{"id":"labring-metrics-server","name":"metrics-server","homepage":"https://hub.docker.com/r/labring/metrics-server","repo_url":"https://hub.docker.com/r/labring/metrics-server","category":"monitoring","subcategories":[],"tags":["kubernetes","metrics","observability","autoscaling","hpa","kubectl-top"],"what_it_does":"metrics-server is a Kubernetes add-on that aggregates resource metrics (CPU/memory) from kubelets and serves them to the Kubernetes API for components like kubectl top and Horizontal Pod Autoscaler (HPA).","use_cases":["Autoscaling workloads based on CPU/memory utilization (HPA)","Debugging/observability via kubectl top","Centralized metrics aggregation within a Kubernetes cluster"],"not_for":["Metrics collection outside Kubernetes","Production-grade long-term metrics storage/analytics (e.g., Prometheus storage backend)","GPU metrics collection (not typical for metrics-server)"],"best_when":"You need lightweight CPU/memory metrics in-cluster for kubectl top and HPA, and you’re not already running a full metrics pipeline.","avoid_when":"You require high-cardinality/long-retention metrics, custom metrics types, or non-CPU/memory metrics (use Prometheus Adapter or other monitoring stack).","alternatives":["Prometheus + Grafana","Kubernetes Metrics Pipeline with kube-state-metrics and Prometheus","metrics-server alternatives such as Prometheus Adapter for custom/external metrics"],"af_score":34.8,"security_score":56.2,"reliability_score":43.8,"package_type":"mcp_server","discovery_source":["docker_mcp"],"priority":"low","status":"evaluated","version_evaluated":null,"last_evaluated":"2026-04-04T21:25:55.318671+00:00","interface":{"has_rest_api":false,"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":[],"oauth":false,"scopes":false,"notes":"As a Kubernetes component, access is typically governed via Kubernetes RBAC/service accounts rather than an external API auth scheme."},"pricing":{"model":null,"free_tier_exists":false,"free_tier_limits":null,"paid_tiers":[],"requires_credit_card":false,"estimated_workload_costs":null,"notes":"Open-source/community component; no public vendor pricing detected from provided content."},"requirements":{"requires_signup":false,"requires_credit_card":false,"domain_verification":false,"data_residency":[],"compliance":[],"min_contract":null},"agent_readiness":{"af_score":34.8,"security_score":56.2,"reliability_score":43.8,"mcp_server_quality":0.0,"documentation_accuracy":30.0,"error_message_quality":0.0,"error_message_notes":null,"auth_complexity":60.0,"rate_limit_clarity":10.0,"tls_enforcement":70.0,"auth_strength":55.0,"scope_granularity":45.0,"dependency_hygiene":50.0,"secret_handling":60.0,"security_notes":"Security is largely delegated to Kubernetes primitives (RBAC/service accounts) and cluster TLS/kubelet configuration. Without repository-specific evidence here, dependency posture and exact secret-handling cannot be verified.","uptime_documented":20.0,"version_stability":60.0,"breaking_changes_history":50.0,"error_recovery":45.0,"idempotency_support":"false","idempotency_notes":null,"pagination_style":"none","retry_guidance_documented":false,"known_agent_gotchas":["Kubernetes add-ons often depend on cluster permissions (RBAC), TLS/kubelet reachability, and correct APIService registration; failures may appear as Kubernetes events/logs rather than agent-friendly HTTP error responses.","Because this is not a typical standalone API service, rate limits and auth semantics are governed by Kubernetes components and kubelet connectivity rather than by a documented public API."]}}