[BUG]AWS IAM role set through IRSA is not used correctly

[IgorMilavec]

Describe the bug We are using Flowise 1.8.3 on EKS (K8s on AWS). The SA is mapped to IAM role through IRSA. As a consequence, these two environment variables are added to the process: AWS_ROLE_ARN=arn:aws:iam::(accountid):role/(rolename) AWS_WEB_IDENTITY_TOKEN_FILE=/var/run/secrets/eks.amazonaws.com/serviceaccount/token If we try to use the AWS ChatBedrock without explicit AWS Credentials, we get an error "Role Arn 'arn:aws:iam::(accountid):role/(rolename)' needs to be assumed with web identity, but no role assumption callback was provided."

To Reproduce Steps to reproduce the behavior: N/A

Expected behavior The IRSA role should be used to access Bedrock and other AWS resources.

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Setup

• Installation EKS v1.27.13
• Flowise Version 1.8.3
• OS: N/A
• Browser N/A

Additional context Add any other context about the problem here.

[HenryHengZJ]

I think we had similar fix - https://github.com/FlowiseAI/Flowise/pull/2470 for allowing user to access Bedrock through roles.

@danieldabate, with your fix, bedrock should be able to get these env variables and use it no?

[danieldabate]

This is a limitation in langchainjs. There is an open discussion there that you might want to upvote 😀

https://github.com/langchain-ai/langchainjs/discussions/5661