If you stumbled on any of the above,
Exposes the Service on each Node’s IP at a static port, allowing you to reach the Service from outside the cluster.
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A flexible, extensible DNS server that serves as the cluster-wide standard DNS for service discovery.
Unlike Docker volumes, Kubernetes storage is cluster-aware. If you stumbled on any of the above,
Automatically sets the resource requirements and limits for your containers.
Reading these 50 concepts on a screen is one thing. Having them on your desk during a production incident is another.
This isn't just a list; it’s a for your career. Whether you are prepping for the CKA (Certified Kubernetes Administrator) or architecting a migration for a Fortune 500 company, these 50 concepts are your foundation.
As a DevOps engineer, mastering Kubernetes isn't just about learning a tool—it's about adopting a new for how software exists in the world. It’s the shift from managing "servers" to orchestrating ephemeral workloads that breathe, scale, and heal themselves. Unlike Docker volumes, Kubernetes storage is cluster-aware
: The software responsible for running containers (e.g., containerd, CRI-O). II. Workloads and Objects 50 Kubernetes Concepts Every DevOps Engineer ... - GitHub
The software responsible for running containers (e.g., containerd, CRI-O).
Kubernetes categorizes Pods into Guaranteed , Burstable , and BestEffort based on their resource requests and limits to determine how they handle node memory pressure. Part 6: Security, Governance, & Observability Keeping your cluster secure, compliant, and monitored.
To help you keep these 50 essential concepts at your fingertips during migrations, debugging sessions, or interview preparation, we have compiled this comprehensive guide into a clean, searchable, and print-ready format. Having them on your desk during a production
A container that runs alongside the main application container in a Pod to extend or enhance its functionality (e.g., logging proxies or service mesh sidecars).
Indicates whether the container is running; if it fails, K8s kills and restarts it.
Kubernetes is not one tool—it’s a . No one memorizes all 50 on day one. But the best DevOps engineers know each concept exists, when to use it, and where to look up the exact syntax.
Rules that allow you to dictate whether Pods should be scheduled close to each other (co-located) or spread apart across different topology domains. 6. Observability, Security & Advanced Extensibility
Key/Value pairs attached to objects (like Pods) that are used to organize and to select subsets of objects.