第 4 章 kamelets 参考

Kamelet 通常以 YAML 域特定语言进行编码。文件名前缀是 Kamelet 的名称。例如，名称 FTP sink 的 Kamelet 具有文件名 ftp-sink.kamelet.yaml。

请注意，在 OpenShift 中，Kamelet 是一个显示 Kamelet 的名称的资源（而不是文件名）。

在高级别上，Kamelet 资源描述了：

下图显示了 Kamelet 及其部分的示例。

Kamelet 结构示例

telegram-text-source.kamelet.yaml
apiVersion: camel.apache.org/v1alpha1
kind: Kamelet
metadata:
  name: telegram-source 1
  annotations: 2
    camel.apache.org/catalog.version: "master-SNAPSHOT"
    camel.apache.org/kamelet.icon: "data:image/..."
    camel.apache.org/provider: "Red Hat"
    camel.apache.org/kamelet.group: "Telegram"
  labels: 3
    camel.apache.org/kamelet.type: "source"
spec:
  definition: 4
    title: "Telegram Source"
    description: |-
        Receive all messages that people send to your telegram bot.
        To create a bot, contact the @botfather account using the
        Telegram app.
        The source attaches the following headers to the messages:
        - chat-id / ce-chatid: the ID of the chat where the
        message comes from
    required:
        - authorizationToken
    type: object
    properties:
        authorizationToken:
          title: Token
          description: The token to access your bot on Telegram, that you
                   can obtain from the Telegram "Bot Father".
          type: string
          format: password
        x-descriptors:
        - urn:alm:descriptor:com.tectonic.ui:password
  types: 5
    out:
      mediaType: application/json
  dependencies:
  - "camel:jackson"
  - "camel:kamelet"
  - "camel:telegram"
  template: 6
    from:
        uri: telegram:bots
        parameters:
            authorizationToken: "{{authorizationToken}}"
        steps:
        - set-header:
          name: chat-id
          simple: "${header[CamelTelegramChatId]}"
        - set-header:
          name: ce-chatid
          simple: "${header[CamelTelegramChatId]}"
        - marshal:
          json: {}
        - to: "kamelet:sink"