add consul role for consul installation

ansible/roles/consul/tasks/main.yml

@@ -0,0 +1,12 @@
+- name: Ensure group "consul" exists
+  become: true
+  ansible.builtin.group:
+    name: consul
+    state: present
+- name: Install Consul
+  apt: 
+    name: consul
+- name: Create config file
+  ansible.builtin.template:
+    src: /srv/newsblur/consul/consul.json.j2
+    dest: /consul.json