feat(images): add base image with CI/CD workflow #5
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Add the default base image for Headjack that provides a complete development environment for CLI-based coding agents. Dockerfile includes: - Ubuntu 24.04 LTS with systemd enabled - Docker CE with iptables-legacy workaround (ADR-002) - Agent CLIs: Claude Code, Gemini CLI, Codex CLI - Version managers: pyenv, nodenv, goenv, rustup - Common tooling: git, gh, ripgrep, fd-find, jq, yq, etc. - Multi-architecture support (amd64, arm64) GitHub Actions workflow: - Uses WarpBuild runners and Docker Builders for fast multi-arch builds - Validates image builds on PR changes - Publishes :latest on merge to master - Publishes versioned tags on release 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Current behavior: N/A - new feature New behavior: Provides a complete development environment Docker image for CLI-based coding agents with Ubuntu 24.04, Docker CE, agent CLIs (Claude Code, Gemini CLI, Codex CLI), version managers (pyenv, nodenv, goenv, rustup), and common development tooling. Includes GitHub Actions workflow with multi-architecture builds, security scanning, SBOM generation, and image signing with Cosign. Closes: #5
This was referenced Jan 3, 2026
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Summary
images/base/Dockerfile).github/workflows/base-image.yml)The base image provides a complete development environment for CLI-based coding agents, as specified in
docs/designs/base-image.md.Base Image Components
linux/amd64,linux/arm64CI/CD Workflow
Uses WarpBuild runners and Docker Builders for fast, native multi-architecture builds (no QEMU emulation).
images/base/**:latestRegistry:
ghcr.io/${{ github.repository_owner }}/baseTest plan
:latesttag is published to GHCR with both architectures🤖 Generated with Claude Code