# Docker Log Based Metrics

Content:

* [Configuration Parameters](https://app.gitbook.com/s/-LKKSx-3LBTCtaHbg0gl-887967055/pipeline/inputs/docker.md#configuration-parameters)
* [Configuration File](https://app.gitbook.com/s/-LKKSx-3LBTCtaHbg0gl-887967055/pipeline/inputs/docker.md#configuration-file)

### Configuration Parameters

The plugin supports the following configuration parameters:

| Key           | Description                                     | Default |
| ------------- | ----------------------------------------------- | ------- |
| Interval\_Sec | Polling interval in seconds                     | 1       |
| Include       | A space-separated list of containers to include |         |
| Exclude       | A space-separated list of containers to exclude |         |

If you set neither `Include` nor `Exclude`, the plugin will try to get metrics from *all* the running containers.

### Configuration File

Here is an example configuration that collects metrics from two docker instances (`6bab19c3a0f9` and `14159be4ca2c`).

```python
[INPUT]
    Name         docker
    Include      6bab19c3a0f9 14159be4ca2c
[OUTPUT]
    Name   stdout
    Match  *
```

This configuration will produce records like below.

```
[1] docker.0: [1571994772.00555745, {"id"=>"6bab19c3a0f9", "name"=>"postgresql", "cpu_used"=>172102435, "mem_used"=>5693400, "mem_limit"=>4294963200}]
```