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authorBoris Filippov <bfilippov@griddynamics.com>2012-09-26 04:45:07 +0400
committerBoris Filippov <bfilippov@griddynamics.com>2012-10-10 19:27:07 +0400
commit477549488ee8e2bf3bfa545ddb2bffe8b7be33bc (patch)
tree2b74e2f717034d9b8a5e8ccb04801d3555fd1fa1 /nova
parent800c08dfe36de52429364f96d708fb3bba0c4e3b (diff)
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Add util for image conversion
blueprint snapshots-for-everyone Add nova.virt.images.convert_image(source, dest, format) that converts image to other format using qemu-img convert Change-Id: I2c92cb31114c42717d0ddd011645dc7c661c82c6
Diffstat (limited to 'nova')
-rw-r--r--nova/virt/images.py9
1 files changed, 7 insertions, 2 deletions
diff --git a/nova/virt/images.py b/nova/virt/images.py
index 9f53af645..d94a1aeba 100644
--- a/nova/virt/images.py
+++ b/nova/virt/images.py
@@ -60,6 +60,12 @@ def qemu_img_info(path):
return data
+def convert_image(source, dest, out_format):
+ """Convert image to other format"""
+ cmd = ('qemu-img', 'convert', '-O', out_format, source, dest)
+ utils.execute(*cmd)
+
+
def fetch(context, image_href, path, _user_id, _project_id):
# TODO(vish): Improve context handling and add owner and auth data
# when it is added to glance. Right now there is no
@@ -94,8 +100,7 @@ def fetch_to_raw(context, image_href, path, user_id, project_id):
staged = "%s.converted" % path
LOG.debug("%s was %s, converting to raw" % (image_href, fmt))
with utils.remove_path_on_error(staged):
- utils.execute('qemu-img', 'convert', '-O', 'raw', path_tmp,
- staged)
+ convert_image(path_tmp, staged, 'raw')
data = qemu_img_info(staged)
if data.get('file format') != "raw":