Hardcode partition fails the deployment in non-aws partition

[zxkane]

Environment information

System:
  OS: Linux 6.8 Ubuntu 22.04.5 LTS 22.04.5 LTS (Jammy Jellyfish)
  CPU: (8) x64 Intel(R) Xeon(R) Platinum 8488C
  Memory: 21.47 GB / 30.82 GB
  Shell: /usr/bin/zsh
Binaries:
  Node: 20.18.0 - ~/.nvm/versions/node/v20.18.0/bin/node
  Yarn: 1.22.22 - ~/.linuxbrew/homebrew/bin/yarn
  npm: 10.8.2 - ~/.nvm/versions/node/v20.18.0/bin/npm
  pnpm: 9.6.0 - ~/.nvm/versions/node/v20.18.0/bin/pnpm
NPM Packages:
  @aws-amplify/auth-construct: 1.5.1
  @aws-amplify/backend: 1.13.0
  @aws-amplify/backend-auth: 1.4.2
  @aws-amplify/backend-cli: 1.4.7
  @aws-amplify/backend-data: 1.4.0
  @aws-amplify/backend-deployer: 1.1.14
  @aws-amplify/backend-function: 1.12.0
  @aws-amplify/backend-output-schemas: 1.4.0
  @aws-amplify/backend-output-storage: 1.1.4
  @aws-amplify/backend-secret: 1.1.5
  @aws-amplify/backend-storage: 1.2.4
  @aws-amplify/cli-core: 1.2.2
  @aws-amplify/client-config: 1.5.5
  @aws-amplify/deployed-backend-client: 1.5.0
  @aws-amplify/form-generator: 1.0.3
  @aws-amplify/model-generator: 1.0.12
  @aws-amplify/platform-core: 1.6.0
  @aws-amplify/plugin-types: 1.8.0
  @aws-amplify/sandbox: 1.2.9
  @aws-amplify/schema-generator: 1.2.6
  aws-amplify: 6.12.1
  aws-cdk: 2.176.0
  aws-cdk-lib: 2.176.0
  typescript: 5.7.3
AWS environment variables:
  AWS_PROFILE = kane-bjs
  AWS_REGION = cn-north-1
No CDK environment variables

Data packages

[email protected] /data/git/game-match-playground
├─┬ @aws-amplify/[email protected]
│ └─┬ @aws-amplify/[email protected]
│   └── @aws-amplify/[email protected]
└─┬ @aws-amplify/[email protected]
  └─┬ @aws-amplify/[email protected]
    └── @aws-amplify/[email protected]

Description

Tried to deploy a sandbox env of an Amplify application to AWS China region via npx ampx sandbox, it failed on amplifyDataAmplifyTableManagerNestedStack stack with below error,

Resource handler returned message: "Partition "aws" is not valid for resource "arn:aws:dynamodb:cn-north-1:xxx:table/*-ewdacgq5anbn3olwziz4vo2sby-NONE". (Service: Iam, Status Code: 400, Request ID: 6035f8dc-0113-40b3-b220-70ca7abbb893)" (RequestToken: 3cfce6bb-61e6-a2c3-b639-93e2e2b06c98, HandlerErrorCode: InvalidRequest)

I think it's caused by the custom resource with invalid IAM policy which manages the DDB tables.

amplify-category-api/packages/amplify-graphql-model-transformer/src/resources/amplify-dynamodb-table/amplify-dynamo-model-resource-generator.ts

Line 79 in d96f49a

cdk.Fn.sub('arn:aws:dynamodb:${AWS::Region}:${AWS::AccountId}:table/*-${apiId}-${envName}', {

[AnilMaktala]

Hey @zxkane, Thanks for bringing this up. It appears to be a region-specific issue. Let me review it with the team and get back to you.

[AnilMaktala]

Hey @zxkane, Unfortunately, sandbox environments are not supported in this region. Currently, sandbox environments are only available in the regions listed for Amplify Hosting, as mentioned here.

[zxkane]

It does not make sense for me. Amplify Gen2 builds upon AWS CDK, which helps build the infrastructure on AWS and then deploy it to multiple partitions and regions. Why must an Amplify Gen2 application be deployed by Amplify Hosting?