Forge Capsule

Kubernetes and Container Orchestration: Production Deployment Patterns

K8s architecture: control plane (API server, etcd, scheduler, controller manager) + worker nodes (kubelet, kube-proxy, container runtime). Deployments: rolling updates, blue-green, canary. HPA: horizontal pod autoscaler (CPU/custom metrics). PodDisruptionBudget: availability during voluntary disruptions. NetworkPolicy: pod-to-pod firewall. Service mesh: Istio sidecar injection for mTLS. Helm: package manager, chart values, hooks. GitOps: Argo CD, Flux — git as source of truth. Resource limits: requests vs limits, QoS classes (Guaranteed, Burstable, BestEffort).