{
  "description": "Definitions particular to OpenContainer Config Specification",
  "definitions": {
    "config": {
      "type": "object",
      "properties": {
        "User": {
          "type": "string"
        },
        "ExposedPorts": {
          "$ref": "defs.json#/definitions/mapStringObject"
        },
        "Env": {
          "type": "array",
          "items": {
            "type": "string"
          }
        },
        "Entrypoint": {
          "oneOf": [
            {
              "type": "array",
              "items": {
                "type": "string"
              }
            },
            {
              "type": "null"
            }
          ]
        },
        "Cmd": {
          "oneOf": [
            {
              "type": "array",
              "items": {
                "type": "string"
              }
            },
            {
              "type": "null"
            }
          ]
        },
        "Volumes": {
          "oneOf": [
            {
              "$ref": "defs.json#/definitions/mapStringObject"
            },
            {
              "type": "null"
            }
          ]
        },
        "WorkingDir": {
          "type": "string"
        },
        "Labels": {
          "oneOf": [
            {
              "$ref": "defs.json#/definitions/mapStringString"
            },
            {
              "type": "null"
            }
          ]
        }
      }
    },
    "rootfs": {
      "type": "object",
      "properties": {
        "diff_ids": {
          "type": "array",
          "items": {
            "type": "string"
          }
        },
        "type": {
          "type": "string",
          "enum": [
            "layers"
          ]
        }
      },
      "required": [
        "diff_ids",
        "type"
      ]
    },
    "history": {
      "type": "object",
      "properties": {
        "created": {
          "type": "string",
          "format": "date-time"
        },
        "author": {
          "type": "string"
        },
        "created_by": {
          "type": "string"
        },
        "comment": {
          "type": "string"
        },
        "empty_layer": {
          "type": "boolean"
        }
      }
    }
  }
}