Replace references to Docker Hub by Quay.io

Kolla Ansible uses Quay.io as its default registry.

Change-Id: Ie1a56ebd6fe3283a2b5b077f658ff1cf3e006784

doc/source/configuration/reference/kolla-ansible.rst

@@ -120,7 +120,7 @@ accessed.
     ``kolla_base_distro``.
 ``kolla_docker_registry``
     URL of docker registry to use for Kolla images. Default is not set, in
-    which case Dockerhub will be used.
+    which case Quay.io will be used.
 ``kolla_docker_registry_insecure``
     Whether docker should be configured to use an insecure registry for Kolla
     images. Default is false, unless ``docker_registry_enabled`` is true and

doc/source/deployment.rst

@@ -140,10 +140,10 @@ Building Container Images
 .. note::
 
    It is possible to use prebuilt container images from an image registry such
-   as Dockerhub.  In this case, this step can be skipped.
+   as Quay.io.  In this case, this step can be skipped.
 
 It is possible to use prebuilt container images from an image registry such as
-Dockerhub.  In some cases it may be necessary to build images locally either to
+Quay.io.  In some cases it may be necessary to build images locally either to
 apply local image customisation or to use a downstream version of kolla.
 Images are built by hosts in the ``container-image-builders`` group, which by
 default includes the ``seed``.
@@ -515,7 +515,7 @@ Building Container Images
 .. note::
 
    It is possible to use prebuilt container images from an image registry such
-   as Dockerhub.  In this case, this step can be skipped.
+   as Quay.io.  In this case, this step can be skipped.
 
 In some cases it may be necessary to build images locally either to apply local
 image customisation or to use a downstream version of kolla.  Images are built
@@ -547,12 +547,12 @@ Pulling Container Images
 .. note::
 
    It is possible to build container images locally avoiding the need for an
-   image registry such as Dockerhub.  In this case, this step can be skipped.
+   image registry such as Quay.io.  In this case, this step can be skipped.
 
-In most cases suitable prebuilt kolla images will be available on Dockerhub.
-The `kolla account <https://hub.docker.com/u/kolla>`_ provides image
-repositories suitable for use with kayobe and will be used by default.  To
-pull images from the configured image registry::
+In most cases suitable prebuilt kolla images will be available on Quay.io. The
+`openstack.kolla organisation <https://quay.io/organization/openstack.kolla>`_
+provides image repositories suitable for use with kayobe and will be used by
+default. To pull images from the configured image registry::
 
     (kayobe) $ kayobe overcloud container image pull
 

doc/source/upgrading.rst

@@ -267,7 +267,7 @@ Building Container Images
 .. note::
 
    It is possible to use prebuilt container images from an image registry such
-   as Dockerhub.  In this case, this step can be skipped.
+   as Quay.io.  In this case, this step can be skipped.
 
 In some cases it may be necessary to build images locally either to apply local
 image customisation or to use a downstream version of kolla.  To build images
@@ -381,7 +381,7 @@ Building Container Images
 .. note::
 
    It is possible to use prebuilt container images from an image registry such
-   as Dockerhub.  In this case, this step can be skipped.
+   as Quay.io.  In this case, this step can be skipped.
 
 In some cases it may be necessary to build images locally either to apply local
 image customisation or to use a downstream version of kolla.  To build images
@@ -403,12 +403,12 @@ Pulling Container Images
 .. note::
 
    It is possible to build container images locally avoiding the need for an
-   image registry such as Dockerhub.  In this case, this step can be skipped.
+   image registry such as Quay.io.  In this case, this step can be skipped.
 
-In most cases suitable prebuilt kolla images will be available on Dockerhub.
-The `kolla account <https://hub.docker.com/u/kolla>`_ provides image
-repositories suitable for use with kayobe and will be used by default.  To
-pull images from the configured image registry::
+In most cases suitable prebuilt kolla images will be available on Quay.io. The
+`openstack.kolla organisation <https://quay.io/organization/openstack.kolla>`_
+provides image repositories suitable for use with kayobe and will be used by
+default. To pull images from the configured image registry::
 
     (kayobe) $ kayobe overcloud container image pull
 

etc/kayobe/kolla.yml

@@ -79,7 +79,7 @@
 #kolla_base_distro_version:
 
 # URL of docker registry to use for Kolla images. Default is not set, in which
-# case Dockerhub will be used.
+# case Quay.io will be used.
 #kolla_docker_registry:
 
 # Docker namespace to use for Kolla images. Default is 'kolla'.