93 lines
2.6 KiB
Python
93 lines
2.6 KiB
Python
import uuid
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import random
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import yaml
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import os
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import string
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from moto.core import ACCOUNT_ID
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def generate_stack_id(stack_name, region="us-east-1", account="123456789"):
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random_id = uuid.uuid4()
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return "arn:aws:cloudformation:{}:{}:stack/{}/{}".format(
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region, account, stack_name, random_id
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)
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def generate_changeset_id(changeset_name, region_name):
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random_id = uuid.uuid4()
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return "arn:aws:cloudformation:{0}:123456789:changeSet/{1}/{2}".format(
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region_name, changeset_name, random_id
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)
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def generate_stackset_id(stackset_name):
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random_id = uuid.uuid4()
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return "{}:{}".format(stackset_name, random_id)
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def generate_stackset_arn(stackset_id, region_name):
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return "arn:aws:cloudformation:{}:{}:stackset/{}".format(
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region_name, ACCOUNT_ID, stackset_id
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)
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def random_suffix():
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size = 12
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chars = list(range(10)) + list(string.ascii_uppercase)
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return "".join(str(random.choice(chars)) for x in range(size))
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def yaml_tag_constructor(loader, tag, node):
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"""convert shorthand intrinsic function to full name"""
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def _f(loader, tag, node):
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if tag == "!GetAtt":
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if isinstance(node.value, list):
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return node.value
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return node.value.split(".")
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elif type(node) == yaml.SequenceNode:
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return loader.construct_sequence(node)
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else:
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return node.value
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if tag == "!Ref":
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key = "Ref"
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else:
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key = "Fn::{}".format(tag[1:])
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return {key: _f(loader, tag, node)}
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def validate_template_cfn_lint(template):
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# Importing cfnlint adds a significant overhead, so we keep it local
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from cfnlint import decode, core
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# Save the template to a temporary file -- cfn-lint requires a file
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filename = "file.tmp"
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with open(filename, "w") as file:
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file.write(template)
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abs_filename = os.path.abspath(filename)
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# decode handles both yaml and json
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try:
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template, matches = decode.decode(abs_filename, False)
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except TypeError:
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# As of cfn-lint 0.39.0, the second argument (ignore_bad_template) was dropped
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# https://github.com/aws-cloudformation/cfn-python-lint/pull/1580
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template, matches = decode.decode(abs_filename)
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# Set cfn-lint to info
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core.configure_logging(None)
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# Initialize the ruleset to be applied (no overrules, no excludes)
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rules = core.get_rules([], [], [])
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# Use us-east-1 region (spec file) for validation
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regions = ["us-east-1"]
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# Process all the rules and gather the errors
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matches = core.run_checks(abs_filename, template, rules, regions)
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return matches
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