How do I create a database dump for a running elasticsearch 6.8 cluster in AWS? Is it possible to create it using only the command line?
To create a database dump (also known as a "snapshot") of a running Elasticsearch 6.8 cluster in AWS, you can use the Elasticsearch API and the curl command-line tool.

Here's an example of how you can create a snapshot using the API:

Create a repository: Before creating a snapshot, you need to set up a repository where the snapshot will be stored. You can use the API to create a repository, for example:

```
curl -XPUT '<your-elasticsearch-url>:9200/_snapshot/<repository-name>' -H 'Content-Type: application/json' -d '{
    "type": "s3",
    "settings": {
        "bucket": "<your-s3-bucket>",
        "region": "<your-s3-bucket-region>",
        "base_path": "<base-path-for-snapshots>"
    }
}'
Create the snapshot: Once you have a repository set up, you can use the API to create a snapshot of your cluster:
curl -XPUT '<your-elasticsearch-url>:9200/_snapshot/<repository-name>/<snapshot-name>?wait_for_completion=true'
This will create a snapshot of your entire cluster and store it in the repository.
```

Note: Replace <your-elasticsearch-url>, <repository-name>, <your-s3-bucket>, <your-s3-bucket-region>, <base-path-for-snapshots>, and <snapshot-name> with your specific cluster information.

If you are looking to reduce costs vs AWS, you might consider using an open-source alternative, like Storj.io