Remove non-kubeadm deployment (#3811)

* Remove non-kubeadm deployment

* More cleanup

* More cleanup

* More cleanup

* More cleanup

* Fix gitlab

* Try stop gce first before absent to make the delete process work

* More cleanup

* Fix bug with checking if kubeadm has already run

* Fix bug with checking if kubeadm has already run

* More fixes

* Fix test

* fix

* Fix gitlab checkout untill kubespray 2.8 is on quay

* Fixed

* Add upgrade path from non-kubeadm to kubeadm. Revert ssl path

* Readd secret checking

* Do gitlab checks from v2.7.0 test upgrade path to 2.8.0

* fix typo

* Fix CI jobs to kubeadm again. Fix broken hyperkube path

* Fix gitlab

* Fix rotate tokens

* More fixes

* More fixes

* Fix tokens

roles/kubernetes/preinstall/tasks/0020-verify-settings.yml

@@ -44,7 +44,6 @@
     msg: "{{item.value}} isn't a bool"
   run_once: yes
   with_items:
-    - { name: kubeadm_enabled, value: "{{ kubeadm_enabled }}" }
     - { name: download_run_once, value: "{{ download_run_once }}" }
     - { name: deploy_netchecker, value: "{{ deploy_netchecker }}" }
     - { name: download_always_pull, value: "{{ download_always_pull }}" }
@@ -141,6 +140,8 @@
   register: calico_version_on_server
   run_once: yes
   delegate_to: "{{ groups['kube-master'][0] }}"
+  when:
+    - kube_network_plugin == 'calico'
 
 - name: "Check that calico version is enough for upgrade"
   assert:
@@ -148,6 +149,7 @@
       - calico_version_on_server.stdout is version('v2.6.5', '>=')
     msg: "Your version of calico is not fresh enough for upgrade. Minimum version v2.6.5"
   when:
+    - kube_network_plugin == 'calico'
     - 'calico_version_on_server.stdout is defined'
     - 'calico_version_on_server.stdout != ""'
     - inventory_hostname == groups['kube-master'][0]

roles/kubernetes/preinstall/tasks/0040-set_facts.yml

@@ -170,7 +170,6 @@
   set_fact:
     kube_proxy_mode: 'ipvs'
   when:
-    - kubeadm_enabled
     - kube_proxy_remove
   tags:
     - facts