OpenSearch/docs/reference/setup/install/deb.asciidoc

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[[deb]]
=== Install Elasticsearch with Debian Package
The Debian package for Elasticsearch can be <<install-rpm,downloaded from our website>>
or from our <<deb-repo,APT repository>>. It can be used to install
Elasticsearch on any Debian-based system such as Debian and Ubuntu.
The latest stable version of Elasticsearch can be found on the
link:/downloads/elasticsearch[Download Elasticsearch] page. Other versions can
be found on the link:/downloads/past-releases[Past Releases page].
[[deb-key]]
==== Import the Elasticsearch PGP Key
include::key.asciidoc[]
[source,sh]
-------------------------
wget -qO - https://packages.elastic.co/GPG-KEY-elasticsearch | sudo apt-key add -
-------------------------
[[deb-repo]]
==== Installing from the APT repository
You may need to install the `apt-transport-https` package on Debian before proceeding:
[source,sh]
--------------------------------------------------
sudo apt-get install apt-transport-https
--------------------------------------------------
Save the repository definition to +/etc/apt/sources.list.d/elasticsearch-{major-version}.list+:
["source","sh",subs="attributes,callouts"]
--------------------------------------------------
echo "deb https://packages.elastic.co/elasticsearch/{major-version}/debian stable main" | sudo tee -a /etc/apt/sources.list.d/elasticsearch-{major-version}.list
--------------------------------------------------
[WARNING]
==================================================
Do not use `add-apt-repository` as it will add a `deb-src` entry as well, but
we do not provide a source package. If you have added the `deb-src` entry, you
will see an error like the following:
Unable to find expected entry 'main/source/Sources' in Release file
(Wrong sources.list entry or malformed file)
Delete the `deb-src` entry from the `/etc/apt/sources.list` file and the
installation should work as expected.
==================================================
You can install the Elasticsearch Debian package with:
[source,sh]
--------------------------------------------------
sudo apt-get update && sudo apt-get install elasticsearch
--------------------------------------------------
[WARNING]
==================================================
If two entries exist for the same Elasticsearch repository, you will see an error like this during `apt-get update`:
["literal",subs="attributes,callouts"]
Duplicate sources.list entry https://packages.elastic.co/elasticsearch/{major-version}/debian/ ...`
Examine +/etc/apt/sources.list.d/elasticsearch-{major-version}.list+ for the duplicate entry or locate the duplicate entry amongst the files in `/etc/apt/sources.list.d/` and the `/etc/apt/sources.list` file.
==================================================
[[install-deb]]
==== Download and install the Debian package manually
The Debian package for Elastisearch v{version} can be downloaded from the website and installed as follows:
["source","sh",subs="attributes"]
--------------------------------------------
wget https://download.elastic.co/elasticsearch/release/org/elasticsearch/distribution/deb/elasticsearch/{version}/elasticsearch-{version}.deb
sha1sum elasticsearch-{version}.deb <1>
sudo dpkg -i elasticsearch-{version}.deb
--------------------------------------------
<1> Compare the SHA produced by `sha1sum` or `shasum` with the
https://download.elastics.co/elasticsearch/release/org/elasticsearch/distribution/deb/elasticsearch/{version}/elasticsearch-{version}.deb.sha1[published SHA].
include::init-systemd.asciidoc[]
[[deb-running-init]]
==== Running Elasticsearch with SysV `init`
Use the `update-rc.d` command to configure Elasticsearch to start automatically
when the system boots up:
[source,sh]
--------------------------------------------------
sudo update-rc.d elasticsearch defaults 95 10
--------------------------------------------------
Elasticsearch can be started and stopped using the `service` command:
[source,sh]
--------------------------------------------
sudo -i service elasticsearch start
sudo -i service elasticsearch stop
--------------------------------------------
If Elasticsearch fails to start for any reason, it will print the reason for
failure to STDOUT. Log files can be found in `/var/log/elasticsearch/`.
[[deb-running-systemd]]
include::systemd.asciidoc[]
[[deb-check-running]]
include::check-running.asciidoc[]
[[deb-configuring]]
==== Configuring Elasticsearch
Elasticsearch loads its configuration from the `/etc/elasticsearch/elasticsearch.yml`
file by default. The format of this config file is explained in
<<settings>>.
The Debian package also has a system configuration file (`/etc/default/elasticsearch`),
which allows you to set the following parameters:
include::sysconfig-file.asciidoc[]
NOTE: Distributions that use `systemd` require that system resource limits be
configured via `systemd` rather than via the `/etc/sysconfig/elasticsearch`
file. See <<systemd>> for more information.
[[deb-layout]]
==== Directory layout of Debian package
The Debian package places config files, logs, and the data directory in the appropriate
locations for a Debian-based system:
[cols="<h,<,<m,<m",options="header",]
|=======================================================================
| Type | Description | Default Location | Setting
| home
| Elasticsearch home directory or `$ES_HOME`
| /usr/share/elasticsearch
d|
| bin
| Binary scripts including `elasticsearch` to start a node
and `elasticsearch-plugin` to install plugins
| /usr/share/elasticsearch/bin
d|
| conf
| Configuration files including `elasticsearch.yml`
| /etc/elasticsearch
| path.conf
| conf
| Environment variables including heap size, file descriptors.
| /etc/default/elasticsearch
d|
| data
| The location of the data files of each index / shard allocated
on the node. Can hold multiple locations.
| /var/lib/elasticsearch
| path.data
| logs
| Log files location.
| /var/logs/elasticsearch
| path.logs
| plugins
| Plugin files location. Each plugin will be contained in a subdirectory.
| /usr/share/elasticsearch/plugins
| path.plugins
| repo
| Shared file system repository locations. Can hold multiple locations. A file system repository can be placed in to any subdirectory of any directory specified here.
d| Not configured
| path.repo
| script
| Location of script files.
| /etc/elasticsearch/scripts
| path.script
|=======================================================================
include::next-steps.asciidoc[]