be given for their dataset backend.

    :returns: A ``Deferred`` which fires with ``Cluster`` when it is
        configured.
    """
    default_volume_size = GiB(1)
    if dataset_backend_configuration.get('auth_plugin') == 'rackspace':
        default_volume_size = GiB(100)

    cluster = Cluster(all_nodes=pvector(nodes),
                      control_node=nodes[0],
                      agent_nodes=nodes,
                      dataset_backend=dataset_backend,
                      default_volume_size=int(
                          default_volume_size.to_Byte().value),
                      certificates=certificates)

    configuring = perform(
        make_dispatcher(reactor),
        configure_cluster(cluster, dataset_backend_configuration))
    configuring.addCallback(lambda ignored: cluster)
    return configuring
Esempio n. 2
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def configured_cluster_for_nodes(
    reactor, certificates, nodes, dataset_backend,
    dataset_backend_configuration, dataset_backend_config_file,
    provider=None
):
    """
    Get a ``Cluster`` with Flocker services running on the right nodes.

    :param reactor: The reactor.
    :param Certificates certificates: The certificates to install on the
        cluster.
    :param nodes: The ``ManagedNode``s on which to operate.
    :param NamedConstant dataset_backend: The ``DatasetBackend`` constant
        representing the dataset backend that the nodes will be configured to
        use when they are "started".
    :param dict dataset_backend_configuration: The backend-specific
        configuration the nodes will be given for their dataset backend.
    :param FilePath dataset_backend_config_file: A FilePath that has the
        dataset_backend info stored.

    :returns: A ``Deferred`` which fires with ``Cluster`` when it is
        configured.
    """
    # XXX: There is duplication between the values here and those in
    # f.node.agents.test.blockdevicefactory.MINIMUM_ALLOCATABLE_SIZES. We want
    # the default volume size to be greater than or equal to the minimum
    # allocatable size.
    #
    # Ideally, the minimum allocatable size (and perhaps the default volume
    # size) would be something known by an object that represents the dataset
    # backend. Unfortunately:
    #  1. There is no such object
    #  2. There is existing confusion in the code around 'openstack' and
    #     'rackspace'
    #
    # Here, we special-case Rackspace (presumably) because it has a minimum
    # allocatable size that is different from other Openstack backends.
    #
    # FLOC-2584 also discusses this.
    default_volume_size = GiB(1)
    if dataset_backend_configuration.get('auth_plugin') == 'rackspace':
        default_volume_size = RACKSPACE_MINIMUM_VOLUME_SIZE

    cluster = Cluster(
        all_nodes=pvector(nodes),
        control_node=nodes[0],
        agent_nodes=nodes,
        dataset_backend=dataset_backend,
        default_volume_size=int(default_volume_size.to_Byte().value),
        certificates=certificates,
        dataset_backend_config_file=dataset_backend_config_file
    )

    configuring = perform(
        make_dispatcher(reactor),
        configure_cluster(cluster, dataset_backend_configuration, provider)
    )
    configuring.addCallback(lambda ignored: cluster)
    return configuring
Esempio n. 3
0
def configured_cluster_for_nodes(
    reactor, certificates, nodes, dataset_backend,
    dataset_backend_configuration, dataset_backend_config_file,
    provider=None
):
    """
    Get a ``Cluster`` with Flocker services running on the right nodes.

    :param reactor: The reactor.
    :param Certificates certificates: The certificates to install on the
        cluster.
    :param nodes: The ``ManagedNode``s on which to operate.
    :param NamedConstant dataset_backend: The ``DatasetBackend`` constant
        representing the dataset backend that the nodes will be configured to
        use when they are "started".
    :param dict dataset_backend_configuration: The backend-specific
        configuration the nodes will be given for their dataset backend.
    :param FilePath dataset_backend_config_file: A FilePath that has the
        dataset_backend info stored.

    :returns: A ``Deferred`` which fires with ``Cluster`` when it is
        configured.
    """
    # XXX: There is duplication between the values here and those in
    # f.node.agents.test.blockdevicefactory.MINIMUM_ALLOCATABLE_SIZES. We want
    # the default volume size to be greater than or equal to the minimum
    # allocatable size.
    #
    # Ideally, the minimum allocatable size (and perhaps the default volume
    # size) would be something known by an object that represents the dataset
    # backend. Unfortunately:
    #  1. There is no such object
    #  2. There is existing confusion in the code around 'openstack' and
    #     'rackspace'
    #
    # Here, we special-case Rackspace (presumably) because it has a minimum
    # allocatable size that is different from other Openstack backends.
    #
    # FLOC-2584 also discusses this.
    default_volume_size = GiB(1)
    if dataset_backend_configuration.get('auth_plugin') == 'rackspace':
        default_volume_size = RACKSPACE_MINIMUM_VOLUME_SIZE

    cluster = Cluster(
        all_nodes=pvector(nodes),
        control_node=nodes[0],
        agent_nodes=nodes,
        dataset_backend=dataset_backend,
        default_volume_size=int(default_volume_size.to_Byte().value),
        certificates=certificates,
        dataset_backend_config_file=dataset_backend_config_file
    )

    configuring = perform(
        make_dispatcher(reactor),
        configure_cluster(cluster, dataset_backend_configuration, provider)
    )
    configuring.addCallback(lambda ignored: cluster)
    return configuring
Esempio n. 4
0
def configured_cluster_for_nodes(
    reactor, certificates, nodes, dataset_backend,
    dataset_backend_configuration
):
    """
    Get a ``Cluster`` with Flocker services running on the right nodes.

    :param reactor: The reactor.
    :param Certificates certificates: The certificates to install on the
        cluster.
    :param nodes: The ``ManagedNode``s on which to operate.
    :param NamedConstant dataset_backend: The ``DatasetBackend`` constant
        representing the dataset backend that the nodes will be configured to
        use when they are "started".
    :param dict dataset_backend_configuration: The backend-specific
        configuration the nodes will be given for their dataset backend.

    :returns: A ``Deferred`` which fires with ``Cluster`` when it is
        configured.
    """
    default_volume_size = GiB(1)
    if dataset_backend_configuration.get('auth_plugin') == 'rackspace':
        default_volume_size = GiB(100)

    cluster = Cluster(
        all_nodes=pvector(nodes),
        control_node=nodes[0],
        agent_nodes=nodes,
        dataset_backend=dataset_backend,
        default_volume_size=int(default_volume_size.to_Byte().value),
        certificates=certificates
    )

    configuring = perform(
        make_dispatcher(reactor),
        configure_cluster(cluster, dataset_backend_configuration)
    )
    configuring.addCallback(lambda ignored: cluster)
    return configuring