Change the default image to a DIB-built one

We should use production-friendly defaults. TinyIPA is not suitable for
real bare metal.

Change-Id: Ifcba626ba898bde443674beacd4417d2fe876bf4

doc/source/user/troubleshooting.rst

@@ -162,7 +162,10 @@ Changing from TinyIPA to another IPA Image
 With-in the Newton cycle, the default IPA image for Bifrost was changed
 to TinyIPA, which is based on Tiny Core Linux. This has a greatly reduced
 boot time for testing, however should be expected to have less hardware
-support. If on a fresh install, or a re-install, you wish to change to
+support. In the Yoga cycle, the default image was changed to one based
+on CentOS.
+
+If on a fresh install, or a re-install, you wish to change to
 DIB-based or any other IPA image, you will need to take the following steps:
 
 #. Remove the existing IPA image ipa.kernel and ipa.initramfs.

playbooks/roles/bifrost-ironic-install/defaults/main.yml

@@ -70,7 +70,7 @@ firewalld_internal_zone: bifrost
 ipa_file_protocol: "http"
 
 ipa_upstream_release: "master"
-use_tinyipa: true
+use_tinyipa: false
 
 enable_uefi_ipxe: true
 ipxe_efi_binary: ipxe.efi

releasenotes/notes/no-tinyipa-8d18f3b21dbb9fe9.yaml

@@ -0,0 +1,10 @@
+---
+upgrade:
+  - |
+    TinyIPA (an IPA image based on TinyCoreLinux) is no longer used by default.
+    Instead, a CentOS image `published by the Ironic community
+    <https://tarballs.opendev.org/openstack/ironic-python-agent/dib/files/>`_
+    is used, unless ``use_tinyipa`` is set to ``true``.
+
+    The TinyIPA image is much lighter, but is not suitable for real bare metal
+    machines because of lack of drivers.

scripts/test-bifrost.sh

@@ -195,6 +195,7 @@ ${ANSIBLE} -vvvv \
     -i inventory/target \
     ${TEST_PLAYBOOK} \
     -e use_cirros=${USE_CIRROS} \
+    -e use_tinyipa=true \
     -e testing_user=${TESTING_USER} \
     -e test_vm_num_nodes=${TEST_VM_NUM_NODES} \
     -e inventory_dhcp=${INVENTORY_DHCP} \