[PR #9012/67ddb567 backport][stable-9] Dell PwrButton requires a job initated at reboot

[patchback]

This is a backport of PR #9012 as merged into main (67ddb56).

SUMMARY

Dell systems do not change the bios setting PwrButton right away. The command will return changed=true all the time, but it is not applied. Also no job is scheduled at next reboot for the change to take place. This patch aims to fix this issue.

ISSUE TYPE

• Bugfix Pull Request

COMPONENT NAME

redfish_utils / refish_config

ADDITIONAL INFORMATION

1. Use curl to verify the current configuration:

curl -u foobar:foobar https://my.host/redfish/v1/Systems/System.Embedded.1/Bios -k -s | jq '.Attributes.PwrButton'
"Enabled"

2. Run community.general.redfish_config with params:

community.general.redfish_config:
  category: 'Systems'
  command: 'SetBiosAttributes'
  bios_attributes:
    PwrButton: 'Disabled'
  baseuri: 'my.host.com'
  username: 'foobar'
  password: 'foobar'

3. The output will always return {"changed": true, "msg": "Modified BIOS attributes {'PwrButton': 'Disabled'}
4. No update job is scheduled in the iDRAC system.
5. Using curl again to verify no change took place

curl -u foobar:foobar https://my.host/redfish/v1/Systems/System.Embedded.1/Bios -k -s | jq '.Attributes.PwrButton'
"Enabled"

6. One can continuously run this task and the output will always be the same.

With my patch a job will be scheduled and the output will change as expected.

fatal: [127.0.0.1]: FAILED! => {"changed": false, "msg": "HTTP Error 400 on PATCH request to 'https://my.host/redfish/v1/Systems/System.Embedded.1/Bios/Settings', extended message: 'Pending configuration values are already committed, unable to perform another set operation.'"}

I'm not aware currently of what other parameters require a reboot when changing them, thus this patch is limited to only "PwrButton"