Kubernetes for People Who Have to Run It
For the engineer who already has this in production and did not choose it. The request path outside in, scheduling and node pools, the address space that runs out while the hardware sits idle, and a control-plane bootstrap worked through its real failure sequence to a conclusion.
- trending_upAdvanced
- schedule9h 20m
- menu_book12 уроків
- publicEnglish
- workspace_premiumBasic
Вступна інформація
This is the highest level in the Library and it does not open by explaining what a container is for. It assumes you run something. Somebody else built the cluster, or you built it in a hurry two years ago, and you are now the person who gets rung when it stops. If you are still deciding whether to adopt this platform at all, read the fourth module of Securing a Cloud Estate You Didn't Build first — it works through a client who asked for a Kubernetes-scale answer to a spreadsheet-scale problem, and it gives you the words to refuse. That argument is finished and this segment does not reopen it. This one starts one step later. Everything here is taught from something that failed. You will apply an Ingress that is accepted and does nothing, schedule pods that never run, resolve a service name perfectly and connect to nothing, and fill a machine with 32 idle cores and 96 GB of untouched memory until it refuses the next twenty-six pods. That last one is the best technical moment in the source material: a node with headroom for around four hundred pods that can only be given 256 internal addresses per interface, so full-mesh communication caps density long before the processor does. The last module builds a control plane from nothing on a throwaway host. It fails four times first — a leftover file, forwarding disabled, a port already taken, and a bootstrap that hangs for four minutes and then gives up with an error that does not name the cause. The bring-up in the source notes stops at that hang, unfinished. This one finishes it. The thread running through all four modules is a single habit: in this platform a green tick means an object was accepted, and says nothing whatsoever about whether anything acted on it.
План курсу · 4 модулів
lockДоступно з активацією- 01 What Is Actually Running, From the Outside In3 уроків·1h 51m
Everybody learns this platform inwards-out and then has to debug it outwards under pressure at 3am. This module builds the map in the direction an incident arrives from, and ends with the half of it…
- 02 Where Things Land, and Why3 уроків·1h 56m
Anyone can place a pod once. The work is making the arrangement survive contact with eleven other engineers who have never heard of it, and that takes both halves of a mechanism most people only ever…
- 03 The Network, and the Address Space That Ran Out3 уроків·2h 41m
Two labs in this module produce a cluster that is healthy by every measure your monitoring collects and cannot start another workload. The second one leaves no evidence at all after an hour, which is…
- 04 The Bootstrap That Failed3 уроків·2h 52m
Most people reading this will never build a control plane, and that is a reasonable decision rather than a gap. Do it once anyway: the bring-up is the only occasion on which this platform enumerates…
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