Solution Brief

Apptainer

Verifiable “Buckets” with Just Enough Bits

For decades, there has been no sharing of technology between enterprise and HPC, but containers change that completely! High Performance Computing use cases can now leverage containers directly on traditional HPC resources in a way that emphasizes the benefits of containers with the performance characteristics necessary for HPC.

Apptainer is designed to securely execute applications with bare-metal performance while being portable and 100% reproducible. An Apptainer container packages up whatever you need into a single, verifiable file. From small laboratory clusters all the way to massively-scalable HPC clusters, Apptainer can handle it.

 

Key highlights

What is covered

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Secure by Design

Apptainer delivers rootless containers, cryptographic validation, and encrypted SIF images — built for trusted HPC deployment.

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Performance at Scale

Run compute-intensive applications with near bare-metal performance, from lab clusters to massive HPC systems.

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Purpose-Built for Applications

Unlike microservice-focused containers, Apptainer is optimized for AI, ML, and data-heavy workloads across portable environments.

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100% Open Source with CIQ Expertise

Backed by the Linux Foundation and CIQ’s founding engineers, Apptainer combines community innovation with expert commercial support.

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