On macOS, you can install kustomize with Homebrew package manager:
brew install kustomize
For all operating systems, download a binary from the release page.
Or try this to grab the latest official release using the command line:
opsys=linux # or darwin, or windows
curl -s https://api.github.com/repos/kubernetes-sigs/kustomize/releases/latest |\
grep browser_download |\
grep $opsys |\
cut -d '"' -f 4 |\
xargs curl -O -L
mv kustomize_*_${opsys}_amd64 kustomize
chmod u+x kustomize
To install from head with Go v1.10.1 or higher:
go get sigs.k8s.io/kustomize