handler.py 文件源码

def freeprefix(nipap_deamon_ip, account_cb_alias, account_iam_alias, vpc_network, vpc_prefix):
    # Lookup nipap daemon password cipher
    nipapCfn = dynamodb.Table(os.environ['TAILOR_TABLENAME_NIPAPCFN'])
    getNipapCfn = nipapCfn.get_item(
        Key={
            'nipapAlias': account_cb_alias
        }
    )

    # Decrypt nipap daemon password
    nipapDaemonPasswordCipherBlob = getNipapCfn['Item']['nipapDaemonPasswordCipherBlob']
    nipapDeamonPassword = bytes(kms.decrypt(CiphertextBlob=b64decode(nipapDaemonPasswordCipherBlob))['Plaintext'])

    # Look up free CIDR block
    pynipap.xmlrpc_uri = "http://tailor:" + nipapDeamonPassword.rstrip() + "@" + nipap_deamon_ip + ":1337"

    a = pynipap.AuthOptions({
        'authoritative_source': 'tailor_nipap_client'
    })

    # Allocate first available
    new_prefix = Prefix()
    new_prefix.description = account_iam_alias
    new_prefix.type = "assignment"

    # Save will communicate with the backend and ask for the next available desired prefix size
    new_prefix.save({'from-prefix': [vpc_network], 'prefix_length': vpc_prefix})

    # Read the assigned prefix from the new_prefix object
    print("VPC Cidr is: ", new_prefix.prefix)
    return new_prefix.prefix