Debug containers are a thing.

Add an ephemeral container to an already running pod, for example to add debugging utilities without restarting the pod.

https://kubernetes.io/docs/reference/kubectl/generated/kubec...

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xmodem 2 hours ago | parent [-]

Yup! They are a good solution to the massive problem you caused for yourself by implementing a different "solution" to a non-problem.

And even that's only true if you assume kubernetes is the only place your container runs where you might want to also debug it.

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NewJazz 2 hours ago | parent [-]

You want to ship every debug utility you will need in every image? Just seems wasteful. What about 3rd party images, you will respin images just to add your preferred toolset?

	▲	xmodem 2 hours ago \| parent [-]
		Nope, not my position at all. I want to have a minimal OS environment with rudimentary tools available with zero extra friction. FROM alpine:latest adds less than 10MB and covers 95% of use cases. Typically depending on the container I will often throw in curl and some other QoL tools too. For the rare cases where you find yourself needing to attach a debugger to your pods running in staging/prod, a debug container is absolutely the right tool to reach for.