{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://github.com/api-evangelist/cast-ai/blob/main/json-schema/node-template.json",
  "title": "CAST AI Node Template",
  "description": "A Node Template defines instance type constraints and configuration for nodes provisioned by the CAST AI autoscaler.",
  "type": "object",
  "properties": {
    "id": {
      "type": "string",
      "format": "uuid",
      "description": "Unique identifier for the node template."
    },
    "name": {
      "type": "string",
      "description": "Name of the node template."
    },
    "configurationId": {
      "type": "string",
      "format": "uuid",
      "description": "ID of the associated node configuration."
    },
    "constraints": {
      "type": "object",
      "description": "Resource constraints for node selection.",
      "properties": {
        "minCpu": {
          "type": "integer",
          "description": "Minimum number of CPUs for the node."
        },
        "maxCpu": {
          "type": "integer",
          "description": "Maximum number of CPUs for the node."
        },
        "minMemory": {
          "type": "integer",
          "description": "Minimum memory in MiB for the node."
        },
        "maxMemory": {
          "type": "integer",
          "description": "Maximum memory in MiB for the node."
        },
        "useSpotInstances": {
          "type": "boolean",
          "description": "Whether to use spot or preemptible instances."
        },
        "architectures": {
          "type": "array",
          "items": {
            "type": "string"
          },
          "description": "Allowed CPU architectures (e.g., amd64, arm64)."
        }
      }
    },
    "createdAt": {
      "type": "string",
      "format": "date-time",
      "description": "Timestamp when the node template was created."
    },
    "updatedAt": {
      "type": "string",
      "format": "date-time",
      "description": "Timestamp when the node template was last updated."
    }
  }
}