Configure a credential helper to remove this warning. See
https://docs.docker.com/engine/reference/commandline/login/#credentials-store

+ docker pull openmrs/openmrs-reference-application@sha256:21060ddabc5f1542095b028a7dd0a632f9c25188e4f90207b7adcbf1adeeff55
+ docker tag openmrs/openmrs-reference-application@sha256:21060ddabc5f1542095b028a7dd0a632f9c25188e4f90207b7adcbf1adeeff55 openmrs/openmrs-reference-application:qa
+ docker push openmrs/openmrs-reference-application:qa
+ ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null bamboo@qa-refapp.openmrs.org sudo deploy-compose qa-refapp
Warning: Permanently added 'qa-refapp.openmrs.org' (ED25519) to the list of known hosts.
The OPENMRS_DB_URL variable is not set. Defaulting to a blank string.
Pulling openmrs-referenceapplication-mysql ...
Pulling openmrs-referenceapplication       ...
Pulling openmrs-referenceapplication-mysql ... pulling from library/mysql
Pulling openmrs-referenceapplication-mysql ... digest: sha256:20575ecebe6216036d...
Pulling openmrs-referenceapplication-mysql ... status: image is up to date for m...
Pulling openmrs-referenceapplication-mysql ... done
Pulling openmrs-referenceapplication       ... pulling from openmrs/openmrs-refe...
Pulling openmrs-referenceapplication       ... already exists
Pulling openmrs-referenceapplication       ... already exists
Pulling openmrs-referenceapplication       ... already exists
Pulling openmrs-referenceapplication       ... already exists
Pulling openmrs-referenceapplication       ... already exists
Pulling openmrs-referenceapplication       ... already exists
Pulling openmrs-referenceapplication       ... already exists
Pulling openmrs-referenceapplication       ... already exists
Pulling openmrs-referenceapplication       ... already exists
Pulling openmrs-referenceapplication       ... already exists
Pulling openmrs-referenceapplication       ... already exists
Pulling openmrs-referenceapplication       ... already exists
Pulling openmrs-referenceapplication       ... already exists
Pulling openmrs-referenceapplication       ... already exists
Pulling openmrs-referenceapplication       ... pulling fs layer
Pulling openmrs-referenceapplication       ... pulling fs layer
Pulling openmrs-referenceapplication       ... pulling fs layer
Pulling openmrs-referenceapplication       ... pulling fs layer
Pulling openmrs-referenceapplication       ... waiting
Pulling openmrs-referenceapplication       ... downloading (96.1%)
Pulling openmrs-referenceapplication       ... downloading (100.0%)
Pulling openmrs-referenceapplication       ... verifying checksum
Pulling openmrs-referenceapplication       ... download complete
Pulling openmrs-referenceapplication       ... downloading (0.5%)
Pulling openmrs-referenceapplication       ... downloading (0.7%)
Pulling openmrs-referenceapplication       ... downloading (16.2%)
Pulling openmrs-referenceapplication       ... downloading (23.0%)
Pulling openmrs-referenceapplication       ... downloading (1.1%)
Pulling openmrs-referenceapplication       ... verifying checksum
Pulling openmrs-referenceapplication       ... download complete
Pulling openmrs-referenceapplication       ... downloading (31.9%)
Pulling openmrs-referenceapplication       ... downloading (46.0%)
Pulling openmrs-referenceapplication       ... downloading (49.1%)
Pulling openmrs-referenceapplication       ... downloading (68.3%)
Pulling openmrs-referenceapplication       ... downloading (64.8%)
Pulling openmrs-referenceapplication       ... downloading (91.3%)
Pulling openmrs-referenceapplication       ... verifying checksum
Pulling openmrs-referenceapplication       ... download complete
Pulling openmrs-referenceapplication       ... downloading (80.1%)
Pulling openmrs-referenceapplication       ... extracting (0.7%)
Pulling openmrs-referenceapplication       ... downloading (93.3%)
Pulling openmrs-referenceapplication       ... extracting (25.2%)
Pulling openmrs-referenceapplication       ... verifying checksum
Pulling openmrs-referenceapplication       ... download complete
Pulling openmrs-referenceapplication       ... extracting (54.5%)
Pulling openmrs-referenceapplication       ... extracting (85.3%)
Pulling openmrs-referenceapplication       ... extracting (100.0%)
Pulling openmrs-referenceapplication       ... pull complete
Pulling openmrs-referenceapplication       ... extracting (100.0%)
Pulling openmrs-referenceapplication       ... extracting (100.0%)
Pulling openmrs-referenceapplication       ... pull complete
Pulling openmrs-referenceapplication       ... extracting (0.5%)
Pulling openmrs-referenceapplication       ... extracting (18.3%)
Pulling openmrs-referenceapplication       ... extracting (38.1%)
Pulling openmrs-referenceapplication       ... extracting (57.9%)
Pulling openmrs-referenceapplication       ... extracting (76.2%)
Pulling openmrs-referenceapplication       ... extracting (93.9%)
Pulling openmrs-referenceapplication       ... extracting (100.0%)
Pulling openmrs-referenceapplication       ... pull complete
Pulling openmrs-referenceapplication       ... extracting (3.0%)
Pulling openmrs-referenceapplication       ... extracting (100.0%)
Pulling openmrs-referenceapplication       ... extracting (100.0%)
Pulling openmrs-referenceapplication       ... pull complete
Pulling openmrs-referenceapplication       ... digest: sha256:893a1b3f172e93d1af...
Pulling openmrs-referenceapplication       ... status: downloaded newer image fo...
Pulling openmrs-referenceapplication       ... done
The OPENMRS_DB_URL variable is not set. Defaulting to a blank string.
Stopping qa-refapp_openmrs-referenceapplication_1       ...
Stopping qa-refapp_openmrs-referenceapplication-mysql_1 ...
Stopping qa-refapp_openmrs-referenceapplication_1       ... done
Stopping qa-refapp_openmrs-referenceapplication-mysql_1 ... done
Removing qa-refapp_openmrs-referenceapplication_1       ...
Removing qa-refapp_openmrs-referenceapplication-mysql_1 ...
Removing qa-refapp_openmrs-referenceapplication-mysql_1 ... done
Removing qa-refapp_openmrs-referenceapplication_1       ... done
Removing network qa-refapp_default
Removing volume qa-refapp_openmrs-referenceapplication-mysql-data
The OPENMRS_DB_URL variable is not set. Defaulting to a blank string.
Creating network "qa-refapp_default" with the default driver
Creating volume "qa-refapp_openmrs-referenceapplication-mysql-data" with default driver
Creating qa-refapp_openmrs-referenceapplication-mysql_1 ...
Creating qa-refapp_openmrs-referenceapplication-mysql_1 ... done
Creating qa-refapp_openmrs-referenceapplication_1       ...
Creating qa-refapp_openmrs-referenceapplication_1       ... done