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SubatomicPhysics: Difference between revisions
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→Running in containers: The ATLAS repo contains only singularity format, while unpacked repo is both Docker and Singularity formats
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=== Running in containers === | === Running in containers === | ||
As of this writing there are two main repositories for | As of this writing there are two main repositories for container images that we are aware of for HEP-related software, both distributed via CVMFS repositories. One from ATLAS and the other from WLCG. | ||
* ATLAS - The ATLAS distributions are documented well at https://twiki.cern.ch/twiki/bin/view/AtlasComputing/ADCContainersDeployment | * ATLAS - The ATLAS distributions of Singularity images are documented well at https://twiki.cern.ch/twiki/bin/view/AtlasComputing/ADCContainersDeployment | ||
- single file packed images: /cvmfs/atlas.cern.ch/repo/containers/images/singularity/<br/> | - single file packed images: /cvmfs/atlas.cern.ch/repo/containers/images/singularity/<br/> | ||
- unpacked images: /cvmfs/atlas.cern.ch/repo/containers/fs/singularity/<br/> | - unpacked images: /cvmfs/atlas.cern.ch/repo/containers/fs/singularity/<br/> | ||
* WLCG unpacked repository - This is a development project that uses [https://cvmfs.readthedocs.io/en/stable/cpt-ducc.html DUCC] to automate publishing of container images from a Docker image registry to CVMFS. The images are published to CVMFS in a standard directory structure format that is used by Singularity, as well as the layered format | * WLCG unpacked repository - This is a development project that uses [https://cvmfs.readthedocs.io/en/stable/cpt-ducc.html DUCC] to automate publishing of container images from a Docker image registry to CVMFS. The images are published to CVMFS in a standard directory structure format that is used by Singularity, as well as the layered format used by Docker, allowing Docker to instantiate images directly from CVMFS using the [https://cvmfs.readthedocs.io/en/stable/cpt-graphdriver.html graph driver] plugin. There is additional documentation for this project at https://github.com/cvmfs/ducc. The list of images that are automatically published is [https://gitlab.cern.ch/unpacked/sync/blob/master/recipe.yaml here] and includes the atlas-grid-centos7 image. To add one to the list you can submit a merge request. | ||
- Images are under /cvmfs/unpacked.cern.ch/ | - Images are under /cvmfs/unpacked.cern.ch/ | ||