Deploy source type images by default

Source images get the most test coverage, so it makes sense to deploy
these by default.

Change-Id: I8d0c8750e2c1600e84cc2e677a4eae0e9f502dac

ansible/group_vars/all.yml

@@ -45,7 +45,7 @@ config_strategy: "COPY_ALWAYS"
 # Valid options are ['centos', 'debian', 'rhel', 'ubuntu']
 kolla_base_distro: "centos"
 # Valid options are [ binary, source ]
-kolla_install_type: "binary"
+kolla_install_type: "source"
 
 kolla_internal_vip_address: "{{ kolla_internal_address | default('') }}"
 kolla_internal_fqdn: "{{ kolla_internal_vip_address }}"

doc/source/user/quickstart.rst

@@ -381,7 +381,7 @@ There are a few options that are required to deploy Kolla Ansible:
   binary
    using repositories like apt or dnf
 
-  source
+  source (default)
    using raw source archives, git repositories or local source directory
 
   .. note::

etc/kolla/globals.yml

@@ -31,7 +31,7 @@
 #kolla_base_distro: "centos"
 
 # Valid options are [ binary, source ]
-#kolla_install_type: "binary"
+#kolla_install_type: "source"
 
 # Do not override this unless you know what you are doing.
 #openstack_release: "master"

releasenotes/notes/default-type-source-3fefd8baa3ca46ba.yaml

@@ -0,0 +1,8 @@
+---
+upgrade:
+  - |
+    Updates the default image type to ``source``. Users wishing to deploy
+    ``binary`` type images should set ``kolla_install_type`` to ``binary`` in
+    ``globals.yml``. This change is to reflect the reality that source images
+    are tested more thoroughly and we (as OpenStack community) have better
+    control over them.