CAPV CSI driver isn't passing TLS thumbprint

[kbreit]

/kind bug

What steps did you take and what happened: I have a largely stock configuration and the vsphere-csi-controller is in CrashLoopBackOff. Reviewing the logs I am seeing this:

{"level":"error","time":"2021-03-29T20:53:48.890658758Z","caller":"service/service.go:135","msg":"failed to init controller. Error: Post https://e4vmw0vic06.datalinklabs.local:443/sdk: x509: certificate signed by unknown authority","TraceId":"bb6ce13f-5059-40aa-948d-abe39ee9ceeb","stacktrace":"sigs.k8s.io/vsphere-csi-driver/pkg/csi/service.(*service).BeforeServe\n\t/build/pkg/csi/service/service.go:135\ngithub.com/rexray/gocsi.(*StoragePlugin).Serve.func1\n\t/go/pkg/mod/github.com/rexray/[email protected]/gocsi.go:246\nsync.(*Once).doSlow\n\t/usr/local/go/src/sync/once.go:66\nsync.(*Once).Do\n\t/usr/local/go/src/sync/once.go:57\ngithub.com/rexray/gocsi.(*StoragePlugin).Serve\n\t/go/pkg/mod/github.com/rexray/[email protected]/gocsi.go:211\ngithub.com/rexray/gocsi.Run\n\t/go/pkg/mod/github.com/rexray/[email protected]/gocsi.go:130\nmain.main\n\t/build/cmd/vsphere-csi/main.go:64\nruntime.main\n\t/usr/local/go/src/runtime/proc.go:203"}
{"level":"info","time":"2021-03-29T20:53:48.890709507Z","caller":"service/service.go:110","msg":"configured: \"csi.vsphere.vmware.com\" with clusterFlavor: \"VANILLA\" and mode: \"controller\"","TraceId":"bb6ce13f-5059-40aa-948d-abe39ee9ceeb"}
time="2021-03-29T20:53:48Z" level=info msg="removed sock file" path=/var/lib/csi/sockets/pluginproxy/csi.sock
time="2021-03-29T20:53:48Z" level=fatal msg="grpc failed" error="Post https://e4vmw0vic06.datalinklabs.local:443/sdk: x509: certificate signed by unknown authority"

I am providing the TLS fingerprint via the clusterctl configuration. I did notice the secret/csi-vsphere-config object doesn't include the fingerprint key/value pair.

What did you expect to happen: I'd expect it to either use the TLS fingerprint or give me an option to accept insecure certificates.

Anything else you would like to add: [Miscellaneous information that will assist in solving the issue.]

Environment:

• Cluster-api-provider-vsphere version:
• Kubernetes version: (use kubectl version):
• OS (e.g. from /etc/os-release):

[Promaethius]

/assign

[omniproc]

As a workaround you can add insecure-flag = true to the [Global] section of the csi-vsphere.conf file of the Secret:csi-vsphere-config resource

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/lifecycle stale

[omniproc]

/lifecycle frozen

[omniproc]

It looks like this is the problematic code that's responsible for generating the default flavor template: https://github.com/kubernetes-sigs/cluster-api-provider-vsphere/blob/0679b6187bc6b13e96265a3e4ee778ea8086e9bc/packaging/flavorgen/flavors/crs/csi.go#L129

It should be extended so the Global section looks like this:

[Global]
        cluster-id = "${NAMESPACE}/${CLUSTER_NAME}"
        insecure-flag = false
        thumbprint = "${VSPHERE_TLS_THUMBPRINT}"

With that config I can verify that the CSI integration works as expected and you can review the details of the two new properties, insecure-flag and thumbprint , in the vSphere CSI docs. I'd patch it myself but my Go knowledge is zero and I don't want to mess things up. Hope this piece of information helps to write a quick fix since this looks like 2 lines of code to me.

If patching this it would make sense to add a option to add the ca-file property as well in case someone wants to provide certificates instead of only validating thumbprints (altought SHA256 collisions seem unlikely today, a tomorrow exists).

[yastij]

given the original assignee didn't respond on the original PR I think we can proceed with https://github.com/kubernetes-sigs/cluster-api-provider-vsphere/pull/1220

[omniproc]

right, my bad. I totally missed there was a PR in a duplicated issue for that already.

[srm09]

/unassign /assign @scdubey

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/unassign /assign @scdubey

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[EdgeJ]

Has there been any more work done on this? The issue is obviously still open and the two PRs referencing it look like they were closed without being merged. I would potentially be interested in working on this if there isn't anyone else looking into it.

[PatrickLaabs]

@EdgeJ Have you made any progress on this?

Best Patrick

[EdgeJ]

Hi @PatrickLaabs I never got a response to my comment here, so I never looked into it. Now I no longer have access to (or work with) vsphere, so I have no plans to work on this anymore.

[srm09]

@EdgeJ Apologies for missing the comment on this one. I hope we can have further contributions from you sometime in the future.

[waldner]

This is still happening.