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Get outputs from cross-regional AWS CDK stacks

Project description

awscdk-jsii-template NPM version PyPI version Release

cdk-remote-stack

Get outputs from cross-regional AWS CDK stacks

Why

AWS CDK cross-regional cross-stack reference is not easy with the native AWS CDK construct library.

cdk-remote-stack aims to simplify the cross-regional cross-stack reference to help you easily build cross-regional multi-stack AWS CDK apps.

Sample

Let's say we have two cross-region CDK stacks in the same cdk app:

  1. stackJP - cdk stack in JP to create a SNS topic
  2. stackUS - cdk stack in US to get the Outputs from stackJP and print out the SNS TopicName from stackJP Outputs.
# Example automatically generated without compilation. See https://github.com/aws/jsii/issues/826
from cdk_remote_stack import StackOutputs
import aws_cdk.core as cdk

app = cdk.App()

env_jP = {
    "region": "ap-northeast-1",
    "account": process.env.CDK_DEFAULT_ACCOUNT
}

env_uS = {
    "region": "us-west-2",
    "account": process.env.CDK_DEFAULT_ACCOUNT
}

# first stack in JP
stack_jP = cdk.Stack(app, "demo-stack-jp", env=env_jP)

cdk.CfnOutput(stack_jP, "TopicName", value="foo")

# second stack in US
stack_uS = cdk.Stack(app, "demo-stack-us", env=env_uS)

# ensure the dependency
stack_uS.add_dependency(stack_jP)

# get the stackJP stack outputs from stackUS
outputs = StackOutputs(stack_uS, "Outputs", stack=stack_jP)

remote_output_value = outputs.get_att_string("TopicName")

# the value should be exactly the same with the output value of `TopicName`
cdk.CfnOutput(stack_uS, "RemoteTopicName", value=remote_output_value)

always get the latest stack output

By default, the StackOutputs construct will always try to get the latest output from the source stack, you may opt out by setting alwaysUpdate to false to turn this feature off.

For example:

# Example automatically generated without compilation. See https://github.com/aws/jsii/issues/826
outputs = StackOutputs(stack_uS, "Outputs",
    stack=stack_jP,
    always_update=False
)

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