NAME

       umoci raw unpack - Unpacks an OCI image tag into a root filesystem

SYNOPSIS

       umoci raw unpack [umoci-unpack(1) flags] rootfs

DESCRIPTION

       Extracts  all  of the layers (deterministically) to a root filesystem at path rootfs. This
       path must not already exist.

OPTIONS

       The global options are  defined  in  umoci(1),  while  the  options  for  this  particular
       subcommand  are  identical  to  umoci-unpack(1) with the exception that the rootfs path is
       provided rather than a bundle path.

EXAMPLE

       The following downloads an image from a docker(1) registry using skopeo(1),  unpacks  said
       image  to  a  root filesystem, generates an OCI runtime configuration file with umoci-raw-
       runtime-config(1) and then creates a new container with runc(8).

              % skopeo copy docker://opensuse/amd64:42.2 oci:image:latest
              # umoci raw unpack --image image rootfs
              # umoci raw runtime-config --image image --rootfs rootfs config.json
              # runc run ctr
              [ container session ]

       With --rootless it is also possible to do the above example without root privileges. umoci
       will generate a configuration that works with rootless containers in runc(8).

              % skopeo copy docker://opensuse/amd64:42.2 oci:image:latest
              % umoci raw unpack --image image --rootless rootfs
              % umoci raw runtime-config --image image --rootfs rootfs --rootless config.json
              % runc --root $HOME/runc run ctr
              [ rootless container session ]

SEE ALSO

       umoci(1), umoci-raw-runtime-config(1), runc(8)