initial code repo

This patch creates initial code repo.

For ceph, luminous stable release will be used for base code,
and next changes and optimization for ceph will be added to it.

For opensds, currently any changes can be upstreamed into original
opensds repo (https://github.com/opensds/opensds), and so stor4nfv
will directly clone opensds code to deploy stor4nfv environment.
And the scripts for deployment based on ceph and opensds will be
put into 'ci' directory.

Change-Id: I46a32218884c75dda2936337604ff03c554648e4
Signed-off-by: Qiaowei Ren <qiaowei.ren@intel.com>

1 files changed, 107 insertions, 0 deletions

diff --git a/src/ceph/doc/radosgw/multitenancy.rst b/src/ceph/doc/radosgw/multitenancy.rst
new file mode 100644
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+=================
+RGW Multi-tenancy
+=================
+
+.. versionadded:: Jewel
+
+The multi-tenancy feature allows to use buckets and users of the same
+name simultaneously by segregating them under so-called ``tenants``.
+This may be useful, for instance, to permit users of Swift API to
+create buckets with easily conflicting names such as "test" or "trove".
+
+From the Jewel release onward, each user and bucket lies under a tenant.
+For compatibility, a "legacy" tenant with an empty name is provided.
+Whenever a bucket is referred without an explicit tenant, an implicit
+tenant is used, taken from the user performing the operation. Since
+the pre-existing users are under the legacy tenant, they continue
+to create and access buckets as before. The layout of objects in RADOS
+is extended in a compatible way, ensuring a smooth upgrade to Jewel.
+
+Administering Users With Explicit Tenants
+=========================================
+
+Tenants as such do not have any operations on them. They appear and
+and disappear as needed, when users are administered. In order to create,
+modify, and remove users with explicit tenants, either an additional
+option --tenant is supplied, or a syntax "<tenant>$<user>" is used
+in the parameters of the radosgw-admin command.
+
+Examples
+--------
+
+Create a user testx$tester to be accessed with S3::
+
+  # radosgw-admin --tenant testx --uid tester --display-name "Test User" --access_key TESTER --secret test123 user create
+
+Create a user testx$tester to be accessed with Swift::
+
+  # radosgw-admin --tenant testx --uid tester --display-name "Test User" --subuser tester:test --key-type swift --access full user create
+  # radosgw-admin --subuser 'testx$tester:test' --key-type swift --secret test123
+
+.. note:: The subuser with explicit tenant has to be quoted in the shell.
+
+   Tenant names may contain only alphanumeric characters and underscores.
+
+Accessing Buckets with Explicit Tenants
+=======================================
+
+When a client application accesses buckets, it always operates with
+credentials of a particular user. As mentioned above, every user belongs
+to a tenant. Therefore, every operation has an implicit tenant in its
+context, to be used if no tenant is specified explicitly. Thus a complete
+compatibility is maintained with previous releases, as long as the
+referred buckets and referring user belong to the same tenant.
+In other words, anything unusual occurs when accessing another tenant's
+buckets *only*.
+
+Extensions employed to specify an explicit tenant differ according
+to the protocol and authentication system used.
+
+S3
+--
+
+In case of S3, a colon character is used to separate tenant and bucket.
+Thus a sample URL would be::
+
+  https://ep.host.dom/tenant:bucket
+
+Here's a simple Python sample:
+
+.. code-block:: python
+   :linenos:
+
+	from boto.s3.connection import S3Connection, OrdinaryCallingFormat
+	c = S3Connection(
+		aws_access_key_id="TESTER",
+		aws_secret_access_key="test123",
+		host="ep.host.dom",
+		calling_format = OrdinaryCallingFormat())
+	bucket = c.get_bucket("test5b:testbucket")
+
+Note that it's not possible to supply an explicit tenant using
+a hostname. Hostnames cannot contain colons, or any other separators
+that are not already valid in bucket names. Using a period creates an
+ambiguous syntax. Therefore, the bucket-in-URL-path format has to be
+used.
+
+Swift with built-in authenticator
+---------------------------------
+
+TBD -- not in test_multen.py yet
+
+Swift with Keystone
+-------------------
+
+TBD -- don't forget to explain the function of
+       rgw keystone implicit tenants = true
+       in commit e9259486decab52a362443d3fd3dec33b0ec654f
+
+Notes and known issues
+----------------------
+
+Just to be clear, it is not possible to create buckets in other
+tenants at present. The owner of newly created bucket is extracted
+from authentication information.
+
+This document needs examples of administration of Keystone users.
+The keystone.rst may need to be updated.