use new GOTOOLCHAIN env to manage go version

[huww98]

Should prevent go from automatically downloading newer toolchains. And ensure the specified version is used.

BTW, this also enables support for platforms other than linux/amd64

Requires at least go1.21 to run prow.sh

See also:

• https://go.dev/doc/toolchain
• handle GOTOOLCHAIN in kube::golang::verify_go_version kubernetes/kubernetes#120279

It works like this:

$ go version
go version go1.23.1 darwin/arm64

$ run_with_go "" go version
2024年11月 9日 星期六 00时59分35秒 CST go1.23.1 /Users/huww98/Downloads$ go version
go version go1.23.1 darwin/arm64

$ run_with_go "1.23.0" go version
2024年11月 9日 星期六 00时59分51秒 CST go1.23.0 /Users/huww98/Downloads$ go version
go version go1.23.0 darwin/arm64

$ run_with_go "1.23.2" go version
go: downloading go1.23.2 (darwin/arm64)
2024年11月 9日 星期六 01时01分21秒 CST go1.23.2 /Users/huww98/Downloads$ go version
go version go1.23.2 darwin/arm64

$ export PATH=~/Downloads/go1.18.10/bin:$PATH
$ go version
go version go1.18.10 darwin/arm64
$ run_with_go "1.23.0" go version
ERROR: Please install Go 1.21+
exit

# remove go from PATH
$ run_with_go "1.21.0" go version
bash: go: command not found
ERROR: Please install Go 1.21+
exit

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: huww98
Once this PR has been reviewed and has the lgtm label, please assign jsafrane for approval. For more information see the Kubernetes Code Review Process.

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[k8s-ci-robot]

Hi @huww98. Thanks for your PR.

I'm waiting for a kubernetes-csi member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[mowangdk]

/ok-to-test

[k8s-ci-robot]

@huww98: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-kubernetes-csi-release-tools-csi-test	6b05f0f	link	false	/test pull-kubernetes-csi-release-tools-csi-test
pull-kubernetes-csi-release-tools-csi-driver-host-path	6b05f0f	link	false	/test pull-kubernetes-csi-release-tools-csi-driver-host-path
pull-kubernetes-csi-release-tools-external-snapshotter	6b05f0f	link	false	/test pull-kubernetes-csi-release-tools-external-snapshotter
pull-kubernetes-csi-release-tools-external-provisioner	6b05f0f	link	false	/test pull-kubernetes-csi-release-tools-external-provisioner

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository. I understand the commands that are listed here.