cleanstart/stunnel repository overview

Verified STUNNEL Container Image

A hardened, minimal STUNNEL container image built from source with verifiable software provenance and an SBOM, designed for secure production deployments.

For additional versions including FIPS support, explore CleanStart Images — secure, hardened container images⁠

Pull Latest Image Download the container image from the registry

docker pull cleanstart/stunnel:latest

docker pull cleanstart/stunnel:latest-dev

Basic Run Run the container with basic configuration

docker run -d --name stunnel \
  -v $(pwd)/stunnel.conf:/etc/stunnel/stunnel.conf \
  -p 8443:443 \
  cleanstart/stunnel:latest

Production Deployment Deploy with production security settings

  docker run -d --name stunnel-dev \
  --read-only \
  --security-opt=no-new-privileges \
  --user 1000:1000 \
  -v $(pwd):/etc/stunnel:ro \
  -p 8443:443 \
  cleanstart/stunnel:latest-dev

Volume Mount Mount configuration and certificate files

  docker run -v $(pwd):/etc/stunnel:ro \
  cleanstart/stunnel:latest

Port Forwarding Run with custom port mappings

docker run -p 8443:443 cleanstart/stunnel:latest

Why Use CleanStart Images⁠

• Verified — Built from source with verifiable software provenance
• Hardened — Minimal software footprint designed for secure deployment
• Transparent — SBOM available for visibility into image contents
• Production-ready — Built for modern container environments