library/roles/ELK/elasticsearch: install the elasticsearch configuration and the debian default from templates.

This commit is contained in:
Andrea Dell'Amico 2016-02-15 15:52:30 +01:00
parent 51d5e37310
commit c8645263ce
5 changed files with 210 additions and 0 deletions

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@ -7,3 +7,16 @@ elasticsearch_packages:
elasticsearch_cluster_name: 'Elasticsearch Cluster' elasticsearch_cluster_name: 'Elasticsearch Cluster'
elasticsearch_enabled: True elasticsearch_enabled: True
elasticsearch_http_port: 9200 elasticsearch_http_port: 9200
elasticsearch_data_dir: /var/lib/elasticsearch
elasticsearch_log_dir: /var/log/elasticsearch
elasticsearch_bind_ip: 127.0.0.1
elasticsearch_discovery_host_list: '["127.0.0.1", "[::1]"]'
elasticsearch_define_majority_of_nodes: False
elasticsearch_majority_of_nodes: 3
elasticsearch_recover_after_nodes: 3
elasticsearch_max_local_storage_nodes: 1
elasticsearch_destructive_requires_name: True
elasticsearch_define_heap_size: False
elasticsearch_heap_size: 2g
elasticsearch_additional_java_opts: ''
elasticsearch_max_open_files: 65535

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@ -0,0 +1,5 @@
---
- name: Restart elasticsearch
service: name=elasticsearch state=restarted enabled=yes
when: elasticsearch_enabled

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@ -12,8 +12,23 @@
with_items: '{{ elasticsearch_packages }}' with_items: '{{ elasticsearch_packages }}'
tags: [ 'ELK', 'elasticsearch', 'elk' ] tags: [ 'ELK', 'elasticsearch', 'elk' ]
- name: Install the elasticsearch startup default
template: src=elasticsearch-default.j2 dest=/etc/default/elasticsearch owner=root group=elasticsearch mode=0640
notify: Restart elasticsearch
tags: [ 'ELK', 'elasticsearch', 'elk' ]
- name: Install the elasticsearch configuration
template: src=elasticsearch.yml.j2 dest=/etc/elasticsearch/elasticsearch.yml owner=root group=elasticsearch mode=0640
notify: Restart elasticsearch
tags: [ 'ELK', 'elasticsearch', 'elk' ]
- name: Ensure that elasticsearch is enabled and running - name: Ensure that elasticsearch is enabled and running
service: name=elasticsearch state=started enabled=yes service: name=elasticsearch state=started enabled=yes
when: elasticsearch_enabled when: elasticsearch_enabled
tags: [ 'ELK', 'elasticsearch', 'elk' ] tags: [ 'ELK', 'elasticsearch', 'elk' ]
- name: Ensure that elasticsearch is disabled and stopped
service: name=elasticsearch state=stopped enabled=no
when: not elasticsearch_enabled
tags: [ 'ELK', 'elasticsearch', 'elk' ]

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@ -0,0 +1,78 @@
################################
# Elasticsearch
################################
# Elasticsearch home directory
#ES_HOME=/usr/share/elasticsearch
# Elasticsearch configuration directory
#CONF_DIR=/etc/elasticsearch
# Elasticsearch data directory
DATA_DIR={{ elasticsearch_data_dir }}
# Elasticsearch logs directory
LOG_DIR={{ elasticsearch_log_dir }}
# Elasticsearch PID directory
#PID_DIR=/var/run/elasticsearch
{% if elasticsearch_define_heap_size %}
# Heap size defaults to 256m min, 1g max
# Set ES_HEAP_SIZE to 50% of available RAM, but no more than 31g
ES_HEAP_SIZE={{ elasticsearch_heap_size }}
# Heap new generation
#ES_HEAP_NEWSIZE=
# Maximum direct memory
#ES_DIRECT_SIZE=
{% endif %}
# Additional Java OPTS
ES_JAVA_OPTS={{ elasticsearch_additional_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
################################
# Elasticsearch service
################################
# SysV init.d
#
# When executing the init script, this user will be used to run the elasticsearch service.
# The default value is 'elasticsearch' and is declared in the init.d file.
# Note that this setting is only used by the init script. If changed, make sure that
# the configured user can read and write into the data, work, plugins and log directories.
# For systemd service, the user is usually configured in file /usr/lib/systemd/system/elasticsearch.service
ES_USER=elasticsearch
ES_GROUP=elasticsearch
# The number of seconds to wait before checking if Elasticsearch started successfully as a daemon process
ES_STARTUP_SLEEP_TIME=5
################################
# System properties
################################
# 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={{ elasticsearch_max_open_files }}
{% if elasticsearch_define_heap_size %}
# The maximum number of bytes of memory that may be locked into RAM
# Set to "unlimited" if you use the 'bootstrap.mlockall: true' option
# in elasticsearch.yml (ES_HEAP_SIZE must also be set).
# When using Systemd, the LimitMEMLOCK property must be set
# in /usr/lib/systemd/system/elasticsearch.service
MAX_LOCKED_MEMORY=unlimited
{% endif %}
# Maximum number of VMA (Virtual Memory Areas) a process can own
# When using Systemd, this setting is ignored and the 'vm.max_map_count'
# property is set at boot time in /usr/lib/sysctl.d/elasticsearch.conf
#MAX_MAP_COUNT=262144

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@ -0,0 +1,99 @@
# ======================== Elasticsearch Configuration =========================
#
# NOTE: Elasticsearch comes with reasonable defaults for most settings.
# Before you set out to tweak and tune the configuration, make sure you
# understand what are you trying to accomplish and the consequences.
#
# The primary way of configuring a node is via this file. This template lists
# the most important settings you may want to configure for a production cluster.
#
# Please see the documentation for further information on configuration options:
# <http://www.elastic.co/guide/en/elasticsearch/reference/current/setup-configuration.html>
#
# ---------------------------------- Cluster -----------------------------------
#
# Use a descriptive name for your cluster:
#
cluster.name: {{ elasticsearch_cluster_name }}
#
# ------------------------------------ Node ------------------------------------
#
# Use a descriptive name for the node:
#
node.name: {{ ansible_fqdn }}
#
# Add custom attributes to the node:
#
# node.rack: r1
#
# ----------------------------------- Paths ------------------------------------
#
# Path to directory where to store the data (separate multiple locations by comma):
#
path.data: {{ elasticsearch_data_dir }}
#
# Path to log files:
#
path.logs: {{ elasticsearch_log_dir }}
#
{% if elasticsearch_define_heap_size %}
# ----------------------------------- Memory -----------------------------------
#
# Lock the memory on startup:
#
bootstrap.mlockall: true
#
# Make sure that the `ES_HEAP_SIZE` environment variable is set to about half the memory
# available on the system and that the owner of the process is allowed to use this limit.
#
# Elasticsearch performs poorly when the system is swapping the memory.
#
{% endif %}
# ---------------------------------- Network -----------------------------------
#
# Set the bind address to a specific IP (IPv4 or IPv6):
#
network.host: {{ elasticsearch_bind_ip }}
#
# Set a custom port for HTTP:
#
http.port: {{ elasticsearch_http_port }}
#
# For more information, see the documentation at:
# <http://www.elastic.co/guide/en/elasticsearch/reference/current/modules-network.html>
#
# --------------------------------- Discovery ----------------------------------
#
# Pass an initial list of hosts to perform discovery when new node is started:
# The default list of hosts is ["127.0.0.1", "[::1]"]
#
discovery.zen.ping.unicast.hosts: {{ elasticsearch_discovery_host_list }}
#
{% if elasticsearch_define_majority_of_nodes %}
# Prevent the "split brain" by configuring the majority of nodes (total number of nodes / 2 + 1):
#
discovery.zen.minimum_master_nodes: {{ elasticsearch_majority_of_nodes }}
#
# For more information, see the documentation at:
# <http://www.elastic.co/guide/en/elasticsearch/reference/current/modules-discovery.html>
#
# ---------------------------------- Gateway -----------------------------------
#
# Block initial recovery after a full cluster restart until N nodes are started:
#
gateway.recover_after_nodes:
#
# For more information, see the documentation at:
# <http://www.elastic.co/guide/en/elasticsearch/reference/current/modules-gateway.html>
#
{% endif %}
# ---------------------------------- Various -----------------------------------
#
# Disable starting multiple nodes on a single system:
#
node.max_local_storage_nodes: {{ elasticsearch_max_local_storage_nodes }}
#
# Require explicit names when deleting indices:
#
action.destructive_requires_name: {{ elasticsearch_destructive_requires_name }}