bootstrap-popover.hbs

{{yield}}

bootstrap-popover.js

import Ember from 'ember';

export default Ember.Component.extend({
  _initializePopover: function() {
    this.$().popover({
      container: this.get("container"),
      trigger: this.get("action"),
      placement: this.get("placement"),
      content: this.get("content")
    });
  }.on("didInsertElement")
});

template.hbs

{{#bootstrap-popover container="body" action="focus" placement="left" content="We'll use this signature for informal communication. You can use any characters you can imagine."}}
  {{input value=signature id="account_signature" class="form-control form-control-minimal" type="text" required="required" placeholder="What do we call you?" autofocus="autofocus"}}
{{/bootstrap-popover}}