Default variable details¶
debops.kibana default variables have more extensive configuration
than simple strings or lists, here you can find documentation and examples for
kibana__*_configuration variables define the Kibana configuration
options that are set in the
/etc/kibana/kibana.yml configuration file.
The main Kibana configuration file format is YAML. The reference documentation defines two YAML formats recognized by Kibana, hierarchical (YAML dictionary keys are indented), or flat (YAML dictionary keys are separated by dots). This role focuses only on the latter, flat format since it's used everywhere in the Kibana documentation and seems to be the preferred method for majority of the configuration options.
For quick reference, Kibana configuration file contains options in the following format (similar to Elasticsearch):
cluster.name: example-cluster node.name: node-1 network.host: [ _local_, _site_ ] bootstrap.memory_lock: true discovery.zen.minimum_master_nodes: 3
kibana__*_configuration variables are a YAML lists of dictionaries.
Each YAML dictionary defines an option, or redefines a previously defined
option (the variables are flattened and then processed in order).
The first YAML dictionary key of each option (in above case,
discovery is significant, and is used
to separate configuration options into sections defined by the
Configuration options can be defined as YAML dictionaries directly, with the key being the name of the option, and value being its value:
kibana__configuration: - 'cluster.name': 'example-cluster' - 'node.name': 'node-1' - 'network.host': [ '_local_', '_site_' ] - 'bootstrap.memory_lock': True - 'discovery.zen.minimum_master_nodes': 3
The extended YAML dictionary format is detected if a YAML dictionary contains
name key. The dictionaries support specific parameters:
- String. The name of the Kibana option.
- The value of the Kibana option. Can be a string, a number, a boolean or a YAML list.
- An optional comment added to the option, either as a string or a YAML text block.
- If not specified or
present, the option will be included in the configuration. If
absent, the option will not be included. If
comment, the option will be present but commented out (it's an internal feature and may not work reliably for all cases).
Optional, a YAML text block. The name of the configuration option will be discarded and used only as a marker for these parameters. The contents of the
rawkey will be added as-is to the configuration file. You can use this to include more extensive configuration defined as a hierarchical YAML structure. An example configuration which should be equivalent to the previous example:
kibana__configuration: - name: 'node.meta.host_type' raw: | # Node type node.master: true node.data: true node.ingest: true
You should make sure that the identation of the YAML parameters is consistent through the configuration file.
/etc/kibana/kibana.yml configuration file is structured in informal
'sections", each section contains configuration options from a specific group
cluster, etc.). The
contains a YAML list of sections and option types to associate with them. The
order of the entries on the list determines the order of the sections in the
finished configuration file.
Each section definition is a YAML dictionary with specific parameters:
- Name of the section, stored as a comment.
- A string or a YAML list of configuration option prefixes (first YAML dictionary key of a given configuration option). Only the parts defined for a given section will be included in that section.
After all of the sections are processed, any left over configuration options not matched with a particular section will be added at the end of the configuration file.
kibana__*_plugins variables are YAML lists that can be used to
install or remove Kibana plugins. Support for plugin management using
these variables is minimalistic; you can install plugins known by the Elastic
or from an URL. More involved management can be done by creating a separate
role and using
debops.kibana as a role dependency to manage
configuration if necessary. See Usage as a role dependency for more
Each element of the list is a YAML dictionary with specific parameters:
Required. Name of the plugin that shows up in the output of the
command, without the version information included. This parameter will be used to check the state of the plugin.
- Optional. If the plugin is distributed via an URL, you can provide it here for the plugin management script to use instead of the plugin name.
- Optional. If not specified or
present, the plugin and its configuration will be installed. If
absentthe plugin and its configuration will be removed.
- Optional. The system user used for plugin management. Defaults to
kibana__user. Certain plugins like X-Pack generate files on installation which Kibana needs to have write permissions to.
Optional. Custom configuration for a given plugin, in the format recognized by the main configuration template.
See kibana__configuration for more details.
Install a LogTrail plugin:
kibana__plugins: - name: 'logtrail' url: 'https://github.com/sivasamyk/logtrail/releases/download/0.1.13/logtrail-5.4.0-0.1.13.zip'