{ "description": "OpenContainer Image Index Specification", "$schema": "http://json-schema.org/draft-04/schema#", "id": "https://opencontainers.org/schema/image/index", "type": "object", "properties": { "schemaVersion": { "description": "This field specifies the image index schema version as an integer", "id": "https://opencontainers.org/schema/image/index/schemaVersion", "type": "integer", "minimum": 2, "maximum": 2 }, "manifests": { "type": "array", "items": { "$ref": "defs-image.json#/definitions/manifestDescriptor" } }, "elements": { "type": "array", "items": { "$ref": "content-descriptor.json" } }, "annotations": { "id": "https://opencontainers.org/schema/image/index/annotations", "$ref": "defs-image.json#/definitions/annotations" } }, "required": [ "schemaVersion", "manifests" ] }