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Fix a potential bug in docker pull

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This commit is contained in:
Toshio Kuratomi 2015-03-15 11:22:07 -07:00
parent d65d04b3f8
commit b0d194ea94
1 changed files with 6 additions and 4 deletions
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10
cloud/docker/docker.py
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@ -1159,9 +1159,11 @@ class DockerManager(object):
except Exception as e:
self.module.fail_json(msg="failed to login to the remote registry, check your username/password.", error=repr(e))
try:
last = None
for line in self.client.pull(image, tag=tag, stream=True, **extra_params):
last = line
changes = list(self.client.pull(image, tag=tag, stream=True, **extra_params))
try:
last = changes[-1]
except IndexError:
last = '{}'
status = json.loads(last).get('status', '')
if status.startswith('Status: Image is up to date for'):
# Image is already up to date. Don't increment the counter.
@ -1171,7 +1173,7 @@ class DockerManager(object):
self.increment_counter('pulled')
else:
# Unrecognized status string.
self.module.fail_json(msg="Unrecognized status from pull.", status=status)
self.module.fail_json(msg="Unrecognized status from pull.", status=status, changes=changes)
except Exception as e:
self.module.fail_json(msg="Failed to pull the specified image: %s" % resource, error=repr(e))