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func ip2int(ip net.IP) uint32 { | |
if len(ip) == 16 { | |
return binary.BigEndian.Uint32(ip[12:16]) | |
} | |
return binary.BigEndian.Uint32(ip) | |
} | |
func int2ip(nn uint32) net.IP { | |
ip := make(net.IP, 4) | |
binary.BigEndian.PutUint32(ip, nn) |
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get_latest_release() { | |
curl --silent "https://api.github.com/repos/$1/releases/latest" | # Get latest release from GitHub api | |
grep '"tag_name":' | # Get tag line | |
sed -E 's/.*"([^"]+)".*/\1/' # Pluck JSON value | |
} | |
# Usage | |
# $ get_latest_release "creationix/nvm" | |
# v0.31.4 |
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# -*- mode: ruby -*- | |
# vi: set ft=ruby : | |
# This script to install Kubernetes will get executed after we have provisioned the box | |
$script = <<-SCRIPT | |
# Install kubernetes | |
apt-get update && apt-get install -y apt-transport-https | |
curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | apt-key add - | |
cat <<EOF >/etc/apt/sources.list.d/kubernetes.list |