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Container Images\n\nA collection of utility container images built and published nightly to GitHub Container Registry. These are lightweight, secure helper containers designed for various infrastructure and development tasks.\n\n## 🚀 Available Images\n\nAll images are available at `ghcr.io/natrontech/container-images/\u003cimage-name\u003e` with the following tags:\n\n- `:latest` - Latest stable release\n- `:nightly` - Nightly builds from main branch\n- `:sha-\u003ccommit\u003e` - Specific commit builds\n\n### Current Images\n\n- **tcp-forwarder** - A robust TCP port forwarder with health checks and logging\n\n## 🔒 Security\n\nAll container images are:\n- ✅ Signed with [Cosign](https://github.com/sigstore/cosign)\n- ✅ Built with [SLSA Level 3](https://slsa.dev/) provenance\n- ✅ Scanned for vulnerabilities\n- ✅ Generated with reproducible builds\n\n## 🏗️ Build Process\n\n### Automated Builds\n- **Nightly**: Automatically builds all containers every night at 02:00 UTC\n- **On Push**: Builds containers when changes are pushed to main branch\n- **Manual**: Can be triggered manually via GitHub Actions\n\n### Container Discovery\nThe build system automatically discovers containers by scanning for directories containing a `Dockerfile`. Each directory name becomes the container image name.\n\n## 🛠️ Adding New Container Images\n\n1. Create a new directory with your container name (e.g., `my-tool/`)\n2. Add a `Dockerfile` in that directory\n3. Optionally add any supporting scripts or files\n4. Push to main branch - the container will be automatically built and published\n\nExample structure:\n```\nmy-tool/\n├── Dockerfile\n├── entrypoint.sh\n└── healthcheck.sh\n```\n\n## 📋 Verification\n\nTo verify a container image signature:\n\n```bash\ncosign verify \\\n  --certificate-oidc-issuer https://token.actions.githubusercontent.com \\\n  --certificate-identity-regexp '^https://github.com/natrontech/container-images/.github/workflows/.*@refs/.*$' \\\n  ghcr.io/natrontech/container-images/\u003cimage-name\u003e:\u003ctag\u003e\n```\n\nTo verify SLSA provenance:\n\n```bash\ncosign verify-attestation \\\n  --type slsaprovenance \\\n  --certificate-oidc-issuer https://token.actions.githubusercontent.com \\\n  --certificate-identity-regexp '^https://github.com/slsa-framework/slsa-github-generator/.github/workflows/generator_container_slsa3.yml@refs/tags/v[0-9]+.[0-9]+.[0-9]+$' \\\n  ghcr.io/natrontech/container-images/\u003cimage-name\u003e:\u003ctag\u003e\n```\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fnatrontech%2Fcontainer-images","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fnatrontech%2Fcontainer-images","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fnatrontech%2Fcontainer-images/lists"}