kibana/docs/setup/docker.asciidoc

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[[docker]]
== Running Kibana on Docker
Docker images for Kibana are available from the Elastic Docker registry. The
base image is https://hub.docker.com/_/centos/[centos:7].
A list of all published Docker images and tags can be found at
https://www.docker.elastic.co[www.docker.elastic.co]. The source code can be
found on https://github.com/elastic/kibana-docker/tree/{branch}[GitHub].
=== Image types
These images are free to use under the Elastic license. They contain open source
and free commercial features and access to paid commercial features.
{xpack-ref}/license-management.html[Start a 30-day trial] to try out all of the
paid commercial features. See the
https://www.elastic.co/subscriptions[Subscriptions] page for information about
Elastic license levels.
Alternatively, you can download `-oss` images, which contain only features that
are available under the Apache 2.0 license.
=== Pulling the image
Obtaining Kibana for Docker is as simple as issuing a +docker pull+ command
against the Elastic Docker registry.
ifeval::["{release-state}"=="unreleased"]
However, version {version} of Kibana has not yet been released, so no Docker
image is currently available for this version.
endif::[]
ifeval::["{release-state}"!="unreleased"]
Docker images can be retrieved with the following commands:
["source","txt",subs="attributes"]
--------------------------------------------
docker pull {docker-repo}:{version}
docker pull {docker-repo}-oss:{version}
--------------------------------------------
endif::[]
=== Configuring Kibana on Docker
The Docker images provide several methods for configuring Kibana. The
conventional approach is to provide a `kibana.yml` file as described in
{kibana-ref}/settings.html[Configuring Kibana], but it's also possible to use
environment variables to define settings.
[[docker-bind-mount-config]]
==== Bind-mounted configuration
One way to configure Kibana on Docker is to provide `kibana.yml` via bind-mounting.
With +docker-compose+, the bind-mount can be specified like this:
["source","yaml",subs="attributes"]
--------------------------------------------
version: '2'
services:
kibana:
image: {docker-image}
volumes:
- ./kibana.yml:/usr/share/kibana/config/kibana.yml
--------------------------------------------
[[docker-env-config]]
==== Environment variable configuration
Under Docker, Kibana can be configured via environment variables. When
the container starts, a helper process checks the environment for variables that
can be mapped to Kibana command-line arguments.
For compatibility with container orchestration systems, these
environment variables are written in all capitals, with underscores as
word separators. The helper translates these names to valid
Kibana setting names.
Some example translations are shown here:
.Example Docker Environment Variables
[horizontal]
**Environment Variable**:: **Kibana Setting**
`SERVER_NAME`:: `server.name`
`KIBANA_DEFAULTAPPID`:: `kibana.defaultAppId`
`XPACK_MONITORING_ENABLED`:: `xpack.monitoring.enabled`
In general, any setting listed in <<settings>> or
{xpack-ref}/xpack-settings.html[{xpack} Settings] can be configured
with this technique.
These variables can be set with +docker-compose+ like this:
["source","yaml",subs="attributes"]
----------------------------------------------------------
version: '2'
services:
kibana:
image: {docker-image}
environment:
SERVER_NAME: kibana.example.org
ELASTICSEARCH_URL: http://elasticsearch.example.org
----------------------------------------------------------
Since environment variables are translated to CLI arguments, they take
precedence over settings configured in `kibana.yml`.
==== Docker defaults
The following settings have different default values when using the Docker
images:
[horizontal]
`server.name`:: `kibana`
`server.host`:: `"0"`
`elasticsearch.url`:: `http://elasticsearch:9200`
In the {xpack} image, the following additional defaults are also set:
[horizontal]
`elasticsearch.username`:: `elastic`
`elasticsearch.password`:: `changeme`
`xpack.monitoring.ui.container.elasticsearch.enabled`:: `true`
These settings are defined in the default `kibana.yml`. They can be overridden
with a <<docker-bind-mount-config,custom `kibana.yml`>> or via
<<docker-env-config,environment variables>>.
IMPORTANT: If replacing `kibana.yml` with a custom version, be sure to copy the
above defaults to the custom file if you want to retain them. If not, they will
be "masked" by the new file.