SSL Certificates

For self-hosted GitLab instances with self-signed or internal CA certificates, Auto Merge supports custom CA trust.

Base64 (recommended for Docker/Kubernetes)

Encode your CA certificate and pass it as an environment variable:

# Generate Base64
cat /path/to/ca.crt | base64 -w0

Set CA_CERT_BASE64 with the output:

environment:
  - CA_CERT_BASE64=LS0tLS1CRUdJTi...

File Mount

Mount the certificate file into the container:

volumes:
  - /path/to/ca.crt:/certs/ca.crt:ro
environment:
  - CA_CERT_PATH=/certs/ca.crt

Notes

• Certificate must be PEM format
• CA_CERT_BASE64 takes precedence over CA_CERT_PATH
• The custom CA is trusted in addition to system default CAs
• Hostname verification remains enabled