python-glanceclient ftbfs in focal

seen in the second focal test rebuild
https://launchpad.net/ubuntu/+archive/test-rebuild-20200327-focal/+build/18963677/+files/buildlog_ubuntu-focal-amd64.python-glanceclient_1%3A2.17.0-0ubuntu2_BUILDING.txt.gz

During handling of the above exception, another exception occurred:

    Traceback (most recent call last):

      File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 665, in urlopen
    httplib_response = self._make_request(

      File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 376, in _make_request
    self._validate_conn(conn)

      File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 996, in _validate_conn
    conn.connect()

      File "/usr/lib/python3/dist-packages/urllib3/connection.py", line 352, in connect
    self.sock = ssl_wrap_socket(

      File "/usr/lib/python3/dist-packages/urllib3/util/ssl_.py", line 383, in ssl_wrap_socket
    return context.wrap_socket(sock)

      File "/usr/lib/python3/dist-packages/urllib3/contrib/pyopenssl.py", line 491, in wrap_socket
    raise ssl.SSLError("bad handshake: %r" % e)

    ssl.SSLError: ("bad handshake: SysCallError(-1, 'Unexpected EOF')",)

During handling of the above exception, another exception occurred:

    Traceback (most recent call last):

      File "/usr/lib/python3/dist-packages/requests/adapters.py", line 439, in send
    resp = conn.urlopen(

      File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 719, in urlopen
    retries = retries.increment(

      File "/usr/lib/python3/dist-packages/urllib3/util/retry.py", line 436, in increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))

    urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='0.0.0.0', port=45175): Max retries exceeded with url: /v2/images/image123 (Caused by SSLError(SSLError("bad handshake: SysCallError(-1, 'Unexpected EOF')")))

During handling of the above exception, another exception occurred:

    Traceback (most recent call last):

      File "/<<PKGBUILDDIR>>/glanceclient/common/http.py", line 269, in _request
    resp = self.session.request(method,

      File "/usr/lib/python3/dist-packages/requests/sessions.py", line 533, in request
    resp = self.send(prep, **send_kwargs)

      File "/usr/lib/python3/dist-packages/requests/sessions.py", line 646, in send
    r = adapter.send(request, **kwargs)

      File "/usr/lib/python3/dist-packages/requests/adapters.py", line 514, in send
    raise SSLError(e, request=request)

    requests.exceptions.SSLError: HTTPSConnectionPool(host='0.0.0.0', port=45175): Max retries exceeded with url: /v2/images/image123 (Caused by SSLError(SSLError("bad handshake: SysCallError(-1, 'Unexpected EOF')")))

During handling of the above exception, another exception occurred:

    Traceback (most recent call last):

      File "/<<PKGBUILDDIR>>/glanceclient/tests/unit/test_ssl.py", line 124, in test_v2_requests_cert_verification
    gc.images.get('image123')

      File "/<<PKGBUILDDIR>>/glanceclient/v2/images.py", line 198, in get
    return self._get(image_id)

      File "/<<PKGBUILDDIR>>/glanceclient/common/utils.py", line 598, in inner
    return RequestIdProxy(wrapped(*args, **kwargs))

      File "/<<PKGBUILDDIR>>/glanceclient/v2/images.py", line 191, in _get
    resp, body = self.http_client.get(url, headers=header)

      File "/<<PKGBUILDDIR>>/glanceclient/common/http.py", line 315, in get
    return self._request('GET', url, **kwargs)

      File "/<<PKGBUILDDIR>>/glanceclient/common/http.py", line 282, in _request
    raise exc.CommunicationError(message=message)

    glanceclient.exc.CommunicationError: Error finding address for https://0.0.0.0:45175/v2/images/image123: HTTPSConnectionPool(host='0.0.0.0', port=45175): Max retries exceeded with url: /v2/images/image123 (Caused by SSLError(SSLError("bad handshake: SysCallError(-1, 'Unexpected EOF')")))

During handling of the above exception, another exception occurred:

    Traceback (most recent call last):

      File "/usr/lib/python3/dist-packages/mock/mock.py", line 1330, in patched
    return func(*args, **keywargs)

      File "/<<PKGBUILDDIR>>/glanceclient/tests/unit/test_ssl.py", line 128, in test_v2_requests_cert_verification
    self.fail('No certificate failure message is received')

      File "/usr/lib/python3/dist-packages/unittest2/case.py", line 690, in fail
    raise self.failureException(msg)

    AssertionError: No certificate failure message is received

======
Totals
======
Ran: 635 tests in 1.7474 sec.
 - Passed: 623
 - Skipped: 7
 - Expected Fail: 0
 - Unexpected Success: 0
 - Failed: 5
Sum of execute time for each test: 5.8393 sec.

==============
Worker Balance
==============
 - Worker 0 (159 tests) => 0:00:01.182108
 - Worker 1 (159 tests) => 0:00:01.607279
 - Worker 2 (159 tests) => 0:00:01.570729
 - Worker 3 (158 tests) => 0:00:01.650056
make[1]: *** [debian/rules:24: override_dh_auto_test] Error 1
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
make: *** [debian/rules:6: build] Error 2