Switch trunk/cbs/buildlogs to use https

There is a permanent redirection from http to https in buildlogs, cbs
and trunk repos that might create issues when the redirection fails for
some reasons.
Let's use https directly.

Change-Id: I15b2df335b4b9331466da2f7cb6e838823a6fd34

doc/image-building.rst

@@ -382,7 +382,7 @@ form of ``.repo``, ``.rpm``, or a url. See examples below.
 
 Update ``rpm_setup_config`` in ``/etc/kolla/kolla-build.conf``::
 
-    rpm_setup_config = http://trunk.rdoproject.org/centos7/currrent/delorean.repo,http://trunk.rdoproject.org/centos7/delorean-deps.repo
+    rpm_setup_config = https://trunk.rdoproject.org/centos7/currrent/delorean.repo,https://trunk.rdoproject.org/centos7/delorean-deps.repo
 
 If specifying a ``.repo`` file, each ``.repo`` file will need to exist in the
 same directory as the base Dockerfile (``kolla/docker/base``)::

docker/base/Dockerfile.j2

@@ -145,7 +145,7 @@ RUN yum -y install \
         yum-utils \
         https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm \
     && rpm -Uvh --nodeps \
-        http://buildlogs.centos.org/centos/7/cloud/x86_64/openstack-mitaka/centos-release-openstack-mitaka-1-3.el7.noarch.rpm \
+        https://buildlogs.centos.org/centos/7/cloud/x86_64/openstack-mitaka/centos-release-openstack-mitaka-1-3.el7.noarch.rpm \
         http://mirror.centos.org/centos-7/7/extras/x86_64/Packages/centos-release-ceph-jewel-1.0-1.el7.centos.noarch.rpm \
         http://mirror.centos.org/centos-7/7/extras/x86_64/Packages/centos-release-qemu-ev-1.0-1.el7.noarch.rpm \
         http://mirror.centos.org/centos-7/7/extras/x86_64/Packages/centos-release-virt-common-1-1.el7.centos.noarch.rpm \

kolla/common/config.py

@@ -26,10 +26,10 @@
     'debian': '8',
     'ubuntu': '16.04',
 }
-DELOREAN = ("http://buildlogs.centos.org/centos/7/cloud/x86_64/"
+DELOREAN = ("https://buildlogs.centos.org/centos/7/cloud/x86_64/"
             "rdo-trunk-master-tested/delorean.repo")
 # TODO(pbourke): update to buildlogs.centos.org once this moves
-DELOREAN_DEPS = "http://trunk.rdoproject.org/centos7/delorean-deps.repo"
+DELOREAN_DEPS = "https://trunk.rdoproject.org/centos7/delorean-deps.repo"
 INSTALL_TYPE_CHOICES = ['binary', 'source', 'rdo', 'rhos']
 
 TARBALLS_BASE = "http://tarballs.openstack.org"