Support Bedrock cross region inference

[SIN1109]

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1. Is this request related to a challenge you're experiencing? Tell me about your story.

Can you consider to support AWS bedrock cross region inference, like Claude 3.5 sonnet model
https://docs.aws.amazon.com/bedrock/latest/userguide/cross-region-inference.html

2. Additional context or comments

https://docs.aws.amazon.com/bedrock/latest/userguide/cross-region-inference.html

3. Can you help us with this feature?

• I am interested in contributing to this feature.

[dosubot]

Dify currently supports AWS Bedrock as one of the Model-as-a-Service (MaaS) vendors, including the ability to specify the AWS region for model inference. However, there is no specific documentation or code available in the repository that outlines how to set up cross-region inference for AWS Bedrock models.

To support cross-region inference, you would need to configure the region_name in the Config object when setting up the Bedrock runtime client. Here is an example of how this can be done:

from botocore.config import Config
import boto3

client_config = Config(
    region_name='us-west-2'  # Specify the desired AWS region
)

bedrock_runtime = boto3.client(
    service_name='bedrock-runtime',
    config=client_config,
    aws_access_key_id='your_access_key',
    aws_secret_access_key='your_secret_access_key'
)

This configuration ensures that the Bedrock runtime client operates in the specified AWS region, which is crucial for cross-region inference ^[1].

For more detailed steps on deploying and configuring cross-region inference, you can refer to the AWS Bedrock documentation.

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