md code block

Author: crosmuller

roles/haproxy_mgnt/README.md

@@ -2,16 +2,19 @@ usage for rood/blauw deployment:
 
 an example playbook:
 
+```
 ---
 - name: Change loadbalancer state
   hosts: loadbalancer_ha
   become: false
   gather_facts: false
   roles:
     - { role: haproxy_mgnt, tags: ['haproxy_mgnt'] }
+```
 
 in group_vars set haproxy_applications:
 
+```
 haproxy_applications:
 
   - name: <APP>
@@ -20,12 +23,19 @@ haproxy_applications:
     ha_url: "/health"
     port: "{{ loadbalancing.engine.port }}"
     servers: "{{ docker_servers }}"
+```
 
 and set servers, add a color label:
 
+```
 docker_servers:
    - { ip: "<IPROOD>", label: "docker", color: "rood" }
    - { ip: "<IPBLAUW>", label: "docker", color: "blauw" }
+```
 
+run the playbook:
+
+```
 ansible-playbook -i <INVENTORY> --tags haproxy_mgnt <PLAYBOOKNAME> -e "weight=<WEIGHT>" -e "app_name=<APP>" -e app_filter=color
- -e "app_filtervalue=<COLOR>"
+ -e "app_filtervalue=<COLOR>"
+ ```