def generate_command(ctx, path):
"""
Prints the template.
Prints the template used for stack in PATH.
"""
stack = get_stack(ctx, path)
write(stack.template.body)
def describe_policy(ctx, path):
"""
Displays the stack policy used.
"""
stack = get_stack(ctx, path)
response = stack.get_policy()
write(response.get('StackPolicyBody', {}))
def execute_command(ctx, path, change_set_name, yes):
"""
Executes a change set.
"""
stack = get_stack(ctx, path)
confirmation("execute", yes, change_set=change_set_name, stack=path)
stack.execute_change_set(change_set_name)
def list_change_sets(ctx, path):
"""
List change sets for stack.
"""
stack = get_stack(ctx, path)
response = stack.list_change_sets()
if response['ResponseMetadata']['HTTPStatusCode'] == 200:
del response['ResponseMetadata']
write(response, ctx.obj["output_format"])
def describe_change_set(ctx, path, change_set_name, verbose):
"""
Describes the change set.
"""
stack = get_stack(ctx, path)
description = stack.describe_change_set(change_set_name)
if not verbose:
description = simplify_change_set_description(description)
write(description, ctx.obj["output_format"])
def validate_command(ctx, path):
"""
Validates the template.
Validates the template used for stack in PATH.
"""
stack = get_stack(ctx, path)
response = stack.template.validate()
if response['ResponseMetadata']['HTTPStatusCode'] == 200:
del response['ResponseMetadata']
click.echo("Template is valid. Template details:\n")
write(response, ctx.obj["output_format"])
def set_policy_command(ctx, path, policy_file, built_in):
"""
Sets stack policy.
Sets a specific stack policy for either a file or using a built-in policy.
"""
stack = get_stack(ctx, path)
if built_in == 'deny-all':
stack.lock()
elif built_in == 'allow-all':
stack.unlock()
else:
stack.set_policy(policy_file)
def list_outputs(ctx, path, export):
"""
List outputs for stack.
"""
stack = get_stack(ctx, path)
response = stack.describe_outputs()
if export == "envvar":
write("\n".join([
"export SCEPTRE_{0}={1}".format(output["OutputKey"],
output["OutputValue"])
for output in response
]))
else:
write(response, ctx.obj["output_format"])
def create_command(ctx, path, change_set_name, yes):
"""
Creates a stack or a change set.
Creates a stack for a given config PATH. Or if CHANGE_SET_NAME is specified
creates a change set for stack in PATH.
"""
action = "create"
stack = get_stack(ctx, path)
if change_set_name:
confirmation(action, yes, change_set=change_set_name, stack=path)
stack.create_change_set(change_set_name)
else:
confirmation(action, yes, stack=path)
response = stack.create()
if response != StackStatus.COMPLETE:
exit(1)
def update_command(ctx, path, change_set, verbose, yes):
"""
Update a stack.
Updates a stack for a given config PATH. Or perform an update via
change-set when the change-set flag is set.
"""
stack = get_stack(ctx, path)
if change_set:
change_set_name = "-".join(["change-set", uuid1().hex])
stack.create_change_set(change_set_name)
try:
# Wait for change set to be created
status = stack.wait_for_cs_completion(change_set_name)
# Exit if change set fails to create
if status != StackChangeSetStatus.READY:
exit(1)
# Describe changes
description = stack.describe_change_set(change_set_name)
if not verbose:
description = simplify_change_set_description(description)
write(description, ctx.obj["output_format"])
# Execute change set if happy with changes
if yes or click.confirm("Proceed with stack update?"):
stack.execute_change_set(change_set_name)
finally:
# Clean up by deleting change set
stack.delete_change_set(change_set_name)
else:
confirmation("update", yes, stack=path)
response = stack.update()
if response != StackStatus.COMPLETE:
exit(1)