Fix indent in overview_policies.rst
Change-Id: I7f070956d8b996db798837392adfca4483067aea
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David Rabel
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058eb772e3
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@ -219,13 +219,13 @@ used. :ref:`configure-policy` describes how to deprecate a policy.
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Swift's behavior with deprecated policies is as follows:
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* The deprecated policy will not appear in /info
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* PUT/GET/DELETE/POST/HEAD are still allowed on the pre-existing containers
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created with a deprecated policy
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* Clients will get an ''400 Bad Request'' error when trying to create a new
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container using the deprecated policy
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* Clients still have access to policy statistics via HEAD on pre-existing
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containers
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* The deprecated policy will not appear in /info
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* PUT/GET/DELETE/POST/HEAD are still allowed on the pre-existing containers
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created with a deprecated policy
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* Clients will get an ''400 Bad Request'' error when trying to create a new
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container using the deprecated policy
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* Clients still have access to policy statistics via HEAD on pre-existing
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containers
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.. note::
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@ -272,10 +272,10 @@ section name must be of the form ``[storage-policy:<N>]`` where ``<N>`` is the
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policy index. There's no reason other than readability that policy indexes be
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sequential but the following rules are enforced:
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* If a policy with index ``0`` is not declared and no other policies are
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defined, Swift will create a default policy with index ``0``.
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* The policy index must be a non-negative integer.
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* Policy indexes must be unique.
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* If a policy with index ``0`` is not declared and no other policies are
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defined, Swift will create a default policy with index ``0``.
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* The policy index must be a non-negative integer.
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* Policy indexes must be unique.
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.. warning::
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@ -284,46 +284,46 @@ sequential but the following rules are enforced:
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Each policy section contains the following options:
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* ``name = <policy_name>`` (required)
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- The primary name of the policy.
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- Policy names are case insensitive.
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- Policy names must contain only letters, digits or a dash.
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- Policy names must be unique.
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- Policy names can be changed.
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- The name ``Policy-0`` can only be used for the policy with
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index ``0``.
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* ``aliases = <policy_name>[, <policy_name>, ...]`` (optional)
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- A comma-separated list of alternative names for the policy.
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- The default value is an empty list (i.e. no aliases).
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- All alias names must follow the rules for the ``name`` option.
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- Aliases can be added to and removed from the list.
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- Aliases can be useful to retain support for old primary names if the
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primary name is changed.
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* ``default = [true|false]`` (optional)
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- If ``true`` then this policy will be used when the client does not
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specify a policy.
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- The default value is ``false``.
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- The default policy can be changed at any time, by setting
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``default = true`` in the desired policy section.
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- If no policy is declared as the default and no other policies are
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defined, the policy with index ``0`` is set as the default;
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- Otherwise, exactly one policy must be declared default.
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- Deprecated policies cannot be declared the default.
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- See :ref:`default-policy` for more information.
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* ``deprecated = [true|false]`` (optional)
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- If ``true`` then new containers cannot be created using this policy.
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- The default value is ``false``.
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- Any policy may be deprecated by adding the ``deprecated`` option to
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the desired policy section. However, a deprecated policy may not also
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be declared the default. Therefore, since there must always be a
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default policy, there must also always be at least one policy which
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is not deprecated.
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- See :ref:`deprecate-policy` for more information.
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* ``policy_type = [replication|erasure_coding]`` (optional)
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- The option ``policy_type`` is used to distinguish between different
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policy types.
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- The default value is ``replication``.
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- When defining an EC policy use the value ``erasure_coding``.
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* ``name = <policy_name>`` (required)
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- The primary name of the policy.
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- Policy names are case insensitive.
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- Policy names must contain only letters, digits or a dash.
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- Policy names must be unique.
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- Policy names can be changed.
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- The name ``Policy-0`` can only be used for the policy with
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index ``0``.
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* ``aliases = <policy_name>[, <policy_name>, ...]`` (optional)
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- A comma-separated list of alternative names for the policy.
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- The default value is an empty list (i.e. no aliases).
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- All alias names must follow the rules for the ``name`` option.
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- Aliases can be added to and removed from the list.
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- Aliases can be useful to retain support for old primary names if the
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primary name is changed.
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* ``default = [true|false]`` (optional)
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- If ``true`` then this policy will be used when the client does not
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specify a policy.
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- The default value is ``false``.
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- The default policy can be changed at any time, by setting
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``default = true`` in the desired policy section.
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- If no policy is declared as the default and no other policies are
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defined, the policy with index ``0`` is set as the default;
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- Otherwise, exactly one policy must be declared default.
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- Deprecated policies cannot be declared the default.
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- See :ref:`default-policy` for more information.
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* ``deprecated = [true|false]`` (optional)
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- If ``true`` then new containers cannot be created using this policy.
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- The default value is ``false``.
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- Any policy may be deprecated by adding the ``deprecated`` option to
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the desired policy section. However, a deprecated policy may not also
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be declared the default. Therefore, since there must always be a
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default policy, there must also always be at least one policy which
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is not deprecated.
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- See :ref:`deprecate-policy` for more information.
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* ``policy_type = [replication|erasure_coding]`` (optional)
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- The option ``policy_type`` is used to distinguish between different
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policy types.
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- The default value is ``replication``.
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- When defining an EC policy use the value ``erasure_coding``.
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The EC policy type has additional required options. See
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:ref:`using_ec_policy` for details.
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@ -648,10 +648,10 @@ that you wanted to take an existing cluster that already has lots of data on it
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and upgrade to Swift with Storage Policies. From there you want to go ahead and
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create a policy and test a few things out. All you need to do is:
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#. Upgrade all of your Swift nodes to a policy-aware version of Swift
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#. Define your policies in ``/etc/swift/swift.conf``
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#. Create the corresponding object rings
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#. Create containers and objects and confirm their placement is as expected
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#. Upgrade all of your Swift nodes to a policy-aware version of Swift
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#. Define your policies in ``/etc/swift/swift.conf``
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#. Create the corresponding object rings
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#. Create containers and objects and confirm their placement is as expected
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For a specific example that takes you through these steps, please see
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:doc:`policies_saio`
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