mirror of
https://github.com/ceph/ceph-csi.git
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183 lines
6.9 KiB
Bash
Executable File
183 lines
6.9 KiB
Bash
Executable File
#!/bin/bash
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# Copyright 2016 The Kubernetes Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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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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# Use --retry-connrefused opt only if it's supported by curl.
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CURL_RETRY_CONNREFUSED=""
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if curl --help | grep -q -- '--retry-connrefused'; then
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CURL_RETRY_CONNREFUSED='--retry-connrefused'
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fi
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function download-kube-env {
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# Fetch kube-env from GCE metadata server.
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local -r tmp_kube_env="/tmp/kube-env.yaml"
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curl --fail --retry 5 --retry-delay 3 ${CURL_RETRY_CONNREFUSED} --silent --show-error \
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-H "X-Google-Metadata-Request: True" \
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-o "${tmp_kube_env}" \
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http://metadata.google.internal/computeMetadata/v1/instance/attributes/kube-env
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# Convert the yaml format file into a shell-style file.
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sed 's/: /=/' < "${tmp_kube_env}" > "${KUBE_HOME}/kube-env"
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rm -f "${tmp_kube_env}"
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}
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function validate-hash {
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local -r file="$1"
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local -r expected="$2"
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actual=$(sha1sum ${file} | awk '{ print $1 }') || true
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if [[ "${actual}" != "${expected}" ]]; then
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echo "== ${file} corrupted, sha1 ${actual} doesn't match expected ${expected} =="
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return 1
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fi
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}
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# Retry a download until we get it. Takes a hash and a set of URLs.
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#
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# $1 is the sha1 of the URL. Can be "" if the sha1 is unknown.
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# $2+ are the URLs to download.
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function download-or-bust {
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local -r hash="$1"
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shift 1
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local -r urls=( $* )
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while true; do
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for url in "${urls[@]}"; do
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local file="${url##*/}"
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rm -f "${file}"
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if ! curl -f --ipv4 -Lo "${file}" --connect-timeout 20 --max-time 300 --retry 6 --retry-delay 10 ${CURL_RETRY_CONNREFUSED} "${url}"; then
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echo "== Failed to download ${url}. Retrying. =="
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elif [[ -n "${hash}" ]] && ! validate-hash "${file}" "${hash}"; then
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echo "== Hash validation of ${url} failed. Retrying. =="
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else
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if [[ -n "${hash}" ]]; then
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echo "== Downloaded ${url} (SHA1 = ${hash}) =="
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else
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echo "== Downloaded ${url} =="
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fi
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return
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fi
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done
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done
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}
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function split-commas {
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echo $1 | tr "," "\n"
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}
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# Downloads kubernetes binaries and kube-system manifest tarball, unpacks them,
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# and places them into suitable directories. Files are placed in /opt/kubernetes.
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function install-kube-binary-config {
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cd "${KUBE_HOME}"
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local -r server_binary_tar_urls=( $(split-commas "${SERVER_BINARY_TAR_URL}") )
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local -r server_binary_tar="${server_binary_tar_urls[0]##*/}"
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if [[ -n "${SERVER_BINARY_TAR_HASH:-}" ]]; then
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local -r server_binary_tar_hash="${SERVER_BINARY_TAR_HASH}"
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else
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echo "Downloading binary release sha1 (not found in env)"
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download-or-bust "" "${server_binary_tar_urls[@]/.tar.gz/.tar.gz.sha1}"
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local -r server_binary_tar_hash=$(cat "${server_binary_tar}.sha1")
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fi
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echo "Downloading binary release tar"
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download-or-bust "${server_binary_tar_hash}" "${server_binary_tar_urls[@]}"
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tar xzf "${KUBE_HOME}/${server_binary_tar}" -C "${KUBE_HOME}" --overwrite
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# Copy docker_tag and image files to ${KUBE_HOME}/kube-docker-files.
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src_dir="${KUBE_HOME}/kubernetes/server/bin"
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dst_dir="${KUBE_HOME}/kube-docker-files"
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mkdir -p "${dst_dir}"
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cp "${src_dir}/"*.docker_tag "${dst_dir}"
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if [[ "${KUBERNETES_MASTER:-}" == "false" ]]; then
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cp "${src_dir}/kube-proxy.tar" "${dst_dir}"
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else
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cp "${src_dir}/kube-apiserver.tar" "${dst_dir}"
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cp "${src_dir}/kube-controller-manager.tar" "${dst_dir}"
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cp "${src_dir}/kube-scheduler.tar" "${dst_dir}"
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cp -r "${KUBE_HOME}/kubernetes/addons" "${dst_dir}"
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fi
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local -r kube_bin="${KUBE_HOME}/bin"
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mv "${src_dir}/kubelet" "${kube_bin}"
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mv "${src_dir}/kubectl" "${kube_bin}"
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if [[ "${NETWORK_PROVIDER:-}" == "kubenet" ]] || \
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[[ "${NETWORK_PROVIDER:-}" == "cni" ]]; then
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local -r cni_version="v0.6.0"
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local -r cni_tar="cni-plugins-amd64-${cni_version}.tgz"
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local -r cni_sha1="d595d3ded6499a64e8dac02466e2f5f2ce257c9f"
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download-or-bust "${cni_sha1}" "https://storage.googleapis.com/kubernetes-release/network-plugins/${cni_tar}"
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local -r cni_dir="${KUBE_HOME}/cni"
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mkdir -p "${cni_dir}/bin"
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tar xzf "${KUBE_HOME}/${cni_tar}" -C "${cni_dir}/bin" --overwrite
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mv "${cni_dir}/bin"/* "${kube_bin}"
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rmdir "${cni_dir}/bin"
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rm -f "${KUBE_HOME}/${cni_tar}"
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fi
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mv "${KUBE_HOME}/kubernetes/LICENSES" "${KUBE_HOME}"
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mv "${KUBE_HOME}/kubernetes/kubernetes-src.tar.gz" "${KUBE_HOME}"
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# Put kube-system pods manifests in ${KUBE_HOME}/kube-manifests/.
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dst_dir="${KUBE_HOME}/kube-manifests"
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mkdir -p "${dst_dir}"
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local -r manifests_tar_urls=( $(split-commas "${KUBE_MANIFESTS_TAR_URL}") )
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local -r manifests_tar="${manifests_tar_urls[0]##*/}"
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if [ -n "${KUBE_MANIFESTS_TAR_HASH:-}" ]; then
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local -r manifests_tar_hash="${KUBE_MANIFESTS_TAR_HASH}"
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else
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echo "Downloading k8s manifests sha1 (not found in env)"
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download-or-bust "" "${manifests_tar_urls[@]/.tar.gz/.tar.gz.sha1}"
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local -r manifests_tar_hash=$(cat "${manifests_tar}.sha1")
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fi
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echo "Downloading k8s manifests tar"
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download-or-bust "${manifests_tar_hash}" "${manifests_tar_urls[@]}"
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tar xzf "${KUBE_HOME}/${manifests_tar}" -C "${dst_dir}" --overwrite
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local -r kube_addon_registry="${KUBE_ADDON_REGISTRY:-gcr.io/google_containers}"
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if [[ "${kube_addon_registry}" != "gcr.io/google_containers" ]]; then
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find "${dst_dir}" -name \*.yaml -or -name \*.yaml.in | \
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xargs sed -ri "s@(image:\s.*)gcr.io/google_containers@\1${kube_addon_registry}@"
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find "${dst_dir}" -name \*.manifest -or -name \*.json | \
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xargs sed -ri "s@(image\":\s+\")gcr.io/google_containers@\1${kube_addon_registry}@"
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fi
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cp "${dst_dir}/kubernetes/gci-trusty/container-linux-configure-helper.sh" "${KUBE_HOME}/bin/configure-helper.sh"
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chmod -R 755 "${kube_bin}"
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# Clean up.
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rm -rf "${KUBE_HOME}/kubernetes"
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rm -f "${KUBE_HOME}/${server_binary_tar}"
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rm -f "${KUBE_HOME}/${server_binary_tar}.sha1"
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rm -f "${KUBE_HOME}/${manifests_tar}"
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rm -f "${KUBE_HOME}/${manifests_tar}.sha1"
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}
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######### Main Function ##########
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echo "Start to install kubernetes files"
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KUBE_HOME="/opt/kubernetes"
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mkdir -p "${KUBE_HOME}"
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download-kube-env
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source "${KUBE_HOME}/kube-env"
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install-kube-binary-config
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echo "Done for installing kubernetes files"
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# On Container Linux, the hosts is in /usr/share/baselayout/hosts
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# So we need to manually populdate the hosts file here on gce.
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echo "127.0.0.1 localhost" >> /etc/hosts
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echo "::1 localhost" >> /etc/hosts
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echo "Configuring hostname"
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hostnamectl set-hostname $(hostname | cut -f1 -d.)
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