Question

部署一个新的马拉松应用程序组，其层次结构如下所示（注意显示为yaml而不是json以提高可读性）：

id: root_id
groups: 
- id: data_center_id
  groups:
  - id: category_id
    groups:
    - id: app_or_svc_type_id
      apps
      - id: app_id
        ....
      - id: app_id
        ....
      - id: app_id
        ....
    - id: app_or_svc_type_id
      apps
      - id: app_id
        ....
      - id: app_id
        ....
      - id: app_id
        ....

我现在想在类别级别添加一个额外的子组，所以现在看起来像这样：

id: root_id
groups: 
- id: data_center_id
  groups:
  - id: category_id
    groups:
    - id: app_or_svc_type_id
      apps
      - id: app_id
        ....
      - id: app_id
        ....
      - id: app_id
        ....
    - id: app_or_svc_type_id
      apps
      - id: app_id
        ....
      - id: app_id
        ....
      - id: app_id
        ....
  # this is the new subgroup to add
  - id: category_id
    groups:
    - id: app_or_svc_type_id
      apps
      - id: app_id
        ....
      - id: app_id
        ....
      - id: app_id
        ....
    - id: app_or_svc_type_id
      apps
      - id: app_id
        ....
      - id: app_id
        ....
      - id: app_id
        ....

当我使用Marathon REST API通过PUT尝试此操作时，现有组将被销毁并创建新的子组。也许我在这里遗漏了一些东西，但是为了向现有的应用程序组层次结构添加新的微服务，这个功能至关重要。

感谢任何帮助

Answer 1

我不太清楚你到底做了什么。告诉我们您确切的HTTP请求可能有所帮助。

您的问题可能是您的论坛和应用的ID不正确。有时，这会导致忽略的群组/应用没有任何错误：https://github.com/mesosphere/marathon/issues/1890

以下HTTP请求对我有用。

使用一个子组创建初始组：

PUT /v2/groups/group HTTP/1.1
Accept: application/json
Accept-Encoding: gzip, deflate
Connection: keep-alive
Content-Length: 185
Content-Type: application/json
Host: localhost:8080
User-Agent: HTTPie/0.9.2

{
    "groups": [
        {
            "apps": [
                {
                    "cmd": "python -m SimpleHTTPServer $PORT",
                    "id": "/group/subgroup1/app"
                }
            ],
            "id": "/group/subgroup1"
        }
    ],
    "id": "/group"
}

HTTP/1.1 200 OK
Cache-Control: no-cache, no-store, must-revalidate
Content-Type: application/json
Expires: 0
Pragma: no-cache
Server: Jetty(8.1.15.v20140411)
Transfer-Encoding: chunked
X-Marathon-Leader: http://localhost:8080

{
    "deploymentId": "6c59b425-49e2-4db8-8de0-a29020a34be7",
    "version": "2015-07-28T12:00:01.171Z"
}

使用包含其他子组的新定义更新组：

PUT /v2/groups/group HTTP/1.1
Accept: application/json
Accept-Encoding: gzip, deflate
Connection: keep-alive
Content-Length: 335
Content-Type: application/json
Host: localhost:8080
User-Agent: HTTPie/0.9.2

{
    "groups": [
        {
            "apps": [
                {
                    "cmd": "python -m SimpleHTTPServer $PORT",
                    "id": "/group/subgroup1/app"
                }
            ],
            "id": "/group/subgroup1"
        },
        {
            "apps": [
                {
                    "cmd": "python -m SimpleHTTPServer $PORT",
                    "id": "/group/subgroup2/app"
                }
            ],
            "id": "/group/subgroup2"
        }
    ],
    "id": "/group"
}

HTTP/1.1 200 OK
Cache-Control: no-cache, no-store, must-revalidate
Content-Type: application/json
Expires: 0
Pragma: no-cache
Server: Jetty(8.1.15.v20140411)
Transfer-Encoding: chunked
X-Marathon-Leader: http://localhost:8080

{
    "deploymentId": "b72801f7-8a18-434e-bebb-81d55e698ef1",
    "version": "2015-07-28T12:03:17.109Z"
}

现有的应用程序/组保持不变。

或者，您也可以对PUT使用/v2/groups/group/subgroup2请求，仅包含该子组的定义。

Answer 2

要添加子组，只需PUT或POST完全指定其ID的子组，在您的案例/root_id/data_center_id/category_id中。

如何将新组添加到现有马拉松应用程序组层次结构

2 个答案: