skopeo
may already be packaged in your distribution.
sudo dnf -y install skopeo
sudo dnf -y install skopeo
Newer Skopeo releases may be available on the repositories provided by the Kubic project. Beware, these may not be suitable for production environments.
on CentOS 8:
sudo dnf -y module disable container-tools
sudo dnf -y install 'dnf-command(copr)'
sudo dnf -y copr enable rhcontainerbot/container-selinux
sudo curl -L -o /etc/yum.repos.d/devel:kubic:libcontainers:stable.repo https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/CentOS_8/devel:kubic:libcontainers:stable.repo
sudo dnf -y install skopeo
on CentOS 8 Stream:
sudo dnf -y module disable container-tools
sudo dnf -y install 'dnf-command(copr)'
sudo dnf -y copr enable rhcontainerbot/container-selinux
sudo curl -L -o /etc/yum.repos.d/devel:kubic:libcontainers:stable.repo https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/CentOS_8_Stream/devel:kubic:libcontainers:stable.repo
sudo dnf -y install skopeo
sudo yum -y install skopeo
sudo zypper install skopeo
sudo apk add skopeo
brew install skopeo
$ nix-env -i skopeo
The skopeo package is available in the Bullseye (testing) branch, which will be the next stable release (Debian 11) as well as Debian Unstable/Sid.
# Debian Testing/Bullseye or Unstable/Sid
sudo apt-get update
sudo apt-get -y install skopeo
Raspberry Pi OS uses the standard Debian's repositories, so it is fully compatible with Debian's arm64 repository. You can simply follow the steps for Debian to install Skopeo.
The skopeo package is available in the official repositories for Ubuntu 20.10 and newer.
# Ubuntu 20.10 and newer
sudo apt-get -y update
sudo apt-get -y install skopeo
If you would prefer newer (though not as well-tested) packages,
the Kubic project
provides packages for active Ubuntu releases 20.04 and newer (it should also work with direct derivatives like Pop!_OS).
Checkout the Kubic project page
for a list of supported Ubuntu version and
architecture combinations. NOTE: The command sudo apt-get -y upgrade
maybe required in some cases if Skopeo cannot be installed without it.
The build sources for the Kubic packages can be found here.
CAUTION: On Ubuntu 20.10 and newer, we highly recommend you use Buildah, Podman and Skopeo ONLY from EITHER the Kubic repo OR the official Ubuntu repos. Mixing and matching may lead to unpredictable situations including installation conflicts.
. /etc/os-release
echo "deb https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/xUbuntu_${VERSION_ID}/ /" | sudo tee /etc/apt/sources.list.d/devel:kubic:libcontainers:stable.list
curl -L https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/xUbuntu_${VERSION_ID}/Release.key | sudo apt-key add -
sudo apt-get update
sudo apt-get -y upgrade
sudo apt-get -y install skopeo
Otherwise, read on for building and installing it from source:
To build the skopeo
binary you need at least Go 1.12.
There are two ways to build skopeo: in a container, or locally without a container. Choose the one which better matches your needs and environment.
Building without a container requires a bit more manual work and setup in your environment, but it is more flexible:
- It should work in more environments (e.g. for native macOS builds)
- It does not require root privileges (after dependencies are installed)
- It is faster, therefore more convenient for developing
skopeo
.
Install the necessary dependencies:
# Fedora:
sudo dnf install gpgme-devel libassuan-devel btrfs-progs-devel device-mapper-devel
# Ubuntu (`libbtrfs-dev` requires Ubuntu 18.10 and above):
sudo apt install libgpgme-dev libassuan-dev libbtrfs-dev libdevmapper-dev
# macOS:
brew install gpgme
# openSUSE:
sudo zypper install libgpgme-devel device-mapper-devel libbtrfs-devel glib2-devel
Make sure to clone this repository in your GOPATH
- otherwise compilation fails.
git clone https://github.com/containers/skopeo $GOPATH/src/github.com/containers/skopeo
cd $GOPATH/src/github.com/containers/skopeo && make bin/skopeo
By default the make
command (make all) will build bin/skopeo and the documentation locally.
To build the manual you will need go-md2man.
# Debian:
sudo apt-get install go-md2man
# Fedora:
sudo dnf install go-md2man
Then
make docs
Building in a container is simpler, but more restrictive:
- It requires the
podman
command and the ability to run Linux containers. - The created executable is a Linux executable, and depends on dynamic libraries which may only be available only in a container of a similar Linux distribution.
$ make binary
Finally, after the binary and documentation is built:
sudo make install