add scripts to install cli tools
Signed-off-by: Poor12 <shentiecheng@huawei.com>
This commit is contained in:
Poor12
parent
5c46c7caef
commit
1265b4e4b4
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@ -0,0 +1,260 @@
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#!/usr/bin/env bash
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set -o errexit
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set -o nounset
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set -o pipefail
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# This script installs karmada cli tools to the install location you want.
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# Usage: ./install-cli.sh <install_cli_type>
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# Example:
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# ./install-cli.sh
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# will install the latest karmadactl to /usr/local/bin
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# ./install-cli.sh kubectl-karmada
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# will install the latest kubectl-karmada to /usr/local/bin
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# export INSTALL_CLI_VERSION=1.3.0
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# ./install-cli.sh
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# will install the 1.3.0 karmadactl to /usr/local/bin
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# INSTALL_CLI_TYPE supports 'karmadactl' or 'kubectl-karmada'.
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INSTALL_CLI_TYPE=${1:-"karmadactl"}
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# INSTALL_CLI_VERSION represents which version should be installed.
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# Defaults to 'latest' means latest release version.
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INSTALL_CLI_VERSION=${INSTALL_CLI_VERSION:-"latest"}
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# INSTALL_LOCATION represents where to put the CLI.
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INSTALL_LOCATION=${INSTALL_LOCATION:-"/usr/local/bin"}
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GITHUB_REPO="karmada-io/karmada"
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# Helper functions for logs
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info() {
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echo '[INFO] ' "$@"
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}
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warn() {
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echo '[WARN] ' "$@" >&2
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}
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fatal() {
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echo '[ERROR] ' "$@" >&2
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exit 1
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}
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# Set os, fatal if operating system not supported
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setup_verify_os() {
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if [[ -z "${OS-}" ]]; then
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OS=$(uname)
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fi
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case ${OS} in
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Darwin)
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OS=darwin
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;;
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Linux)
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OS=linux
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;;
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*)
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fatal "Unsupported operating system ${OS}"
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esac
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}
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# Set arch, fatal if architecture not supported
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setup_verify_arch() {
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if [[ -z "${ARCH-}" ]]; then
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ARCH=$(uname -m)
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fi
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case ${ARCH} in
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arm64|aarch64|armv8l)
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ARCH=arm64
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;;
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amd64|x86_64)
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ARCH=amd64
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;;
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*)
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fatal "Unsupported architecture ${ARCH}"
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esac
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}
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# Set cli tools, install karmadactl by default, fatal if cli tool not supported
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setup_install_cli() {
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case ${INSTALL_CLI_TYPE} in
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karmadactl|kubectl-karmada)
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;;
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*)
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fatal "Unsupported cli tool ${INSTALL_CLI_TYPE}"
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esac
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}
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# Verify existence of downloader executable
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verify_downloader() {
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# Return failure if it doesn't exist or is no executable
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[[ -x "$(which "$1")" ]] || return 1
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# Set verified executable as our downloader program and return success
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DOWNLOADER=$1
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return 0
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}
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# Create tempory directory and cleanup when done
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setup_tmp() {
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TMP_DIR=$(mktemp -d -t "${INSTALL_CLI_TYPE}"-install.XXXXXXXXXX)
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TMP_METADATA="${TMP_DIR}/${INSTALL_CLI_TYPE}.json"
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TMP_HASH="${TMP_DIR}/${INSTALL_CLI_TYPE}.hash"
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TMP_BIN="${TMP_DIR}/${INSTALL_CLI_TYPE}.tgz"
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cleanup() {
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local code=$?
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rm -rf "${TMP_DIR}" || true
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exit ${code}
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}
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trap cleanup INT EXIT
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}
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# Find version from Github metadata
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get_release_version() {
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if [[ "${INSTALL_CLI_VERSION-}" != "latest" ]]; then
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SUFFIX_URL="tags/v${INSTALL_CLI_VERSION}"
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else
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SUFFIX_URL="latest"
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fi
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METADATA_URL="https://api.github.com/repos/${GITHUB_REPO}/releases/${SUFFIX_URL}"
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info "Downloading metadata ${METADATA_URL}"
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download "${TMP_METADATA}" "${METADATA_URL}"
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VERSION_KARMADA=$(grep '"tag_name":' "${TMP_METADATA}" | sed -E 's/.*"([^"]+)".*/\1/' | cut -c 2-)
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if [[ -n "${VERSION_KARMADA}" ]]; then
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info "Using ${VERSION_KARMADA} as release"
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else
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fatal "Unable to determine release version"
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fi
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ret=0
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vercomp ${VERSION_KARMADA} 1.2.0 || ret=$?
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if [[ $ret -eq 2 ]]; then
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fatal "Installation of cli tools before version 1.2.0 is not supported"
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fi
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}
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# Download from file from URL
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download() {
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[[ $# -eq 2 ]] || fatal 'download needs exactly 2 arguments'
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ret=0
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case $DOWNLOADER in
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curl)
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curl -o "$1" -sfL "$2" || ret=$?
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;;
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wget)
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wget -qO "$1" "$2" || ret=$?
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;;
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*)
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fatal "Incorrect executable '${DOWNLOADER}'"
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;;
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esac
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# Abort if download command failed
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[[ $ret -eq 0 ]] || fatal 'Download failed'
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}
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# Version comparison
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# Returns 0 on '=', 1 on '>', and 2 on '<'.
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# Ref: https://stackoverflow.com/a/4025065
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vercomp () {
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if [[ $1 == $2 ]]
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then
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return 0
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fi
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local IFS=.
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local i ver1=($1) ver2=($2)
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# fill empty fields in ver1 with zeros
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for ((i=${#ver1[@]}; i<${#ver2[@]}; i++))
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do
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ver1[i]=0
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done
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for ((i=0; i<${#ver1[@]}; i++))
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do
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if [[ -z ${ver2[i]} ]]
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then
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# fill empty fields in ver2 with zeros
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ver2[i]=0
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fi
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if ((10#${ver1[i]} > 10#${ver2[i]}))
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then
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return 1
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fi
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if ((10#${ver1[i]} < 10#${ver2[i]}))
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then
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return 2
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fi
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done
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return 0
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}
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# Download hash from Github URL
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download_hash() {
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HASH_URL="https://github.com/${GITHUB_REPO}/releases/download/v${VERSION_KARMADA}/${INSTALL_CLI_TYPE}-${OS}-${ARCH}.tgz.sha256"
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info "Downloading hash ${HASH_URL}"
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download "${TMP_HASH}" "${HASH_URL}"
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HASH_EXPECTED=$(grep "${INSTALL_CLI_TYPE}-${OS}-${ARCH}.tgz" "${TMP_HASH}")
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HASH_EXPECTED=${HASH_EXPECTED%%[[:blank:]]*}
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}
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# Download binary from Github URL
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download_binary() {
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BIN_URL="https://github.com/${GITHUB_REPO}/releases/download/v${VERSION_KARMADA}/${INSTALL_CLI_TYPE}-${OS}-${ARCH}.tgz"
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info "Downloading binary ${BIN_URL}"
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download "${TMP_BIN}" "${BIN_URL}"
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}
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compute_sha256sum() {
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cmd=$(which sha256sum shasum | head -n 1)
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case $(basename "$cmd") in
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sha256sum)
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sha256sum "$1" | cut -f 1 -d ' '
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;;
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shasum)
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shasum -a 256 "$1" | cut -f 1 -d ' '
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;;
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*)
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fatal "Can not find sha256sum or shasum to compute checksum"
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;;
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esac
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}
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# Verify downloaded binary hash
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verify_binary() {
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info "Verifying binary download"
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HASH_BIN=$(compute_sha256sum "${TMP_BIN}")
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HASH_BIN=${HASH_BIN%%[[:blank:]]*}
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if [[ "${HASH_EXPECTED}" != "${HASH_BIN}" ]]; then
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fatal "Download sha256 does not match ${HASH_EXPECTED}, got ${HASH_BIN}"
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fi
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}
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# Setup permissions and move binary
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setup_binary() {
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info "Installing ${INSTALL_CLI_TYPE} to ${INSTALL_LOCATION}/${INSTALL_CLI_TYPE}"
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tar -xzof "${TMP_BIN}" -C "${TMP_DIR}" --no-same-owner
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local CMD_MOVE="mv -i \"${TMP_DIR}/${INSTALL_CLI_TYPE}\" \"${INSTALL_LOCATION}\""
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if [[ -w "${INSTALL_LOCATION}" ]]; then
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eval "${CMD_MOVE}"
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else
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eval "sudo ${CMD_MOVE}"
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fi
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}
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# Run the install process
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{
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setup_verify_os
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setup_verify_arch
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setup_install_cli
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verify_downloader curl || verify_downloader wget || fatal 'Can not find curl or wget for downloading files'
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setup_tmp
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get_release_version
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download_hash
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download_binary
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verify_binary
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setup_binary
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}
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