acbuild - another container build tool
acbuild is a command line utility to build and modify container images.
It is intended to provide an image build workflow independent of specific formats; currently, it can output the following types of container images:
- ACI, the container image format defined in the App Container (appc) spec.
- OCI, the format defined in the Open Containers Image Format specification
We needed a powerful tool for constructing and manipulating container images
that made it easy to iteratively build containers, both from scratch and atop
existing images. We wanted that tool to integrate well with Unix mechanisms
like the shell and
Makefiles so it would fit seamlessly into well-known
administrator and developer workflows.
acbuild can only be run on a Linux system, and has only been tested on the amd64 architecture.
For trying out acbuild on Mac OS X, it's recommended to use Vagrant. Instructions on how to do this are a little further down in this document.
acbuild requires a handful of commands be available on the system on which it's run:
systemd-nspawn is required to use the default
engine for acbuild run. Thus on Ubuntu the
systemd-container package needs to be installed.
The easiest way to get
acbuild is to download one of the
releases from GitHub.
Build from source
The other way to get
acbuild is to build it from source. Building from source requires Go 1.5+.
Follow these steps to do so:
Grab the source code for
git cloneing the source repository:
cd ~ git clone https://github.com/containers/build acbuild
buildscript from the root source repository directory:
cd acbuild ./build
Or, if you want to build in docker (assuming
$PWDexists and contains
acbuild/on your Docker host):
cd acbuild ./build-docker
bin/directory will be created that contains the
acbuildtool. To make sure your shell can find this executable, append this directory to your environment's
$PATHvariable. You can do this in your
.bashrcor similar file, for example:
and put the following lines at the end of the file:
export ACBUILD_BIN_DIR=~/acbuild/bin export PATH=$PATH:$ACBUILD_BIN_DIR
Trying out acbuild using Vagrant
For users with Vagrant 1.5.x or greater, there's a provided
can quickly get you set up with a Linux VM that has both acbuild and rkt. The
following steps will grab acbuild, set up the machine, and ssh into it.
git clone https://github.com/containers/build acbuild cd acbuild vagrant up vagrant ssh
Documentation about acbuild and many of its commands is available in the
directory in this
Check out the
directory for some common
applications being packaged into ACIs with