grafana/public/app/features/plugins/partials/ds_http_settings.html

<div class="gf-form-group">
  <h3 class="page-heading">HTTP settings</h3>
  <div class="gf-form-group">
    <div class="gf-form-inline">
      <div class="gf-form max-width-30">
        <span class="gf-form-label width-7">URL</span>
        <input class="gf-form-input" type="text"
              ng-model='current.url' placeholder="{{suggestUrl}}"
              bs-typeahead="getSuggestUrls"  min-length="0"
              ng-pattern="/^(ftp|http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?$/" required></input>
        <info-popover mode="right-absolute">
          <p>Specify a complete HTTP URL (for example http://your_server:8080)</p>
          <span ng-show="current.access === 'direct'">
            Your access method is <em>Direct</em>, this means the URL
            needs to be accessible from the browser.
          </span>
          <span ng-show="current.access === 'proxy'">
            Your access method is currently <em>Proxy</em>, this means the URL
            needs to be accessible from the grafana backend.
          </span>
        </info-popover>
      </div>
    </div>

    <div class="gf-form-inline">
      <div class="gf-form max-width-30">
        <span class="gf-form-label width-7">Access</span>
        <div class="gf-form-select-wrapper gf-form-select-wrapper--has-help-icon max-width-24">
          <select class="gf-form-input" ng-model="current.access" ng-options="f for f in ['direct', 'proxy']"></select>
          <info-popover mode="right-absolute">
            Direct = URL is used directly from browser<br>
            Proxy = Grafana backend will proxy the request
          </info-popover>
        </div>
      </div>
    </div>
  </div>

  <h3 class="page-heading">HTTP Auth</h3>
    <div class="gf-form-group">
      <div class="gf-form-inline">
        <gf-form-switch class="gf-form" label="Basic Auth" checked="current.basicAuth" label-class="width-8" switch-class="max-width-6"></gf-form-switch>
        <gf-form-switch class="gf-form" label="With Credentials" tooltip="Whether credentials such as cookies or auth headers should be sent with cross-site requests." checked="current.withCredentials" label-class="width-11" switch-class="max-width-6"></gf-form-switch>
      </div>
      <div class="gf-form-inline">
        <gf-form-switch class="gf-form" ng-if="current.access=='proxy'" label="TLS Client Auth" label-class="width-8" checked="current.jsonData.tlsAuth" switch-class="max-width-6"></gf-form-switch>
        <gf-form-switch class="gf-form" ng-if="current.access=='proxy'" label="With CA Cert" tooltip="Optional. Needed for self-signed TLS Certs." checked="current.jsonData.tlsAuthWithCACert" label-class="width-11" switch-class="max-width-6"></gf-form-switch>
      </div>
    </div>

    <div class="gf-form-inline">
      <gf-form-switch class="gf-form" ng-if="current.access=='proxy'" label="Skip TLS Verification (Insecure)" label-class="width-16" checked="current.jsonData.tlsSkipVerify" switch-class="max-width-6"></gf-form-switch>
    </div>
  </div>
</div>

<div class="gf-form-group" ng-if="current.basicAuth">
  <h6>Basic Auth Details</h6>
	<div class="gf-form" ng-if="current.basicAuth">
		<span class="gf-form-label width-7">
			User
		</span>
		<input class="gf-form-input max-width-21" type="text"  ng-model='current.basicAuthUser' placeholder="user" required></input>
	</div>

	<div class="gf-form">
		<span class="gf-form-label width-7">
			Password
		</span>
		<input class="gf-form-input max-width-21" type="password" ng-model='current.basicAuthPassword' placeholder="password" required></input>
	</div>
</div>

<div class="gf-form-group" ng-if="(current.jsonData.tlsAuth || current.jsonData.tlsAuthWithCACert) && current.access=='proxy'">
  <div class="gf-form">
    <h6>TLS Auth Details</h6>
    <info-popover mode="header">TLS Certs are encrypted and stored in the Grafana database.</info-popover>
  </div>
  <div ng-if="current.jsonData.tlsAuthWithCACert">
    <div class="gf-form-inline">
      <div class="gf-form gf-form--v-stretch">
        <label class="gf-form-label width-7">CA Cert</label>
      </div>
      <div class="gf-form gf-form--grow" ng-if="!current.secureJsonFields.tlsCACert">
        <textarea rows="7" class="gf-form-input gf-form-textarea" ng-model="current.secureJsonData.tlsCACert" placeholder="Begins with -----BEGIN CERTIFICATE-----. The CA Certificate is necessary if you are using self-signed certificates."></textarea>
      </div>

      <div class="gf-form" ng-if="current.secureJsonFields.tlsCACert">
        <input type="text" class="gf-form-input max-width-12" disabled="disabled" value="configured">
        <a class="btn btn-secondary gf-form-btn" href="#" ng-click="current.secureJsonFields.tlsCACert = false">reset</a>
      </div>
    </div>
  </div>

  <div ng-if="current.jsonData.tlsAuth">
    <div class="gf-form-inline">
      <div class="gf-form gf-form--v-stretch">
        <label class="gf-form-label width-7">Client Cert</label>
      </div>
      <div class="gf-form gf-form--grow" ng-if="!current.secureJsonFields.tlsClientCert">
        <textarea rows="7" class="gf-form-input gf-form-textarea" ng-model="current.secureJsonData.tlsClientCert" placeholder="Begins with -----BEGIN CERTIFICATE-----" required></textarea>
      </div>
      <div class="gf-form" ng-if="current.secureJsonFields.tlsClientCert">
        <input type="text" class="gf-form-input max-width-12" disabled="disabled" value="configured">
        <a class="btn btn-secondary gf-form-btn" href="#" ng-click="current.secureJsonFields.tlsClientCert = false">reset</a>
      </div>
    </div>

    <div class="gf-form-inline">
      <div class="gf-form gf-form--v-stretch">
        <label class="gf-form-label width-7">Client Key</label>
      </div>
      <div class="gf-form gf-form--grow" ng-if="!current.secureJsonFields.tlsClientKey">
        <textarea rows="7" class="gf-form-input gf-form-textarea" ng-model="current.secureJsonData.tlsClientKey" placeholder="Begins with -----BEGIN RSA PRIVATE KEY-----" required></textarea>
      </div>
      <div class="gf-form" ng-if="current.secureJsonFields.tlsClientKey">
        <input type="text" class="gf-form-input max-width-12" disabled="disabled" value="configured">
        <a class="btn btn-secondary gf-form-btn" href="#" ng-click="current.secureJsonFields.tlsClientKey = false">reset</a>
      </div>
    </div>
  </div>
</div>