Hannes Norbert Göring
Mastering Kubernetes – Beginner Edition
#1about 1 minute
The origins and history of the Kubernetes project
Kubernetes evolved from Google's internal Borg system to become the leading open-source container orchestrator.
#2about 3 minutes
A review of containers and early orchestration tools
Containers standardize application packaging, while tools like Docker Swarm and Docker Compose address orchestration needs at different scales.
#3about 4 minutes
How to communicate with and configure a cluster
Use the kubectl command-line tool and declarative YAML manifests to manage and configure your Kubernetes cluster resources.
#4about 4 minutes
Understanding master nodes and worker nodes in a cluster
The master node manages the cluster's state and schedules work, while worker nodes execute the actual containerized applications.
#5about 4 minutes
Using pods as the fundamental unit of execution
A Pod is the smallest deployable unit in Kubernetes, acting as a logical wrapper for one or more containers.
#6about 6 minutes
Managing application replicas and updates with Deployments
Deployments manage ReplicaSets to ensure a specified number of pod replicas are running and to control rolling updates.
#7about 2 minutes
Running pods on specific nodes using DaemonSets
A DaemonSet ensures that a copy of a pod runs on all or a specific subset of nodes in the cluster.
#8about 4 minutes
Exposing applications using Services and Ingress controllers
Services provide stable internal networking and load balancing for pods, while Ingress manages external HTTP/S access to those services.
#9about 3 minutes
How to manage application configuration and secrets
Decouple sensitive information and configuration from your application code using Secrets and ConfigMaps.
#10about 3 minutes
Providing persistent storage for stateful applications
Persistent Volume Claims allow stateful applications like databases to request and mount durable storage that outlives the pod lifecycle.
#11about 1 minute
Isolating resources within a cluster using namespaces
Namespaces function as virtual clusters within a single physical cluster, allowing you to partition resources between different teams or projects.
#12about 3 minutes
A high-level overview of Kubernetes cluster architecture
A complete request flows from an external user through a cloud load balancer, Ingress, Service, and finally to a Pod running the application.
#13about 2 minutes
A practical example of a webshop on Kubernetes
A real-world webshop example demonstrates how to structure microservices like APIs and databases using various Kubernetes resources.
#14about 6 minutes
A summary of concepts and the postal office analogy
Kubernetes acts like a postal service for your applications, where you define the destination and it handles all the complex delivery logistics.
#15about 9 minutes
Q&A on desired state, self-healing, and project scope
Key questions are answered regarding Kubernetes's promise theory, self-healing capabilities, and its suitability for small versus large projects.
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