hack: include scripts for golint, gofmt, spelling, shellcheck, etc.

[neolit123]

was #13, but i managed to corrupt the branch and the PR cannot be re-opened.
now also includes a commit for boilerplate checks.

WRT to presubmit PR verification:
xref #5
fixes #18

for kinder we have this that uses prow's pod-utils:
https://github.com/kubernetes/test-infra/blob/master/config/jobs/kubernetes/kubeadm/kubeadm-presubmits.yaml

similar can be done for kubernetes-sigs/cluster-api-provider-docker/presubmits.yaml

/kind feature
/priority important-soon
/assign @chuckha

[chuckha]

Code looks legit.

One question, where does this code come from? Is there a repo where you're pulling this from or is it copy-pasta tribal knowledge?

[neolit123]

One question, where does this code come from? Is there a repo where you're pulling this from or is it copy-pasta tribal knowledge?

• kinder for the bash script, some based on kind previously.
• boilerplate written today.

[chuckha]

I wonder if there's some way we could share these across similar applications 🤔 oh well, out of scope for this issue.

/approve

Thank you so much for this work 🙏

[k8s-ci-robot]

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[detiber]

/lgtm

[neolit123]

I wonder if there's some way we could share these across similar applications thinking oh well, out of scope for this issue.

i though about that. instead of booking a standalone repo for we can technically have them hosted somewhere (e.g. under kubeadm) and a local, per-project script can wget them and run them on demand.

problems are:

• that most of the scripts need customization as the repos have different demands.
• does not provide, non-air gapped, self contained local verification for developers.