[Fleet] Upgrade and auto-upgrade of packages

[ph]

Summary of the problem

We are expecting the user to uses multiples integrations, integrations will have their own release schedule
and will not be tied to a specific stack release process. This cause a few problems:

• How do I know that integration can be updated?
• How do I know if my system is up to date?

User stories:

• As a fleet administrator I should be able to see what integrations need to be upgraded.
• As a fleet administrator I should be able to turn on background update of integrations.
• As a fleet administrator I should know what integrations have been upgraded in the background.
• As a fleet administrator I should know if any issues happened if some auto-upgraded failed.
• As a fleet administrator I should know which Agent configuration can be updated to use the new version of the integration.

Other*

Upgrading an integration package doesn't mean that configuration is updated.

[elasticmachine]

Pinging @elastic/ingest-management (Team:Ingest Management)

[ph]

cc @neptunian Can you take a look if there any others user stories we are missing?

[ph]

maybe linked to the deployment ui #72537

[mostlyjason]

Related to #64253

[mostlyjason]

@jonathan-buttner and @neptunian can you propose updates to the user stories above based on what we discussed?

[jonathan-buttner]

One that I can think of is:
As a non-administrator I should be made aware that integrations are available for upgrade.

I think it could be useful for a non-admin user (a user that doesn't have the right privileges to install packages etc) to know that integrations are available for upgrade even though they might not be able to do the install. Maybe they could reach out to the admin to do the installation for them.

I'm not sure how to phrase the user store or if there really needs to be one, but I think there is value in users of the Security app being made aware that there is an upgrade available specifically for the endpoint integration.

[neptunian]

It doesn't like we have a solution for auto upgrades yet, but assuming we find one, I don't think the user stories have changed and they seem to cover the correct cases. I do agree with @jonathan-buttner that it could be useful for any user to know an upgrade is available.