Changes/Podman5

Podman 5

Summary

Ship Podman 5 in Fedora 40.

Owner

• Name: Lokesh Mandvekar, Mohan Boddu

Current status

• Targeted release: Fedora Linux 40
• Last updated: 2024-01-17
• Announced
• Discussion thread
• FESCo issue: #3126
• Tracker bug: #2258071
• Release notes tracker: <will be assigned by the Wrangler>

Benefit to Fedora

Podman 5 will:

• No longer support cgroups v1
• Deprecate CNI plugins
• Deprecate Boltdb
• Have passt as the default rootless network service instead of slirp4netns
• Support stable --format Go template structs
• Isolate podman bindings leading to improved usability
• Allow better handling of containers.conf

Scope

• Proposal owners:

• Other developers:

• Release engineering: #Releng issue number

• Policies and guidelines: N/A (not needed for this Change)

• Trademark approval: N/A (not needed for this Change)

• Alignment with Community Initiatives:

Upgrade/compatibility impact

Podman 5 will come with breaking changes affecting upgradability:

• CGroups v1 environments will be required to switch to CGroups v2
• CNI plugin environemnts will need to switch to netavark
• Changes in --format Go template structs

How To Test

Probably best handled in a Podman Test Day aligned with Fedora 40 Test Days.

• Install Fedora 40
• Install Podman 5
• Run test cases / suite (TBD)

User Experience

Podman 5 will provide better usability of Podman bindings, easier to maintain containers.conf and other configuration files along with database performance improvements and CLI enhancements.

Dependencies

Projects / Packages likely to be affected:

• Cockpit
• CoreOS
• Toolbox
• Silverblue / Kinoite
• Podman Desktop

Contingency Plan

• Contingency mechanism: (What to do? Who will do it?) N/A (not a System Wide Change)
• Contingency deadline: N/A (not a System Wide Change)
• Blocks release? N/A (not a System Wide Change), Yes/No

Documentation

N/A (not a System Wide Change)