# `Docker.Telemetry`
[🔗](https://github.com/joshrotenberg/docker_wrapper_ex/blob/v0.1.2/lib/docker/telemetry.ex#L1)

Telemetry event definitions for docker_wrapper.

## Events

All events are prefixed with `[:docker_wrapper]`.

### Command execution

  * `[:docker_wrapper, :command, :start]` -- emitted before a command runs

    Measurements: `%{system_time: integer()}`

    Metadata: `%{command: module(), args: [String.t()]}`

  * `[:docker_wrapper, :command, :stop]` -- emitted after a command completes

    Measurements: `%{system_time: integer()}`

    Metadata: `%{command: module(), args: [String.t()], exit_code: non_neg_integer()}`

## Attaching handlers

    :telemetry.attach(
      "docker-logger",
      [:docker_wrapper, :command, :stop],
      fn event, measurements, metadata, _config ->
        Logger.info("Docker [#{inspect(metadata.command)}] exited #{metadata.exit_code}")
      end,
      nil
    )

# `events`

```elixir
@spec events() :: [[atom()]]
```

Returns a list of all telemetry events emitted by this library.

---

*Consult [api-reference.md](api-reference.md) for complete listing*