OpenSearch/rest-api-spec/test/indices.put_template/10_basic.yaml

---
"Put template":
  - do:
      indices.put_template:
        name: test
        body:
          template: test-*
          settings:
            number_of_shards:   1
            number_of_replicas: 0

  - do:
      indices.get_template:
        name: test

  - match: {test.template: "test-*"}
  - match: {test.settings: {index.number_of_shards: '1', index.number_of_replicas: '0'}}

---
"Put template with aliases":
  - do:
      indices.put_template:
        name: test
        body:
          template: test-*
          aliases:
            test_alias: {}
            test_blias: { routing: b }
            test_clias: { filter: { term: { user: kimchy }}}

  - do:
      indices.get_template:
        name: test

  - match:  { test.template: "test-*" }
  - length: { test.aliases: 3 }
  - is_true: test.aliases.test_alias
  - match: { test.aliases.test_blias.index_routing: "b" }
  - match: { test.aliases.test_blias.search_routing: "b" }
  - match: { test.aliases.test_clias.filter.term.user: "kimchy" }