5:27 a.m.
From: Royce Lv <lvroyce(a)linux.vnet.ibm.com>
v1>v2, Add handling exception.
Image file probe will be used in identify image file os info and
generate reasonable configuration for it.
This will be useful when import image and create a vm from it.
Signed-off-by: Royce Lv <lvroyce(a)linux.vnet.ibm.com>
---
docs/README.md | 9 ++++++---
src/kimchi/exception.py | 4 ++++
src/kimchi/i18n.py | 4 ++++
src/kimchi/imageinfo.py | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 62 insertions(+), 3 deletions(-)
create mode 100644 src/kimchi/imageinfo.py
diff --git a/docs/README.md b/docs/README.md
index ab03918..24537e1 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -54,7 +54,8 @@ Install Dependencies
qemu-kvm python-psutil python-ethtool sos \
python-ipaddr python-lxml nfs-utils \
iscsi-initiator-utils libxslt pyparted nginx \
- policycoreutils-python
+ policycoreutils-python python-libguestfs \
+ libguestfs-tools
# If using RHEL6, install the following additional packages:
$ sudo yum install python-unittest2 python-ordereddict
# Restart libvirt to allow configuration changes to take effect
@@ -76,7 +77,8 @@ for more information on how to configure your system to access this
repository.
python-pam python-m2crypto python-jsonschema \
qemu-kvm libtool python-psutil python-ethtool \
sosreport python-ipaddr python-lxml nfs-common \
- open-iscsi lvm2 xsltproc python-parted nginx firewalld
+ open-iscsi lvm2 xsltproc python-parted nginx \
+ firewalld python-guestfs libguestfs-tools
Packages version requirement:
python-jsonschema >= 1.3.0
@@ -90,7 +92,8 @@ for more information on how to configure your system to access this
repository.
python-pam python-M2Crypto python-jsonschema \
rpm-build kvm python-psutil python-ethtool \
python-ipaddr python-lxml nfs-client open-iscsi \
- libxslt-tools python-xml python-parted
+ libxslt-tools python-xml python-parted \
+ python-libguestfs guestfs-tools
Packages version requirement:
python-psutil >= 0.6.0
diff --git a/src/kimchi/exception.py b/src/kimchi/exception.py
index fcf60cc..6b4c913 100644
--- a/src/kimchi/exception.py
+++ b/src/kimchi/exception.py
@@ -89,5 +89,9 @@ class IsoFormatError(KimchiException):
pass
+class ImageFormatError(KimchiException):
+ pass
+
+
class TimeoutExpired(KimchiException):
pass
diff --git a/src/kimchi/i18n.py b/src/kimchi/i18n.py
index 91684b6..daeeed8 100644
--- a/src/kimchi/i18n.py
+++ b/src/kimchi/i18n.py
@@ -61,6 +61,10 @@ messages = {
"'%(user)s' to the ISO path group, or (not recommended)
'chmod -R o+x 'path_to_iso'."
"Details: %(err)s" ),
+ "KCHIMG0001E": _("Error occurs when probing image os
information."),
+ "KCHIMG0002E": _("No os information found in given image."),
+ "KCHIMG0003E": _("Unable to find/read image file %(filename)s"),
+
"KCHVM0001E": _("Virtual machine %(name)s already exists"),
"KCHVM0002E": _("Virtual machine %(name)s does not exist"),
"KCHVM0003E": _("Unable to rename virtual machine %(name)s. The name
%(new_name)s already exists or it is not powered off."),
diff --git a/src/kimchi/imageinfo.py b/src/kimchi/imageinfo.py
new file mode 100644
index 0000000..26a9480
--- /dev/null
+++ b/src/kimchi/imageinfo.py
@@ -0,0 +1,48 @@
+#
+# Kimchi
+#
+# Copyright IBM Corp, 2013
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+import os
+import sys
+import guestfs
+
+from kimchi.exception import ImageFormatError
+
+def probe_image(image_path):
+ g = guestfs.GuestFS(python_return_dict=True)
+ g.add_drive_opts(image_path, readonly=1)
+ g.launch()
+ if not os.access(image_path, os.R_OK):
+ raise ImageFormatError("KCHIMG0003E", {'filename':
image_path})
+ try:
+ roots = g.inspect_os()
+ except:
+ raise ImageFormatError("KCHIMG0001E")
+ if len(roots) == 0:
+ raise ImageFormatError("KCHIMG0002E")
+
+ for root in roots:
+ version = "%d.%d" % (g.inspect_get_major_version(root),
+ g.inspect_get_minor_version(root))
+ distro = "%s" % (g.inspect_get_distro(root))
+
+ return (distro, version)
+
+
+if __name__ == '__main__':
+ print probe_image(sys.argv[1])
--
1.8.3.2