Nightly Signature Tets Failing with gpg error

[bmbouter]

The nightlies are failing (and maybe all PRs) with:

devel/pulp_ansible/pulp_ansible/tests/functional/api/collection/test_signatures.py::CRUDCollectionVersionSignatures::test_00_create_signed_collections ERROR                                                                                                                                                           [ 14%]
devel/pulp_ansible/pulp_ansible/tests/functional/api/collection/test_signatures.py::CRUDCollectionVersionSignatures::test_01_upload_signed_collections ERROR                                                                                                                                                           [ 15%]
devel/pulp_ansible/pulp_ansible/tests/functional/api/collection/test_signatures.py::CRUDCollectionVersionSignatures::test_02_read_signed_collection ERROR                                                                                                                                                              [ 16%]
devel/pulp_ansible/pulp_ansible/tests/functional/api/collection/test_signatures.py::CRUDCollectionVersionSignatures::test_03_read_signed_collections ERROR                                                                                                                                                             [ 17%]
devel/pulp_ansible/pulp_ansible/tests/functional/api/collection/test_signatures.py::CRUDCollectionVersionSignatures::test_04_partially_update ERROR                                                                                                                                                                    [ 18%]
devel/pulp_ansible/pulp_ansible/tests/functional/api/collection/test_signatures.py::CRUDCollectionVersionSignatures::test_05_fully_update ERROR                                                                                                                                                                        [ 18%]
devel/pulp_ansible/pulp_ansible/tests/functional/api/collection/test_signatures.py::CRUDCollectionVersionSignatures::test_06_delete ERROR                                                                                                                                                                              [ 19%]
devel/pulp_ansible/pulp_ansible/tests/functional/api/collection/test_signatures.py::CRUDCollectionVersionSignatures::test_07_duplicate ERROR                                                                                                                                                                           [ 20%]
devel/pulp_ansible/pulp_ansible/tests/functional/api/collection/test_signatures.py::CollectionSignatureSyncing::test_sync_signatures ERROR                                                                                                                                                                             [ 21%]
devel/pulp_ansible/pulp_ansible/tests/functional/api/collection/test_signatures.py::CollectionSignatureSyncing::test_sync_signatures_only ERROR

When I run one of those tests locally with:

pytest -v -r sx --color=yes devel/pulp_ansible/pulp_ansible/tests/functional/api/collection/test_signatures.py::CRUDCollectionVersionSignatures::test_00_create_signed_collections I receive the error:

E           pulp_smash.exceptions.CalledProcessError: Command ('pulpcore-manager', 'add-signing-service', '52da071a-3d70-48ea-bce7-479da84c6eaa', '/var/lib/pulp/sign-metadata.sh', 'Pulp QE') returned non-zero exit status 1.
E           
E           stdout: 
E           
E           stderr: pulp [None]: gnupg:WARNING: gpg returned a non-zero error code: 2
E           CommandError: There are 0 keys matching the key id.