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Add a sheepdog backend for the storage driver

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This patch brings support to manage sheepdog pools and volumes to libvirt.
It uses the "collie" command-line utility that comes with sheepdog for that.

A sheepdog pool in libvirt maps to a sheepdog cluster.
It needs a host and port to connect to, which in most cases
is just going to be the default of localhost on port 7000.

A sheepdog volume in libvirt maps to a sheepdog vdi.
To create one specify the pool, a name and the capacity.
Volumes can also be resized later.

In the volume XML the vdi name has to be put into the <target><path>.
To use the volume as a disk source for virtual machines specify
the vdi name as "name" attribute of the <source>.
The host and port information from the pool are specified inside the host tag.

  <disk type='network'>
    ...
    <source protocol="sheepdog" name="vdi_name">
      <host name="localhost" port="7000"/>
    </source>
  </disk>

To work right this patch parses the output of collie,
so it relies on the raw output option. There recently was a bug which caused
size information to be reported wrong. This is fixed upstream already and
will be in the next release.

Signed-off-by: Sebastian Wiedenroth <wiedi@frubar.net>
This commit is contained in:
Sebastian Wiedenroth
2012-07-18 20:06:58 +01:00
committed by Daniel P. Berrange
parent e00184291e
commit 29bc4fe646
24 changed files with 800 additions and 16 deletions
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35
libvirt.spec.in
View File

@@ -69,19 +69,24 @@
%define with_xenapi 0%{!?_without_xenapi:1}
# Then the secondary host drivers, which run inside libvirtd
%define with_network 0%{!?_without_network:%{server_drivers}}
%define with_storage_fs 0%{!?_without_storage_fs:%{server_drivers}}
%define with_storage_lvm 0%{!?_without_storage_lvm:%{server_drivers}}
%define with_storage_iscsi 0%{!?_without_storage_iscsi:%{server_drivers}}
%define with_storage_disk 0%{!?_without_storage_disk:%{server_drivers}}
%define with_storage_mpath 0%{!?_without_storage_mpath:%{server_drivers}}
%define with_network 0%{!?_without_network:%{server_drivers}}
%define with_storage_fs 0%{!?_without_storage_fs:%{server_drivers}}
%define with_storage_lvm 0%{!?_without_storage_lvm:%{server_drivers}}
%define with_storage_iscsi 0%{!?_without_storage_iscsi:%{server_drivers}}
%define with_storage_disk 0%{!?_without_storage_disk:%{server_drivers}}
%define with_storage_mpath 0%{!?_without_storage_mpath:%{server_drivers}}
%if 0%{?fedora} >= 16
%define with_storage_rbd 0%{!?_without_storage_rbd:%{server_drivers}}
%define with_storage_rbd 0%{!?_without_storage_rbd:%{server_drivers}}
%else
%define with_storage_rbd 0
%define with_storage_rbd 0
%endif
%define with_numactl 0%{!?_without_numactl:%{server_drivers}}
%define with_selinux 0%{!?_without_selinux:%{server_drivers}}
%if 0%{?fedora} >= 17
%define with_storage_sheepdog 0%{!?_without_storage_sheepdog:%{server_drivers}}
%else
%define with_storage_sheepdog 0
%endif
%define with_numactl 0%{!?_without_numactl:%{server_drivers}}
%define with_selinux 0%{!?_without_selinux:%{server_drivers}}
# A few optional bits off by default, we enable later
%define with_polkit 0%{!?_without_polkit:0}
@@ -224,6 +229,7 @@
%define with_storage_iscsi 0
%define with_storage_mpath 0
%define with_storage_rbd 0
%define with_storage_sheepdog 0
%define with_storage_disk 0
%endif
@@ -603,6 +609,10 @@ Requires: device-mapper
# For RBD support
Requires: ceph
%endif
%if %{with_storage_sheepdog}
# For Sheepdog support
Requires: sheepdog
%endif
%if %{with_cgconfig}
Requires: libcgroup
%endif
@@ -1080,6 +1090,10 @@ of recent versions of Linux (and other OSes).
%define _without_storage_rbd --without-storage-rbd
%endif
%if ! %{with_storage_sheepdog}
%define _without_storage_sheepdog --without-storage-sheepdog
%endif
%if ! %{with_numactl}
%define _without_numactl --without-numactl
%endif
@@ -1178,6 +1192,7 @@ autoreconf -if
%{?_without_storage_disk} \
%{?_without_storage_mpath} \
%{?_without_storage_rbd} \
%{?_without_storage_sheepdog} \
%{?_without_numactl} \
%{?_without_numad} \
%{?_without_capng} \