How to create ElasticSearch policy from Golang client-CodePudding

I'm trying to create index lifecycle management (ILM) policy from Elastic Golang client olivere to delete indexes older than 3 months (using "index-per-day" pattern). Something like this:

{
  "policy": {
    "phases": {      
      "delete": {
        "min_age": "90d",
        "actions": {
          "delete": {}
        }
      }
    }
  }
}

I can see in the lib's source code there is structure for that: XPackIlmPutLifecycleService which has the following fields:

type XPackIlmPutLifecycleService struct {
    client *Client

    pretty     *bool       // pretty format the returned JSON response
    human      *bool       // return human readable values for statistics
    errorTrace *bool       // include the stack trace of returned errors
    filterPath []string    // list of filters used to reduce the response
    headers    http.Header // custom request-level HTTP headers

    policy        string
    timeout       string
    masterTimeout string
    flatSettings  *bool
    bodyJson      interface{}
    bodyString    string
}

And here is the documentation link. However I'm a bit confused how to create policy using it to do the job as it seems missing some fields (for example min_age to set the TTL for index). What's the proper way to create ILM policy via this client.

CodePudding user response：

You can reference the test code! Basically you can put the json to the body field.

    testPolicyName := "test-policy"

    body := `{
        "policy": {
            "phases": {
                "delete": {
                    "min_age": "90d",
                    "actions": {
                        "delete": {}
                    }
                }
            }
        }
    }`

    // Create the policy
    putilm, err := client.XPackIlmPutLifecycle().Policy(testPolicyName).BodyString(body).Do(context.TODO())

https://github.com/olivere/elastic/blob/release-branch.v7/xpack_ilm_test.go#L15-L31