{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://www.aylett.co.uk/schema/drone-0.8.json",
  "$ref": "#/definitions/root",
  "title": "Drone 0.8 pipeline definition",
  "definitions": {
    "root": {
      "type": "object",
      "additionalProperties": {
        "type": "object",
        "additionalProperties": {
          "$ref": "#/definitions/stage"
        }
      },
      "required": [
        "pipeline"
      ]
    },
    "stage": {
      "type": "object",
      "anyOf": [
        {
          "$ref": "#/definitions/cloneable"
        },
        {
          "$ref": "#/definitions/ecr"
        }
      ],
      "required": [
        "image"
      ]
    },
    "cloneable": {
      "type": "object",
      "properties": {
        "image": {
          "description": "The Docker image to use as a Drone plugin",
          "type": "string",
          "pattern": "^[^:]+(:[^:]+)?$"
        },
        "pull": {
          "description": "Whether to require the worker to pull the latest version of the image",
          "type": "boolean",
          "default": false
        },
        "environment": {
          "description": "Environment variables to apply when running the container",
          "type": "array",
          "items": {
            "$ref": "#/definitions/variable"
          }
        },
        "commands": {
          "description": "Commands to execute instead of the default entry point",
          "type": "array",
          "items": {
            "type": "string"
          },
          "minItems": 1
        },
        "secrets": {
          "type": "array",
          "items": {
            "oneOf": [
              {
                "type": "string"
              },
              {
                "type": "object",
                "properties": {
                  "source": {
                    "description": "The name of the secret within Drone",
                    "$ref": "#/definitions/variable"
                  },
                  "target": {
                    "description": "The name of the environment variable that will contain the secret",
                    "$ref": "#/definitions/variable"
                  }
                },
                "additionalProperties": false
              }
            ]
          }
        },
        "group": {
          "description": "Stages with the same group will run in parallel",
          "type": "string"
        },
        "when": {
          "$ref": "#/definitions/when"
        }
      },
      "required": [
        "image"
      ]
    },
    "ecr": {
      "type": "object",
      "properties": {
        "image": {
          "type": "string",
          "pattern": "[^/]+/drone-plugins/drone-ecr(:[^:]+)?"
        },
        "repo": {
          "type": "string"
        },
        "create_repository": {
          "type": "boolean"
        },
        "region": {
          "description": "Which AWS regions to push the image to",
          "type": "array",
          "items": {
            "$ref": "#/definitions/region"
          },
          "uniqueItems": true
        },
        "exposed_accounts": {
          "description": "Which AWS accounts to allow access from",
          "type": "array",
          "items": {
            "type": "string"
          }
        }
      },
      "required": [
        "image",
        "repo"
      ]
    },
    "when": {
      "description": "Restrict when this stage will be executed",
      "type": "object",
      "properties": {
        "branch": {
          "oneOf": [
            {
              "type": "string"
            },
            {
              "type": "array",
              "uniqueItems": true,
              "items": {
                "type": "string"
              }
            }
          ]
        },
        "event": {
          "oneOf": [
            {
              "$ref": "#/definitions/string-or-array"
            },
            {
              "type": "object",
              "properties": {
                "exclude": {
                  "$ref": "#/definitions/string-or-array"
                }
              },
              "additionalProperties": false
            }
          ]
        }
      }
    },
    "string-or-array": {
      "oneOf": [
        {
          "type": "string"
        },
        {
          "type": "array",
          "uniqueItems": true,
          "items": {
            "type": "string"
          }
        }
      ]
    },
    "region": {
      "description": "An AWS region",
      "enum": [
        "eu-west-1",
        "eu-central-1",
        "ap-southeast-1",
        "ap-northeast-1"
      ]
    },
    "variable": {
      "type": "string",
      "description": "A string holding a valid Bash variable name",
      "pattern": "[a-zA-Z_][a-zA-Z0-9_]+=.*"
    }
  }
}