📖 Add SSL certificate management guide to CLAUDE.md

- Document complete process for handling internal/corporate SSL certificates
- Explain CA bundle extraction and configuration methods
- Provide environment variable setup for multiple tools
- Include best practices for SSL certificate management
- Reusable guide for other projects with custom CAs

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

CLAUDE.md

@@ -25,3 +25,75 @@ Nomad MCP is a service that enables management of HashiCorp Nomad jobs via REST
 - `/tests`: Test files
 
 Always maintain backward compatibility with existing API endpoints. Follow REST principles.
+
+## SSL Certificate Management for Internal Services
+
+When working with internal/corporate services that use custom Certificate Authorities (CAs):
+
+### Problem
+- Internal services use SSL certificates signed by custom/corporate CAs
+- System trust stores don't recognize these CAs
+- Results in `SSL: CERTIFICATE_VERIFY_FAILED` errors
+
+### Solution: Extract and Configure CA Bundle
+
+1. **Extract CA Certificate Chain**:
+   ```bash
+   # Find the CA issuer from certificate details
+   openssl s_client -connect your-service.internal:443 -showcerts
+   
+   # Download CA certificate (adjust URL for your PKI)
+   curl -k "https://vault.internal:8200/v1/pki/ca" -o certs/ca_bundle.pem
+   ```
+
+2. **Test CA Bundle**:
+   ```bash
+   # Test with curl
+   curl --cacert certs/ca_bundle.pem https://your-service.internal
+   
+   # Test with Python
+   python -c "import requests; print(requests.get('https://your-service.internal', verify='certs/ca_bundle.pem').status_code)"
+   ```
+
+3. **Create Environment Configuration**:
+   ```bash
+   # .env.ssl
+   export SSL_CERT_FILE="$(pwd)/certs/ca_bundle.pem"
+   export REQUESTS_CA_BUNDLE="$(pwd)/certs/ca_bundle.pem"
+   export CURL_CA_BUNDLE="$(pwd)/certs/ca_bundle.pem"
+   export GIT_SSL_CAINFO="$(pwd)/certs/ca_bundle.pem"
+   ```
+
+4. **Usage**:
+   ```bash
+   # Load SSL configuration
+   source .env.ssl
+   
+   # Now all tools use the CA bundle automatically
+   curl https://your-service.internal
+   git clone https://git.internal/repo.git
+   pip install -i https://pypi.internal/simple/ package
+   ```
+
+### For Different Tools
+
+- **Curl**: `curl --cacert path/to/ca_bundle.pem`
+- **Python requests**: `requests.get(url, verify='path/to/ca_bundle.pem')`
+- **Git**: `git config http.sslCAInfo path/to/ca_bundle.pem`
+- **Node.js**: `NODE_EXTRA_CA_CERTS=path/to/ca_bundle.pem`
+- **Docker**: Mount certs and set `SSL_CERT_FILE` environment variable
+
+### Environment Variables Priority
+1. `SSL_CERT_FILE` - Used by most SSL libraries
+2. `REQUESTS_CA_BUNDLE` - Python requests library
+3. `CURL_CA_BUNDLE` - curl command
+4. Tool-specific variables (e.g., `GIT_SSL_CAINFO`)
+
+### Best Practices
+- **Keep CA bundle in version control** (it's public key material)
+- **Test SSL connections** with a script to verify setup
+- **Document certificate renewal process** in project README
+- **Use environment variables** for consistent configuration across tools
+- **Never disable SSL verification** in production code
+
+This approach provides proper SSL security while working with internal services.