{"id":"gotok8s-kube-apiserver","name":"kube-apiserver","homepage":"https://hub.docker.com/r/gotok8s/kube-apiserver","repo_url":"https://hub.docker.com/r/gotok8s/kube-apiserver","category":"infrastructure","subcategories":[],"tags":["infrastructure","kubernetes","api-server","control-plane","rest","rbac","admission"],"what_it_does":"kube-apiserver is the Kubernetes API server component that exposes the Kubernetes control-plane API (REST over HTTPS) used by kubectl, controllers, and other clients to manage cluster resources. It implements authentication, authorization, admission, persistence via etcd, and core admission/validation pathways.","use_cases":["Managing Kubernetes cluster resources via the Kubernetes API (create/read/update/delete and watch)","Building controllers/operators that interact with Kubernetes resources","Cluster administration and automation through kubectl or client libraries","Testing and development of Kubernetes extensions and admission/authorization behaviors"],"not_for":["Acting as a standalone general-purpose web API (it is tightly coupled to Kubernetes control-plane semantics)","Serving external/public internet traffic without an appropriate fronting layer and Kubernetes-native authentication/authorization design","Workloads that require high-level business-domain APIs rather than infrastructure control"],"best_when":"You are running or extending a Kubernetes cluster and need standard Kubernetes API behavior and compatibility.","avoid_when":"You need a simple single-purpose HTTP service; you should instead use domain-specific APIs or managed platforms rather than a full Kubernetes control-plane component.","alternatives":["Kubernetes API server (standard upstream)","Managed Kubernetes control planes (EKS/GKE/AKS)","Direct etcd clients (only for specialized/internal use—generally not recommended for normal resource operations)"],"af_score":56.8,"security_score":79.2,"reliability_score":52.5,"package_type":"mcp_server","discovery_source":["docker_mcp"],"priority":"low","status":"evaluated","version_evaluated":null,"last_evaluated":"2026-04-04T19:46:20.918219+00:00","interface":{"has_rest_api":true,"has_graphql":false,"has_grpc":false,"has_mcp_server":false,"mcp_server_url":null,"has_sdk":false,"sdk_languages":[],"openapi_spec_url":null,"webhooks":false},"auth":{"methods":["Bearer token authentication","Client certificate authentication (mutual TLS)","Webhook authentication (optional, Kubernetes mechanism)","Service account tokens (via Kubernetes authn)"],"oauth":false,"scopes":true,"notes":"Authentication/authorization in Kubernetes is typically configured via API server flags and RBAC; authorization is enforced via RBAC policies and optional webhook mechanisms. This is not OAuth in the external SaaS sense; it is Kubernetes-native authn/authz."},"pricing":{"model":null,"free_tier_exists":false,"free_tier_limits":null,"paid_tiers":[],"requires_credit_card":false,"estimated_workload_costs":null,"notes":"Self-hosted open-source component; operational costs depend on cluster size and infrastructure."},"requirements":{"requires_signup":false,"requires_credit_card":false,"domain_verification":false,"data_residency":[],"compliance":[],"min_contract":null},"agent_readiness":{"af_score":56.8,"security_score":79.2,"reliability_score":52.5,"mcp_server_quality":0.0,"documentation_accuracy":40.0,"error_message_quality":0.0,"error_message_notes":null,"auth_complexity":35.0,"rate_limit_clarity":45.0,"tls_enforcement":95.0,"auth_strength":85.0,"scope_granularity":80.0,"dependency_hygiene":60.0,"secret_handling":70.0,"security_notes":"Security largely depends on Kubernetes configuration (TLS, RBAC, admission control, audit logging, network policies, and secret management). API server traffic should be served over HTTPS with strong authn/authz. As an upstream control-plane component, it typically has mature security primitives, but safe use requires correct cluster hardening and least-privilege RBAC.","uptime_documented":30.0,"version_stability":75.0,"breaking_changes_history":45.0,"error_recovery":60.0,"idempotency_support":"true","idempotency_notes":"Kubernetes supports idempotent semantics for some operations depending on HTTP method, client behavior, and resource versioning; many write operations are subject to optimistic concurrency (e.g., resourceVersion) and may require retries with backoff on conflicts.","pagination_style":"none","retry_guidance_documented":false,"known_agent_gotchas":["Watch streams are long-lived; agents must handle reconnects/resync rather than expecting single responses.","Kubernetes operations may fail with transient errors (e.g., conflicts/resourceVersion) or admission rejections; safe retry conditions are non-trivial.","Authentication/authorization is cluster-specific; agents need correct service account/credential setup and permissions (RBAC).","CRDs and API discovery are dynamic; agents should use discovery endpoints or stable group/version behavior instead of hardcoding everything."]}}