Install containerd and nerdctl on Ubuntu

install.sh

# adapted from https://github.com/ArmDeveloperEcosystem/arm-learning-paths/blob/main/content/install-guides/nerdctl.md
# modified for amd64

CONTAINERD_VERSION=$(curl -s https://api.github.com/repos/containerd/containerd/releases/latest | grep tag_name | cut -d '"' -f 4 | sed 's/v//')
wget https://github.com/containerd/containerd/releases/download/v${CONTAINERD_VERSION}/containerd-${CONTAINERD_VERSION}-linux-amd64.tar.gz
sudo tar Cxzvf /usr/local containerd-${CONTAINERD_VERSION}-linux-amd64.tar.gz
rm containerd-${CONTAINERD_VERSION}-linux-amd64.tar.gz
wget https://raw.githubusercontent.com/containerd/containerd/main/containerd.service
mv containerd.service /usr/local/lib/systemd/system/containerd.service
sudo systemctl daemon-reload
sudo systemctl enable --now containerd

RUNC_VERSION=$(curl -s https://api.github.com/repos/opencontainers/runc/releases/latest | grep tag_name | cut -d '"' -f 4 | sed 's/v//')
wget https://github.com/opencontainers/runc/releases/download/v${RUNC_VERSION}/runc.amd64
sudo install -m 755 runc.amd64 /usr/local/sbin/runc

NERDCTL_VERSION=$(curl -s https://api.github.com/repos/containerd/nerdctl/releases/latest | grep tag_name | cut -d '"' -f 4 | sed 's/v//')
wget https://github.com/containerd/nerdctl/releases/download/v${NERDCTL_VERSION}/nerdctl-${NERDCTL_VERSION}-linux-amd64.tar.gz
sudo tar -xzvf nerdctl-${NERDCTL_VERSION}-linux-amd64.tar.gz -C /usr/local/bin
rm nerdctl-${NERDCTL_VERSION}-linux-amd64.tar.gz

CNI_VERSION=$(curl -s https://api.github.com/repos/containernetworking/plugins/releases/latest | grep tag_name | cut -d '"' -f 4 | sed 's/v//')
wget https://github.com/containernetworking/plugins/releases/download/v${CNI_VERSION}/cni-plugins-linux-amd64-v${CNI_VERSION}.tgz
sudo mkdir -p /opt/cni/bin
sudo tar -xzvf cni-plugins-linux-amd64-v${CNI_VERSION}.tgz -C /opt/cni/bin
rm cni-plugins-linux-amd64-v${CNI_VERSION}.tgz

# https://github.com/moby/buildkit for building images
BUILDKIT_VERSION=$(curl -s https://api.github.com/repos/moby/buildkit/releases/latest | grep tag_name | cut -d '"' -f 4 | sed 's/v//')
wget https://github.com/moby/buildkit/releases/download/v${BUILDKIT_VERSION}/buildkit-v${BUILDKIT_VERSION}.linux-amd64.tar.gz
sudo tar -xzvf buildkit-v${BUILDKIT_VERSION}.linux-amd64.tar.gz -C /usr
rm buildkit-v${BUILDKIT_VERSION}.linux-amd64.tar.gz