[Request] Document expectations for deleting files in an agent's "downloads" directory

Description

(Describe what needs to be documented. Link to relevant issues.) Document our policy for managing/deleting the files that reside in a Elastic Agent's downloads directory (on a Standalone Elatic Agent this can be found at [install_dir]/elastic-agent-8.3.3-darwin-aarch64/data/elastic-agent-xxxxxxx/downloads for example, but may vary based on OS). Over time the downloads directory beneath an Elastic Agent will accumulate with various files for installing Integrations, similar to the list below:

Based on discussions with Elastic Agent developers, it is safe to delete the contents of the downloads directory to free up space, as long as the downloads directory itself is not deleted, and when deleting the tar.gz files, the asc and sha512 files that go with them are also removed. If a package is deleted but later needed by the Agent, it should be able to fetch it again freshly.

Collaboration

(Choose the expected collaboration model and delete the others.)

• The docs team will lead producing the content

Contact Person: @dedemorton

Suggested Target Release

N/A

Stakeholders

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