add kubectl-vela (#40)
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yangsoon
GitHub
parent
9098529394
commit
cf6600457b
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#!/usr/bin/env bash
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# Implemented based on Dapr Cli https://github.com/dapr/cli/tree/master/install
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# Kubectl-Vela CLI location
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: ${KUBECTL_VELA_INSTALL_DIR:="/usr/local/bin"}
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# sudo is required to copy binary to KUBECTL_VELA_INSTALL_DIR for linux
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: ${USE_SUDO:="false"}
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# Http request CLI
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KUBECTL_VELA_HTTP_REQUEST_CLI=curl
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# GitHub Organization and repo name to download release
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GITHUB_ORG=oam-dev
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GITHUB_REPO=kubevela
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# Kubectl-Vela CLI filename
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KUBECTL_VELA_CLI_FILENAME=kubectl-vela
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KUBECTL_VELA_CLI_FILE="${KUBECTL_VELA_INSTALL_DIR}/${KUBECTL_VELA_CLI_FILENAME}"
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getSystemInfo() {
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ARCH=$(uname -m)
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case $ARCH in
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armv7*) ARCH="arm";;
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aarch64) ARCH="arm64";;
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x86_64) ARCH="amd64";;
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esac
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OS=$(echo `uname`|tr '[:upper:]' '[:lower:]')
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# Most linux distro needs root permission to copy the file to /usr/local/bin
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if [ "$OS" == "linux" ] && [ "$VELA_INSTALL_DIR" == "/usr/local/bin" ]; then
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USE_SUDO="true"
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fi
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}
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verifySupported() {
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local supported=(darwin-amd64 linux-amd64 linux-arm linux-arm64)
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local current_osarch="${OS}-${ARCH}"
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for osarch in "${supported[@]}"; do
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if [ "$osarch" == "$current_osarch" ]; then
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echo "Your system is ${OS}_${ARCH}"
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return
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fi
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done
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echo "No prebuilt binary for ${current_osarch}"
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exit 1
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}
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runAsRoot() {
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local CMD="$*"
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if [ $EUID -ne 0 -a $USE_SUDO = "true" ]; then
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CMD="sudo $CMD"
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fi
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$CMD
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}
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checkHttpRequestCLI() {
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if type "curl" > /dev/null; then
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KUBECTL_VELA_HTTP_REQUEST_CLI=curl
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elif type "wget" > /dev/null; then
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KUBECTL_VELA_HTTP_REQUEST_CLI=wget
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else
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echo "Either curl or wget is required"
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exit 1
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fi
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}
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checkExistingKubectlVela() {
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if [ -f "$KUBECTL_VELA_CLI_FILE" ]; then
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echo -e "\nKubectl-Vela CLI is detected:"
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$KUBECTL_VELA_CLI_FILE --version
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echo -e "Reinstalling Kubectl-Vela CLI - ${KUBECTL_VELA_CLI_FILE}...\n"
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else
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echo -e "Installing Kubectl-Vela CLI...\n"
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fi
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}
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getLatestRelease() {
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local velaReleaseUrl="https://api.github.com/repos/${GITHUB_ORG}/${GITHUB_REPO}/releases"
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local latest_release=""
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if [ "$KUBECTL_VELA_HTTP_REQUEST_CLI" == "curl" ]; then
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latest_release=$(curl -s $velaReleaseUrl | grep \"tag_name\" | grep -v rc | awk 'NR==1{print $2}' | sed -n 's/\"\(.*\)\",/\1/p')
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else
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latest_release=$(wget -q --header="Accept: application/json" -O - $velaReleaseUrl | grep \"tag_name\" | grep -v rc | awk 'NR==1{print $2}' | sed -n 's/\"\(.*\)\",/\1/p')
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fi
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ret_val=$latest_release
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}
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downloadFile() {
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LATEST_RELEASE_TAG=$1
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KUBECTL_VELA_CLI_ARTIFACT="${KUBECTL_VELA_CLI_FILENAME}-${LATEST_RELEASE_TAG}-${OS}-${ARCH}.tar.gz"
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# convert `-` to `_` to let it work
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DOWNLOAD_BASE="https://github.com/${GITHUB_ORG}/${GITHUB_REPO}/releases/download"
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DOWNLOAD_URL="${DOWNLOAD_BASE}/${LATEST_RELEASE_TAG}/${KUBECTL_VELA_CLI_ARTIFACT}"
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# Create the temp directory
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KUBECTL_VELA_TMP_ROOT=$(mktemp -dt kubectl-vela-install-XXXXXX)
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ARTIFACT_TMP_FILE="$KUBECTL_VELA_TMP_ROOT/$KUBECTL_VELA_CLI_ARTIFACT"
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echo "Downloading $DOWNLOAD_URL ..."
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if [ "$KUBECTL_VELA_HTTP_REQUEST_CLI" == "curl" ]; then
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curl -SsL "$DOWNLOAD_URL" -o "$ARTIFACT_TMP_FILE"
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else
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wget -q -O "$ARTIFACT_TMP_FILE" "$DOWNLOAD_URL"
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fi
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if [ ! -f "$ARTIFACT_TMP_FILE" ]; then
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echo "failed to download $DOWNLOAD_URL ..."
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exit 1
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fi
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}
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installFile() {
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tar xf "$ARTIFACT_TMP_FILE" -C "$KUBECTL_VELA_TMP_ROOT"
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local tmp_root_kubectl_vela_cli="$KUBECTL_VELA_TMP_ROOT/${OS}-${ARCH}/$KUBECTL_VELA_CLI_FILENAME"
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if [ ! -f "$tmp_root_kubectl_vela_cli" ]; then
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echo "Failed to unpack Kubectl-Vela CLI executable."
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exit 1
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fi
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chmod o+x $tmp_root_kubectl_vela_cli
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runAsRoot cp "$tmp_root_kubectl_vela_cli" "$KUBECTL_VELA_INSTALL_DIR"
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if [ -f "$KUBECTL_VELA_CLI_FILE" ]; then
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echo "$KUBECTL_VELA_CLI_FILENAME installed into $KUBECTL_VELA_INSTALL_DIR successfully."
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$KUBECTL_VELA_CLI_FILE --version
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else
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echo "Failed to install $KUBECTL_VELA_CLI_FILENAME"
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exit 1
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fi
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}
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fail_trap() {
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result=$?
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if [ "$result" != "0" ]; then
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echo "Failed to install Kubectl-Vela CLI"
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echo "For support, go to https://kubevela.io"
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fi
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cleanup
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exit $result
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}
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cleanup() {
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if [[ -d "${KUBECTL_VELA_TMP_ROOT:-}" ]]; then
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rm -rf "$KUBECTL_VELA_TMP_ROOT"
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fi
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}
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installCompleted() {
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echo -e "\nTo get started with KubeVela, please visit https://kubevela.io"
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}
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# -----------------------------------------------------------------------------
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# main
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# -----------------------------------------------------------------------------
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trap "fail_trap" EXIT
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getSystemInfo
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verifySupported
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checkExistingKubectlVela
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checkHttpRequestCLI
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if [ -z "$1" ]; then
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echo "Getting the latest Kubectl-Vela CLI..."
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getLatestRelease
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else
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ret_val=v$1
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fi
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echo "Installing $ret_val Kubectl-Vela CLI..."
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downloadFile $ret_val
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installFile
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cleanup
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installCompleted
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