{
  "id": "bbg-p0297-containers-and-orchestration-containers-and",
  "title": "Kubernetes Control Plane And Workers",
  "chapter": "containers-and-orchestration",
  "batch": "27",
  "rank": 266,
  "sourcePage": 297,
  "sourcePointer": "p. 297",
  "status": "accepted",
  "reviewerStatus": "reviewed",
  "fidelityScore": 0.9,
  "canvas": {
    "width": 960,
    "height": 640
  },
  "fireworksTechGraph": {
    "style": "style-1-flat-icon",
    "diagramType": "architecture",
    "topologyNotes": [
      "source page render inspected",
      "extracted page text inspected",
      "source page render inspected",
      "preserve Kubernetes architecture: user/admin entry, API server, scheduler, controller manager, etcd, worker nodes, kubelet, kube-proxy, container runtime, pods, services, and autoscaling request flow",
      "omit source branding, IP examples, and tiny icon labels"
    ],
    "publicBoundary": [
      "original vector output",
      "no source pixels",
      "no source mark or long wording"
    ]
  },
  "callouts": [],
  "sourceReview": {
    "conceptAnchors": [
      "concept: API server",
      "concept: scheduler",
      "concept: controller manager",
      "concept: etcd",
      "concept: worker nodes",
      "concept: kubelet kube-proxy container runtime pods"
    ],
    "labelSource": "curated",
    "semanticStatus": "reviewed"
  },
  "groups": [
    {
      "id": "entry",
      "label": "User and manifests",
      "x": 50,
      "y": 126,
      "w": 166,
      "h": 330
    },
    {
      "id": "control",
      "label": "Control plane",
      "x": 274,
      "y": 126,
      "w": 340,
      "h": 330
    },
    {
      "id": "workers",
      "label": "Worker nodes",
      "x": 672,
      "y": 126,
      "w": 238,
      "h": 330
    }
  ],
  "shapes": [
    {
      "id": "user",
      "kind": "actor",
      "label": "Developer",
      "detail": "manifest",
      "x": 88,
      "y": 174,
      "w": 82,
      "h": 86,
      "tone": "blue"
    },
    {
      "id": "kubectl",
      "kind": "rect",
      "label": "kubectl UI",
      "detail": "submit",
      "x": 78,
      "y": 330,
      "w": 110,
      "h": 54,
      "tone": "purple"
    },
    {
      "id": "api",
      "kind": "rect",
      "label": "API server",
      "detail": "hub",
      "x": 386,
      "y": 202,
      "w": 118,
      "h": 54,
      "tone": "blue"
    },
    {
      "id": "scheduler",
      "kind": "rect",
      "label": "Scheduler",
      "detail": "assign node",
      "x": 320,
      "y": 326,
      "w": 118,
      "h": 54,
      "tone": "orange"
    },
    {
      "id": "controller",
      "kind": "rect",
      "label": "Controller",
      "detail": "desired state",
      "x": 454,
      "y": 326,
      "w": 118,
      "h": 54,
      "tone": "red"
    },
    {
      "id": "etcd",
      "kind": "cylinder",
      "label": "etcd",
      "detail": "cluster state",
      "x": 386,
      "y": 420,
      "w": 118,
      "h": 70,
      "tone": "green"
    },
    {
      "id": "node1",
      "kind": "rect",
      "label": "Worker node 1",
      "detail": "runtime kubelet",
      "x": 714,
      "y": 172,
      "w": 132,
      "h": 58,
      "tone": "teal"
    },
    {
      "id": "pods",
      "kind": "queue",
      "label": "Pods",
      "detail": "containers",
      "x": 718,
      "y": 282,
      "w": 124,
      "h": 50,
      "tone": "purple"
    },
    {
      "id": "service",
      "kind": "rect",
      "label": "Service",
      "detail": "network route",
      "x": 714,
      "y": 394,
      "w": 132,
      "h": 54,
      "tone": "orange"
    }
  ],
  "connectors": [
    {
      "from": "user",
      "to": "kubectl",
      "label": "apply",
      "flow": "main"
    },
    {
      "from": "kubectl",
      "to": "api",
      "label": "request",
      "flow": "main"
    },
    {
      "from": "api",
      "to": "scheduler",
      "label": "place",
      "flow": "control"
    },
    {
      "from": "api",
      "to": "controller",
      "label": "reconcile",
      "flow": "control"
    },
    {
      "from": "api",
      "to": "etcd",
      "label": "state",
      "flow": "data"
    },
    {
      "from": "scheduler",
      "to": "node1",
      "label": "assign",
      "flow": "main"
    },
    {
      "from": "node1",
      "to": "pods",
      "label": "start",
      "flow": "data"
    },
    {
      "from": "pods",
      "to": "service",
      "label": "expose",
      "flow": "data"
    },
    {
      "from": "service",
      "to": "api",
      "label": "status",
      "flow": "data",
      "dashed": true
    }
  ]
}