Set usable and safe client-side rate limit on Kubernetes client

[slok]

Hi!

First of all, thanks for this awesome project!

We started using kube-oidc-proxy to access our clusters. Normally when a user uses the proxy to access a Kubernetes cluster, there isn't any problem, and works like a charm. However, when a machine/bot/app (e.g ArgoCD) starts using it the proxy starts rate-limiting the requests because the Kubernetes client client-side rate limit is not configured.

For example, our Argo CD installation failed constantly connecting to the clusters (get status, send actions...) because of this client-side rate limit.

This PR adds a safe default that it's known that works correctly:

• QPS: 100
• Burst: 100

Some projects that configure this to don't get this kind of problems:

• Prometheus operator
• Cert manager

[jetstack-bot]

Hi @slok. Thanks for your PR.

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[jetstack-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: slok
To complete the pull request process, please assign joshvanl after the PR has been reviewed.
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[slok]

/assign @JoshVanL

[slok]

/release-note-none

[slok]

👋 Hi!

Could someone check this small PR, please :)

Many thanks!

[slok]

👋 Bump! 😄