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import json
import os
import logging
import argparse
FILES = [
"cinder.policy.json",
"glance.policy.json",
"keystone.policy.json",
"neutron.policy.json",
"nova.policy.json",
]
policy = {
"pdps": [{
"name": "external_pdp",
"keystone_project_id": "",
"description": "",
"policies": [{"name": "OpenStack RBAC Policy"}]}
],
"policies": [{
"name": "OpenStack RBAC Policy",
"genre": "authz",
"description": "A RBAC policy similar of what you can find through policy.json files",
"model": {"name": "OPST_RBAC"}, "mandatory": True, "override": True}
],
"models": [{"name": "OPST_RBAC", "description": "", "meta_rules": [{"name": "rbac"}], "override": True}],
"subjects": [
{"name": "admin", "description": "", "extra": {}, "policies": [{"name": "OpenStack RBAC Policy"}]},
{"name": "demo", "description": "", "extra": {}, "policies": [{"name": "OpenStack RBAC Policy"}]}
],
"subject_categories": [{"name": "role", "description": "a role in OpenStack"}],
"subject_data": [
{"name": "admin", "description": "the admin role", "policies": [], "category": {"name": "role"}},
{"name": "member", "description": "the member role", "policies": [], "category": {"name": "role"}}
],
"subject_assignments": [
{"subject": {"name": "admin"}, "category": {"name": "role"}, "assignments": [{"name": "admin"}, {"name": "member"}]},
{"subject": {"name": "demo"}, "category": {"name": "role"}, "assignments": [{"name": "member"}]}
],
"objects": [],
"object_categories": [{"name": "id", "description": "the UID of each virtual machine"}],
"object_data": [
{
"name": "all_vm",
"description": "represents all virtual machines in this project",
"policies": [],
"category": {"name": "id"}},
],
"object_assignments": [],
"actions": [],
"action_categories": [{"name": "action_id", "description": ""}],
"action_data": [],
"action_assignments": [],
"meta_rules": [
{
"name": "rbac", "description": "",
"subject_categories": [{"name": "role"}],
"object_categories": [{"name": "id"}],
"action_categories": [{"name": "action_id"}]
}
],
"rules": [],
}
logger = logging.getLogger(__name__)
def init():
parser = argparse.ArgumentParser()
parser.add_argument("--verbose", '-v', action='store_true', help='verbose mode')
parser.add_argument("--debug", '-d', action='store_true', help='debug mode')
parser.add_argument("--dir", help='directory containing policy files', default="./policy.json.d")
parser.add_argument("--indent", '-i', help='indent the output (default:None)', type=int, default=None)
parser.add_argument("--output", '-o', help='output name', type=str, default="opst_default_policy.json")
args = parser.parse_args()
logging_format = "%(levelname)s: %(message)s"
if args.verbose:
logging.basicConfig(level=logging.INFO, format=logging_format)
if args.debug:
logging.basicConfig(level=logging.DEBUG, format=logging_format)
else:
logging.basicConfig(format=logging_format)
return args
def get_rules(args):
results = {}
for f in FILES:
_json_file = json.loads(open(os.path.join(args.dir, f)).read())
keys = list(_json_file.keys())
values = list(_json_file.values())
for value in values:
if value in keys:
keys.remove(value)
component = os.path.basename(f).split(".")[0]
results[component] = keys
return results
def build_dict(results):
for key in results:
for rule in results[key]:
_output = {
"name": rule,
"description": "{} action for {}".format(rule, key),
"extra": {"component": key},
"policies": []
}
policy['actions'].append(_output)
_output = {
"name": rule,
"description": "{} action for {}".format(rule, key),
"policies": [],
"category": {"name": "action_id"}
}
policy['action_data'].append(_output)
_output = {
"action": {"name": rule},
"category": {"name": "action_id"},
"assignments": [{"name": rule}, ]}
policy['action_assignments'].append(_output)
_output = {
"meta_rule": {"name": "rbac"},
"rule": {
"subject_data": [{"name": "admin"}],
"object_data": [{"name": "all_vm"}],
"action_data": [{"name": rule}]
},
"policy": {"name": "OpenStack RBAC Policy"},
"instructions": {"decision": "grant"},
"enabled": True
}
policy['rules'].append(_output)
# TODO: add rules for member only
# TODO: add rules for everyone
def write_dict(args):
json.dump(policy, open(args.output, "w"), indent=args.indent)
def main():
args = init()
rules = get_rules(args)
build_dict(rules)
write_dict(args)
if __name__ == "__main__":
main()
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