elasticsearch: support versions >= 6

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

@@ -31,6 +31,9 @@ elasticsearch_define_heap_size: False
 elasticsearch_heap_size: 2g
 elasticsearch_additional_java_opts: '-server -Djava.awt.headless=true -Dfile.encoding=UTF-8'
 elasticsearch_max_open_files: 65536
+elasticsearch_cluster_routing_allocation_disk_threshold_enabled: 'true'
+elasticsearch_cluster_routing_allocation_disk_watermark_low: '85%'
+elasticsearch_cluster_routing_allocation_disk_watermark_high: '90%'
 # Compatibility with kernels <= 3.5. Set to False if you are using a newer kernel
 elasticsearch_disable_bootstrap_syscall_filter: True
 

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

@@ -7,8 +7,7 @@
       apt_repository: repo='{{ elasticsearch_repo }}' state=present update_cache=yes
 
     - name: Install the elasticsearch deb packages
-      apt: name='{{ item }}' state={{ elasticsearch_package_state }} update_cache=yes cache_valid_time=1800
-      with_items: '{{ elasticsearch_packages }}'
+      apt: name='{{ elasticsearch_packages }}' state={{ elasticsearch_package_state }} update_cache=yes cache_valid_time=1800
   
     - name: Install the elasticsearch startup default
       template: src=elasticsearch-default.j2 dest=/etc/default/elasticsearch owner=root group=elasticsearch mode=0640
@@ -24,5 +23,4 @@
       notify: Restart elasticsearch
       tags: [ 'ELK', 'elasticsearch', 'elk', 'elasticsearch_conf' ]
 
-
   tags: [ 'ELK', 'elasticsearch', 'elk' ]

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

@@ -24,7 +24,7 @@ node.name: {{ ansible_fqdn }}
 
 {% if elasticsearch_major_version >= 7 %}
 cluster.initial_master_nodes:
-{% for n in elasticsearch_bootstrap_known_masters 5}
+{% for n in elasticsearch_bootstrap_known_masters %}
   - {{ n }}
 {% endfor %}
 {% endif %}
@@ -106,6 +106,11 @@ node.max_local_storage_nodes: {{ elasticsearch_max_local_storage_nodes }}
 #
 action.destructive_requires_name: {{ elasticsearch_destructive_requires_name }}
 
+#
+cluster.routing.allocation.disk.threshold_enabled: {{ elasticsearch_cluster_routing_allocation_disk_threshold_enabled }}
+cluster.routing.allocation.disk.watermark.low: {{ elasticsearch_cluster_routing_allocation_disk_watermark_low }}
+cluster.routing.allocation.disk.watermark.high: {{ elasticsearch_cluster_routing_allocation_disk_watermark_high }}
+
 {% if elasticsearch_disable_bootstrap_syscall_filter %}
 # When using an old kernel
 bootstrap.system_call_filter: false

library/roles/ELK/elasticsearch/templates/jvm.options.j2

@@ -71,7 +71,9 @@
 -Dlog4j.shutdownHookEnabled=false
 -Dlog4j2.disable.jmx=true
 
+{% if elasticsearch_major_version >= 6 %}
 -Djava.io.tmpdir=${ES_TMPDIR}
+{% endif %}
 
 ## heap dumps