Comment 1 for bug 1775815

Hi,

During image build proxies can be configured as extended code block as defined in documentation https://docs.openstack.org/kolla/latest/admin/image-building.html#building-behind-a-proxy

or configure docker to add proxy settings https://docs.docker.com/network/proxy/#set-the-environment-variables-manually

or setting container_proxy to your docker_common_options https://github.com/openstack/kolla-ansible/blob/e88b9a7ad491e0c1b4575d1eb86d37e4e7cf55e7/ansible/group_vars/all.yml#L106