Blank WCS

[Ryan Ollerenshaw]

I am trying to create a WCS from my already existing WMS mapfile.  I know that
my mapserver supports WCS but when request a DescribeCoverage through the URL
it reports back that i do not have any coverages in my map file when there
should be three:

<CoverageDescription version="1.0.0" updateSequence="0"
xsi:schemaLocation="http://www.opengis.net/wcs
http://schemas.opengeospatial.net/wcs/1.0.0/describeCoverage.xsd">
</CoverageDescription>

Here is my mapfile:

NAME WMS_WFS_WCS_server
STATUS ON
SIZE 1000 600
EXTENT 0 -90 360 90
UNITS METERS
SHAPEPATH "../data"
IMAGECOLOR 255 255 255


WEB
  TEMPLATE test_template.html
  IMAGEPATH "/tmp/ms_tmp/"
  IMAGEURL "/ms_tmp/"
  METADATA
    WCS_NAME    "WMS Mars MapServer"
    WCS_ACCESSCONSTRAINTS "NONE"
    WCS_ONLINERESOURCE "http://neuron/cgi-bin/mapserv?map=display.map&"
    WCS_SRS     "EPSG:4326" #"AUTO:42003"
    WCS_FEES "NONE"
  END
END

PROJECTION
  "init=epsg:4326"
END

#GTiff will not display in browser but a PNG will
OUTPUTFORMAT
    NAME GEOTIFF
    DRIVER "GDAL/GTiff"
    MIMETYPE "image/tiff"
    IMAGEMODE "RGBA"
    #IMAGEMODE "PC256"
    EXTENSION "tif"
    FORMATOPTION "COMPRESS=PACKBITS"
END

LAYER
  NAME "themis"
  STATUS ON
  TILEINDEX "thm_dir.shp"
  TILEITEM "location"
  TYPE RASTER
  DUMP TRUE
  METADATA
    wcs_title "THEMIS_Data"
  END
END

LAYER
  NAME "moc"
  STATUS ON
  TILEINDEX "moc_256.shp"
  TILEITEM "location"
  TYPE RASTER
  METADATA
    WCS_TITLE "MOC_Data"
    wcs_description "test"
  END
END

LAYER
  NAME "mola"
  STATUS ON
  TILEINDEX "mola_color.shp"
  TILEITEM "location"
  TYPE RASTER
  METADATA
    WCS_TITLE "MOLA_Data"
  END
END



END # of map file