download.sh

#!/bin/sh

# Donwload latest Istio release and replace istioctl command to the latest

set -x
set -e

LATEST_COMMIT=$(curl https://storage.googleapis.com/istio-build/dev/latest)
ISTIO_RELEASE=istio-${LATEST_COMMIT}
URL="https://gcsweb.istio.io/gcs/istio-build/dev/${LATEST_COMMIT}/${ISTIO_RELEASE}-linux-amd64.tar.gz"
TEMP_DIR=$(mktemp -d)
WORKSPACE="$HOME/workspace/istio-dev-release"
trap 'rm -r ${TEMP_DIR}' EXIT

rm -rf ${WORKSPACE}/*
wget -qO- ${URL} | tar -xvz -C ${TEMP_DIR}
mv ${TEMP_DIR}/${ISTIO_RELEASE}/* ${WORKSPACE}/