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log_level metadata is not accurate #4747

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jen-huang opened this issue May 14, 2024 · 3 comments
Open

log_level metadata is not accurate #4747

jen-huang opened this issue May 14, 2024 · 3 comments
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bug Something isn't working Team:Elastic-Agent-Control-Plane Label for the Agent Control Plane team

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@jen-huang
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Follow up to the discussion in elastic/kibana#180778

Reproduction:

  1. Enroll a new agent into a policy that already has log level set to debug
  2. Observe that the agent successfully sent debug logs
  3. View agent document, observe that local_metadata.elastic.agent.log_level is reporting info even though it is running at debug level from its policy
@jen-huang jen-huang added the bug Something isn't working label May 14, 2024
@jen-huang jen-huang added the Team:Elastic-Agent-Control-Plane Label for the Agent Control Plane team label May 14, 2024
@elasticmachine
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Pinging @elastic/elastic-agent-control-plane (Team:Elastic-Agent-Control-Plane)

@nchaulet
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FYI where it's used in kibana
Screenshot 2024-05-16 at 11 29 16 AM

jen-huang added a commit to elastic/kibana that referenced this issue May 16, 2024
‼️ Should be reverted if
elastic/elastic-agent#4747 does not make
8.15.0.

## Summary

Resolves #180778 

This PR allows agent log level to be reset back to the level set on its
policy (or if not set, simply the default agent level, see
elastic/elastic-agent#3090).

To achieve this, this PR:
- Allows `null` to be passed for the log level settings action, i.e.:

```
POST kbn:/api/fleet/agents/<AGENT_ID>/actions
{"action":{"type":"SETTINGS","data":{"log_level": null}}}
```
- Enables the agent policy log level setting implemented in
#180607
- Always show `Apply changes` on the agent details > Logs tab
- For agents >= 8.15.0, always show `Reset to policy` on the agent
details > Logs tab
- Ensures both buttons are disabled if user does not have access to
write to agents

<img width="1254" alt="image"
src="https://github.com/elastic/kibana/assets/1965714/bcdf763e-2053-4071-9aa8-8bcb57b8fee1">

<img width="1267" alt="image"
src="https://github.com/elastic/kibana/assets/1965714/182ac54d-d5ad-435f-9376-70bb24f288f9">

### Caveats
1. The reported agent log level is not accurate if agent is using the
level from its policy and does not have a log level set on its own level
(elastic/elastic-agent#4747), so the initial
selection on the agent log level could be wrong
2. We have no way to tell where the log level came from
(elastic/elastic-agent#4748), so that's why
`Apply changes` and `Reset to policy` are always shown

### Testing
Use the latest `8.15.0-SNAPSHOT` for agents or fleet server to test this
change

### Checklist

Delete any items that are not applicable to this PR.

- [x] Any text added follows [EUI's writing
guidelines](https://elastic.github.io/eui/#/guidelines/writing), uses
sentence case text and includes [i18n
support](https://github.com/elastic/kibana/blob/main/packages/kbn-i18n/README.md)
- [x] [Unit or functional
tests](https://www.elastic.co/guide/en/kibana/master/development-tests.html)
were updated or added to match the most common scenarios
@jen-huang
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FYI where it's used in kibana

Also displayed on the details tab :

image

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