Kubernetes
The reconciliation loop, and whether the workload needs what it provides.
5 to work through
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intermediate
A monolith is moved to Kubernetes and the team discovers pod restarts drop in-flight requests and kill long-running jobs. What is actually happening, and what must be configured?
2 min answer -
intermediate
A team of five running four services wants to adopt Kubernetes. Do you support it?
2 min answer -
advanced Multiple choice
A commerce platform runs many teams' services on Kubernetes and must survive flash-sale traffic without one team's workload harming another. What cluster and tenancy design should it use?
2 min answer -
advanced Multiple choice
A latency-sensitive service shows periodic latency spikes. CPU utilisation on the node is 40%. What do you check first?
2 min answer -
advanced
One service restarts unpredictably; another is slow with low CPU. Both run on Kubernetes. What are you looking at?
2 min answer
4 terms in this topic
Kubernetes Operator
A custom controller that encodes operational knowledge for a specific application, reconciling a custom resource towards a desired state the same way…
conceptKubernetes Resource Requests and Limits
The declared minimum a container is guaranteed and the maximum it may consume, which drive scheduling, eviction and throttling in ways that are easy …
conceptPod
The smallest deployable unit in Kubernetes — one or more containers that share a network namespace, storage volumes and a lifecycle, scheduled togeth…
conceptResource Requests and Limits
The declared minimum a container is guaranteed (request) and the maximum it may consume (limit) — the two numbers that determine scheduling, packing …
Neighbouring topics
Cloud Architecture
General material on designing for cloud platforms.
Compute Models
Instances, containers and functions, and what each is priced and shaped for.
Cloud Storage
Object, block and file storage, and the access patterns each suits.
Cloud Databases
Managed relational, key-value, document and analytical services.
Containers
Images, registries, immutability and the deployment model they enable.
Serverless
Scale to zero, per-request billing, cold starts and connection limits.
Autoscaling
Signals, delays and bounds — and the maximum that caps a runaway bill.
Load Balancing
Distributing traffic, health checking, and removing failures from rotation.
Multi-Region Architecture
Surviving a region, and the data consistency price of doing so.
Availability Zones
The unit of correlated physical failure, and what zones do not protect against.
Disaster Recovery
Backup-restore, pilot light, warm standby and active-active postures.
Backup Strategies
Scope, immutability, separation, and the restore drill that makes it real.
Infrastructure as Code
Declarative infrastructure, drift, state files and rebuild-from-empty.
Landing Zones
A governed foundation of accounts, network, identity and guardrails.
Managed Services
Which operational responsibilities actually transfer, and which do not.
Cloud Migration
Per-application disposition, sequencing and the capability change underneath.
Multi-Cloud
Best-of-breed, portfolio and portable — three very different costs.
Edge Computing
Moving compute towards the user, and what cannot follow it.
Cloud Governance
Preventive policy, tagging, quotas and cost and security guardrails.