Kubernetes session by Priyadarshini Anand
- 1. Presentation by – Priyadarshini Anand ([email protected]) Kubernetes on Ship of Containers
- 3. Topics u What is Kubernetes(K8s) u Features of K8s u K8s Architecture u K8s Components u K8s Work Units u Demo
- 4. What is Kubernetes(K8s) u A platform for automating deployment, scaling and operations of application containers across cluster of nodes u Adds value to business by Ø reducing hardware cost Ø minimizing maintenance cost Ø lowering down time u Open Ø Open community Ø Open design Ø Open source Ø Open to ideas
- 5. Features of K8s u Automatic deployment u Self-healing inside cluster u Service discovery and load balancing u Setting exciting limits for Scaling u Automated rollouts and rollbacks u Storage Orchestration u Networking
- 6. K8s Architecture Users Master Minions
- 8. K8s Work Units: Pod u Smallest unit u Collection of logically related containers: u sharing IP address, port space and volumes u Scheduled, scaled and terminated together as unit u Represents like a “Virtual host” u If node dies, its pods also dies Node K8s Master K8s Minion Pod Node Container Container Container Container Pod
- 9. K8s Work Units: Pod Controller u Works as supervisor to automate: Ø pod deployment in cluster Ø self-healing of pods Ø Replication Ø roll out management u Different Pod Controllers: Ø Daemon Set Ø Job Ø Replication Controller Ø Replication Set Ø Deployment Node K8s Master K8s Minion Pod Node Container Container Container Container Pod Pod Controller Kubelet
- 10. K8s Work Units: Services u An interface with IP and port to access group of pods u Allows for abstracted configuration u Allows for mobility u Works as basic load balancer u Defines TCP or UDP port reservation u Decouples from pods and pod controllers u Pods are labelled to receive traffic and its container’s port name will be included in service configuration u Consumer uses service IP and port and request is forwarded to specified pods in round robin fashion
- 11. K8s Work Units: Services
- 12. Demo