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Add a uniqueness hash to derived image storage to break caching over tags

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This allows converted ACIs and squashed images to be unique based on the specified tag.

Fixes #92
This commit is contained in:
Joseph Schorr 2016-06-06 15:38:29 -04:00
parent a33a70a419
commit a43b741f1b
7 changed files with 119 additions and 40 deletions
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21
util/security/fingerprint.py
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@ -1,26 +1,7 @@
import collections
import json
from hashlib import sha256
def canonicalize(json_obj):
"""This function canonicalizes a Python object that will be serialized as JSON.
Args:
json_obj (object): the Python object that will later be serialized as JSON.
Returns:
object: json_obj now sorted to its canonical form.
"""
if isinstance(json_obj, collections.MutableMapping):
sorted_obj = sorted({key: canonicalize(val) for key, val in json_obj.items()}.items())
return collections.OrderedDict(sorted_obj)
elif isinstance(json_obj, (list, tuple)):
return [canonicalize(val) for val in json_obj]
return json_obj
from util.canonicaljson import canonicalize
def canonical_kid(jwk):
"""This function returns the SHA256 hash of a canonical JWK.