Update to 2021-12-01 19:13

roles/elasticsearch/templates/elasticsearch.yml.j2

@@ -0,0 +1,11 @@
+cluster.name: {{ es_cluster_name }}
+network.host: 0.0.0.0
+http.port: {{ es_port }}
+node.name: {{ es_node_name }}
+path.data: {{ es_data_dir }}
+path.logs: /var/log/elasticsearch
+path.repo: [ {{ es_backup_dir }} ]
+action.auto_create_index: false
+{% if es_major_version is defined and es_major_version is version('7','>=') %}
+discovery.type: single-node
+{% endif %}

roles/elasticsearch/templates/log4j2.properties.j2

@@ -0,0 +1,28 @@
+status = error
+
+# log action execution errors for easier debugging
+logger.action.name = org.elasticsearch.action
+logger.action.level = debug
+
+appender.console.type = Console
+appender.console.name = console
+appender.console.layout.type = PatternLayout
+appender.console.layout.pattern = [%-5p][%-25c{1.}] %m%n
+
+rootLogger.level = info
+rootLogger.appenderRef.console.ref = console
+
+logger.deprecation.name = org.elasticsearch.deprecation
+logger.deprecation.level = warn
+logger.deprecation.appenderRef.console.ref = console
+logger.deprecation.additivity = false
+
+logger.index_search_slowlog_rolling.name = index.search.slowlog
+logger.index_search_slowlog_rolling.level = trace
+logger.index_search_slowlog_rolling.appenderRef.console.ref = console
+logger.index_search_slowlog_rolling.additivity = false
+
+logger.index_indexing_slowlog.name = index.indexing.slowlog.index
+logger.index_indexing_slowlog.level = trace
+logger.index_indexing_slowlog.appenderRef.console.ref = console
+logger.index_indexing_slowlog.additivity = false

roles/elasticsearch/templates/post-backup.j2

@@ -0,0 +1,5 @@
+#!/bin/bash -e
+
+curl -X DELETE http://localhost:{{ es_port }}/_snapshot/lbkp/lbkp
+umount /home/lbkp/es
+fstrim -a -v

roles/elasticsearch/templates/pre-backup.j2

@@ -0,0 +1,7 @@
+#!/bin/sh
+
+set -eo pipefail
+
+mkdir -p /home/lbkp/es
+mount -o bind,ro {{ es_backup_dir }} /home/lbkp/es
+curl -X PUT http://localhost:{{ es_port }}/_snapshot/lbkp/lbkp?wait_for_completion=true