def test_pull_repo_https_credentials(self, mock_check_output,
mock_check_call):
"""
Tests the pull_repo by mocking the subprocess.check_output to return git http credentials.
Args:
mock_check_output: MagicMock, returns valid git responses in order of being called, with the
repo coming from the ef_site_config.py
Returns:
None
Raises:
AssertionError if any of the assert checks fail
"""
mock_check_output.side_effect = [
"origin\thttps://" + EFConfig.EF_REPO + ".git",
EFConfig.EF_REPO_BRANCH
]
try:
ef_conf_utils.pull_repo()
except RuntimeError as exception:
self.fail(
"Exception occurred during test_pull_repo_ssh_credentials: " +
exception.message)
def main():
# Fetch args and load context
context = handle_args_and_set_context(sys.argv[1:])
# Refresh from repo if necessary and possible (gets don't need service registry, sets do)
if (context.rollback or context.value) and not (context.devel or getenv(
"JENKINS_URL", False)):
print("Refreshing repo")
try:
pull_repo()
except RuntimeError as error:
fail("Error checking or pulling repo", error)
# Sign on to AWS and create clients
if context.whereami in ["ec2"]:
# Always use instance credentials in EC2. One day we'll have "lambda" in there too, so use "in" w/ list
aws_session_alias = None
else:
# Otherwise use local user credential matching the account alias
aws_session_alias = context.account_alias
# Make AWS clients
try:
context.set_aws_clients(
create_aws_clients(EFConfig.DEFAULT_REGION, aws_session_alias,
"ec2", "s3", "sts"))
except RuntimeError:
fail(
"Exception creating AWS client in region {} with aws account alias {} (None=instance credentials)"
.format(EFConfig.DEFAULT_REGION, aws_session_alias))
# Instantiate a versionresolver - we'll use some of its methods
context._versionresolver = EFVersionResolver(context.aws_client())
# Carry out the requested action
if context.get:
cmd_get(context)
elif context.history:
cmd_history(context)
elif context.rollback:
cmd_rollback(context)
elif context.rollback_to:
cmd_rollback_to(context)
elif context.show:
cmd_show(context)
elif context.value:
cmd_set(context)
def test_pull_repo_incorrect_repo(self, mock_check_output):
"""
Tests pull_repo to see if it throws an exception when the supplied repo doesn't match the one in
ef_site_config.py
Args:
mock_check_output: MagicMock, returns git responses with non matching repo names
Returns:
None
Raises:
AssertionError if any of the assert checks fail
"""
mock_check_output.side_effect = [
"[email protected]:company/wrong_repo.git "
"[email protected]:company/wrong_repo.git"
]
with self.assertRaises(RuntimeError) as exception:
ef_conf_utils.pull_repo()
self.assertIn("Must be in", exception.exception.message)
def test_pull_repo_incorrect_branch(self, mock_check_output):
"""
Tests pull_repo to see if it throws an error when the mocked check_output states it's on a branch
other than the one specified in ef_site_config.py
Args:
mock_check_output: MagicMock, returns some valid git responses, with the
repo coming from the ef_site_config.py, and then a non matching branch name
Returns:
None
Raises:
AssertionError if any of the assert checks fail
"""
mock_check_output.side_effect = [
"user@" + EFConfig.EF_REPO.replace("/", ":", 1) + ".git",
"wrong_branch"
]
with self.assertRaises(RuntimeError) as exception:
ef_conf_utils.pull_repo()
self.assertIn("Must be on branch:", exception.exception.message)
def main():
global CONTEXT, CLIENTS, AWS_RESOLVER
CONTEXT = handle_args_and_set_context(sys.argv[1:])
if not (CONTEXT.devel or getenv("JENKINS_URL", False)):
try:
pull_repo()
except RuntimeError as error:
fail("Error checking or pulling repo", error)
else:
print("Not refreshing repo because --devel was set or running on Jenkins")
# sign on to AWS and create clients and get account ID
try:
# If running in EC2, always use instance credentials. One day we'll have "lambda" in there too, so use "in" w/ list
if CONTEXT.whereami == "ec2":
CLIENTS = create_aws_clients(EFConfig.DEFAULT_REGION, None, "ec2", "iam", "kms")
CONTEXT.account_id = str(json.loads(http_get_metadata('iam/info'))["InstanceProfileArn"].split(":")[4])
else:
# Otherwise, we use local user creds based on the account alias
CLIENTS = create_aws_clients(EFConfig.DEFAULT_REGION, CONTEXT.account_alias, "ec2", "iam", "kms", "sts")
CONTEXT.account_id = get_account_id(CLIENTS["sts"])
except RuntimeError:
fail("Exception creating AWS clients in region {} with profile {}".format(
EFConfig.DEFAULT_REGION, CONTEXT.account_alias))
# Instantiate an AWSResolver to lookup AWS resources
AWS_RESOLVER = EFAwsResolver(CLIENTS)
# Show where we're working
if not CONTEXT.commit:
print("=== DRY RUN ===\nUse --commit to create roles and security groups\n=== DRY RUN ===")
print("env: {}".format(CONTEXT.env))
print("env_full: {}".format(CONTEXT.env_full))
print("env_short: {}".format(CONTEXT.env_short))
print("aws account profile: {}".format(CONTEXT.account_alias))
print("aws account number: {}".format(CONTEXT.account_id))
# Step through all services in the service registry
for CONTEXT.service in CONTEXT.service_registry.iter_services():
service_name = CONTEXT.service[0]
target_name = "{}-{}".format(CONTEXT.env, service_name)
sr_entry = CONTEXT.service[1]
service_type = sr_entry['type']
print_if_verbose("service: {} in env: {}".format(service_name, CONTEXT.env))
# Is this service_type handled by this tool?
if service_type not in SUPPORTED_SERVICE_TYPES:
print_if_verbose("unsupported service type: {}".format(service_type))
continue
# Is the env valid for this service?
if CONTEXT.env_full not in CONTEXT.service_registry.valid_envs(service_name):
print_if_verbose("env: {} not valid for service {}".format(CONTEXT.env_full, service_name))
continue
# Is the service_type allowed in 'global'?
if CONTEXT.env == "global" and service_type not in GLOBAL_SERVICE_TYPES:
print_if_verbose("env: {} not valid for service type {}".format(CONTEXT.env, service_type))
continue
# 1. CONDITIONALLY MAKE ROLE AND/OR INSTANCE PROFILE FOR THE SERVICE
# If service gets a role, create with either a custom or default AssumeRole policy document
conditionally_create_role(target_name, sr_entry)
# Instance profiles and security groups are not allowed in the global scope
if CONTEXT.env != "global":
conditionally_create_profile(target_name, service_type)
# 2. SECURITY GROUP(S) FOR THE SERVICE : only some types of services get security groups
conditionally_create_security_groups(CONTEXT.env, service_name, service_type)
# 3. KMS KEY FOR THE SERVICE : only some types of services get kms keys
conditionally_create_kms_key(target_name, service_type)
# 4. ATTACH AWS MANAGED POLICIES TO ROLE
conditionally_attach_aws_managed_policies(target_name, sr_entry)
# 5. ATTACH CUSTOMER MANAGED POLICIES TO ROLE
conditionally_attach_customer_managed_policies(target_name, sr_entry)
# 6. INLINE SERVICE'S POLICIES INTO ROLE
# only eligible service types with "policies" sections in the service registry get policies
conditionally_inline_policies(target_name, sr_entry)
print("Exit: success")
def main():
context = handle_args_and_set_context(sys.argv[1:])
if context.changeset:
print(
"=== CHANGESET ===\nCreating changeset only. See AWS GUI for changeset\n=== CHANGESET ==="
)
elif not context.commit:
print(
"=== DRY RUN ===\nValidation only. Use --commit to push template to CF\n=== DRY RUN ==="
)
service_name = os.path.basename(os.path.splitext(context.template_file)[0])
template_file_dir = os.path.dirname(context.template_file)
# parameter file may not exist, but compute the name it would have if it did
parameter_file_dir = template_file_dir + "/../parameters"
parameter_file = parameter_file_dir + "/" + service_name + ".parameters." + context.env_full + ".json"
# If running in EC2, use instance credentials (i.e. profile = None)
# otherwise, use local credentials with profile name in .aws/credentials == account alias name
if context.whereami == "ec2" and not os.getenv("JENKINS_URL", False):
profile = None
else:
profile = context.account_alias
# Get service registry and refresh repo if appropriate
try:
if not (context.devel or os.getenv("JENKINS_URL", False)):
pull_repo()
else:
print(
"not refreshing repo because --devel was set or running on Jenkins"
)
except Exception as error:
fail("Error: ", error)
# Service must exist in service registry
if context.service_registry.service_record(service_name) is None:
fail("service: {} not found in service registry: {}".format(
service_name, context.service_registry.filespec))
if not context.env_full in context.service_registry.valid_envs(
service_name):
fail("Invalid environment: {} for service_name: {}\nValid environments are: {}" \
.format(context.env_full, service_name, ", ".join(context.service_registry.valid_envs(service_name))))
if context.percent and (context.percent <= 0 or context.percent > 100):
fail(
"Percent value cannot be less than or equal to 0 and greater than 100"
)
# Set the region found in the service_registry. Default is EFConfig.DEFAULT_REGION if region key not found
region = context.service_registry.service_region(service_name)
if context.verbose:
print("service_name: {}".format(service_name))
print("env: {}".format(context.env))
print("env_full: {}".format(context.env_full))
print("env_short: {}".format(context.env_short))
print("region: {}".format(region))
print("template_file: {}".format(context.template_file))
print("parameter_file: {}".format(parameter_file))
if profile:
print("profile: {}".format(profile))
print("whereami: {}".format(context.whereami))
print("service type: {}".format(
context.service_registry.service_record(service_name)["type"]))
template = resolve_template(template=context.template_file,
profile=profile,
env=context.env,
region=region,
service=service_name,
verbose=context.verbose)
# Create clients - if accessing by role, profile should be None
try:
clients = create_aws_clients(region, profile, "cloudformation",
"autoscaling")
except RuntimeError as error:
fail(
"Exception creating clients in region {} with profile {}".format(
region, profile), error)
stack_name = context.env + "-" + service_name
try:
stack_exists = clients["cloudformation"].describe_stacks(
StackName=stack_name)
except botocore.exceptions.ClientError:
stack_exists = False
# Load parameters from file
if os.path.isfile(parameter_file):
parameters_template = resolve_template(template=parameter_file,
profile=profile,
env=context.env,
region=region,
service=service_name,
verbose=context.verbose)
try:
parameters = json.loads(parameters_template)
except ValueError as error:
fail("JSON error in parameter file: {}".format(
parameter_file, error))
else:
parameters = []
if context.percent:
print("Modifying deploy rate to {}%".format(context.percent))
modify_template = json.loads(template)
for key in modify_template["Resources"]:
if modify_template["Resources"][key][
"Type"] == "AWS::AutoScaling::AutoScalingGroup":
if modify_template["Resources"][key]["UpdatePolicy"]:
autoscaling_group = modify_template["Resources"][key][
"Properties"]
service = autoscaling_group["Tags"][0]["Value"]
autoscaling_group_properties = get_autoscaling_group_properties(
clients["autoscaling"],
service.split("-")[0],
"-".join(service.split("-")[1:]))
new_max_batch_size = calculate_max_batch_size(
clients["autoscaling"], service, context.percent)
modify_template["Resources"][key]["UpdatePolicy"][
"AutoScalingRollingUpdate"][
"MaxBatchSize"] = new_max_batch_size
current_desired = autoscaling_group_properties[0][
"DesiredCapacity"] if autoscaling_group_properties else "missing"
print(
"Service {} [current desired: {}, calculated max batch size: {}]"
.format(service, current_desired, new_max_batch_size))
template = json.dumps(modify_template)
# Detect if the template exceeds the maximum size that is allowed by Cloudformation
if len(template) > CLOUDFORMATION_SIZE_LIMIT:
# Compress the generated template by removing whitespaces
print(
"Template exceeds the max allowed length that Cloudformation will accept. Compressing template..."
)
print("Uncompressed size of template: {}".format(len(template)))
unpacked = json.loads(template)
template = json.dumps(unpacked, separators=(",", ":"))
print("Compressed size of template: {}".format(len(template)))
# Validate rendered template before trying the stack operation
if context.verbose:
print("Validating template")
try:
clients["cloudformation"].validate_template(TemplateBody=template)
json.loads(
template) # Tests for valid JSON syntax, oddly not handled above
except botocore.exceptions.ClientError as error:
fail("Template did not pass validation", error)
except ValueError as e: # includes simplejson.decoder.JSONDecodeError
fail('Failed to decode JSON', e)
print("Template passed validation")
# DO IT
try:
if context.changeset:
print("Creating changeset: {}".format(stack_name))
results = clients["cloudformation"].create_change_set(
StackName=stack_name,
TemplateBody=template,
Parameters=parameters,
Capabilities=[
'CAPABILITY_AUTO_EXPAND', 'CAPABILITY_IAM',
'CAPABILITY_NAMED_IAM'
],
ChangeSetName=stack_name,
ClientToken=stack_name)
if is_stack_termination_protected_env(context.env):
enable_stack_termination_protection(clients, stack_name)
results_ids = {
key: value
for key, value in results.iteritems()
if key in ('Id', 'StackId')
}
print("Changeset Info: {}".format(json.dumps(results_ids)))
elif context.commit:
if stack_exists:
print("Updating stack: {}".format(stack_name))
clients["cloudformation"].update_stack(
StackName=stack_name,
TemplateBody=template,
Parameters=parameters,
Capabilities=[
'CAPABILITY_AUTO_EXPAND', 'CAPABILITY_IAM',
'CAPABILITY_NAMED_IAM'
])
if is_stack_termination_protected_env(context.env):
enable_stack_termination_protection(clients, stack_name)
else:
print("Creating stack: {}".format(stack_name))
clients["cloudformation"].create_stack(
StackName=stack_name,
TemplateBody=template,
Parameters=parameters,
Capabilities=[
'CAPABILITY_AUTO_EXPAND', 'CAPABILITY_IAM',
'CAPABILITY_NAMED_IAM'
])
if is_stack_termination_protected_env(context.env):
enable_stack_termination_protection(clients, stack_name)
if context.poll_status:
while True:
stack_status = clients["cloudformation"].describe_stacks(
StackName=stack_name)["Stacks"][0]["StackStatus"]
if context.verbose:
print("{}".format(stack_status))
if stack_status.endswith('ROLLBACK_COMPLETE'):
print(
"Stack went into rollback with status: {}".format(
stack_status))
sys.exit(1)
elif re.match(r".*_COMPLETE(?!.)",
stack_status) is not None:
break
elif re.match(r".*_FAILED(?!.)", stack_status) is not None:
print("Stack failed with status: {}".format(
stack_status))
sys.exit(1)
elif re.match(r".*_IN_PROGRESS(?!.)",
stack_status) is not None:
time.sleep(EFConfig.EF_CF_POLL_PERIOD)
elif context.lint:
tester = CFTemplateLinter(template)
tester.run_tests()
exit(tester.exit_code)
except botocore.exceptions.ClientError as error:
if error.response["Error"][
"Message"] in "No updates are to be performed.":
# Don't fail when there is no update to the stack
print("No updates are to be performed.")
else:
fail("Error occurred when creating or updating stack", error)