Status: Beta
umoci modifies Open Container images. Not a great name, but what are you going to do. It also is a cool way for people to "dip their toe" into OCI images ("umoci" also means "to dip" in Serbian).
umoci intends to be a complete manipulation tool for OCI images.
In particular, it should be seen as a more end-user-focused version of the
oci-image-tools provided by the OCI. The hope is that all
of this tooling will eventually be merged with the upstream repository, so that
it is always kept up-to-date by the Open Container Initiative community.
However, currently there is a lot of discussion
about the new tooling going into the OCI image tools, and right now I need
tooling that can abstract all of the internals of the OCI specification into a
single CLI interface. The main purpose of this tool is to serve as example of
what I would like to see in an oci-image tool.
If you wish to provide feedback or contribute, read the
CONTRIBUTING.md for this project to refresh your knowledge
about how to submit good bug reports and patches. Information about how to
submit responsible security disclosures is also provided.
We regularly publish new releases, with each release being given a unique identifying version number (as governed by Semantic Versioning (SemVer)). Information about previous releases including the list of new features, bug fixes and resolved security issues is available in the change log. You can get pre-built binaries and corresponding source code for each release from the releases page.
If you wish to build umoci from source, follow these steps to build in with
golang.
GOPATH=$HOME
go get -d github.com/openSUSE/umoci
cd $GOPATH/github.com/openSUSE/umoci
make installYour umoci binary will be in $HOME/bin.
umoci has a subcommand-based command-line. For more detailed information, see
the generated man pages (which you can build with make doc). You can also
read through our quick start guide.
% umoci --help
NAME:
umoci - umoci modifies Open Container images
USAGE:
umoci [global options] command [command options] [arguments...]
VERSION:
0.3.1
AUTHOR(S):
Aleksa Sarai <[email protected]>
COMMANDS:
raw advanced internal image tooling
help, h Shows a list of commands or help for one command
image:
config modifies the image configuration of an OCI image
unpack unpacks a reference into an OCI runtime bundle
repack repacks an OCI runtime bundle into a reference
new creates a blank tagged OCI image
tag creates a new tag in an OCI image
remove, rm removes a tag from an OCI image
stat displays status information of an image manifest
layout:
gc garbage-collects an OCI image's blobs
init create a new OCI layout
list, ls lists the set of tags in an OCI image
GLOBAL OPTIONS:
--verbose alias for --log=info
--log value set the log level (debug, info, [warn], error, fatal) (default: "warn")
--help, -h show help
--version, -v print the version
Currently umoci relies on several from-scratch implementations of existing
PRs against upstream projects (or aliased vendor projects that include PRs
merged that are not merged upstream). This is because currently upstream
projects are simply not mature enough to be used. However, this is something
that I'm working on fixing.
umoci is licensed under the terms of the Apache 2.0 license.
umoci: Umoci Modifies Open Containers' Images
Copyright (C) 2016, 2017 SUSE LLC.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
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