docs: update info about config file

[DmitriyLewen]

Description

config file page missed some flags and contains mistakes.

Update this page.

Related discussions

• `offline-scan: true` declared in trivy.yaml config file doesn't work anymore #6529

Checklist

• I've read the guidelines for contributing to this repository.
• I've followed the conventions in the PR title.
• I've added tests that prove my fix is effective or that my feature works.
• I've updated the documentation with the relevant information (if needed).
• I've added usage information (if the PR introduces new options)
• I've included a "before" and "after" example to the description (if the PR is a user interface change).

[DmitriyLewen]

We use scan:

trivy/pkg/flag/report_flags.go

Line 101 in fae710d

ConfigName: "scan.compliance",

But looks like it should be report.
@knqyf263 wdyt?

[knqyf263]

Yes, agree. Also, --show-suppressed should be under report.

trivy/pkg/flag/report_flags.go

Line 106 in fae710d

ConfigName: "scan.show-suppressed",

[DmitriyLewen]

hm... there is 1 problem:
We already have report:

trivy/pkg/flag/report_flags.go

Line 35 in fae710d

ConfigName: "report",

We can add report prefix for all report flags (I mean report.format etc).
But in this case we will have report.report.
@knqyf263 do you have another thought?

[knqyf263]

Flags frequently used can be global without the report prefix.

[knqyf263]

We already have report:

Ah, I missed it. Hmm... it's a problem...

[DmitriyLewen]

@chen-keinan can you take a look? Looks like we don't need nested structs for these flags. Perhaps we can use - instead of ..

e.g. for --node-collector-imageref:

trivy/pkg/flag/kubernetes_flags.go

Lines 77 to 82 in fae710d

	NodeCollectorImageRef = Flag[string]{
	Name: "node-collector-imageref",
	ConfigName: "kubernetes.node.collector.imageref",
	Default: "ghcr.io/aquasecurity/node-collector:0.0.9",
	Usage: "indicate the image reference for the node-collector scan job",
	}

we can use kubernetes.node-collector-imageref and get :

kubernetes 
 node-collector-imageref: ghcr.io/aquasecurity/node-collector:0.0.9

[chen-keinan]

@DmitriyLewen sound good. you can update this flag as well.

[DmitriyLewen]

@chen-keinan take a looks, please - 15e6fca

[knqyf263]

There are some considerations, but let's merge this PR now and keep improving our configuration.