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This PR adds DNS configuration support to the LibreChat Helm chart, enabling users to redirect traffic to proxy servers or use custom DNS settings.
## What's Changed
- Added dnsPolicy and dnsConfig fields to deployment.yaml template
- Added DNS configuration options to values.yaml with comprehensive examples
- Created documentation and example configurations
## Use Cases
- Redirect AI service traffic (AWS Bedrock, OpenAI, etc.) to proxy servers
- Use corporate DNS servers for name resolution
- Control traffic routing through custom DNS configurations
- Enforce traffic through security gateways
## Configuration Example
```yaml
dnsPolicy: "None"
dnsConfig:
nameservers:
- "10.0.0.10" # Custom DNS server for redirections
searches:
- "svc.cluster.local"
options:
- name: ndots
value: "2"
```
## Testing Results
✅ Successfully tested with Docker Compose environment
✅ DNS resolution correctly redirects to configured IPs
✅ HTTP requests properly routed to proxy servers
✅ Tested with multiple domains (AWS Bedrock, OpenAI, SageMaker)
Test output:
- bedrock-runtime.us-east-1.amazonaws.com -> 172.25.0.10 ✓
- api.openai.com -> 172.25.0.10 ✓
- sagemaker-runtime.us-east-1.amazonaws.com -> 172.25.0.10 ✓
All DNS redirects working correctly with proxy server receiving traffic.
## Documentation
- Added comprehensive DNS_CONFIGURATION.md guide
- Included examples for common use cases
- Provided troubleshooting steps
## Backward Compatibility
This change is fully backward compatible. If dnsPolicy and dnsConfig are not specified, the default Kubernetes DNS behavior is maintained.
Fixes #[issue_number]
Co-authored-by: LibreChat User <user@example.com>
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1.2 KiB
YAML
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1.2 KiB
YAML
# DNS Configuration Examples for LibreChat Helm Chart
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# This file demonstrates how to configure custom DNS settings for traffic redirection
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# Example 1: Redirect AWS Bedrock traffic to a proxy server
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dnsPolicy: "None" # Ignore cluster DNS, use only custom DNS
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dnsConfig:
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nameservers:
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- "10.0.0.10" # Your custom DNS server that handles redirections
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- "8.8.8.8" # Fallback to Google DNS for other domains
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searches:
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- "svc.cluster.local"
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- "cluster.local"
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options:
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- name: ndots
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value: "2"
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---
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# Example 2: Use corporate DNS server
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dnsPolicy: "None"
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dnsConfig:
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nameservers:
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- "192.168.1.53" # Corporate DNS server
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- "192.168.1.54" # Backup DNS server
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---
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# Example 3: Combine with hostAliases for simple redirects
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dnsPolicy: "ClusterFirst" # Use cluster DNS first
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dnsConfig:
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options:
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- name: timeout
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value: "1"
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- name: attempts
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value: "2"
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# Note: For simple host-to-IP mappings, you can also use hostAliases
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# in combination with DNS configuration (add this to deployment spec):
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# hostAliases:
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# - ip: "10.100.50.200"
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# hostnames:
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# - "bedrock-runtime.us-east-1.amazonaws.com"
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# - "api.openai.com" |