NAME

       umoci - umoci modifies Open Container images

SYNOPSIS

       umoci [--help|-h] [--version|-v] [--log={debug|info|warn|error|fatal}] [--verbose] command
       [args]

DESCRIPTION

       umoci is a tool that allows for high-level modification of an OCI image layout and its
       tagged images. While umoci attempts to abstract the OCI image specification specifics, it
       is recommended that users of this tool read through the specification
       ⟨https://github.com/opencontainers/image-spec⟩ to make sure they understand the rough
       idea.

       umoci is unique in that it is, at the time of writing, the first tool to allow for
       arbitrary modification of an OCI image in a high-level fashion (where all of the different
       blobs in an OCI image are all managed by umoci when doing a high-level operation such as
       umoci-repack(1)).

GLOBAL OPTIONS

       --help, -h
         Print usage statement.

       --version, -v
         Print the version.

       --log={debug|info|warn|error|fatal}
         Set the logging level. The default is "warn".

       --verbose
         Alias for --log=info.

COMMANDS

       init
         Create a new OCI layout. See umoci-init(1) for more detailed usage
         information.

       new
         Creates a blank tagged OCI image. See umoci-new(1) for more detailed
         usage information.

       unpack
         Unpacks a tagged image into an OCI runtime bundle. See umoci-unpack(1)
         for more detailed usage information.

       repack
         Repacks an OCI runtime bundle into a tagged image. See umoci-repack(1)
         for more detailed usage information.

       config
         Modifies the image configuration of an OCI image. See umoci-config(1) for
         more detailed usage information.

       stat
         Displays status information of an image manifest. See umoci-stat(1) for
         more detailed usage information.

       tag
         Creates a new tag in an OCI image. See umoci-tag(1) for more detailed
         usage information.

       remove, rm
         Removes a tag from an OCI image. See umoci-remove(1) for more detailed
         usage information.

       list, ls
         Lists the set of tags in an OCI image. See umoci-list(1) for more
         detailed usage information.

       gc
         Garbage collects all unreferenced OCI image blobs. See umoci-gc(1) for
         more detailed usage information.

SEE ALSO

       umoci-init(1), umoci-new(1), umoci-unpack(1), umoci-repack(1), umoci-config(1),
       umoci-stat(1), umoci-tag(1), umoci-remove(1), umoci-list(1), umoci-gc(1), skopeo(1)