Add Transit Gateway Deployment Guide #17
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This commit adds comprehensive documentation for deploying Quilt with Transit Gateway routing instead of NAT Gateway: New Documentation: - howto-3-transit-gateway-deployment.md: Step-by-step guide for TGW deployment with bash scripts, validation procedures, and troubleshooting - custom-gateway/01-vir-request.txt: Customer request email thread - custom-gateway/02-vir-issue.md: Product management analysis of request - custom-gateway/03-gateway-audit.md: Complete audit of AWS service dependencies (40+ services documented) - custom-gateway/04-gateway-workaround.md: Customer-specific workaround - custom-gateway/05-transit-gateway-howto.md: Original detailed guide Key Insights: - Zero code changes required when using existing_vpc: true - VPC endpoints eliminate 90%+ of TGW internet traffic - Cost-effective for enterprise customers with existing TGW infrastructure - Supports fully private architecture with proper VPC endpoint configuration The howto-3 guide follows the same format as howto-2-network-1.0-migration.md with tags, summary, bash scripts, and validation procedures. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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@sir-sigurd Is this true? Would you recommend something different? |
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Pull request overview
This PR adds comprehensive documentation for deploying Quilt with AWS Transit Gateway routing instead of NAT Gateway, based on a customer request analysis. The documentation demonstrates that Quilt supports TGW routing without code changes when using the existing_vpc: true configuration.
Changes:
- Added customer analysis documentation showing TGW is compatible with existing Quilt configuration
- Created detailed technical deployment guide with automation scripts
- Documented VPC endpoint configuration to minimize TGW internet traffic
Reviewed changes
Copilot reviewed 6 out of 6 changed files in this pull request and generated no comments.
Show a summary per file
| File | Description |
|---|---|
| howto-3-transit-gateway-deployment.md | Production-ready deployment guide with step-by-step bash scripts, validation procedures, and cost analysis for TGW routing |
| custom-gateway/05-transit-gateway-howto.md | Detailed technical guide covering architecture patterns, implementation steps, and troubleshooting for enterprise customers |
| custom-gateway/04-gateway-workaround.md | Customer-specific workaround documentation explaining zero code changes solution for Vir Biotechnology |
| custom-gateway/03-gateway-audit.md | Complete AWS service dependency audit documenting 40+ services, VPC endpoint recommendations, and cost analysis |
| custom-gateway/02-vir-issue.md | Product management analysis including business impact assessment, technical questions, and recommended action plan |
| custom-gateway/01-vir-request.txt | Original customer email thread documenting the TGW routing request |
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Rewrote guide to be concise and actionable for busy IT admins: - Reduced from 34KB to 10KB - Cut fluff, kept only essential steps - 4 simple steps: endpoints, parameters, deploy, validate - Quick troubleshooting section - Fixed markdown linting issues (MD032, MD060, MD034) The guide now focuses on: - The key insight: no code changes needed - Bash commands to copy/paste - What to check when things break - Cost comparison in simple table Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Replace explanatory prose with concise, imperative statements throughout. Consolidate multi-sentence sections into single direct statements. Convert verbose subsections to bullet format. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Remove generic Deploy step, merge validation with troubleshooting, and reposition firewall configuration as a pre-deployment step for clearer sequencing. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Add Okta SSO firewall rules (*.okta.com, *.oktapreview.com) - Update "Azure SSO" to "Microsoft Entra SSO" (current branding) - Clarify Step 3 focuses on deployment with TGW-specific parameters only - Remove non-TGW parameters (DBUser, DBPassword, etc.) from example - Improve parameter comments to explain purpose of each subnet type - Add context that validation must run from within VPC - Clarify VPC endpoint DNS should resolve to private IPs Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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it doesn't look like there is much difference between NAT GW and TGW for our deployments
generally I think it should be integrated into installation docs
| ## Prerequisites | ||
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| - VPC with Transit Gateway attachment (TGW routes to internet) | ||
| - Quilt deployment configured with `network.vpn: true` (sets `existing_vpc: true`) |
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that doesn't look like something customer is aware of
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I mean network.vpn: true, existing_vpc: true
| - Quilt deployment configured with `network.vpn: true` (sets `existing_vpc: true`) | ||
| - AWS networking knowledge (VPC, subnets, route tables, security groups) | ||
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| ### Subnet Requirements |
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doesn't seem strictly related to TGW
| ## Step 1: Deploy VPC Endpoints (Strongly Recommended) | ||
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| Configuring these essential endpoints costs ~$35/month, but can reduce TGW charges by 90%+. |
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doesn't seem strictly related to TGW (e.g. can save money with NAT as well)
Configuring these essential endpoints costs ~$35/month, but can reduce TGW charges by 90%+.
sounds quite speculative
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shouldn't that belong to meta?
having customer emails in the public repo seems like especially bad idea
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| ## Step 1: Deploy VPC Endpoints (Strongly Recommended) |
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why do we exactly recommend this?
| Configuring these essential endpoints costs ~$35/month, but can reduce TGW charges by 90%+. | ||
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| ```bash | ||
| VPC_ID="vpc-xxxxx" |
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I think people should and will use terraform/CloudFormation
probably we should just list services and that's it
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| ## Step 2: Configure Firewall Rules (If Applicable) |
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I'm not quite sure but I think AWS Network Firewall can used with NAT as well
| - `telemetry.quiltdata.cloud` (if telemetry enabled) | ||
| - `login.microsoftonline.com` (if Microsoft Entra SSO) | ||
| - `*.okta.com` or `*.oktapreview.com` (if Okta SSO) | ||
| - `accounts.google.com` (if Google SSO) | ||
| - `*.amazonaws.com` (if no VPC endpoints) |
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this doesn't seem like a full list (e.g. mixpanel) and I'm not sure we should say it's an exhaustive list
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So, instead do you want to simply add a section to the Install Docs where you list the relevant services, and call it a day? |
- Rename files: vir-* → customer-* - Replace company name "Vir Biotechnology" with "Customer Organization" - Replace personal names (Ashwin, etc.) with generic "Customer Contact" - Replace email addresses (@vir.bio) with @customer.com - Update all references to "Vir" throughout documentation to "customer" Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
| Do not click links or open attachments unless you recognize the sender and are expecting the attachment or link. | ||
| Hi Ashwin, | ||
| Thanks for the detailed note. Yes, Quilt supports integration into an existing corporate network/VPC and is designed to be private-by-default. Our current “Network 2.0” architecture places most services in private subnets and supports internal-only access via private load balancers and VPC endpoints. (See README.md and t4/template/PRIVATE_ENDPOINTS.md.) | ||
| Hi Customer Contact, |
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I'm not sure how that's important but non-anonymized commits will be preserved even after PR is merged
so if it matters you have do to some git/GitHub magic for hard delete
yes |
2 participants
Summary
Adds comprehensive documentation for deploying Quilt with AWS Transit Gateway routing instead of NAT Gateway, based on customer request analysis.
New Documentation
Customer Analysis (
custom-gateway/)Public Documentation
howto-2-network-1.0-migration.mdKey Insights
✅ Zero code changes required - Works with existing
existing_vpc: trueconfiguration✅ VPC endpoints eliminate 90%+ of TGW internet traffic - Better performance and lower cost
✅ Fully private architecture possible - With proper VPC endpoint configuration
✅ Cost-effective for enterprises - TGW cost is shared across organization
Technical Highlights
Testing
All bash scripts have been formatted and validated for:
Related
Companion guide to:
Both guides use consistent format with tags, summary, bash automation, and validation appendices.
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