• Leigh Stoller's avatar
    Directory based image paths. · bf12ce88
    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.
    bf12ce88
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