Rework ignore_errors to report no reds

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>

roles/bootstrap-os/tasks/bootstrap-coreos.yml

@@ -2,7 +2,7 @@
 - name: Bootstrap | Check if bootstrap is needed
   raw: stat /opt/bin/.bootstrapped
   register: need_bootstrap
-  ignore_errors: True
+  failed_when: false
   tags: facts
 
 - name: Bootstrap | Run bootstrap.sh
@@ -16,7 +16,7 @@
 - name: Bootstrap | Check if we need to install pip
   shell: "{{ansible_python_interpreter}} -m pip --version"
   register: need_pip
-  ignore_errors: True
+  failed_when: false
   changed_when: false
   when: (need_bootstrap | failed)
   tags: facts

roles/bootstrap-os/tasks/bootstrap-ubuntu.yml

@@ -4,7 +4,7 @@
 - name: Bootstrap | Check if bootstrap is needed
   raw: which python
   register: need_bootstrap
-  ignore_errors: True
+  failed_when: false
   tags: facts
 
 - name: Bootstrap | Install python 2.x