Assert if ansible 2.7 is used (#3589)

README.md

@@ -19,6 +19,12 @@ To deploy the cluster you can use :
 
 ### Ansible
 
+#### Ansible version
+
+Ansible v2.7.0 is failing and/or produce unexpected results due to [ansible/ansible/issues/46600](https://github.com/ansible/ansible/issues/46600)
+
+#### Usage
+
     # Install dependencies from ``requirements.txt``
     sudo pip install -r requirements.txt
 

cluster.yml

 ---
+- hosts: localhost
+  tasks:
+    - name: Check ansible version <2.7
+      assert:
+        msg: "Ansible V2.7.0 can't be used until: https://github.com/ansible/ansible/issues/46600 is fixed"
+        that:
+          - ansible_version.string is version("2.7.0", "<")
+          - ansible_version.string is version("2.5.0", ">=")
+      tags:
+        - check
+  vars:
+    ansible_connection: local
+
 - hosts: bastion[0]
   gather_facts: False
   roles:

remove-node.yml

 ---
+- hosts: localhost
+  tasks:
+    - name: Check ansible version <2.7
+      assert:
+        msg: "Ansible V2.7.0 can't be used until: https://github.com/ansible/ansible/issues/46600 is fixed"
+        that:
+          - ansible_version.string is version("2.7.0", "<")
+          - ansible_version.string is version("2.5.0", ">=")
+      tags:
+        - check
+  vars:
+    ansible_connection: local
 
 - hosts: all
   vars:

requirements.txt

-ansible>=2.5.0
+ansible>=2.5.0,<2.7
 jinja2>=2.9.6
 netaddr
 pbr>=1.6

reset.yml

 ---
+- hosts: localhost
+  tasks:
+    - name: Check ansible version <2.7
+      assert:
+        msg: "Ansible V2.7.0 can't be used until: https://github.com/ansible/ansible/issues/46600 is fixed"
+        that:
+          - ansible_version.string is version("2.7.0", "<")
+          - ansible_version.string is version("2.5.0", ">=")
+      tags:
+        - check
+  vars:
+    ansible_connection: local
 
 - hosts: all
   gather_facts: true

scale.yml

 ---
+- hosts: localhost
+  tasks:
+    - name: Check ansible version <2.7
+      assert:
+        msg: "Ansible V2.7.0 can't be used until: https://github.com/ansible/ansible/issues/46600 is fixed"
+        that:
+          - ansible_version.string is version("2.7.0", "<")
+          - ansible_version.string is version("2.5.0", ">=")
+      tags:
+        - check
+  vars:
+    ansible_connection: local
+
 - hosts: bastion[0]
   gather_facts: False
   roles:

upgrade-cluster.yml

 ---
+- hosts: localhost
+  tasks:
+    - name: Check ansible version <2.7
+      assert:
+        msg: "Ansible V2.7.0 can't be used until: https://github.com/ansible/ansible/issues/46600 is fixed"
+        that:
+          - ansible_version.string is version("2.7.0", "<")
+          - ansible_version.string is version("2.5.0", ">=")
+      tags:
+        - check
+  vars:
+    ansible_connection: local
+
 - hosts: bastion[0]
   gather_facts: False
   roles: