Pessoal boa tarde estou querendo redirecionar a pagina principal para pagina de login então configurei o faces-config.xml junto com a pagina principal irei posta meu código para vcs verem.
 <?xml version='1.0' encoding='UTF-8'?>
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation=“http://xmlns.jcp.org/xml/ns/javaee
http://xmlns.jcp.org/xml/ns/javaee/web-facesconfig_2_2.xsd”>
<navigation-case>
    <from-outcome>login</from-outcome>
    <to-view-id>/Login.xhtml</to-view-id>
  <redirect/>
</navigation-case>
<f:view>
<h:head>
Minha pagina principal
<!--header-middle<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />    <h:outputStylesheet name="./css/main.css"/>
<h:outputStylesheet name="./css/responsive.css"/>
<h:outputStylesheet library="css" name="main.css"/>-->
<title>Facelets Template</title>
<link type="text/css" rel="stylesheet" href="#{request.contextPath}/cssPrimeFaces/default.css" />
    <link type="text/css" rel="stylesheet" href="#{request.contextPath}/cssPrimeFaces/principal.css" />
    <style type="text/css">
           .ui-layout-north {
                  z-index:20 !important;
                 overflow:visible !important;;
            }
          .ui-layout-north .ui-layout-unit-content {
                overflow:visible !important;
           }
    </style>
</h:head>
<h:body>
<h:form>
 <h:panelGroup layout="block" id="header">
    <ui:insert name="top"><!--não pode ter dois ui na mesma tag, ui serve como container-->
 <h:panelGroup id="header_top">
     <h:panelGroup layout="block" styleClass="container"> <!--painel gropu block, como div, styleClass, classe-->  
<b:column col-sm=“6”>
<h:panelGroup layout=“block” styleClass=“contactinfo”>
- +2 95 01 88 821
- info@domain.com
    </h:panelGroup>  
 </b:column> 
          <b:column col-sm="6">
                 <h:panelGroup layout="block" styleClass="docial-icons pull-right">
        <ul class="nav navbar-nav">
<li><i class="fa fa-facebook" action="" ></i></li>
<li><i class="fa fa-twitter" action=""></i></li>
<li><i class="fa fa-linkedin" action=""></i></li>
<li><i class="fa fa-dribbble" action=""></i></li>
<li><i class="fa fa-google-plus" action=""></i></li>
</ul>
                     </h:panelGroup>
             </b:column>
             </h:panelGroup>
     </h:panelGroup> 
        </ui:insert>
     <h:panelGroup layout="block" styleClass="header-middle"><!--header-middle-->
            <h:panelGroup layout="block" styleClass="container">
     <b:row>
         <b:column col-sm="4">
             <h:panelGroup layout="block" styleClass="logo_pull_left">
                 <h:commandLink action="index.xhtml">
               <h:graphicImage library="imagens" name="winnerlogo.png"/> 
                 </h:commandLink>
          </h:panelGroup>
         </b:column>
          <b:column col-sm="8">
             <h:panelGroup layout="block" styleClass="shop-menu pull-right">
    <ul class="nav navbar-nav">
                    <li><i class="fa fa-user"></i><h:commandLink action="#{navegacao.redirecionarConta()}" value="Minha Conta" /></li>
                    <li><i class="fa fa-shopping-cart"></i><h:commandLink action="#{navegacao.redirecionarCarrinho()}" value="Carrinho de compras" /></li>
                    <li><i class="fa fa-lock"></i><h:commandLink action="login" value="Login"/></li>
    </ul>
    </h:panelGroup>
         </b:column>
     </b:row>
            </h:panelGroup>
</h:panelGroup>
</h:body></h:form>