Skip to content

docs: add more information about egress in LGP hybrid #728

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 2 commits into from
Oct 2, 2025
Merged

docs: add more information about egress in LGP hybrid #728

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
4ae77e5
docs: add more information about egress in LGP hybrid
joaquin-borggio-lc Oct 2, 2025
3735b09
addressed comments
joaquin-borggio-lc Oct 2, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
10 changes: 10 additions & 0 deletions src/langgraph-platform/hybrid.mdx
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,16 @@ For information on how to deploy a [LangGraph Server](/langgraph-platform/langgr
If you would like to deploy to Kubernetes, you can follow the [Hybrid deployment guide](/langgraph-platform/deploy-hybrid).
</Tip>

### Egress to LangSmith and the control plane

In the hybrid deployment model, your self-hosted data plane will send network requests to the control plane to poll for changes that need to be implemented in the data plane. Traces from data plane deployments also get sent to the LangSmith instance integrated with the control plane. This traffic to the control plane is encrypted, over HTTPS. The data plane authenticates with the control plane with a LangSmith API key.

In order to enable this egress, you may need to update internal firewall rules or cloud resources (such as Security Groups) to [allow certain IP addresses](/langsmith/cloud-architecture-and-scalability#ingress-into-langchain-saas).

<Warning>
AWS/Azure PrivateLink or GCP Private Service Connect is currently not supported. This traffic will go over the internet.
</Warning>

## Listeners

In a hybrid deployment, one or more ["listener" applications](/langgraph-platform/data-plane#”listener”-application) can be deployed depending on the organization of LangSmith workspaces and Kubernetes clusters.
Expand Down