250 строки
6.5 KiB
Bash
Executable File
250 строки
6.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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#
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# Copyright (c) Microsoft Corporation. All rights reserved.
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# Licensed under the MIT license.
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set -eo pipefail
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PROJECT_NAME="aks-engine-azurestack"
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if [ -n "$ACC_CLOUD" ]; then
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# Cloud Shell doesn't have sudo and prefers a different directory.
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: "${USE_SUDO:="false"}"
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: "${AKSE_INSTALL_DIR:="/usr/local/bundle/bin"}"
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mkdir -p $AKSE_INSTALL_DIR
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else
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: "${USE_SUDO:="true"}"
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: "${AKSE_INSTALL_DIR:="/usr/local/bin"}"
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fi
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# initArch discovers the architecture for this system.
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initArch() {
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ARCH=$(uname -m)
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case $ARCH in
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armv5*) ARCH="armv5";;
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armv6*) ARCH="armv6";;
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armv7*) ARCH="arm";;
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aarch64) ARCH="arm64";;
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x86) ARCH="386";;
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x86_64) ARCH="amd64";;
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i686) ARCH="386";;
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i386) ARCH="386";;
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esac
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}
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# initOS discovers the operating system for this system.
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initOS() {
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OS=$(uname | tr '[:upper:]' '[:lower:]')
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case "$OS" in
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# Minimalist GNU for Windows
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mingw*) OS='windows';;
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esac
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}
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# runs the given command as root (detects if we are root already)
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runAsRoot() {
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local CMD="$*"
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if [ $EUID -ne 0 ] && [ "$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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# verifySupported checks that the os/arch combination is supported for
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# binary builds.
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verifySupported() {
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local supported="darwin-386\ndarwin-amd64\nlinux-386\nlinux-amd64\nlinux-arm\nlinux-arm64\nlinux-ppc64le\nwindows-386\nwindows-amd64"
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if ! echo "${supported}" | grep -q "${OS}-${ARCH}"; then
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echo "No prebuilt binary for ${OS}-${ARCH}."
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echo "To build from source, go to https://github.com/Azure/aks-engine-azurestack"
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exit 1
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fi
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if ! type "curl" > /dev/null && ! type "wget" > /dev/null; then
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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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if ! type "jq" > /dev/null; then
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echo "jq is required"
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exit 1
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fi
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}
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# checkDesiredVersion checks if the desired version is available.
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checkDesiredVersion() {
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# Use the GitHub releases API for the project to find the desired version for this project.
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local release_url
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if [[ -z "${DESIRED_VERSION}" ]]; then
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release_url="https://api.github.com/repos/Azure/aks-engine-azurestack/releases/latest"
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else
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release_url="https://api.github.com/repos/Azure/aks-engine-azurestack/releases/tags/${DESIRED_VERSION}"
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fi
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# shellcheck disable=SC2086
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local requestCmd
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if type "curl" > /dev/null; then
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requestCmd="curl -Ssl "
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if [[ -n "${GITHUB_TOKEN}" ]]; then
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requestCmd+="-H 'Authorization: token ${GITHUB_TOKEN}'"
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fi
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requestCmd+=" --fail ${release_url}"
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elif type "wget" > /dev/null; then
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requestCmd="wget -nv "
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if [[ -n "${GITHUB_TOKEN}" ]]; then
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requestCmd+="--header='Authorization: token ${GITHUB_TOKEN}'"
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fi
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requestCmd+=" -O - ${release_url}"
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fi
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local response
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if ! response=$(eval "${requestCmd}") ; then
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echo "Failed requesting release for ${DESIRED_VERSION} tag from GitHub API."
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exit 1
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fi
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TAG=$(jq -r '.name | values' <<< "${response}")
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if [[ -z "${TAG}" ]]; then
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echo "Cannot determine ${DESIRED_VERSION} tag."
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exit 1
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fi
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}
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# checkAKSEInstalledVersion checks which version of AKSE is installed and
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# if it needs to be changed.
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checkAKSEInstalledVersion() {
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if [[ -f "${AKSE_INSTALL_DIR}/${PROJECT_NAME}" ]]; then
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local version
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version=$(aks-engine version | grep 'Version' | cut -d' ' -f2)
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if [[ "$version" == "$TAG" ]]; then
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echo "AKS-Engine ${version} is already ${DESIRED_VERSION:-latest}"
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return 0
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else
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echo "AKS-Engine ${TAG} is available. Changing from version ${version}."
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return 1
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fi
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else
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return 1
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fi
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}
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# downloadFile downloads the latest binary package and also the checksum
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# for that binary.
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downloadFile() {
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AKSE_DIST="aks-engine-azurestack-$TAG-$OS-$ARCH.tar.gz"
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DOWNLOAD_URL="https://github.com/Azure/aks-engine-azurestack/releases/download/$TAG/$AKSE_DIST"
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AKSE_TMP_ROOT="$(mktemp -dt akse-installer-XXXXXX)"
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AKSE_TMP_FILE="$AKSE_TMP_ROOT/$AKSE_DIST"
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echo "Downloading $DOWNLOAD_URL"
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if type "curl" > /dev/null; then
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curl -SsL "$DOWNLOAD_URL" -o "$AKSE_TMP_FILE"
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elif type "wget" > /dev/null; then
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wget -q -O "$AKSE_TMP_FILE" "$DOWNLOAD_URL"
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fi
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}
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# installFile vunpacks and installs it.
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installFile() {
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AKSE_TMP="$AKSE_TMP_ROOT/$PROJECT_NAME"
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mkdir -p "$AKSE_TMP"
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tar xf "$AKSE_TMP_FILE" -C "$AKSE_TMP"
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AKSE_TMP_BIN="$AKSE_TMP/$PROJECT_NAME-$TAG-$OS-$ARCH"
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echo "Preparing to install $PROJECT_NAME into ${AKSE_INSTALL_DIR}"
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runAsRoot cp "$AKSE_TMP_BIN/$PROJECT_NAME" "$AKSE_INSTALL_DIR"
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echo "$PROJECT_NAME installed into $AKSE_INSTALL_DIR/$PROJECT_NAME"
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}
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# fail_trap is executed if an error occurs.
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fail_trap() {
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result=$?
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if [ "$result" != "0" ]; then
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if [[ -n "$INPUT_ARGUMENTS" ]]; then
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echo "Failed to install $PROJECT_NAME with the arguments provided: $INPUT_ARGUMENTS"
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help
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else
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echo "Failed to install $PROJECT_NAME"
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fi
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echo -e "\tFor support, go to https://github.com/Azure/aks-engine-azurestack."
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fi
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cleanup
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exit $result
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}
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# testVersion tests the installed client to make sure it is working.
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testVersion() {
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set +e
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if [ "$?" = "1" ]; then
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# shellcheck disable=SC2016
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echo "$PROJECT_NAME not found. Is $AKSE_INSTALL_DIR on your "'$PATH?'
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exit 1
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fi
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set -e
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echo "Run '$PROJECT_NAME version' to test."
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}
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# help provides possible cli installation arguments
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help () {
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echo "Accepted cli arguments are:"
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echo -e "\t[--help|-h ] ->> prints this help"
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echo -e "\t[--version|-v <desired_version>] . When not defined it defaults to latest"
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echo -e "\te.g. --version v0.32.3 or -v latest"
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echo -e "\t[--no-sudo] ->> install without sudo\n"
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echo -e "\tIf GITHUB_TOKEN env var is set, it will be used to fetch releases via the GitHub API.\n"
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}
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# cleanup temporary files
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cleanup() {
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if [[ -d "${AKSE_TMP_ROOT:-}" ]]; then
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rm -rf "$AKSE_TMP_ROOT"
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fi
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}
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# Execution
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#Stop execution on any error
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trap "fail_trap" EXIT
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set -e
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# Parsing input arguments (if any)
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export INPUT_ARGUMENTS=( "${@}" )
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set -u
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while [[ $# -gt 0 ]]; do
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case $1 in
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'--version'|-v)
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shift
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if [[ $# -ne 0 ]]; then
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export DESIRED_VERSION="${1}"
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else
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echo -e "Please provide the desired version. e.g. --version v0.32.3 or -v latest"
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exit 0
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fi
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;;
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'--no-sudo')
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USE_SUDO="false"
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;;
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'--help'|-h)
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help
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exit 0
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;;
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*) exit 1
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;;
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esac
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shift
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done
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set +u
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initArch
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initOS
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verifySupported
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checkDesiredVersion
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if ! checkAKSEInstalledVersion; then
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downloadFile
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installFile
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fi
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testVersion
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cleanup
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