metricbeat: add a variable for the protocol to use with Elasticsearch

CHANGELOG.md

@@ -13,6 +13,7 @@ The **patch** part changes incrementally at each release.
 ### Added
 * apache: add Munin configuration for Apache server-status URL
 * evomaintenance: database variables must be set or the task fails
+* metricbeat: add a variable for the protocol to use with Elasticsearch
 * rbenv: add pkg-config to the list of packages to install
 * redis: Configure munin when working in instance mode
 * redis: add a variable for renamed/disabled commands

metricbeat/defaults/main.yml

@@ -1,6 +1,7 @@
 ---
 elastic_stack_version: "6.x"
 
+metricbeat_elasticsearch_protocol: ""
 metricbeat_elasticsearch_hosts:
   - "localhost:9200"
 metricbeat_elasticsearch_auth_username: ""

metricbeat/tasks/main.yml

@@ -50,6 +50,15 @@
   when:
     - metricbeat_elasticsearch_hosts
 
+- name: Metricbeat protocol for Elasticsearch
+  lineinfile:
+    dest: /etc/metricbeat/metricbeat.yml
+    regexp: '^  #?protocol: .*'
+    line: "  protocol: \"{{ metricbeat_elasticsearch_protocol }}\""
+    insertafter: "output.elasticsearch:"
+  notify: restart metricbeat
+  when: metricbeat_elasticsearch_protocol == "http" or metricbeat_elasticsearch_protocol == "https"
+
 - name: Metricbeat auth/username for Elasticsearch are configured
   lineinfile:
     dest: /etc/metricbeat/metricbeat.yml