Thanks Matthias for the input, yes, I was expecting K8S client libraries would need go-restful, but if you look at the go-restful versions client-go and kube-openapi depend on, they are different from what Prometheus’s one, which is v2.16.0. It looks like Prometheus uses it somewhere under the hood, but I could not figure out that dependancy chain yet.

As to the trigger of this question, yeah, Tristan is right, couples of vulnerabilities are reported on go-restful, and I want to know whether Prometheus is affected or not.

Thanks 

BRs
/Gavin



On 11 Feb 2023, at 02:10, Tristan Colgate <tcolg...@gmail.com> wrote:


This is probably due to GitHub dependabot currently flagging a security issue with go-restful (I hit the same issue yesterday).

On Fri, 10 Feb 2023 at 09:13, Matthias Rampke <matth...@prometheus.io> wrote:
You are on the right track with go mod graph: go-restful is a dependency of k8s.io/client-go and k8s.io/kube-openapi, so colloquially "the Kubernetes client library". Prometheus uses it for service discovery, fetching information about pods, endpoints, and services. From a cursory look through github.com/kubernetes, it seems that it is only actually called on the kube-apiserver side, so Prometheus should not encounter any of it, but don't take my word for it.

I am curious now, can you share why you are interested in go-restful? 😄

Best,
Matthias



On Fri, Feb 10, 2023 at 9:59 AM Gavin <gavine...@gmail.com> wrote:

Hello Prometheus team,

May I have a question about how Prometheus uses go-restful ?

We are using Prometheus 2.38.0 and from the binary, we can see go-restful is compiled.

$go version -m prometheus |grep go-restful
      dep   github.com/emicklei/go-restful      v2.16.0+incompatible    h1:rgqiKNjTnFQA6kkhFe16D8epTksy9HQ1MyrbDXSdYhM=

I did grep on Prometheus source code, and failed to find where go-restful is invoked, 'go mod why', 'go mod graph' and 'go list 'don't help much either.

prometheus $ [v2.38.0] [] $ go mod graph |grep go-restful

github.com/prometheus/prometheus github.com/emicklei/go-restful@v2.16.0+incompatible

k8s.io/client-go@v0.24.3 github.com/emicklei/go-restful@v2.9.5+incompatible

k8s.io/kube-openapi@v0.0.0-20220328201542-3ee0da9b0b42 github.com/emicklei/go-restful@v0.0.0-20170410110728-ff4f55a20633

It would be highly appreciated if you could pinpoint why/where go-restful is used.

Thanks!

BRs

/Gavin

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