Add reference / best practice for AWS + Azure infrastructure (#1403)

Fixes DOC-442

Adds reference / best practice pages on AWS + Azure infrastructure setup
for self-hosted and hybrid in LangSmith.

Decided on a different placement from initial discussion, for the
following reasons:

These pages belong under "Self-hosted cloud architecture" rather than
"Setup guides" because they provide reference architecture and best
practices, not step-by-step installation instructions.

Structure allows for:

- Cloud-specific best practices before beginning setup
- Reference throughout their deployment lifecycle
- Architectural guidance separate from procedural installation steps
- Content on using self-hosted or hybrid models

## Preview

[AWS
reference](https://langchain-5e9cc07a-preview-selfho-1763139517-b0f2587.mintlify.app/langsmith/aws-self-hosted)
[Azure
reference](https://langchain-5e9cc07a-preview-selfho-1763139517-b0f2587.mintlify.app/langsmith/azure-self-hosted)

---------

Co-authored-by: Rahul Verma <rahul@langchain.dev>

Author: katmayb

src/docs.json

@@ -1362,6 +1362,13 @@
                     "langsmith/cloud"
                   ]
                 },
+                {
+                  "group": "Self-hosted cloud architecture",
+                  "pages": [
+                    "langsmith/aws-self-hosted",
+                    "langsmith/azure-self-hosted"
+                  ]
+                },
                 {
                   "group": "Hybrid",
                   "pages": [

src/langsmith/aws-self-hosted.mdx

@@ -0,0 +1,108 @@
+---
+title: Self-hosted on AWS
+sidebarTitle: AWS
+icon: "aws"
+---
+
+When running LangSmith on [Amazon Web Services (AWS)](https://aws.amazon.com/), you can set up in either [full self-hosted](/langsmith/self-hosted) or [hybrid](/langsmith/hybrid) mode. Full self-hosted mode deploys a complete LangSmith platform with observability functionality as well as the option to create agent deployments. Hybrid mode entails just the infrastructure to run agents in a data plane within your cloud, while our SaaS provides the control plane and observability functionality.
+
+This page provides AWS-specific architecture patterns, service recommendations, and best practices for deploying and operating LangSmith on AWS.
+
+<Note>
+LangChain provides Terraform modules specifically for AWS to help provision infrastructure for LangSmith. These modules can quickly set up EKS clusters, RDS, ElastiCache, S3, and networking resources.
+
+View the [AWS Terraform modules](https://github.com/langchain-ai/terraform/tree/main/modules/aws) for documentation and examples.
+</Note>
+
+## Reference architecture
+
+We recommend leveraging AWS's managed services to provide a scalable, secure, and resilient platform. The following architecture applies to both self-hosted and hybrid and aligns with the [AWS Well-Architected Framework](https://aws.amazon.com/architecture/well-architected/):
+
+![Architecture diagram showing AWS relations to LangSmith services](/langsmith/images/aws-architecture-self-hosted.png)
+
+- <Icon icon="globe" /> **Ingress & networking**: Requests enter via [Amazon Application Load Balancer (ALB)](https://aws.amazon.com/elasticloadbalancing/application-load-balancer/) within your [VPC](https://aws.amazon.com/vpc/), secured using [AWS WAF](https://aws.amazon.com/waf/) and [IAM](https://aws.amazon.com/iam/)-based authentication.
+- <Icon icon="cube" /> **Frontend & backend services:** Containers run on [Amazon EKS](https://aws.amazon.com/eks/), orchestrated behind the ALB. routes requests to other services within the cluster as necessary.
+- <Icon icon="database" /> **Storage & databases:**
+  - [Amazon RDS for PostgreSQL](https://aws.amazon.com/rds/postgresql/) or [Aurora](https://aws.amazon.com/rds/aurora/): metadata, projects, users, and short-term and long-term memory for deployed agents. LangSmith supports PostgreSQL version 14 or higher.
+  - [Amazon ElastiCache (Redis)](https://aws.amazon.com/elasticache/redis/): caching and job queues. ElastiCache must be in single instance mode, running Redis OSS version 5 or higher.
+  - ClickHouse + [Amazon EBS](https://aws.amazon.com/ebs/): analytics and trace storage.
+    - We recommend using an [externally managed ClickHouse solution](/langsmith/self-host-external-clickhouse) unless security or compliance reasons
+    prevent you from doing so.
+    - ClickHouse is not required for hybrid deployments.
+  - [Amazon S3](https://aws.amazon.com/s3/): object storage for trace artifacts and telemetry.
+
+- <Icon icon="sparkles" /> **LLM integration:** Optionally proxy requests to [Amazon Bedrock](https://aws.amazon.com/bedrock/) or [Amazon SageMaker](https://aws.amazon.com/sagemaker/) for LLM inference.
+- <Icon icon="chart-line" /> **Monitoring & observability:** Integrate with [Amazon CloudWatch](https://aws.amazon.com/cloudwatch/)
+
+
+## Compute options
+
+LangSmith supports multiple compute options depending on your requirements:
+
+| Compute option | Description | Suitable for |
+|-----------------|-------------|--------------|
+| **Elastic Kubernetes Service (preferred)** | Advanced scaling and multi-tenant support | Large enterprises |
+| **EC2-based** | Full control, BYO-infra | Regulated or air-gapped environments |
+
+## AWS Well-Architected best practices
+
+This reference is designed to align with the six pillars of the AWS Well-Architected Framework:
+
+### Operational excellence
+
+- Automate deployments with IaC ([CloudFormation](https://aws.amazon.com/cloudformation/) / [Terraform](https://www.terraform.io/)).
+- Use [AWS Systems Manager Parameter Store](https://docs.aws.amazon.com/systems-manager/latest/userguide/systems-manager-parameter-store.html) for configuration.
+- Configure your LangSmith instance to [export telemetry data](/langsmith/export-backend) and continuously monitor via [CloudWatch Logs](https://docs.aws.amazon.com/AmazonCloudWatch/latest/logs/WhatIsCloudWatchLogs.html).
+- The preferred method to manage [LangSmith deployments](/langsmith/deployments) is to create a CI process that builds [Agent Server](/langsmith/agent-server) images and pushes them to [ECR](https://aws.amazon.com/ecr/). Create a test deployment for pull requests before deploying a new revision to staging or production upon PR merge.
+
+### Security
+
+- Use [IAM](https://aws.amazon.com/iam/) roles with least-privilege policies.
+- Enable encryption at rest ([RDS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Overview.Encryption.html), [S3](https://docs.aws.amazon.com/AmazonS3/latest/userguide/UsingEncryption.html), ClickHouse volumes) and in transit (TLS 1.2+).
+- Integrate with [AWS Secrets Manager](https://aws.amazon.com/secrets-manager/) for credentials.
+- Use [Amazon Cognito](https://aws.amazon.com/cognito/) as an IDP in conjunction with LangSmith's built-in authentication and authorization features to secure access to agents and their tools.
+
+### Reliability
+
+- Replicate the LangSmith [data plane](/langsmith/data-plane) across regions: Deploy identical data planes to Kubernetes clusters in different regions for LangSmith Deployment. Deploy [RDS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Concepts.MultiAZSingleStandby.html) and [ECS](https://aws.amazon.com/ecs/) services across [Multi-AZ](https://aws.amazon.com/about-aws/global-infrastructure/regions_az/).
+- Implement [auto-scaling](https://aws.amazon.com/autoscaling/) for backend workers.
+- Use [Amazon Route 53](https://aws.amazon.com/route53/) health checks and failover policies.
+
+### Performance efficiency
+
+- Leverage [EC2](https://aws.amazon.com/ec2/) instances for optimized compute.
+- Use [S3 Intelligent-Tiering](https://aws.amazon.com/s3/storage-classes/intelligent-tiering/) for infrequently accessed trace data.
+
+### Cost optimization
+
+- Right-size [EKS](https://aws.amazon.com/eks/) clusters using [Compute Savings Plans](https://aws.amazon.com/savingsplans/compute-pricing/).
+- Monitor cost KPIs using [AWS Cost Explorer](https://aws.amazon.com/aws-cost-management/aws-cost-explorer/) dashboards.
+
+### Sustainability
+
+- Minimize idle workloads with on-demand compute.
+- Store telemetry in low-latency, low-cost tiers.
+- Enable auto-shutdown for non-prod environments.
+
+## Security and compliance
+
+LangSmith can be configured for:
+
+- [PrivateLink](https://aws.amazon.com/privatelink/)-only access (no public internet exposure, besides egress necessary for billing).
+- [KMS](https://aws.amazon.com/kms/)-based encryption keys for S3, RDS, and EBS.
+- Audit logging to [CloudWatch](https://aws.amazon.com/cloudwatch/) and [AWS CloudTrail](https://aws.amazon.com/cloudtrail/).
+
+Customers can deploy in [GovCloud](https://aws.amazon.com/govcloud-us/), ISO, or HIPAA regions as needed.
+
+## Monitoring and evals
+
+Use LangSmith to:
+
+- Capture traces from LLM apps running on [Bedrock](https://aws.amazon.com/bedrock/) or [SageMaker](https://aws.amazon.com/sagemaker/).
+- Evaluate model outputs via [LangSmith datasets](/langsmith/manage-datasets).
+- Track latency, token usage, and success rates.
+
+Integrate with:
+
+- [AWS CloudWatch](https://aws.amazon.com/cloudwatch/) dashboards.
+- [OpenTelemetry](https://opentelemetry.io/) and [Prometheus](https://prometheus.io/) exporters.