SingularityCE 4.0.0 Release Candidate 2

SingularityCE 4.0.0-rc.2 is a release candidate for the upcoming 4.0.0 release, with the changes detailed below relative to 4.0.0-rc.1.

See the 4.0.0-rc.1 release notes for a full changelog.

OCI-mode

• If system does not meet the requirements for using OCI-SIF, OCI mode will fall back to a filesystem-based strategy: the OCI container will be unpacked into a temporary sandbox dir and run from there.

New Features & Functionality

• Execution flows that unpack an image into a temporary sandbox dir can now be disabled, by setting "tmp sandbox = no" in singularity.conf or by passing --no-tmp-sandbox to the relevant run / shell / exec command.

Bug Fixes

• Improved help text for compile and install subcommands of plugin command. Thanks to tonghuaroot (https://github.com/tonghuaroot) for the suggested improvements.
• Fix compilation with the mconfig -b option (custom builddir).

Thanks / Reporting Bugs

Thanks to our contributors for code, feedback and, testing efforts!

As always, please report any bugs to: https://github.com/sylabs/singularity/issues/new

If you think that you've discovered a security vulnerability please report it to: security@sylabs.io

Have fun!

Downloads

Source Code

Please use the singularity-ce-4.0.0-rc.2.tar.gz download below to obtain and install SingularityCE 4.0.0-rc.2. The GitHub auto-generated 'Source Code' downloads do not include required dependencies etc.

Packages

RPM / DEB packages are provided for:

• Ubuntu 20.04 (focal)
• Ubuntu 22.04 (jammy)
• RHEL/CentOS 7 (el7)
• RHEL/CentOS/AlmaLinux/Rocky 8 (el8)
• RHEL/CentOS/AlmaLinux/Rocky 9 (el9)

These packages were built with Go 1.21.0