From Containers to Kubernetes VM Host OS Container Runtime Benefits Isolation Immutable infrastructure Portability Faster deployments Versioning Ease of sharing Container
From Containers to Kubernetes VM Host OS Container Runtime Benefits Isolation Immutable infrastructure Portability Faster deployments Versioning Ease of sharing Challenges Networking Security Deployments Service Discovery Auto Scaling Persisting Data Logging, Monitoring Access Control Container
From Containers to Kubernetes VM Host OS Container Runtime Benefits Isolation Immutable infrastructure Portability Faster deployments Versioning Ease of sharing Challenges Networking Security Deployments Service Discovery Auto Scaling Persisting Data Logging, Monitoring Access Control Container Scheduler Container
From Containers to Kubernetes VM Host OS Container Runtime Benefits Isolation Immutable infrastructure Portability Faster deployments Versioning Ease of sharing Challenges Networking Security Deployments Service Discovery Auto Scaling Persisting Data Logging, Monitoring Access Control Container Scheduler Container
From Containers to Kubernetes VM Host OS Container Runtime Benefits Isolation Immutable infrastructure Portability Faster deployments Versioning Ease of sharing Challenges Networking Security Deployments Service Discovery Auto Scaling Persisting Data Logging, Monitoring Access Control Container Scheduler Container
From Containers to Kubernetes VM Host OS Container Runtime Benefits Isolation Immutable infrastructure Portability Faster deployments Versioning Ease of sharing Challenges Networking Security Deployments Service Discovery Auto Scaling Persisting Data Logging, Monitoring Access Control Container Scheduler Container
From Containers to Kubernetes VM Host OS Container Runtime Benefits Isolation Immutable infrastructure Portability Faster deployments Versioning Ease of sharing Challenges Networking Security Deployments Service Discovery Auto Scaling Persisting Data Logging, Monitoring Access Control Kubernetes Orchestration of cluster of containers across multiple hosts • Automatic placements, networking, deployments, scaling, roll-out/-back, A/B testing Container Scheduler Container
From Containers to Kubernetes VM Host OS Container Runtime Benefits Isolation Immutable infrastructure Portability Faster deployments Versioning Ease of sharing Challenges Networking Security Deployments Service Discovery Auto Scaling Persisting Data Logging, Monitoring Access Control Kubernetes Orchestration of cluster of containers across multiple hosts • Automatic placements, networking, deployments, scaling, roll-out/-back, A/B testing Declarative – not procedural • Declare target state, reconcile to desired state • Self-healing Container Scheduler Container
Worker Seed Cluster Master Master Master Worker Worker HA Shoot Clusters Worker Worker Worker Worker Worker Worker Worker Worker Worker Worker Worker Worker Worker Gardener - Kubernetes Clusters as a Service Multiple Shoot Cluster Control Planes Worker Master Master Master Worker Worker HA Gardener Cluster Inside a Seed Cluster Worker manages API Server ETCD Scheduler Controller Mgr API Server Scheduler Controller Mgr ETCD ETCD … API Server Gardener Zooming into the Seed Cluster reveals…
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