This is used mostly for the docker-multinode config, but also in other places where flannel runs in a container.

For amd64, this image equals to quay.io/coreos/flannel to maintain official support. For other architectures, flannel is cross-compiled. The debian-iptables image serves as base image.

# Build for linux/amd64 (default)
$ make push ARCH=amd64
# ---> gcr.io/google_containers/flannel-amd64:TAG

$ make push ARCH=arm
# ---> gcr.io/google_containers/flannel-arm:TAG

$ make push ARCH=arm64
# ---> gcr.io/google_containers/flannel-arm64:TAG

$ make push ARCH=ppc64le
# ---> gcr.io/google_containers/flannel-ppc64le:TAG

If you don't want to push the images, run make or make build instead