Limit number of logs collected

[jovial]

• Adds the ability to set the logcount via query parameter or config option. Elasticsearch is better for long term storage.
• Changes the default for log collection to false
  • I think this is a better default as collection is very slow. I'm also no convinced it was working before either.
• Changed approach to using context parameter to make it easier to add extra query parameters in the future i.e we do not have to add a extra parameters to each function each time we want to add a new variable.
• Made config options specific to groups. We could add the global option back if necessary.

[dougszumski]

@jovial suggested extending this to make the number of logs collected configurable via a scrape parameter. Marking as draft.

[jovial]

@jovial suggested extending this to make the number of logs collected configurable via a scrape parameter. Marking as draft.

I did implement this, but it 2025/03/17 09:01:55 error error getting log entries from log service Manager=iDRAC.Embedded.1 app=redfish_exporter collector=ManagerCollector error=failed to retrieve some items: [{"link":"/redfish/v1/Managers/iDRAC.Embedded.1/LogServices/FaultList/Entries?$top=10","error":"501: {\n "error": {\n "code": "Base.1.0.GeneralError",\n "message": "A general error has occurred. See ExtendedInfo for more information.",\n "@Message.ExtendedInfo": [\n {\n "@odata.type" : "#Message.v1_0_0.Message",\n "MessageId": "Base.1.0.InternalError",\n "Message": "not supported, Query parameter top not supported"\n }\n some log services don't support the query parameter:

I'm going to split out the bit for duplicate metrics. Don't know the best way to handle that? Can we detect such a failure and query without it? Or make the option take a list of log services to apply the parameter to? 

[jovial]

Split out here: #8.

[dougszumski]

I like the addition of the context. From a quick glance, it now means that the redfish session is long lived? I.e. persists across scrapes. In that case, we need to handle re-authentication if the session expires / is deleted etc, or have I missed something?