img
A standalone, daemon-less, unprivileged container image builder compatible with Dockerfile and OCI.
What is img?
img is a standalone, daemon-less container image builder that allows users to build Dockerfile and OCI-compatible images without requiring root privileges. It solves the problem of secure image building in environments where users lack administrative access, such as HPC clusters or academic institutions, by operating entirely as an unprivileged process.
Developers, system administrators, and researchers in environments like HPC, academia, or enterprises with strict security policies who need to build container images without root access or a Docker daemon.
Developers choose img for its security-first approach, allowing unprivileged image building while maintaining full Docker CLI compatibility. Its use of BuildKit enables superior cache efficiency and concurrent builds, offering performance benefits over traditional Docker builds.
Overview
Standalone, daemon-less, unprivileged Dockerfile and OCI compatible container image builder.
Use Cases
Best For
- Building container images in shared or locked-down environments without root access
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