# DEB Package (Debian/Ubuntu)

This article explains how to install stable versions of `fluent-package` deb packages, the stable Fluentd distribution packages maintained by [Fluentd Project](https://www.fluentd.org/).

## What is `fluent-package`?

Please see [fluent-package-v5-vs-td-agent](/quickstart/fluent-package-v5-vs-td-agent.md).

## How to install `fluent-package`

{% hint style="info" %}
NOTE:

* `fluent-package` will be shipped in two flavors - normal release version and LTS (Long Term Support) version. See [Scheduled support lifecycle announcement about Fluent Package v6](https://www.fluentd.org/blog/fluent-package-v6-scheduled-lifecycle) about difference between this two flavors.
* If you upgrade from `td-agent` v4, See [Upgrade to fluent-package v5](https://www.fluentd.org/blog/upgrade-td-agent-v4-to-v5).
* Do not directly upgrade from v4 to v6. Such a workflow is not supported. It causes a trouble. Upgrade in stages. (v4 to v5, then v5 to v6)
  {% endhint %}

{% hint style="danger" %}
The following are deprecated (EOL) fluent-package and td-agent information:

* About [Fluent Package (fluent-package) v5 (EOL)](https://www.fluentd.org/blog/schedule-for-fluent-package-5-eol), See [Install by DEB Package v5](/installation/obsolete-installation/fluent-package-v5-eol-installation/install-by-deb-fluent-package-v5.md).
* About [Treasure Agent (td-agent) v4 (EOL)](https://www.fluentd.org/blog/schedule-for-td-agent-4-eol), See [Install by DEB Package v4](/installation/obsolete-installation/treasure-agent-v4-eol-installation/install-by-deb-td-agent-v4.md).
* About [Treasure Agent (td-agent) 3 will not be maintained anymore](https://www.fluentd.org/blog/schedule-for-td-agent-3-eol), see [Install by DEB Package v3](/installation/obsolete-installation/treasure-agent-v3-eol-installation/install-by-deb-td-agent-v3.md).
  {% endhint %}

### Step 0: Before Installation

Please follow the [Pre-installation Guide](/installation/before-install.md) to configure your OS properly.

### Step 1: Install from Apt Repository

NOTE: If your OS is not supported, consider [gem installation](/installation/install-by-gem.md) instead.

A shell script is provided to automate the installation process for each version. The shell script registers a new apt repository at `/etc/apt/sources.list.d/fluent.sources` (or `/etc/apt/sources.list.d/fluent-lts.sources`) and installs the `fluent-package` deb package.

#### For Ubuntu Resolute:

**fluent-package 6 (LTS)**

```bash
curl -fsSL https://fluentd.cdn.cncf.io/sh/install-ubuntu-resolute-fluent-package6-lts.sh | sh
```

{% hint style="info" %}
fluent-package for normal release version is not ready yet. LTS version is recommended now.
{% endhint %}

#### For Ubuntu Noble:

**fluent-package 6 (LTS)**

```bash
curl -fsSL https://fluentd.cdn.cncf.io/sh/install-ubuntu-noble-fluent-package6-lts.sh | sh
```

**fluent-package 6**

```bash
curl -fsSL https://fluentd.cdn.cncf.io/sh/install-ubuntu-noble-fluent-package6.sh | sh
```

#### For Ubuntu Jammy:

**fluent-package 6 (LTS)**

```bash
curl -fsSL https://fluentd.cdn.cncf.io/sh/install-ubuntu-jammy-fluent-package6-lts.sh | sh
```

**fluent-package 6**

```bash
curl -fsSL https://fluentd.cdn.cncf.io/sh/install-ubuntu-jammy-fluent-package6.sh | sh
```

#### For Debian Trixie:

**fluent-package 6 (LTS)**

```bash
curl -fsSL https://fluentd.cdn.cncf.io/sh/install-debian-trixie-fluent-package6-lts.sh | sh
```

**fluent-package 6**

```bash
curl -fsSL https://fluentd.cdn.cncf.io/sh/install-debian-trixie-fluent-package6.sh | sh
```

#### For Debian Bookworm:

**fluent-package 6 (LTS)**

```bash
curl -fsSL https://fluentd.cdn.cncf.io/sh/install-debian-bookworm-fluent-package6-lts.sh | sh
```

**fluent-package 6**

```bash
curl -fsSL https://fluentd.cdn.cncf.io/sh/install-debian-bookworm-fluent-package6.sh | sh
```

### Step 2: Launch Daemon

### `systemd`

Use `/lib/systemd/system/fluentd` script to `start`, `stop`, or `restart` the agent:

```
$ sudo systemctl start fluentd.service
$ sudo systemctl status fluentd.service
 sudo systemctl status fluentd
● fluentd.service - fluentd: All in one package of Fluentd
     Loaded: loaded (/lib/systemd/system/fluentd.service; enabled; vendor preset: enabled)
     Active: active (running) since Wed 2023-08-16 08:18:22 UTC; 18s ago
       Docs: https://docs.fluentd.org/
    Process: 494 ExecStart=/opt/fluent/bin/fluentd --log $FLUENT_PACKAGE_LOG_FILE --daemon /var/run/fluent/fluentd.pid $FLUENT_PACKAGE_OPTI>
   Main PID: 826 (fluentd)
      Tasks: 9 (limit: 4660)
     Memory: 95.4M
        CPU: 731ms
     CGroup: /system.slice/fluentd.service
             ├─826 /opt/fluent/bin/ruby /opt/fluent/bin/fluentd --log /var/log/fluent/fluentd.log --daemon /var/run/fluent/fluentd.pid
             └─833 /opt/fluent/bin/ruby -Eascii-8bit:ascii-8bit /opt/fluent/bin/fluentd --log /var/log/fluent/fluentd.log --daemon /var/run>
```

To customize `systemd` behavior, put your `fluentd.service` in `/etc/systemd/system`.

NOTE: In fluent-package v5, path is different. `/opt/fluent/bin` instead of `/opt/td-agent/bin`

### Step 3: Post Sample Logs via HTTP

The default configuration (`/etc/fluent/fluentd.conf`) is to receive logs at an HTTP endpoint and route them to `stdout`. For `fluent-package` logs, see `/var/log/fluent/fluentd.log`.

You can post sample log records with `curl` command:

```
$ curl -X POST -d 'json={"json":"message"}' http://localhost:8888/debug.test
$ tail -n 1 /var/log/fluent/fluentd.log
2018-01-01 17:51:47 -0700 debug.test: {"json":"message"}
```

## Next Steps

You are now ready to collect real logs with Fluentd. Refer to the following tutorials on how to collect data from various sources:

* Basic Configuration
  * [Config File](/configuration/config-file.md)
* Application Logs
  * [Ruby](/language-bindings/ruby.md), [Java](/language-bindings/java.md), [Python](/language-bindings/python.md), [PHP](/language-bindings/php.md),

    [Perl](/language-bindings/perl.md), [Node.js](/language-bindings/nodejs.md), [Scala](/language-bindings/scala.md)
* Examples
  * [Store Apache Log into Amazon S3](/how-to-guides/apache-to-s3.md)
  * [Store Apache Log into MongoDB](/how-to-guides/apache-to-mongodb.md)
  * [Data Collection into HDFS](/how-to-guides/http-to-hdfs.md)

{% hint style="info" %}
There are some commercial supports for Fluentd, see [Enterprise Services](https://www.fluentd.org/enterprise_services). If you use Fluentd on production, Let's share your use-case/testimonial on [Testimonials](https://www.fluentd.org/testimonials) page. Please consider to feedback via [GitHub](https://github.com/fluent/fluentd-website/issues/new?template=testimonials.yml).
{% endhint %}

If this article is incorrect or outdated, or omits critical information, please [let us know](https://github.com/fluent/fluentd-docs-gitbook/issues?state=open). [Fluentd](http://www.fluentd.org/) is an open-source project under [Cloud Native Computing Foundation (CNCF)](https://cncf.io/). All components are available under the Apache 2 License.


---

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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.fluentd.org/installation/install-fluent-package/install-by-deb-fluent-package.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.