How can I name Curator rollover new Index like date prefix-YYYY.MM.DD-1?

Elastic Stack Elasticsearch
2

I took the liberty of editing your post to make it legible. Please use the code tags or triple back-ticks to encapsulate preformatted text in the future.

First, you can create the index and the alias in one shot:

PUT /logservices-2018.04.17-1
{
  "aliases": {
    "logservices": {}
  }
}

Second, there is an undocumented feature for the rollover action that lets you name a new index:

  options:
    ...
    new_index: '<logservices-{now/d}-1}>'

If you need something other than the current year-month-day, look at the date math docs and follow the conventions there.