# Fluent-bit Docker Metrics Plugin

### How to Integrate Fluent-bit Docker Metrics Plugin with Apica Ascent

#### 1. Introduction

This guide explains how to send Docker Metrics to Apica Ascent with Fluent-bit, and how to view them.

#### 2. Configure the Docker Metric Plugin in Fluent-bit

Update your Fluent-bit.conf with an input and filter for the Docker Metric Plugin:

```
[INPUT]
    Name docker
    Include      9935eb87ac23
    Tag  docker_metrics
```

```
[FILTER]
    Name   modify
    Match  docker_metrics
    Add    namespace Fluent-bit
    Add    app_name Docker_Metrics
 
```

Restart Fluent-bit with `systemctl restart fluent-bit` and check the status with `systemctl status fluent-bit` to verify that it’s running correctly.

If you want to monitor multiple docker containers it needs to be in the following format (a space in between them): \<DockerID> \<DockerID>

Helpful links:

* [Official Plugin documentation.](https://docs.fluentbit.io/manual/data-pipeline/outputs)
* [Set up Fluent-bit for Apica Ascent.](https://docs.apica.io/integrations/list-of-integrations/fluent-bit#fluent-bit-configuration)

#### 3. Verify Logs in Apica Ascent

1\.     Log in to Apica Ascent

2\.     Navigate to Explore → Logs & Insights

3\.     Look for the namespace and application name specified in the config file.<br>

Example:

<figure><img src="/files/AqUKauTICoQQ2ZEvIsiH" alt=""><figcaption></figcaption></figure>

#### 4. Example logs

Message:

{% code overflow="wrap" %}

```
{"app_name":"Docker_Metrics","cpu_used":423039433,"date":1764676638.402941,"id":"9935eb87ac23","mem_limit":9223372036854772000,"mem_used":3567616,"name":"test-container","namespace":"Fluent-bit"}
```

{% endcode %}

StructuredData :

```
_size: 195
cpu_used: 423039433
date: 1764676638.402941
id: 9935eb87ac23
mem_limit: 9223372036854772000
mem_used: 3567616
name: test-container
```

#### 5. Troubleshooting

&#x20;[**Fluent-bit Troubleshooting**](https://docs.apica.io/integrations/list-of-integrations/fluent-bit/fluent-bit-troubleshooting)

* Find running containers: docker ps
* Find all containers: docker ps -a
* Check docker.sock permissions: ls -l /var/run/docker.sock
* Test docker API: sudo curl --unix-socket /var/run/docker.sock <http://localhost/containers/json>
* Verify if there are any metrics to scrape: docker stats


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

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

```
GET https://docs.apica.io/integrations/list-of-integrations/fluent-bit/fluent-bit-docker-metrics-plugin.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.