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Epic
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Resolution: Done
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Normal
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None
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None
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Dev preview of Crun in openshift
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True
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This epic was automatically marked as blocked because the resolution for a subtask has been set to Won't Do (or Won't Fix), indicating a functional team cannot support this epic.
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False
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Green
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To Do
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Impediment
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0% To Do, 0% In Progress, 100% Done
OCP/Telco Definition of Done
Epic Template descriptions and documentation.
<--- Cut-n-Paste the entire contents of this description into your new Epic --->
Epic Goal
- ...
Why is this important?
- While most of the tools used in the Linux containers ecosystem are written in Go, I believe C is a better fit for a lower level tool like a container runtime. runc, the most used implementation of the OCI runtime specs written in Go, re-execs itself and use a module written in C for setting up the environment before the container process starts.
crun aims to be also usable as a library that can be easily included in programs without requiring an external process for managing OCI containers.
- crun is faster than runc and has a much lower memory footprint.
This is the elapsed time on my machine for running sequentially 100 containers, the containers run /bin/true:
crun | runc | % | |
---|---|---|---|
100 /bin/true | 0:01.69 | 0:3.34 | -49.4% |
https://github.com/containers/crun
Scenarios
- ...
Acceptance Criteria
- CI - MUST be running successfully with tests automated
- Release Technical Enablement - Provide necessary release enablement details and documents.
- ...
Dependencies (internal and external)
- ...
Previous Work (Optional):
- …
Open questions::
- …
Done Checklist
- CI - CI is running, tests are automated and merged.
- Release Enablement <link to Feature Enablement Presentation>
- DEV - Upstream code and tests merged: <link to meaningful PR or GitHub Issue>
- DEV - Upstream documentation merged: <link to meaningful PR or GitHub Issue>
- DEV - Downstream build attached to advisory: <link to errata>
- QE - Test plans in Polarion: <link or reference to Polarion>
- QE - Automated tests merged: <link or reference to automated tests>
- DOC - Downstream documentation merged: <link to meaningful PR>
- is cloned by
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OCPNODE-1014 Tech preview of Crun in openshift
- Closed
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