Use default config files

README.md

@@ -405,7 +405,6 @@ In addition to es_config, the following parameters allow the customization of th
 * ```update_java``` Updates Java to the latest version. (true or false (default))
 * ```es_max_map_count``` maximum number of VMA (Virtual Memory Areas) a process can own. Defaults to 262144.
 * ```es_max_open_files``` the maximum file descriptor number that can be opened by this process. Defaults to 65536.
-* ```es_max_threads``` the maximum number of threads the process can start. Defaults to 2048 (the minimum required by elasticsearch).
 * ```es_debian_startup_timeout``` how long Debian-family SysV init scripts wait for the service to start, in seconds. Defaults to 10 seconds.
 * ```es_use_repository``` Setting this to `false` will stop Ansible from using the official Elastic package from any repository configured on the system.
 * ```es_add_repository``` Setting this to `false` will stop Ansible to add the official Elastic package repositories (if es_use_repository is true) if you want to use a repo already present.

defaults/main.yml

@@ -20,7 +20,9 @@ es_templates: false
 es_user: elasticsearch
 es_group: elasticsearch
 es_config: {}
-es_config_log4j2: log4j2.properties.j2
+es_config_default: "elasticsearch.j2"
+es_config_log4j2: ""
+es_config_jvm: "jvm.options.j2"
 #Need to provide default directories
 es_conf_dir: "/etc/elasticsearch"
 es_pid_dir: "/var/run/elasticsearch"
@@ -29,7 +31,6 @@ es_data_dirs:
 es_log_dir: "/var/log/elasticsearch"
 es_action_auto_create_index: true
 es_max_open_files: 65536
-es_max_threads: 8192
 es_max_map_count: 262144
 es_allow_downgrades: false
 es_xpack_features: []

tasks/elasticsearch-config.yml

@@ -4,54 +4,101 @@
 #Create conf directory
 - name: Create Configuration Directory
   become: yes
-  file: path={{ es_conf_dir }} state=directory owner=root group={{ es_group }} mode=2750
+  file:
+    path: "{{ es_conf_dir }}"
+    state: directory
+    owner: root
+    group: "{{ es_group }}"
+    mode: "2750"
 
 #Create pid directory
 - name: Create PID Directory
   become: yes
-  file: path={{ es_pid_dir }} state=directory owner={{ es_user }} group={{ es_group }} mode=0755
+  file:
+    path: "{{ es_pid_dir }}"
+    state: directory
+    owner: "{{ es_user }}"
+    group: "{{ es_group }}"
+    mode: "755"
 
 #Create required directories
 - name: Create Others Directories
   become: yes
-  file: path={{ item }} state=directory owner={{ es_user }} group={{ es_group }} mode=2750
+  file:
+    path: "{{ item }}"
+    state: directory
+    owner: "{{ es_user }}"
+    group: "{{ es_group }}"
+    mode: "2750"
   with_items:
     - "{{ es_log_dir }}"
     - "{{ es_data_dirs }}"
 
 #Copy the config template
 - name: Copy Configuration File
   become: yes
-  template: src=elasticsearch.yml.j2 dest={{ es_conf_dir }}/elasticsearch.yml owner=root group={{ es_group }} mode=0660 force=yes
+  template:
+    src: elasticsearch.yml.j2
+    dest: "{{ es_conf_dir }}/elasticsearch.yml"
+    owner: root
+    group: "{{ es_group }}"
+    mode: "660"
+    force: yes
   register: system_change
   notify: restart elasticsearch
 
 #Copy the default file
 - name: Copy Default File
   become: yes
-  template: src=elasticsearch.j2 dest={{ default_file }} owner=root group={{ es_group }} mode=0660 force=yes
+  template:
+    src: "{{ es_config_default }}"
+    dest: "{{ default_file }}"
+    owner: root
+    group: "{{ es_group }}"
+    mode: "660"
+    force: yes
   notify: restart elasticsearch
 
 #Copy the systemd specific file if systemd is installed
 - when: use_system_d and m_lock_enabled
   become: yes
   block:
     - name: Make sure destination dir exists
-      file: path={{ sysd_config_file | dirname }} state=directory mode=0755
+      file:
+        path: "{{ sysd_config_file | dirname }}"
+        state: directory
+        mode: "755"
 
     - name: Copy specific ElasticSearch Systemd config file
-      ini_file: path={{ sysd_config_file }} section=Service option=LimitMEMLOCK value=infinity mode=0644
+      ini_file:
+        path: "{{ sysd_config_file }}"
+        section: Service
+        option: LimitMEMLOCK
+        value: infinity
+        mode: "644"
       notify:
        - reload systemd configuration
        - restart elasticsearch
 
-#Copy the logging.yml
-- name: Copy log4j2.properties File
+- name: Copy jvm.options File
   become: yes
-  template: src={{ es_config_log4j2 }} dest={{ es_conf_dir }}/log4j2.properties owner=root group={{ es_group }} mode=0660 force=yes
+  template:
+    src: "{{ es_config_jvm }}"
+    dest: "{{ es_conf_dir }}/jvm.options"
+    owner: root
+    group: "{{ es_group }}"
+    mode: "660"
+    force: yes
   notify: restart elasticsearch
 
-- name: Copy jvm.options File
+- name: Copy log4j2.properties File
   become: yes
-  template: src=jvm.options.j2 dest={{ es_conf_dir }}/jvm.options owner=root group={{ es_group }} mode=0660 force=yes
+  template:
+    src: "{{ es_config_log4j2 }}"
+    dest: "{{ es_conf_dir }}/log4j2.properties"
+    owner: root
+    group: "{{ es_group }}"
+    mode: "660"
+    force: yes
   notify: restart elasticsearch
+  when: es_config_log4j2 != ''

tasks/elasticsearch-ssl.yml

@@ -13,15 +13,15 @@
     state: directory
     owner: root
     group: "{{ es_group }}"
-    mode: 0750
+    mode: "750"
 
 - name: Upload SSL/TLS keystore
   copy:
     src: "{{ es_ssl_keystore }}"
     dest: "{{ es_ssl_certificate_path }}/{{ es_ssl_keystore | basename }}"
     owner: "{{ es_user }}"
     group: "{{ es_group }}"
-    mode: 0640
+    mode: "640"
   when: es_ssl_keystore and es_ssl_truststore
   notify: restart elasticsearch
   register: copy_keystore
@@ -32,7 +32,7 @@
     dest: "{{ es_ssl_certificate_path }}/{{ es_ssl_truststore | basename }}"
     owner: "{{ es_user }}"
     group: "{{ es_group }}"
-    mode: 0640
+    mode: "640"
   when: es_ssl_keystore and es_ssl_truststore
   notify: restart elasticsearch
   register: copy_truststore
@@ -43,7 +43,7 @@
     dest: "{{ es_ssl_certificate_path }}/{{ item | basename }}"
     owner: "{{ es_user }}"
     group: "{{ es_group }}"
-    mode: 0640
+    mode: "640"
   with_items:
     - "{{ es_ssl_key }}"
     - "{{ es_ssl_certificate }}"
@@ -58,7 +58,7 @@
     dest: "{{ es_ssl_certificate_path }}/{{ es_ssl_certificate_authority | basename }}"
     owner: "{{ es_user }}"
     group: "{{ es_group }}"
-    mode: 0640
+    mode: "640"
   #Restart if this changes
   notify: restart elasticsearch
   when: es_ssl_certificate_authority | bool

tasks/elasticsearch-template.yml

@@ -6,7 +6,7 @@
     state: directory
     owner: root
     group: "{{ es_group }}"
-    mode: 2750
+    mode: "2750"
 
 - name: Copy templates to elasticsearch
   copy: src={{ item }} dest={{ es_conf_dir }}/templates owner=root group={{ es_group }} mode=0660

templates/elasticsearch.j2

@@ -9,30 +9,23 @@ ES_HOME={{es_home}}
 #JAVA_HOME=
 
 # Elasticsearch configuration directory
-CONF_DIR={{ es_conf_dir }}
 ES_PATH_CONF={{ es_conf_dir }}
 
-# Elasticsearch data directory
-DATA_DIR={{ es_data_dirs | array_to_str }}
-
-# Elasticsearch logs directory
-LOG_DIR={{ es_log_dir }}
-
 # Elasticsearch PID directory
 PID_DIR={{ es_pid_dir }}
 
-ES_JVM_OPTIONS={{ es_conf_dir }}/jvm.options
+# Additional Java OPTS
+ES_JAVA_OPTS=
 
 # Configure restart on package upgrade (true, every other setting will lead to not restarting)
-#ES_RESTART_ON_UPGRADE=true
-
-# Path to the GC log file
-#ES_GC_LOG_FILE=/var/log/elasticsearch/gc.log
+#RESTART_ON_UPGRADE=true
 
 ################################
 # Elasticsearch service
 ################################
 
+# SysV init.d
+#
 # The number of seconds to wait before checking if Elasticsearch started successfully as a daemon process
 ES_STARTUP_SLEEP_TIME=5
 
@@ -43,17 +36,17 @@ ES_STARTUP_SLEEP_TIME=5
 # Specifies the maximum file descriptor number that can be opened by this process
 # When using Systemd, this setting is ignored and the LimitNOFILE defined in
 # /usr/lib/systemd/system/elasticsearch.service takes precedence
+#MAX_OPEN_FILES=65535
 {% if es_max_open_files is defined %}
-#MAX_OPEN_FILES
 MAX_OPEN_FILES={{es_max_open_files}}
 {% endif %}
 
 # The maximum number of bytes of memory that may be locked into RAM
 # Set to "unlimited" if you use the 'bootstrap.memory_lock: true' option
-# in elasticsearch.yml
-# When using Systemd, the LimitMEMLOCK property must be set
-# in /usr/lib/systemd/system/elasticsearch.service
-#MAX_LOCKED_MEMORY=
+# in elasticsearch.yml.
+# When using systemd, LimitMEMLOCK must be set in a unit file such as
+# /etc/systemd/system/elasticsearch.service.d/override.conf.
+#MAX_LOCKED_MEMORY=unlimited
 {% if m_lock_enabled %}
 MAX_LOCKED_MEMORY=unlimited
 {% endif %}
@@ -65,9 +58,3 @@ MAX_LOCKED_MEMORY=unlimited
 {% if es_max_map_count is defined %}
 MAX_MAP_COUNT={{es_max_map_count}}
 {% endif %}
-
-# Specifies the maximum number of threads that can be started.
-# Elasticsearch requires a minimum of 2048.
-{% if es_max_threads is defined %}
-MAX_THREADS={{ es_max_threads }}
-{% endif %}