Support regional S3 access

[Richard Hughes]

I like in the UK, and need to use the --s3-european-buckets option to duplicity. I would love to use deja-dup, but this option can't be passed as an environment variable and there's no checkbox in the UI. One checkbox and one option would make my life much easier. Thanks!

[Michael Terry (mterry)]

There's now also an Asian (Singapore) region.

[exactt (giesbert)]

as this option is only required upon creation of the bucket it would be useful to be able to either set the name of a pre-existing bucket or be asked upon creation of the bucket by deja dup.

looking forward to see either option implemented. thx for the great tool!

[Craig Loftus (craigloftus)]

Manually setting the bucket name to one you've created within AWS with the correct region seems to work fine and is a relatively simple hack. I was inspired by the answer to question 81409 [1], the required dconf command is below and more details were an excuse for a blog post [2].

$ dconf write /org/gnome/deja-dup/s3/bucket \'bucket-name\'

[1] https://answers.launchpad.net/deja-dup/+question/81409
[2] http://craigloftus.net/blog/2011/10/13/changing-the-s3-bucket-region-with-deja-dup/

[Robert Falkowitz (jcarberry)]

Although this is an old thread, the issue still exists.
I can do a backup using deja-dup to a bucket created by deja-dup in the US East region.
However, I want the backup to be in a bucket I created previously in the Europe West region. If I change the bucket name as per Craig Loftus' remarks above, the backup fails with the following messages:

Traceback (most recent call last):
  File "/usr/bin/duplicity", line 1532, in <module>
    with_tempdir(main)
  File "/usr/bin/duplicity", line 1526, in with_tempdir
    fn()
  File "/usr/bin/duplicity", line 1364, in main
    action = commandline.ProcessCommandLine(sys.argv[1:])
  File "/usr/lib/python2.7/dist-packages/duplicity/commandline.py", line 1108, in ProcessCommandLine
    globals.backend = backend.get_backend(args[0])
  File "/usr/lib/python2.7/dist-packages/duplicity/backend.py", line 223, in get_backend
    obj = get_backend_object(url_string)
  File "/usr/lib/python2.7/dist-packages/duplicity/backend.py", line 209, in get_backend_object
    return factory(pu)
  File "/usr/lib/python2.7/dist-packages/duplicity/backends/_boto_single.py", line 161, in __init__
    self.resetConnection()
  File "/usr/lib/python2.7/dist-packages/duplicity/backends/_boto_single.py", line 187, in resetConnection
    if "NoSuchBucket" in e.error_code:
AttributeError: 'CertificateError' object has no attribute 'error_code'

And yet, that bucket exists and the credentials being used are for an account that has full rights to that bucket.

[Saket Srivastava (sakbhav)]

This patch should fix the certificate issue and add a field to configure S3 bucket. Basically replacing the url with s3://<s3 host>/<bucket>/<folder> instead of http+s3://<bucket>/<folder> works.