elasticsearch

Use the elasticsearch resource to test the status of a node against a running Elasticsearch cluster. InSpec retrieves the node list from the cluster node URL provided (defaults to http://localhost:9200) and provides the ability to query a variety of settings and statuses.


Syntax

describe elasticsearch do
  its('property') { should cmp 'value' }
end


Supported Resource parameters

The elasticsearch resource accepts a number of optional resource parameters:

  • url: the top-level URL of an Elasticsearch node in the cluster. If your Elasticsearch installation is not served out of the top-level directory at the host, be sure to specific the full URL; for example: http://my-load-balancer/elasticsearch. Default: http://localhost:9200
  • username: a username to use to log in with HTTP-Basic authentication. If username is provided, a password must also be provided.
  • password: a password to use to log in with HTTP-Basic authentication. If password is provided, a username must also be provided.
  • ssl_verify: if false, SSL certificate validation will be disabled. Default: true

In addition, the elasticsearch resource allows for filtering the nodes returned by property before executing the tests:

describe elasticsearch.where { node_name == 'one-off-node' } do
  its('version') { should eq '1.2.3' }
end

describe elasticsearch.where { process.mlockall == false } do
  its('count') { should cmp 0 }
end

To simply check if nodes exist that match the criteria, use the exist matcher:

describe elasticsearch.where { cluster_name == 'my_cluster' } do
  it { should exist }
end


Properties

The following properties are provided:

  • build_hash cluster_name, host, http, ingest, ip, jvm, module_list, modules, node_name, node_id, os, plugin_list, plugins, process, roles, settings, total_indexing_buffer, transport, transport_address, version

Since the elasticsearch resource is meant for use on a cluster, each property will return an array of the values for each node that matches any provided search criteria. Using InSpec’s cmp matcher helps avoid issues when comparing values when there is only a single match (i.e. when the cluster only contains a single node, or the where filter criteria provided only returns a single node).


Property Examples

build_hash

Returns the build hash for each of the nodes.

describe elasticsearch do
  its('build_hash') { should cmp 'b2f0c09' }
end

cluster_name

Returns the cluster names of each of the nodes.

describe elasticsearch do
  its('cluster_name') { should cmp 'my_cluster' }
end

host

Returns the hostname of each of the nodes. This may return an IP address, if the node is improperly performing DNS resolution or has no hostname set.

describe elasticsearch do
  its('host') { should cmp 'my.hostname.mycompany.biz' }
end

http

Returns a hash of HTTP-related settings for each of the nodes. In this example, the first method is used to grab only the first node’s HTTP-related info and is a way of removing the item from the Array if only one node is being queried.

describe elasticsearch do
  its('http.first.max_content_length_in_bytes') { should cmp 123456 }
end

ingest

Returns ingest-related settings and capabilities, such as available processors.

describe elasticsearch do
  its('ingest.first.processors.count') { should be >= 1 }
end

ip

Returns the IP address of each of the nodes.

describe elasticsearch do
  its('ip') { should cmp '192.168.1.100' }
end

jvm

Returns Java Virtual Machine related parameters for each of the nodes.

describe elasticsearch do
  its('jvm.first.version') { should cmp '1.8.0_141' }
end

module_list

Returns a list of enabled modules for each node in the cluster. For more additional information about each module, use the modules property.

describe elasticsearch do
  its('module_list.first') { should include 'my_module' }
end

modules

Returns detailed information about each enabled module for each node in the cluster. For a succint list of the names of each of the modules enabled, use the module_list property. This example uses additional Ruby to find a specific module and assert a value.

modules = elasticsearch.modules.first
lang_groovy_module = modules.find { |mod| mod.name == 'lang-groovy' }

describe 'lang-groovy module version' do
  subject { lang_groovy_module }
  its('version') { should cmp '5.5.2' }
end

node_name

Returns the node name for each node in the cluster.

describe elasticsearch do
  its('node_name') { should cmp 'node1' }
end

node_id

Returns the node IDs of each of the nodes in the cluster.

describe elasticsearch do
  its('node_id') { should include 'my_node_id' }
end

os

Returns OS-related information about each node in the cluster.

describe elasticsearch do
  its('os.first.arch') { should cmp 'amd64' }
end

plugin_list

Returns a list of enabled plugins for each node in the cluster. For more additional information about each plugin, use the plugins property.

describe elasticsearch do
  its('plugin_list.first') { should include 'my_plugin' }
end

plugins

Returns detailed information about each enabled plugin for each node in the cluster. For a succint list of the names of each of the plugins enabled, use the plugin_list property. This example uses additional Ruby to find a specific plugin and assert a value.

plugins = elasticsearch.plugins.first
my_plugin = plugins.find { |plugin| plugin.name == 'my_plugin' }

describe 'my_plugin plugin version' do
  subject { my_plugin }
  its('version') { should cmp '1.2.3' }
end

process

Returns process information for each node in the cluster, such as the process ID.

describe elasticsearch do
  its('process.first.mlockall') { should cmp true }
end

roles

Returns the role for each of the nodes in the cluster.

describe elasticsearch.where { node_name == 'my_master_node' } do
  it { should include 'master' }
end

settings

Returns all the configuration settings for each node in the cluster. These settings usually include those set in the elasticsearch.yml as well as those set via -Des. or -E flags at startup. Use the inspec shell to explore the various setting keys that are available.

describe elasticsearch do
  its('settings.first.path.home') { should cmp '/usr/share/elasticsearch' }
end

totalindexingbuffer

Returns the total indexing buffer for each node in the cluster.

describe elasticsearch do
  its('total_indexing_buffer') { should cmp 123456 }
end

transport

Returns transport-related settings for each node in the cluster, such as the bound and published addresses.

describe elasticsearch do
  its('transport.first.bound_address') { should cmp '1.2.3.4:9200' }
end

transport_address

Returns the bound transport address for each node in the cluster.

describe elasticsearch do
  its('transport_address') { should cmp '1.2.3.4:9200' }
end

version

Returns the version of Elasticsearch running on each node of the cluster.

describe elasticsearch do
  its('version') { should cmp '5.5.2' }
end


Matchers

For a full list of available matchers, please visit our matchers page.