| .. | |||||
| __pycache__ | |||||
| __init__.py | |||||
| artifact_exporter.py | |||||
| deploy.py | |||||
| deployer.py | |||||
| exceptions.py | |||||
| package.py | |||||
| yamlhelper.py |
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# Copyright 2015 Amazon.com, Inc. or its affiliates. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"). You
# may not use this file except in compliance with the License. A copy of
# the License is located at
#
# http://aws.amazon.com/apache2.0/
#
# or in the "license" file accompanying this file. This file is
# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
# ANY KIND, either express or implied. See the License for the specific
# language governing permissions and limitations under the License.
import os
import sys
import logging
from botocore.client import Config
from awscli.customizations.cloudformation import exceptions
from awscli.customizations.cloudformation.deployer import Deployer
from awscli.customizations.s3uploader import S3Uploader
from awscli.customizations.cloudformation.yamlhelper import yaml_parse
from awscli.customizations.commands import BasicCommand
from awscli.compat import get_stdout_text_writer
from awscli.utils import write_exception
LOG = logging.getLogger(__name__)
class DeployCommand(BasicCommand):
MSG_NO_EXECUTE_CHANGESET = \
("Changeset created successfully. Run the following command to "
"review changes:"
"\n"
"aws cloudformation describe-change-set --change-set-name "
"{changeset_id}"
"\n")
MSG_EXECUTE_SUCCESS = "Successfully created/updated stack - {stack_name}\n"
PARAMETER_OVERRIDE_CMD = "parameter-overrides"
TAGS_CMD = "tags"
NAME = 'deploy'
DESCRIPTION = BasicCommand.FROM_FILE("cloudformation",
"_deploy_description.rst")
ARG_TABLE = [
{
'name': 'template-file',
'required': True,
'help_text': (
'The path where your AWS CloudFormation'
' template is located.'
)
},
{
'name': 'stack-name',
'action': 'store',
'required': True,
'help_text': (
'The name of the AWS CloudFormation stack you\'re deploying to.'
' If you specify an existing stack, the command updates the'
' stack. If you specify a new stack, the command creates it.'
)
},
{
'name': 's3-bucket',
'required': False,
'help_text': (
'The name of the S3 bucket where this command uploads your '
'CloudFormation template. This is required the deployments of '
'templates sized greater than 51,200 bytes'
)
},
{
"name": "force-upload",
"action": "store_true",
"help_text": (
'Indicates whether to override existing files in the S3 bucket.'
' Specify this flag to upload artifacts even if they '
' match existing artifacts in the S3 bucket.'
)
},
{
'name': 's3-prefix',
'help_text': (
'A prefix name that the command adds to the'
' artifacts\' name when it uploads them to the S3 bucket.'
' The prefix name is a path name (folder name) for'
' the S3 bucket.'
)
},
{
'name': 'kms-key-id',
'help_text': (
'The ID of an AWS KMS key that the command uses'
' to encrypt artifacts that are at rest in the S3 bucket.'
)
},
{
'name': PARAMETER_OVERRIDE_CMD,
'action': 'store',
'required': False,
'schema': {
'type': 'array',
'items': {
'type': 'string'
}
},
'default': [],
'help_text': (
'A list of parameter structures that specify input parameters'
' for your stack template. If you\'re updating a stack and you'
' don\'t specify a parameter, the command uses the stack\'s'
' existing value. For new stacks, you must specify'
' parameters that don\'t have a default value.'
' Syntax: ParameterKey1=ParameterValue1'
' ParameterKey2=ParameterValue2 ...'
)
},
{
'name': 'capabilities',
'action': 'store',
'required': False,
'schema': {
'type': 'array',
'items': {
'type': 'string',
'enum': [
'CAPABILITY_IAM',
'CAPABILITY_NAMED_IAM'
]
}
},
'default': [],
'help_text': (
'A list of capabilities that you must specify before AWS'
' Cloudformation can create certain stacks. Some stack'
' templates might include resources that can affect'
' permissions in your AWS account, for example, by creating'
' new AWS Identity and Access Management (IAM) users. For'
' those stacks, you must explicitly acknowledge their'
' capabilities by specifying this parameter. '
' The only valid values are CAPABILITY_IAM and'
' CAPABILITY_NAMED_IAM. If you have IAM resources, you can'
' specify either capability. If you have IAM resources with'
' custom names, you must specify CAPABILITY_NAMED_IAM. If you'
' don\'t specify this parameter, this action returns an'
' InsufficientCapabilities error.'
)
},
{
'name': 'no-execute-changeset',
'action': 'store_false',
'dest': 'execute_changeset',
'required': False,
'help_text': (
'Indicates whether to execute the change set. Specify this'
' flag if you want to view your stack changes before'
' executing the change set. The command creates an'
' AWS CloudFormation change set and then exits without'
' executing the change set. After you view the change set,'
' execute it to implement your changes.'
)
},
{
'name': 'role-arn',
'required': False,
'help_text': (
'The Amazon Resource Name (ARN) of an AWS Identity and Access '
'Management (IAM) role that AWS CloudFormation assumes when '
'executing the change set.'
)
},
{
'name': 'notification-arns',
'required': False,
'schema': {
'type': 'array',
'items': {
'type': 'string'
}
},
'help_text': (
'Amazon Simple Notification Service topic Amazon Resource Names'
' (ARNs) that AWS CloudFormation associates with the stack.'
)
},
{
'name': 'fail-on-empty-changeset',
'required': False,
'action': 'store_true',
'group_name': 'fail-on-empty-changeset',
'dest': 'fail_on_empty_changeset',
'default': True,
'help_text': (
'Specify if the CLI should return a non-zero exit code if '
'there are no changes to be made to the stack. The default '
'behavior is to return a non-zero exit code.'
)
},
{
'name': 'no-fail-on-empty-changeset',
'required': False,
'action': 'store_false',
'group_name': 'fail-on-empty-changeset',
'dest': 'fail_on_empty_changeset',
'default': True,
'help_text': (
'Causes the CLI to return an exit code of 0 if there are no '
'changes to be made to the stack.'
)
},
{
'name': TAGS_CMD,
'action': 'store',
'required': False,
'schema': {
'type': 'array',
'items': {
'type': 'string'
}
},
'default': [],
'help_text': (
'A list of tags to associate with the stack that is created'
' or updated. AWS CloudFormation also propagates these tags'
' to resources in the stack if the resource supports it.'
' Syntax: TagKey1=TagValue1 TagKey2=TagValue2 ...'
)
}
]
def _run_main(self, parsed_args, parsed_globals):
cloudformation_client = \
self._session.create_client(
'cloudformation', region_name=parsed_globals.region,
endpoint_url=parsed_globals.endpoint_url,
verify=parsed_globals.verify_ssl)
template_path = parsed_args.template_file
if not os.path.isfile(template_path):
raise exceptions.InvalidTemplatePathError(
template_path=template_path)
# Parse parameters
with open(template_path, "r") as handle:
template_str = handle.read()
stack_name = parsed_args.stack_name
parameter_overrides = self.parse_key_value_arg(
parsed_args.parameter_overrides,
self.PARAMETER_OVERRIDE_CMD)
tags_dict = self.parse_key_value_arg(parsed_args.tags, self.TAGS_CMD)
tags = [{"Key": key, "Value": value}
for key, value in tags_dict.items()]
template_dict = yaml_parse(template_str)
parameters = self.merge_parameters(template_dict, parameter_overrides)
template_size = os.path.getsize(parsed_args.template_file)
if template_size > 51200 and not parsed_args.s3_bucket:
raise exceptions.DeployBucketRequiredError()
bucket = parsed_args.s3_bucket
if bucket:
s3_client = self._session.create_client(
"s3",
config=Config(signature_version='s3v4'),
region_name=parsed_globals.region,
verify=parsed_globals.verify_ssl)
s3_uploader = S3Uploader(s3_client,
bucket,
parsed_globals.region,
parsed_args.s3_prefix,
parsed_args.kms_key_id,
parsed_args.force_upload)
else:
s3_uploader = None
deployer = Deployer(cloudformation_client)
return self.deploy(deployer, stack_name, template_str,
parameters, parsed_args.capabilities,
parsed_args.execute_changeset, parsed_args.role_arn,
parsed_args.notification_arns, s3_uploader,
tags,
parsed_args.fail_on_empty_changeset)
def deploy(self, deployer, stack_name, template_str,
parameters, capabilities, execute_changeset, role_arn,
notification_arns, s3_uploader, tags,
fail_on_empty_changeset=True):
try:
result = deployer.create_and_wait_for_changeset(
stack_name=stack_name,
cfn_template=template_str,
parameter_values=parameters,
capabilities=capabilities,
role_arn=role_arn,
notification_arns=notification_arns,
s3_uploader=s3_uploader,
tags=tags
)
except exceptions.ChangeEmptyError as ex:
if fail_on_empty_changeset:
raise
write_exception(ex, outfile=get_stdout_text_writer())
return 0
if execute_changeset:
deployer.execute_changeset(result.changeset_id, stack_name)
deployer.wait_for_execute(stack_name, result.changeset_type)
sys.stdout.write(self.MSG_EXECUTE_SUCCESS.format(
stack_name=stack_name))
else:
sys.stdout.write(self.MSG_NO_EXECUTE_CHANGESET.format(
changeset_id=result.changeset_id))
sys.stdout.flush()
return 0
def merge_parameters(self, template_dict, parameter_overrides):
"""
CloudFormation CreateChangeset requires a value for every parameter
from the template, either specifying a new value or use previous value.
For convenience, this method will accept new parameter values and
generates a dict of all parameters in a format that ChangeSet API
will accept
:param parameter_overrides:
:return:
"""
parameter_values = []
if not isinstance(template_dict.get("Parameters", None), dict):
return parameter_values
for key, value in template_dict["Parameters"].items():
obj = {
"ParameterKey": key
}
if key in parameter_overrides:
obj["ParameterValue"] = parameter_overrides[key]
else:
obj["UsePreviousValue"] = True
parameter_values.append(obj)
return parameter_values
def parse_key_value_arg(self, arg_value, argname):
"""
Converts arguments that are passed as list of "Key=Value" strings
into a real dictionary.
:param arg_value list: Array of strings, where each string is of
form Key=Value
:param argname string: Name of the argument that contains the value
:return dict: Dictionary representing the key/value pairs
"""
result = {}
for data in arg_value:
# Split at first '=' from left
key_value_pair = data.split("=", 1)
if len(key_value_pair) != 2:
raise exceptions.InvalidKeyValuePairArgumentError(
argname=argname,
value=key_value_pair)
result[key_value_pair[0]] = key_value_pair[1]
return result
| .. | |||||
| __pycache__ | |||||
| __init__.py | |||||
| artifact_exporter.py | |||||
| deploy.py | |||||
| deployer.py | |||||
| exceptions.py | |||||
| package.py | |||||
| yamlhelper.py |