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    • Leigh Stoller's avatar
      Directory based image paths. · 3a21f39e
      Leigh Stoller authored
      Soon, we will have images with both full images and deltas, for the same
      image version. To make this possible, the image path will now be a
      directory instead of a file, and all of the versions (ndz,sig,sha1,delta)
      files will reside in the directory.
      
      A new config variable IMAGEDIRECTORIES turns this on, there is also a check
      for the ImageDiretories feature. This is applied only when a brand new
      image is created; a clone version of the image inherits the path it started
      with. Yes, you can have a mix of directory based and file based image
      descriptors.
      
      When it is time to convert all images over, there is a script called
      imagetodir that will go through all image descriptors, create the
      directory, move/rename all the files, and update the descriptors.
      Ultimately, we will not support file based image paths.
      
      I also added versioning to the image metadata descriptors so that going
      forward, old clients can handle a descriptor from a new server.
      3a21f39e