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Create a get-kube-binaries script to download client/server tarballs
Also fix some errors in get-kube.sh, and remove client architectures we don't officially support.
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| #!/bin/bash | ||
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| # Copyright 2016 The Kubernetes Authors. | ||
| # | ||
| # Licensed under the Apache License, Version 2.0 (the "License"); | ||
| # you may not use this file except in compliance with the License. | ||
| # You may obtain a copy of the License at | ||
| # | ||
| # http://www.apache.org/licenses/LICENSE-2.0 | ||
| # | ||
| # Unless required by applicable law or agreed to in writing, software | ||
| # distributed under the License is distributed on an "AS IS" BASIS, | ||
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| # See the License for the specific language governing permissions and | ||
| # limitations under the License. | ||
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| # This script downloads and installs the Kubernetes client and server binaries. | ||
| # It is intended to be called from an extracted Kubernetes release tarball. | ||
| # | ||
| # We automatically choose the correct client binaries to download. | ||
| # | ||
| # Options: | ||
| # Set KUBERNETES_SERVER_ARCH to choose the server (Kubernetes cluster) | ||
| # architecture to download: | ||
| # * amd64 [default] | ||
| # * arm | ||
| # * arm64 | ||
| # * ppc64le | ||
| # | ||
| # Set KUBERNETES_SKIP_CONFIRM to skip the installation confirmation prompt. | ||
| # Set KUBERNETES_RELEASE_URL to choose where to download binaries from. | ||
| # (Defaults to https://storage.googleapis.com/kubernetes-release/release). | ||
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| set -o errexit | ||
| set -o nounset | ||
| set -o pipefail | ||
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| KUBE_ROOT=$(cd $(dirname "${BASH_SOURCE}")/.. && pwd) | ||
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| KUBERNETES_RELEASE_URL="${KUBERNETES_RELEASE_URL:-https://storage.googleapis.com/kubernetes-release/release}" | ||
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| function detect_kube_release() { | ||
| if [[ ! -e "${KUBE_ROOT}/version" ]]; then | ||
| echo "Can't determine Kubernetes release." >&2 | ||
| echo "This script should only be run from a prebuilt Kubernetes release." >&2 | ||
| echo "Did you mean to use get-kube.sh instead?" >&2 | ||
| exit 1 | ||
| fi | ||
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| KUBERNETES_RELEASE=$(cat "${KUBE_ROOT}/version") | ||
| DOWNLOAD_URL_PREFIX="${KUBERNETES_RELEASE_URL}/${KUBERNETES_RELEASE}" | ||
| } | ||
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| function detect_client_info() { | ||
| local kernel=$(uname -s) | ||
| case "${kernel}" in | ||
| Darwin) | ||
| CLIENT_PLATFORM="darwin" | ||
| ;; | ||
| Linux) | ||
| CLIENT_PLATFORM="linux" | ||
| ;; | ||
| *) | ||
| echo "Unknown, unsupported platform: ${kernel}." >&2 | ||
| echo "Supported platforms: Linux, Darwin." >&2 | ||
| echo "Bailing out." >&2 | ||
| exit 2 | ||
| esac | ||
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| # TODO: migrate the kube::util::host_platform function out of hack/lib and | ||
| # use it here. | ||
| local machine=$(uname -m) | ||
| case "${machine}" in | ||
| x86_64*|i?86_64*|amd64*) | ||
| CLIENT_ARCH="amd64" | ||
| ;; | ||
| aarch64*|arm64*) | ||
| CLIENT_ARCH="arm64" | ||
| ;; | ||
| arm*) | ||
| CLIENT_ARCH="arm" | ||
| ;; | ||
| i?86*) | ||
| CLIENT_ARCH="386" | ||
| ;; | ||
| *) | ||
| echo "Unknown, unsupported architecture (${machine})." >&2 | ||
| echo "Supported architectures x86_64, i686, arm, arm64." >&2 | ||
| echo "Bailing out." >&2 | ||
| exit 3 | ||
| ;; | ||
| esac | ||
| } | ||
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| function md5sum_file() { | ||
| if which md5 >/dev/null 2>&1; then | ||
| md5 -q "$1" | ||
| else | ||
| md5sum "$1" | awk '{ print $1 }' | ||
| fi | ||
| } | ||
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| function sha1sum_file() { | ||
| if which shasum >/dev/null 2>&1; then | ||
| shasum -a1 "$1" | awk '{ print $1 }' | ||
| else | ||
| sha1sum "$1" | awk '{ print $1 }' | ||
| fi | ||
| } | ||
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| function download_tarball() { | ||
| local -r download_path="$1" | ||
| local -r file="$2" | ||
| url="${DOWNLOAD_URL_PREFIX}/${file}" | ||
| mkdir -p "${download_path}" | ||
| if [[ $(which curl) ]]; then | ||
| curl -L "${url}" -o "${download_path}/${file}" | ||
| elif [[ $(which wget) ]]; then | ||
| wget "${url}" -O "${download_path}/${file}" | ||
| else | ||
| echo "Couldn't find curl or wget. Bailing out." >&2 | ||
| exit 4 | ||
| fi | ||
| echo | ||
| local md5sum=$(md5sum_file "${download_path}/${file}") | ||
| echo "md5sum(${file})=${md5sum}" | ||
| local sha1sum=$(sha1sum_file "${download_path}/${file}") | ||
| echo "sha1sum(${file})=${sha1sum}" | ||
| echo | ||
| # TODO: add actual verification | ||
| } | ||
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| function extract_tarball() { | ||
| local -r tarfile="$1" | ||
| local -r platform="$2" | ||
| local -r arch="$3" | ||
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| platforms_dir="${KUBE_ROOT}/platforms/${platform}/${arch}" | ||
| echo "Extracting ${tarfile} into ${platforms_dir}" | ||
| mkdir -p "${platforms_dir}" | ||
| # Tarball looks like kubernetes/{client,server}/bin/BINARY" | ||
| tar -xzf "${tarfile}" --strip-components 3 -C "${platforms_dir}" | ||
| # Create convenience symlink | ||
| ln -sf "${platforms_dir}" "$(dirname ${tarfile})/bin" | ||
| echo "Add '$(dirname ${tarfile})/bin' to your PATH to use newly-installed binaries." | ||
| } | ||
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| detect_kube_release | ||
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| SERVER_PLATFORM="linux" | ||
| SERVER_ARCH="${KUBERNETES_SERVER_ARCH:-amd64}" | ||
| SERVER_TAR="kubernetes-server-${SERVER_PLATFORM}-${SERVER_ARCH}.tar.gz" | ||
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| detect_client_info | ||
| CLIENT_TAR="kubernetes-client-${CLIENT_PLATFORM}-${CLIENT_ARCH}.tar.gz" | ||
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| echo "Kubernetes release: ${KUBERNETES_RELEASE}" | ||
| echo "Server: ${SERVER_PLATFORM}/${SERVER_ARCH}" | ||
| echo "Client: ${CLIENT_PLATFORM}/${CLIENT_ARCH}" | ||
| echo | ||
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| # TODO: remove this check and default to true when we stop shipping server | ||
| # tarballs in kubernetes.tar.gz | ||
| DOWNLOAD_SERVER_TAR=false | ||
| if [[ ! -e "${KUBE_ROOT}/server/${SERVER_TAR}" ]]; then | ||
| DOWNLOAD_SERVER_TAR=true | ||
| echo "Will download ${SERVER_TAR} from ${DOWNLOAD_URL_PREFIX}" | ||
| fi | ||
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| # TODO: remove this check and default to true when we stop shipping kubectl | ||
| # in kubernetes.tar.gz | ||
| DOWNLOAD_CLIENT_TAR=false | ||
| if [[ ! -x "${KUBE_ROOT}/platforms/${CLIENT_PLATFORM}/${CLIENT_ARCH}/kubectl" ]]; then | ||
| DOWNLOAD_CLIENT_TAR=true | ||
| echo "Will download and extract ${CLIENT_TAR} from ${DOWNLOAD_URL_PREFIX}" | ||
| fi | ||
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| if [[ "${DOWNLOAD_CLIENT_TAR}" == false && "${DOWNLOAD_SERVER_TAR}" == false ]]; then | ||
| echo "Nothing additional to download." | ||
| exit 0 | ||
| fi | ||
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| if [[ -z "${KUBERNETES_SKIP_CONFIRM-}" ]]; then | ||
| echo "Is this ok? [Y]/n" | ||
| read confirm | ||
| if [[ "${confirm}" =~ ^[nN]$ ]]; then | ||
| echo "Aborting." | ||
| exit 0 | ||
| fi | ||
| fi | ||
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| if "${DOWNLOAD_SERVER_TAR}"; then | ||
| download_tarball "${KUBE_ROOT}/server" "${SERVER_TAR}" | ||
| fi | ||
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| if "${DOWNLOAD_CLIENT_TAR}"; then | ||
| download_tarball "${KUBE_ROOT}/client" "${CLIENT_TAR}" | ||
| extract_tarball "${KUBE_ROOT}/client/${CLIENT_TAR}" "${CLIENT_PLATFORM}" "${CLIENT_ARCH}" | ||
| fi |
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