[bootstrap] feat: target cluster ansible plays only to kubernetes in case other hosts are used (#1065)

bootstrap/templates/ansible/playbooks/cluster-installation.yaml.j2

@@ -1,7 +1,7 @@
 #jinja2: trim_blocks: True, lstrip_blocks: True
 ---
 - name: Cluster Installation
-  hosts: all
+  hosts: kubernetes
   become: true
   gather_facts: true
   any_errors_fatal: true

bootstrap/templates/ansible/playbooks/cluster-nuke.yaml.j2

@@ -1,6 +1,6 @@
 ---
 - name: Cluster Nuke
-  hosts: all
+  hosts: kubernetes
   become: true
   gather_facts: true
   any_errors_fatal: true

bootstrap/templates/ansible/playbooks/cluster-prepare.yaml.j2

@@ -1,6 +1,6 @@
 ---
 - name: Prepare System
-  hosts: all
+  hosts: kubernetes
   become: true
   gather_facts: true
   any_errors_fatal: true

bootstrap/templates/ansible/playbooks/cluster-reboot.yaml.j2

@@ -1,6 +1,6 @@
 ---
 - name: Reboot
-  hosts: all
+  hosts: kubernetes
   become: true
   gather_facts: true
   any_errors_fatal: true

bootstrap/templates/ansible/playbooks/cluster-rollout-update.yaml.j2

@@ -1,7 +1,7 @@
 ---
 # https://github.com/kevincoakley/ansible-role-k8s-rolling-update
 - name: Cluster rollout update
-  hosts: all
+  hosts: kubernetes
   become: true
   gather_facts: true
   any_errors_fatal: true