This change will allow mapping rbd images on Windows, leveraging the
WNBD[1] Virtual Storport Miniport driver [2].
The behavior and CLI is similar to the Linux rbd-nbd, with a few
notable differences:
* device paths cannot be requested. The disk number and path will
be picked by Windows. If a device path is provided by the user
when mapping an image, it will be used as an identifier, which
can also be used when unmapping the image.
* the "show" command was added, which describes a specific mapping.
This can be used for retrieving the disk path.
* the "service" command was added, allowing rbd-wnbd to run as a
Windows service. All mappings are currently perisistent, being
recreated when the service stops, unless explicitly unmapped.
The service disconnects the mappings when being stopped.
* the "list" command also includes a "status" column.
The purpose of the "service" mode is to ensure that mappings survive
reboots and that the Windows service start order can be adjusted so
that rbd images can be mapped before starting services that may depend
on it, such as VMMS.
The mapped images can either be consumed by the host directly or exposed
to Hyper-V VMs.
While at it, we'll skip building rbd-mirror as it's quite unlikely that
this daemon is going to be used on Windows for now.
[1] https://github.com/cloudbase/wnbd
[2] https://docs.microsoft.com/en-us/windows-hardware/drivers/storage/overview-of-storage-virtual-miniport-drivers
Signed-off-by: Lucian Petrut <lpetrut@cloudbasesolutions.com>
Signed-off-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
For now, we'll only build some of the Ceph CLI binaries when
targeting Windows. In order to avoid over complicating the
cmake files, it was decided that the build script should pick
the targets that are to be compiled.
To keep the build script relatively simple, we'll stop supporting
Ninja, sticking to "make". Another reason for that is that some
targets cannot be compiled using Ninja:
http://paste.openstack.org/raw/796649/
Signed-off-by: Lucian Petrut <lpetrut@cloudbasesolutions.com>
WITH_PYTHON2 option was deprecated in
5fc657b40d, that commit was included by
Ceph v15.1.0 and up, assuming all downstream packagings have removed
WITH_PYTHON2 option, we are now removing it completely.
Signed-off-by: Kefu Chai <kchai@redhat.com>
This patch adds a couple of scripts that can be used for
building Ceph for Windows along with its dependencies.
For now, we're going to cross compile it using mingw.
It's supposed to run on Ubuntu (feel free to update
the command that's installing some of the dependencies
within win32_deps_build.sh if you're interested in other
distros).
This commit also adds a short readme, describing the focus of
the Windows porting effort, the building process and the current
status.
Signed-off-by: Lucian Petrut <lpetrut@cloudbasesolutions.com>
Signed-off-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
