TargetDiskBlobAlreadyExists on deploy (Azure)

[Aaron Bentley]

Juju may try to create a blob that already exists.

Long running operation terminated with status 'Failed': Code="TargetDiskBlobAlreadyExists"

As seen here:
http://reports.vapour.ws/releases/issue/57b34c86749a566b86e05401

2016-08-16 15:56:38 ERROR 2 is in state creating virtual machine "machine-2": creating virtual machine: compute.VirtualMachinesClient#CreateOrUpdate: Failure sending request: StatusCode=200 -- Original Error: Long running operation terminated with status 'Failed': Code="TargetDiskBlobAlreadyExists" Message="Blob https://b08rjuiy27ywfk1jbq879xko.blob.core.windows.net/osvhds/machine-2.vhd already exists. Please provide a different blob URI as target for disk 'machine-2'."
Traceback (most recent call last):
  File "/var/lib/jenkins/juju-ci-tools/deploy_stack.py", line 761, in runtime_context
    yield
  File "/var/lib/jenkins/juju-ci-tools/deploy_stack.py", line 859, in booted_context
    yield machines
  File "/var/lib/jenkins/juju-ci-tools/deploy_stack.py", line 916, in boot_context
    yield
  File "/var/lib/jenkins/juju-ci-tools/run_deployer.py", line 136, in main
    args, client, args.agent_timeout, args.workload_timeout)
  File "/var/lib/jenkins/juju-ci-tools/run_deployer.py", line 107, in assess_deployer
    client.wait_for_started(timeout=agent_timeout)
  File "/var/lib/jenkins/juju-ci-tools/jujupy.py", line 1431, in wait_for_started
    timeout=timeout, start=start)
  File "/var/lib/jenkins/juju-ci-tools/jujupy.py", line 1414, in _wait_for_status
    states = translate(status)
  File "/var/lib/jenkins/juju-ci-tools/jujupy.py", line 490, in check_agents_started
    raise ErroredUnit(entries[0], state)
ErroredUnit: 2 is in state creating virtual machine "machine-2": creating virtual machine: compute.VirtualMachinesClient#CreateOrUpdate: Failure sending request: StatusCode=200 -- Original Error: Long running operation terminated with status 'Failed': Code="TargetDiskBlobAlreadyExists" Message="Blob https://b08rjuiy27ywfk1jbq879xko.blob.core.windows.net/osvhds/machine-2.vhd already exists. Please provide a different blob URI as target for disk 'machine-2'."

[Anastasia (anastasia-macmood)]

This may have been fixed as ongoing Azure provider improvements - all failures occurred in August, with last one on Aug 24.

[Launchpad Janitor (janitor)]

[Expired for juju because there has been no activity for 60 days.]