elasticsearch: Fix the configuration when version is >= 7.

library/roles/ELK/elasticsearch/defaults/main.yml

@@ -1,10 +1,13 @@
 ---
 elasticsearch_repo_key: https://packages.elastic.co/GPG-KEY-elasticsearch
-elasticsearch_major_version: 2
 elasticsearch_repo_version: '{{ elasticsearch_major_version }}.x'
-elasticsearch_repo: 'deb http://packages.elastic.co/elasticsearch/{{ elasticsearch_repo_version }}/debian stable main'
-#elasticsearch_major_version: 5
-#elasticsearch_repo: 'deb https://artifacts.elastic.co/packages/{{ elasticsearch_repo_version }}/apt stable main'
+#elasticsearch_major_version: 2
+#elasticsearch_repo: 'deb http://packages.elastic.co/elasticsearch/{{ elasticsearch_repo_version }}/debian stable main'
+elasticsearch_major_version: 5
+elasticsearch_minor_version: 4
+elasticsearch_patch_version: 0
+elasticsearch_version: '{{ elasticsearch_major_version }}.{{ elasticsearch_minor_version }}.{{ elasticsearch_patch_version }}'
+elasticsearch_repo: 'deb https://artifacts.elastic.co/packages/{{ elasticsearch_repo_version }}/apt stable main'
 elasticsearch_packages:
   - elasticsearch
 
@@ -18,6 +21,8 @@ elasticsearch_bind_ip: 0.0.0.0
 elasticsearch_discovery_host_list: '["127.0.0.1", "[::1]"]'
 elasticsearch_define_majority_of_nodes: True
 elasticsearch_majority_of_nodes: 1
+elasticsearch_bootstrap_known_masters:
+  - '{{ ansible_fqdn }}'
 elasticsearch_real_cluster: False
 elasticsearch_recover_after_nodes: 3
 elasticsearch_max_local_storage_nodes: 1
@@ -30,12 +35,12 @@ elasticsearch_max_open_files: 65536
 elasticsearch_disable_bootstrap_syscall_filter: True
 
 # bin/plugin for 2.x, bin/elasticsearch-plugin for 5.x
-#elasticsearch_plugin_bin: /usr/share/elasticsearch/bin/elasticsearch-plugin
-elasticsearch_plugin_bin: /usr/share/elasticsearch/bin/plugin
+#elasticsearch_plugin_bin: /usr/share/elasticsearch/bin/plugin
 #elasticsearch_plugins:
 #  - { name: 'royrusso/elasticsearch-HQ', state: 'present' }
+elasticsearch_plugin_bin: /usr/share/elasticsearch/bin/elasticsearch-plugin
 
 # elasticsearch 5 not supported yet, so set it to False when installing 5.x
-elasticsearch_hq_install: True
+elasticsearch_hq_install: False
 elasticsearch_hq_plugin:
   - { name: 'royrusso/elasticsearch-HQ', state: 'present' }

library/roles/ELK/elasticsearch/tasks/plugins.yml

@@ -7,7 +7,9 @@
     - name: Install the elasticsearch HQ plugin
       elasticsearch_plugin: name="{{ item.name }}" state={{ item.state }} plugin_bin={{ elasticsearch_plugin_bin }} url={{ item.url|default(omit) }} version={{ item.version|default(omit) }}
       with_items: '{{ elasticsearch_hq_plugin | default ([]) }}'
-      when: elasticsearch_hq_install
+      when:
+        - elasticsearch_major_version <= 2
+        - elasticsearch_hq_install
 
   when: elasticsearch_plugins is defined
   tags: [ 'elasticsearch', 'es_plugins' ]

library/roles/ELK/elasticsearch/templates/elasticsearch.yml.j2

@@ -21,6 +21,13 @@ cluster.name: {{ elasticsearch_cluster_name }}
 # Use a descriptive name for the node:
 #
 node.name: {{ ansible_fqdn }}
+
+{% if elasticsearch_major_version >= 7 %}
+cluster.initial_master_nodes:
+{% for n in elasticsearch_bootstrap_known_masters 5}
+  - {{ n }}
+{% endfor %}
+{% endif %}
 #
 # Add custom attributes to the node:
 #