remove use of json-iterator / reflect2

[liggitt]

The approach taken by json-iterator and its reflect library is not long-term stable (it pins to internal details of the stdlib reflect package), and requires maintenance per go release, which does not appear to be sustainable golang/go#48238 (comment)

Minimum versions to work with go1.18+ are:

• github.com/json-iterator/go v1.1.12
• github.com/modern-go/reflect2 v1.0.2

In addition to the maintenance aspect, it is hard to reason about the safety of the implementation (golang/go#48238 (comment))

I'm exploring what it would look like to use the stdlib json decoder as a base and add in the features we rely on (case-sensitive keys, preservation of ints/floats, etc) in kubernetes/kubernetes#105030

I would encourage this project to consider the long-term sustainability/safety of the json-iterator dependency as well.

[lavalamp]

I think the uses here are benchmarked and it should be easy to tell if swapping out json-iterator causes a regression.

[liggitt]

kubernetes/kubernetes#105030 is now merged and this is on the short-list of things in k/k that still use json-iterator

[liggitt]

it looks like this uses really specialized serializing capabilities provided by json-iterator... not sure swapping will be easy

[k8s-triage-robot]

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/lifecycle stale

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/lifecycle rotten

[k8s-triage-robot]

The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

This bot triages issues and PRs according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
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/close

[k8s-ci-robot]

@k8s-triage-robot: Closing this issue.

In response to this:

The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

This bot triages issues and PRs according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
• After 30d of inactivity since lifecycle/rotten was applied, the issue is closed

You can:

• Reopen this issue or PR with /reopen
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/close

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[liggitt]

/reopen
/lifecycle frozen

[k8s-ci-robot]

@liggitt: Reopened this issue.

In response to this:

/reopen
/lifecycle frozen

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