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UCL-RITS
Install Request: Singularity/Apptainer MRSR
Application: Singularity v3.8 and/or Apptainer (most recent stable release)
Link: Singularity v3.8 https://apptainer.org/admin-docs/3.8/ Apptainer mrsr https://apptainer.org/docs/admin/latest/
Cluster: Myriad
Description: Singularity is a container platform for HPC clusters. Apptainer is the continuation of Singularity under a new name.
License: mostly LBNL
Special versions or variants: The request was not specific about what version they need, just a later version than Singularity v3.5 which we have installed. Singularity v3.8 is the last version under the name "Singularity". If possible I recommend that we install Apptainer, since it is currently being maintained.
Ticket number: IN06189958
Apptainer is able to run Docker containers without converting them first, unlike earlier versions of Singularity so updating is a benefit.
This change requires an update to the system image on the clusters, so needs involvement from the Infrastructure team.
(In theory you can install Apptainer as a user but we haven't got that working).
Will need user comms in advance of change in case any existing container workflows break.
Not yet, we've been doing some testing and planning. There'll be an email to the mailing lists soonish with dates once those are confirmed. (There are other outages to schedule that we might try and do this at the same time as).