script to download latest OpenShift development version CLI tools

grab-dev-tools.sh

#!/bin/bash
TARGETDIR=~/bin
VERSION=latest-4.8
URL="https://mirror.openshift.com/pub/openshift-v4/clients/ocp-dev-preview/${VERSION}"
pullsecret_file=~/openshift_pull.json

update_tool () {
    TOOL=${1:-openshift-install}
    curl -sLO ${URL}/${TOOL}-linux.tar.gz
    tar xf ${TOOL}-linux.tar.gz
    rm README.md ${TOOL}-linux.tar.gz
}

TMPDIR=$(mktemp -d)
pushd $TMPDIR

update_tool openshift-install
update_tool openshift-client

export RELEASE_IMAGE=$(curl -s ${URL}/release.txt | grep 'Pull From: quay.io' | awk -F ' ' '{print $3}')

./oc adm release extract --registry-config "${pullsecret_file}" \
                         --command=openshift-baremetal-install \
                         --to "${TMPDIR}" ${RELEASE_IMAGE}

mv ${TMPDIR}/{oc,openshift-install,kubectl,openshift-baremetal-install} $TARGETDIR

${TARGETDIR}/openshift-install version
${TARGETDIR}/oc version

popd
rmdir $TMPDIR