Add an agent to a fleet

After you've created a fleet, you can add telemetry agents to that fleet.

Add a Fluent Bit agent

Requires Fluent Bit v2.1.8 or later.

To add a Fluent Bit agent to a fleet:

Update the [CUSTOM] section in the configuration file for that agent.
```
[CUSTOM]
    Name calyptia
    API_Key KEY
    Fleet_Name NAME
```
Replace the following values:
- KEY: The API token you use to authenticate with Telemetry Pipeline.
- NAME: The name of the fleet to which your agent will be added.
Run the following command:
```
fluent-bit -c CONFIG
```
Replace CONFIG with the name of the configuration file you updated in the previous step.

Requires Core Agent v23.4.5 or later.

To add an instance of Core Agent to a fleet:

Run the following command:

docker run --rm -ti -v /etc/machine-id:/etc/machine-id -v $PWD/fleet.conf:/fluent-bit/etc/fleet.conf ghcr.io/calyptia/internal/lts:pr-492 -c CONFIG

Replace CONFIG with the name of the configuration file you updated in the previous step.