fix: Swap kubespray-defaults & boostrap-os (#11441)

- Execute boostrap-os before so that Python is installed for kubespray-defaults
- Remove outdated kubespray-defaults dependency on boostrap-os

docs/operating_systems/bootstrap-os.md

@@ -40,10 +40,6 @@ Variables are listed with their default values, if applicable.
 * `centos_fastestmirror_enabled: false`
   Whether the [fastestmirror](https://wiki.centos.org/PackageManagement/Yum/FastestMirror) yum plugin should be enabled.
 
-## Dependencies
-
-The `kubespray-defaults` role is expected to be run before this role.
-
 ## Example Playbook
 
 Remember to disable fact gathering since Python might not be present on hosts.

playbooks/facts.yml

@@ -10,8 +10,8 @@
     # fail. bootstrap-os fixes this on these systems, so in later plays it can be enabled.
     ansible_ssh_pipelining: false
   roles:
-    - { role: kubespray-defaults }
     - { role: bootstrap-os, tags: bootstrap-os}
+    - { role: kubespray-defaults }
 
 - name: Gather facts
   hosts: k8s_cluster:etcd:calico_rr

roles/kubespray-defaults/tasks/main.yaml

 ---
 - name: Set facts variables
-  # do not run gather facts when bootstrap-os in roles
-  when: >
-        ansible_play_role_names |
-        intersect(['bootstrap-os', 'kubernetes_sigs.kubespray.bootstrap-os']) |
-        length == 0
   tags:
     - always
   block: