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Add AWS logs driver awslogs-create-stream option doc #20928

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Oct 3, 2024
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Add AWS logs driver awslogs-create-stream option doc #20928

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21 changes: 21 additions & 0 deletions content/manuals/engine/logging/drivers/awslogs.md
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Original file line number Diff line number Diff line change
Expand Up @@ -127,6 +127,27 @@
> Your AWS IAM policy must include the `logs:CreateLogGroup` permission before
> you attempt to use `awslogs-create-group`.

### awslogs-create-stream

Check warning on line 130 in content/manuals/engine/logging/drivers/awslogs.md

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GitHub Actions / vale 

[vale] reported by reviewdog 🐶
[Docker.HeadingSentenceCase] Use sentence case for headings: 'awslogs-create-stream'.

Raw Output:
{"message": "[Docker.HeadingSentenceCase] Use sentence case for headings: 'awslogs-create-stream'.", "location": {"path": "content/manuals/engine/logging/drivers/awslogs.md", "range": {"start": {"line": 130, "column": 5}}}, "severity": "WARNING"}

By default, the log driver creates the AWS CloudWatch Logs stream used for container log persistence.

Set `awslogs-create-stream` to `false` to disable log stream creation. When disabled, the Docker daemon assumes
the log stream already exists. A use case where this is beneficial is when log stream creation is handled by
another process avoiding redundant AWS CloudWatch Logs API calls.

If `awslogs-create-stream` is set to `false` and the log stream does not exist, log persistence to CloudWatch
fails during container runtime, resulting in `Failed to put log events` error messages in daemon logs.

```console
$ docker run \
--log-driver=awslogs \
--log-opt awslogs-region=us-east-1 \
--log-opt awslogs-group=myLogGroup \
--log-opt awslogs-stream=myLogStream \
--log-opt awslogs-create-stream=false \
...
```

### awslogs-datetime-format

The `awslogs-datetime-format` option defines a multi-line start pattern in [Python
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