Unable to connect AWS Managed grafana service to Private RDS instance

Please follow this link to tshoot the 504 errors. https://aws.amazon.com/premiumsupport/knowledge-center/opensearch-http-504-gateway-timeout/

As of now, Amazon Managed Grafana (AMG) does not support data sources that are not accessible over the internet (data sources must be public and reachable over the internet in order to communicate with AMG). However, there is already a feature request for this and due to the managed nature of the service, before a formal introduction, features are required to be tested and pre-configured as per the existing ecosystem because of which I unfortunately would not be able to provide an ETA/timeline for the same but would recommend you to refer references [1][2] for further updates.

[1] https://github.com/aws/amazon-managed-grafana-roadmap [2] AMG Resources https://aws.amazon.com/grafana/resources/?nc=sn&loc=4&msg-blogs.sort-by=item.additionalFields.createdDate&msg-blogs.sort-order=desc&awsm.page-msg-blogs=1

Hi, have you configured the VPC connection in your AMG workspace before connecting the RDS data source? See below resources on how to configure VPC connection in your Amazon Managed Grafana:

• User guide and self-troubleshoot
• Blog

If the issue persists after you connect to VPC, please open a ticket, and we will further check your workspace logs to troubleshoot the connection issue.