allow instance_name and inventory_hostname

tasks/RedHat.yml

@@ -11,12 +11,18 @@
     manager: "auto"
 
 - name: Install check-mk-agent
-  block:       
+  block:
+    - name: Check if check-mk-agent is present on server
+      stat:
+        path: /tmp/check-mk-agent.rpm
+      register: cmkrpm
+
     - name: Download the agent from Server
       get_url:
         url: "{{ cmk_rpm_agent }}{{ cmk_auth }}"
         dest: /tmp/check-mk-agent.rpm
         validate_certs: false
+      when: not cmkrpm.stat.exists
         
     - name: Ensure check_mk_agent installed
       command: /usr/bin/yum install --nogpgcheck -y /tmp/check-mk-agent.rpm