grafana/public/app/plugins/datasource/elasticsearch/partials/config.html

<datasource-http-settings current="ctrl.current">
</datasource-http-settings>

<div class="gf-form-group">
	<h3>Elasticsearch details</h3>

	<div class="gf-form-inline">
		<div class="gf-form gf-size-max-xxxl">
			<span class="gf-form-label gf-size-md">Index name</span>
			<input class="gf-form-input" type="text" ng-model='ctrl.current.database' placeholder="" required></input>
		</div>

		<div class="gf-form gf-size-xl">
			<span class="gf-form-label gf-size-md">Pattern</span>
			<select class="gf-form-input gf-size-auto" ng-model="ctrl.current.jsonData.interval" ng-options="f.value as f.name for f in ctrl.indexPatternTypes" ng-change="ctrl.indexPatternTypeChanged()" ></select>
		</div>
	</div>

	<div class="gf-form gf-size-max-xxxl">
		<span class="gf-form-label gf-size-md">Time field name</span>
		<input class="gf-form-input" type="text"  ng-model='ctrl.current.jsonData.timeField' placeholder="" required ng-init=""></input>
	</div>

	<div class="gf-form">
		<span class="gf-form-label gf-size-md">Version</span>
		<select class="gf-form-input gf-size-auto" ng-model="ctrl.current.jsonData.esVersion" ng-options="f.value as f.name for f in ctrl.esVersions"></select>
	</div>

</div>

<div class="gf-form-group">
	<h4>Default query settings</h4>

	<div class="gf-form">
		<span class="gf-form-label">Group by time interval</span>
		<input class="gf-form-input gf-size-max-md" type="text" ng-model="ctrl.current.jsonData.timeInterval" spellcheck='false' placeholder="example: >10s">
	</div>
</div>