root/trunk/geowebcache/src/main/resources/geowebcache.xml

<?xml version="1.0" encoding="utf-8"?>
<gwcConfiguration xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
                  xsi:noNamespaceSchemaLocation="http://geowebcache.org/schema/1.2.2/geowebcache.xsd" 
                  xmlns="http://geowebcache.org/schema/1.2.2">
<version>1.2.2</version>
<backendTimeout>120</backendTimeout>
<gridSets>
  <!-- Grid Set Example, 
       by default EPSG:900913 and EPSG:4326 are defined -->
  <gridSet>
    <!-- This does not have to be an EPSG code, you can also 
         have multiple gridSet elements per SRS -->
    <name>EPSG:2163</name>
    <srs><number>2163</number></srs>
    <extent>
      <coords>
        <double>-2495667.977678598</double>
        <double>-2223677.196231552</double>
        <double>3291070.6104286816</double>
        <double>959189.3312465074</double>
      </coords>
    </extent>
    <scaleDenominators>
      <double>25000000</double>
      <double>1000000</double>
      <double>100000</double>
      <double>25000</double>
    </scaleDenominators>
    <tileHeight>200</tileHeight>
    <tileWidth>200</tileWidth>
  </gridSet>
</gridSets>

<layers>

  <wmsLayer>
    <name>topp:states</name>
    <gridSubsets>
      <gridSubset>
        <gridSetName>EPSG:2163</gridSetName>
      </gridSubset>
    </gridSubsets>  
    <wmsUrl><string>http://atlas.openplans.org:8080/geoserver/wms</string></wmsUrl>
  </wmsLayer>
  
  <wmsLayer>
    <name>raster test layer</name>
     <mimeFormats><string>image/jpeg</string></mimeFormats>
    <wmsUrl><string>http://atlas.openplans.org:8080/geoserver/wms</string></wmsUrl>
    <wmsLayers>nurc:Img_Sample</wmsLayers>
  </wmsLayer>
  
  <wmsLayer>
    <name>img states</name>
    <metaInformation>
      <title>Nicer title for Image States</title>
      <description>This is a description. Fascinating.</description>
    </metaInformation>
    <mimeFormats><string>image/gif</string></mimeFormats>
    <!-- Grid Subset Example -->
    <gridSubsets>
      <gridSubset>
        <gridSetName>EPSG:4326</gridSetName>
        <extent>
          <coords>
            <double>-129.6</double>
            <double>3.45</double>
            <double>-62.1</double>
            <double>70.9</double>
          </coords>
        </extent>
      </gridSubset>
    </gridSubsets>
    <wmsUrl>
      <string>http://atlas.openplans.org:8080/geoserver/wms</string>
    </wmsUrl>
    <wmsLayers>nurc:Img_Sample,topp:states</wmsLayers>
    <transparent>false</transparent>
    <bgColor>0x0066FF</bgColor>
    <expireCacheList>
        <expirationRule minZoom="0" expiration="60" />
    </expireCacheList>
    <expireClientsList>
      <expirationRule minZoom="0" expiration="500" />
    </expireClientsList>
  </wmsLayer>

</layers>
</gwcConfiguration>