Overcloud deployment fails with proxy in Red Hat OpenStack Platform 12

Issue

Disclaimer: Links contained herein to external website(s) are provided for convenience only. Red Hat has not reviewed the links and is not responsible for the content or its availability. The inclusion of any link to an external website does not imply endorsement by Red Hat of the website or their entities, products or services. You agree that Red Hat is not responsible or liable for any loss or expenses that may result due to your use of (or reliance on) the external site or content.

Overcloud deployment fails with proxy in Red Hat OpenStack Platform 12

Deployment fails due to an issue with docker pull:

(undercloud) [stack@undercloud-7 ~]$ openstack stack failures list overcloud --long
overcloud.AllNodesDeploySteps.ComputeDeployment_Step1.0:
  resource_type: OS::Heat::StructuredDeployment
  physical_resource_id: 910b06aa-505c-4e97-b386-348716668a7b
  status: CREATE_FAILED
  status_reason: |
    Error: resources[0]: Deployment to server failed: deploy_status_code : Deployment exited with non-zero status code: 2
  deploy_stdout: |

    PLAY [localhost] ***************************************************************
    (...)
            "2018-02-19 20:52:24,985 INFO: 18706 -- Removing container: docker-puppet-crond", 
            "2018-02-19 20:52:24,986 INFO: 18707 -- Removing container: docker-puppet-nova_libvirt", 
            "2018-02-19 20:52:25,109 INFO: 18705 -- Pulling image: registry.access.redhat.com/rhosp12/openstack-ceilometer-central:12.0-20180124.1", 
            "2018-02-19 20:52:25,111 INFO: 18706 -- Pulling image: registry.access.redhat.com/rhosp12/openstack-cron:12.0-20180124.1", 
            "2018-02-19 20:52:25,111 INFO: 18707 -- Pulling image: registry.access.redhat.com/rhosp12/openstack-nova-compute:12.0-20180124.1", 
            "2018-02-19 20:52:28,286 WARNING: 18706 -- docker pull failed: Get https://registry.access.redhat.com/v1/_ping: dial tcp 10.4.204.31:443: getsockopt: connection refused", 
            "2018-02-19 20:52:28,286 WARNING: 18706 -- retrying pulling image: registry.access.redhat.com/rhosp12/openstack-cron:12.0-20180124.1", 
            "2018-02-19 20:52:28,288 WARNING: 18705 -- docker pull failed: Get https://registry.access.redhat.com/v1/_ping: dial tcp 10.4.204.31:443: getsockopt: connection refused", 
            "2018-02-19 20:52:28,288 WARNING: 18705 -- retrying pulling image: registry.access.redhat.com/rhosp12/openstack-ceilometer-central:12.0-20180124.1", 
            "2018-02-19 20:52:28,289 WARNING: 18707 -- docker pull failed: Get https://registry.access.redhat.com/v1/_ping: dial tcp 10.4.204.31:443: getsockopt: connection refused", 
            "2018-02-19 20:52:28,290 WARNING: 18707 -- retrying pulling image: registry.access.redhat.com/rhosp12/openstack-nova-compute:12.0-20180124.1", 
            "2018-02-19 20:52:31,383 WARNING: 18707 -- docker pull failed: Get https://registry.access.redhat.com/v1/_ping: dial tcp 10.4.204.31:443: getsockopt: connection refused", 
            "2018-02-19 20:52:31,384 WARNING: 18707 -- retrying pulling image: registry.access.redhat.com/rhosp12/openstack-nova-compute:12.0-20180124.1", 
            "2018-02-19 20:52:33,401 WARNING: 18706 -- docker pull failed: Get https://registry.access.redhat.com/v1/_ping: dial tcp 10.4.204.31:443: getsockopt: connection refused", 
            "2018-02-19 20:52:33,401 WARNING: 18706 -- retrying pulling image: registry.access.redhat.com/rhosp12/openstack-cron:12.0-20180124.1", 
            "2018-02-19 20:52:34,403 WARNING: 18705 -- docker pull failed: Get https://registry.access.redhat.com/v1/_ping: dial tcp 10.4.204.31:443: getsockopt: connection refused", 
            "2018-02-19 20:52:34,403 WARNING: 18705 -- retrying pulling image: registry.access.redhat.com/rhosp12/openstack-ceilometer-central:12.0-20180124.1", 
            "2018-02-19 20:52:38,463 WARNING: 18707 -- docker pull failed: Get https://registry.access.redhat.com/v1/_ping: dial tcp 10.4.204.31:443: getsockopt: connection refused", 
            "2018-02-19 20:52:38,463 WARNING: 18707 -- retrying pulling image: registry.access.redhat.com/rhosp12/openstack-nova-compute:12.0-20180124.1", 
            "2018-02-19 20:52:39,472 WARNING: 18706 -- docker pull failed: Get https://registry.access.redhat.com/v1/_ping: dial tcp 10.4.204.31:443: getsockopt: connection refused", 
            "2018-02-19 20:52:39,473 WARNING: 18706 -- retrying pulling image: registry.access.redhat.com/rhosp12/openstack-cron:12.0-20180124.1", 
            "2018-02-19 20:52:40,483 WARNING: 18705 -- docker pull failed: Get https://registry.access.redhat.com/v1/_ping: dial tcp 10.4.204.31:443: getsockopt: connection refused", 
            "2018-02-19 20:52:40,483 WARNING: 18705 -- retrying pulling image: registry.access.redhat.com/rhosp12/openstack-ceilometer-central:12.0-20180124.1", 
            "2018-02-19 20:52:43,541 WARNING: 18706 -- docker pull failed: Get https://registry.access.redhat.com/v1/_ping: dial tcp 10.4.204.31:443: getsockopt: connection refused", 
            "2018-02-19 20:52:43,541 WARNING: 18706 -- retrying pulling image: registry.access.redhat.com/rhosp12/openstack-cron:12.0-20180124.1", 
            "2018-02-19 20:52:44,543 WARNING: 18707 -- docker pull failed: Get https://registry.access.redhat.com/v1/_ping: dial tcp 10.4.204.31:443: getsockopt: connection refused", 
            "2018-02-19 20:52:44,543 WARNING: 18707 -- retrying pulling image: registry.access.redhat.com/rhosp12/openstack-nova-compute:12.0-20180124.1", 
            "2018-02-19 20:52:46,567 WARNING: 18705 -- docker pull failed: Get https://registry.access.redhat.com/v1/_ping: dial tcp 10.4.204.31:443: getsockopt: connection refused", 
            "2018-02-19 20:52:46,568 WARNING: 18705 -- retrying pulling image: registry.access.redhat.com/rhosp12/openstack-ceilometer-central:12.0-20180124.1", 
            "2018-02-19 20:52:48,613 WARNING: 18706 -- docker pull failed: Get https://registry.access.redhat.com/v1/_ping: dial tcp 10.4.204.31:443: getsockopt: connection refused", 
            "2018-02-19 20:52:48,614 WARNING: 18706 -- retrying pulling image: registry.access.redhat.com/rhosp12/openstack-cron:12.0-20180124.1", 
            "2018-02-19 20:52:48,614 ERROR: 18706 -- Failed to pull image: registry.access.redhat.com/rhosp12/openstack-cron:12.0-20180124.1", 
            "2018-02-19 20:52:51,635 WARNING: 18707 -- docker pull failed: Get https://registry.access.redhat.com/v1/_ping: dial tcp 10.4.204.31:443: getsockopt: connection refused", 
            "2018-02-19 20:52:51,636 WARNING: 18707 -- retrying pulling image: registry.access.redhat.com/rhosp12/openstack-nova-compute:12.0-20180124.1", 
            "2018-02-19 20:52:51,636 ERROR: 18707 -- Failed to pull image: registry.access.redhat.com/rhosp12/openstack-nova-compute:12.0-20180124.1", 
            "2018-02-19 20:52:52,649 WARNING: 18705 -- docker pull failed: Get https://registry.access.redhat.com/v1/_ping: dial tcp 10.4.204.31:443: getsockopt: connection refused", 
            "2018-02-19 20:52:52,649 WARNING: 18705 -- retrying pulling image: registry.access.redhat.com/rhosp12/openstack-ceilometer-central:12.0-20180124.1", 
            "2018-02-19 20:52:52,649 ERROR: 18705 -- Failed to pull image: registry.access.redhat.com/rhosp12/openstack-ceilometer-central:12.0-20180124.1", 
            "2018-02-19 20:52:53,720 ERROR: 18705 -- Failed running docker-puppet.py for ceilometer", 
            "2018-02-19 20:52:53,720 ERROR: 18705 -- Unable to find image 'registry.access.redhat.com/rhosp12/openstack-ceilometer-central:12.0-20180124.1' locally", 
            "Trying to pull repository registry.access.redhat.com/rhosp12/openstack-ceilometer-central ... ", 
            "/usr/bin/docker-current: Get https://registry.access.redhat.com/v1/_ping: dial tcp 10.4.204.31:443: getsockopt: connection refused.", 
            "See '/usr/bin/docker-current run --help'.", 
            "2018-02-19 20:52:53,720 INFO: 18705 -- Finished processing puppet configs", 
            "2018-02-19 20:52:54,728 ERROR: 18706 -- Failed running docker-puppet.py for crond", 
            "2018-02-19 20:52:54,728 ERROR: 18706 -- Unable to find image 'registry.access.redhat.com/rhosp12/openstack-cron:12.0-20180124.1' locally", 
            "Trying to pull repository registry.access.redhat.com/rhosp12/openstack-cron ... ", 
            "2018-02-19 20:52:54,728 INFO: 18706 -- Finished processing puppet configs", 
            "2018-02-19 20:52:58,736 ERROR: 18707 -- Failed running docker-puppet.py for nova_libvirt", 
            "2018-02-19 20:52:58,736 ERROR: 18707 -- Unable to find image 'registry.access.redhat.com/rhosp12/openstack-nova-compute:12.0-20180124.1' locally", 
            "Trying to pull repository registry.access.redhat.com/rhosp12/openstack-nova-compute ... ", 
            "2018-02-19 20:52:58,736 INFO: 18707 -- Finished processing puppet configs", 
            "2018-02-19 20:52:58,737 ERROR: 18703 -- ERROR configuring ceilometer", 
            "2018-02-19 20:52:58,737 ERROR: 18703 -- ERROR configuring crond", 
            "2018-02-19 20:52:58,737 ERROR: 18703 -- ERROR configuring nova_libvirt"