829 lines
25 KiB
Bash
Executable File
829 lines
25 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Copyright 2014 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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function kube::util::sourced_variable {
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# Call this function to tell shellcheck that a variable is supposed to
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# be used from other calling context. This helps quiet an "unused
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# variable" warning from shellcheck and also document your code.
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true
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}
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kube::util::sortable_date() {
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date "+%Y%m%d-%H%M%S"
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}
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# arguments: target, item1, item2, item3, ...
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# returns 0 if target is in the given items, 1 otherwise.
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kube::util::array_contains() {
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local search="$1"
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local element
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shift
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for element; do
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if [[ "${element}" == "${search}" ]]; then
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return 0
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fi
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done
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return 1
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}
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kube::util::wait_for_url() {
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local url=$1
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local prefix=${2:-}
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local wait=${3:-1}
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local times=${4:-30}
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local maxtime=${5:-1}
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command -v curl >/dev/null || {
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kube::log::usage "curl must be installed"
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exit 1
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}
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local i
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for i in $(seq 1 "${times}"); do
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local out
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if out=$(curl --max-time "${maxtime}" -gkfs "${@:6}" "${url}" 2>/dev/null); then
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kube::log::status "On try ${i}, ${prefix}: ${out}"
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return 0
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fi
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sleep "${wait}"
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done
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kube::log::error "Timed out waiting for ${prefix} to answer at ${url}; tried ${times} waiting ${wait} between each"
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return 1
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}
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kube::util::wait_for_url_with_bearer_token() {
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local url=$1
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local token=$2
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local prefix=${3:-}
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local wait=${4:-1}
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local times=${5:-30}
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local maxtime=${6:-1}
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kube::util::wait_for_url "${url}" "${prefix}" "${wait}" "${times}" "${maxtime}" -H "Authorization: Bearer ${token}"
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}
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# Example: kube::util::wait_for_success 120 5 "kubectl get nodes|grep localhost"
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# arguments: wait time, sleep time, shell command
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# returns 0 if the shell command get output, 1 otherwise.
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kube::util::wait_for_success(){
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local wait_time="$1"
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local sleep_time="$2"
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local cmd="$3"
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while [ "$wait_time" -gt 0 ]; do
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if eval "$cmd"; then
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return 0
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else
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sleep "$sleep_time"
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wait_time=$((wait_time-sleep_time))
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fi
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done
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return 1
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}
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# Example: kube::util::trap_add 'echo "in trap DEBUG"' DEBUG
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# See: http://stackoverflow.com/questions/3338030/multiple-bash-traps-for-the-same-signal
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kube::util::trap_add() {
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local trap_add_cmd
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trap_add_cmd=$1
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shift
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for trap_add_name in "$@"; do
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local existing_cmd
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local new_cmd
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# Grab the currently defined trap commands for this trap
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existing_cmd=$(trap -p "${trap_add_name}" | awk -F"'" '{print $2}')
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if [[ -z "${existing_cmd}" ]]; then
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new_cmd="${trap_add_cmd}"
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else
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new_cmd="${trap_add_cmd};${existing_cmd}"
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fi
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# Assign the test. Disable the shellcheck warning telling that trap
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# commands should be single quoted to avoid evaluating them at this
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# point instead evaluating them at run time. The logic of adding new
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# commands to a single trap requires them to be evaluated right away.
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# shellcheck disable=SC2064
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trap "${new_cmd}" "${trap_add_name}"
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done
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}
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# Opposite of kube::util::ensure-temp-dir()
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kube::util::cleanup-temp-dir() {
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rm -rf "${KUBE_TEMP}"
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}
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# Create a temp dir that'll be deleted at the end of this bash session.
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#
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# Vars set:
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# KUBE_TEMP
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kube::util::ensure-temp-dir() {
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if [[ -z ${KUBE_TEMP-} ]]; then
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KUBE_TEMP=$(mktemp -d 2>/dev/null || mktemp -d -t kubernetes.XXXXXX)
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kube::util::trap_add kube::util::cleanup-temp-dir EXIT
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fi
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}
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kube::util::host_os() {
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local host_os
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case "$(uname -s)" in
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Darwin)
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host_os=darwin
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;;
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Linux)
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host_os=linux
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;;
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*)
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kube::log::error "Unsupported host OS. Must be Linux or Mac OS X."
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exit 1
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;;
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esac
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echo "${host_os}"
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}
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kube::util::host_arch() {
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local host_arch
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case "$(uname -m)" in
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x86_64*)
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host_arch=amd64
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;;
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i?86_64*)
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host_arch=amd64
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;;
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amd64*)
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host_arch=amd64
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;;
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aarch64*)
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host_arch=arm64
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;;
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arm64*)
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host_arch=arm64
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;;
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arm*)
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host_arch=arm
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;;
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i?86*)
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host_arch=x86
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;;
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s390x*)
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host_arch=s390x
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;;
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ppc64le*)
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host_arch=ppc64le
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;;
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*)
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kube::log::error "Unsupported host arch. Must be x86_64, 386, arm, arm64, s390x or ppc64le."
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exit 1
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;;
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esac
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echo "${host_arch}"
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}
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# This figures out the host platform without relying on golang. We need this as
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# we don't want a golang install to be a prerequisite to building yet we need
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# this info to figure out where the final binaries are placed.
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kube::util::host_platform() {
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echo "$(kube::util::host_os)/$(kube::util::host_arch)"
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}
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# looks for $1 in well-known output locations for the platform ($2)
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# $KUBE_ROOT must be set
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kube::util::find-binary-for-platform() {
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local -r lookfor="$1"
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local -r platform="$2"
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local locations=(
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"${KUBE_ROOT}/_output/bin/${lookfor}"
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"${KUBE_ROOT}/_output/dockerized/bin/${platform}/${lookfor}"
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"${KUBE_ROOT}/_output/local/bin/${platform}/${lookfor}"
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"${KUBE_ROOT}/platforms/${platform}/${lookfor}"
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)
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# if we're looking for the host platform, add local non-platform-qualified search paths
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if [[ "${platform}" = "$(kube::util::host_platform)" ]]; then
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locations+=(
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"${KUBE_ROOT}/_output/local/go/bin/${lookfor}"
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"${KUBE_ROOT}/_output/dockerized/go/bin/${lookfor}"
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);
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fi
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# List most recently-updated location.
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local -r bin=$( (ls -t "${locations[@]}" 2>/dev/null || true) | head -1 )
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if [[ -z "${bin}" ]]; then
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kube::log::error "Failed to find binary ${lookfor} for platform ${platform}"
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return 1
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fi
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echo -n "${bin}"
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}
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# looks for $1 in well-known output locations for the host platform
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# $KUBE_ROOT must be set
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kube::util::find-binary() {
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kube::util::find-binary-for-platform "$1" "$(kube::util::host_platform)"
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}
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# Run all known doc generators (today gendocs and genman for kubectl)
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# $1 is the directory to put those generated documents
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kube::util::gen-docs() {
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local dest="$1"
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# Find binary
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gendocs=$(kube::util::find-binary "gendocs")
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genkubedocs=$(kube::util::find-binary "genkubedocs")
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genman=$(kube::util::find-binary "genman")
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genyaml=$(kube::util::find-binary "genyaml")
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mkdir -p "${dest}/docs/user-guide/kubectl/"
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"${gendocs}" "${dest}/docs/user-guide/kubectl/"
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mkdir -p "${dest}/docs/admin/"
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"${genkubedocs}" "${dest}/docs/admin/" "kube-apiserver"
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"${genkubedocs}" "${dest}/docs/admin/" "kube-controller-manager"
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"${genkubedocs}" "${dest}/docs/admin/" "kube-proxy"
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"${genkubedocs}" "${dest}/docs/admin/" "kube-scheduler"
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"${genkubedocs}" "${dest}/docs/admin/" "kubelet"
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"${genkubedocs}" "${dest}/docs/admin/" "kubeadm"
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mkdir -p "${dest}/docs/man/man1/"
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"${genman}" "${dest}/docs/man/man1/" "kube-apiserver"
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"${genman}" "${dest}/docs/man/man1/" "kube-controller-manager"
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"${genman}" "${dest}/docs/man/man1/" "kube-proxy"
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"${genman}" "${dest}/docs/man/man1/" "kube-scheduler"
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"${genman}" "${dest}/docs/man/man1/" "kubelet"
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"${genman}" "${dest}/docs/man/man1/" "kubectl"
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"${genman}" "${dest}/docs/man/man1/" "kubeadm"
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mkdir -p "${dest}/docs/yaml/kubectl/"
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"${genyaml}" "${dest}/docs/yaml/kubectl/"
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# create the list of generated files
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pushd "${dest}" > /dev/null || return 1
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touch docs/.generated_docs
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find . -type f | cut -sd / -f 2- | LC_ALL=C sort > docs/.generated_docs
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popd > /dev/null || return 1
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}
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# Removes previously generated docs-- we don't want to check them in. $KUBE_ROOT
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# must be set.
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kube::util::remove-gen-docs() {
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if [ -e "${KUBE_ROOT}/docs/.generated_docs" ]; then
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# remove all of the old docs; we don't want to check them in.
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while read -r file; do
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rm "${KUBE_ROOT}/${file}" 2>/dev/null || true
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done <"${KUBE_ROOT}/docs/.generated_docs"
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# The docs/.generated_docs file lists itself, so we don't need to explicitly
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# delete it.
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fi
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}
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# Takes a group/version and returns the path to its location on disk, sans
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# "pkg". E.g.:
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# * default behavior: extensions/v1beta1 -> apis/extensions/v1beta1
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# * default behavior for only a group: experimental -> apis/experimental
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# * Special handling for empty group: v1 -> api/v1, unversioned -> api/unversioned
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# * Special handling for groups suffixed with ".k8s.io": foo.k8s.io/v1 -> apis/foo/v1
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# * Very special handling for when both group and version are "": / -> api
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#
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# $KUBE_ROOT must be set.
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kube::util::group-version-to-pkg-path() {
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local group_version="$1"
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while IFS=$'\n' read -r api; do
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if [[ "${api}" = "${group_version/.*k8s.io/}" ]]; then
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echo "vendor/k8s.io/api/${group_version/.*k8s.io/}"
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return
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fi
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done < <(cd "${KUBE_ROOT}/staging/src/k8s.io/api" && find . -name types.go -exec dirname {} \; | sed "s|\./||g" | sort)
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# "v1" is the API GroupVersion
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if [[ "${group_version}" == "v1" ]]; then
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echo "vendor/k8s.io/api/core/v1"
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return
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fi
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# Special cases first.
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# TODO(lavalamp): Simplify this by moving pkg/api/v1 and splitting pkg/api,
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# moving the results to pkg/apis/api.
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case "${group_version}" in
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# both group and version are "", this occurs when we generate deep copies for internal objects of the legacy v1 API.
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__internal)
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echo "pkg/apis/core"
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;;
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meta/v1)
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echo "vendor/k8s.io/apimachinery/pkg/apis/meta/v1"
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;;
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meta/v1beta1)
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echo "vendor/k8s.io/apimachinery/pkg/apis/meta/v1beta1"
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;;
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internal.apiserver.k8s.io/v1alpha1)
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echo "vendor/k8s.io/api/apiserverinternal/v1alpha1"
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;;
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*.k8s.io)
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echo "pkg/apis/${group_version%.*k8s.io}"
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;;
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*.k8s.io/*)
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echo "pkg/apis/${group_version/.*k8s.io/}"
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;;
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*)
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echo "pkg/apis/${group_version%__internal}"
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;;
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esac
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}
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# Takes a group/version and returns the swagger-spec file name.
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# default behavior: extensions/v1beta1 -> extensions_v1beta1
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# special case for v1: v1 -> v1
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kube::util::gv-to-swagger-name() {
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local group_version="$1"
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case "${group_version}" in
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v1)
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echo "v1"
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;;
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*)
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echo "${group_version%/*}_${group_version#*/}"
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;;
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esac
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}
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# Returns the name of the upstream remote repository name for the local git
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# repo, e.g. "upstream" or "origin".
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kube::util::git_upstream_remote_name() {
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git remote -v | grep fetch |\
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grep -E 'github.com[/:]kubernetes/kubernetes|k8s.io/kubernetes' |\
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head -n 1 | awk '{print $1}'
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}
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# Exits script if working directory is dirty. If it's run interactively in the terminal
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# the user can commit changes in a second terminal. This script will wait.
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kube::util::ensure_clean_working_dir() {
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while ! git diff HEAD --exit-code &>/dev/null; do
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echo -e "\nUnexpected dirty working directory:\n"
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if tty -s; then
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git status -s
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else
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git diff -a # be more verbose in log files without tty
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exit 1
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fi | sed 's/^/ /'
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echo -e "\nCommit your changes in another terminal and then continue here by pressing enter."
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read -r
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done 1>&2
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}
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# Find the base commit using:
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# $PULL_BASE_SHA if set (from Prow)
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# current ref from the remote upstream branch
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kube::util::base_ref() {
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local -r git_branch=$1
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if [[ -n ${PULL_BASE_SHA:-} ]]; then
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echo "${PULL_BASE_SHA}"
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return
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fi
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full_branch="$(kube::util::git_upstream_remote_name)/${git_branch}"
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# make sure the branch is valid, otherwise the check will pass erroneously.
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if ! git describe "${full_branch}" >/dev/null; then
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# abort!
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exit 1
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fi
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echo "${full_branch}"
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}
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# Checks whether there are any files matching pattern $2 changed between the
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# current branch and upstream branch named by $1.
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# Returns 1 (false) if there are no changes
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# 0 (true) if there are changes detected.
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kube::util::has_changes() {
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local -r git_branch=$1
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local -r pattern=$2
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local -r not_pattern=${3:-totallyimpossiblepattern}
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local base_ref
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base_ref=$(kube::util::base_ref "${git_branch}")
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echo "Checking for '${pattern}' changes against '${base_ref}'"
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# notice this uses ... to find the first shared ancestor
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if git diff --name-only "${base_ref}...HEAD" | grep -v -E "${not_pattern}" | grep "${pattern}" > /dev/null; then
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return 0
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fi
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# also check for pending changes
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if git status --porcelain | grep -v -E "${not_pattern}" | grep "${pattern}" > /dev/null; then
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echo "Detected '${pattern}' uncommitted changes."
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return 0
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fi
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echo "No '${pattern}' changes detected."
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return 1
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}
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kube::util::download_file() {
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local -r url=$1
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local -r destination_file=$2
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rm "${destination_file}" 2&> /dev/null || true
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for i in $(seq 5)
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do
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if ! curl -fsSL --retry 3 --keepalive-time 2 "${url}" -o "${destination_file}"; then
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echo "Downloading ${url} failed. $((5-i)) retries left."
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sleep 1
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else
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echo "Downloading ${url} succeed"
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return 0
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fi
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done
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return 1
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}
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|
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# Test whether openssl is installed.
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# Sets:
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# OPENSSL_BIN: The path to the openssl binary to use
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function kube::util::test_openssl_installed {
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if ! openssl version >& /dev/null; then
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echo "Failed to run openssl. Please ensure openssl is installed"
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exit 1
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fi
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OPENSSL_BIN=$(command -v openssl)
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}
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# Query the API server for client certificate authentication capabilities
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function kube::util::test_client_certificate_authentication_enabled {
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local output
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kube::util::test_openssl_installed
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output=$(echo \
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| "${OPENSSL_BIN}" s_client -connect "127.0.0.1:${SECURE_API_PORT}" 2> /dev/null \
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| grep -A3 'Acceptable client certificate CA names')
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if [[ "${output}" != *"/CN=127.0.0.1"* ]] && [[ "${output}" != *"CN = 127.0.0.1"* ]]; then
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echo "API server not configured for client certificate authentication"
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echo "Output of from acceptable client certificate check: ${output}"
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exit 1
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fi
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}
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|
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# creates a client CA, args are sudo, dest-dir, ca-id, purpose
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|
# purpose is dropped in after "key encipherment", you usually want
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# '"client auth"'
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# '"server auth"'
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# '"client auth","server auth"'
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|
function kube::util::create_signing_certkey {
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local sudo=$1
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local dest_dir=$2
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local id=$3
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local purpose=$4
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# Create client ca
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|
${sudo} /usr/bin/env bash -e <<EOF
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|
rm -f "${dest_dir}/${id}-ca.crt" "${dest_dir}/${id}-ca.key"
|
|
${OPENSSL_BIN} req -x509 -sha256 -new -nodes -days 365 -newkey rsa:2048 -keyout "${dest_dir}/${id}-ca.key" -out "${dest_dir}/${id}-ca.crt" -subj "/C=xx/ST=x/L=x/O=x/OU=x/CN=ca/emailAddress=x/"
|
|
echo '{"signing":{"default":{"expiry":"43800h","usages":["signing","key encipherment",${purpose}]}}}' > "${dest_dir}/${id}-ca-config.json"
|
|
EOF
|
|
}
|
|
|
|
# signs a client certificate: args are sudo, dest-dir, CA, filename (roughly), username, groups...
|
|
function kube::util::create_client_certkey {
|
|
local sudo=$1
|
|
local dest_dir=$2
|
|
local ca=$3
|
|
local id=$4
|
|
local cn=${5:-$4}
|
|
local groups=""
|
|
local SEP=""
|
|
shift 5
|
|
while [ -n "${1:-}" ]; do
|
|
groups+="${SEP}{\"O\":\"$1\"}"
|
|
SEP=","
|
|
shift 1
|
|
done
|
|
${sudo} /usr/bin/env bash -e <<EOF
|
|
cd ${dest_dir}
|
|
echo '{"CN":"${cn}","names":[${groups}],"hosts":[""],"key":{"algo":"rsa","size":2048}}' | ${CFSSL_BIN} gencert -ca=${ca}.crt -ca-key=${ca}.key -config=${ca}-config.json - | ${CFSSLJSON_BIN} -bare client-${id}
|
|
mv "client-${id}-key.pem" "client-${id}.key"
|
|
mv "client-${id}.pem" "client-${id}.crt"
|
|
rm -f "client-${id}.csr"
|
|
EOF
|
|
}
|
|
|
|
# signs a serving certificate: args are sudo, dest-dir, ca, filename (roughly), subject, hosts...
|
|
function kube::util::create_serving_certkey {
|
|
local sudo=$1
|
|
local dest_dir=$2
|
|
local ca=$3
|
|
local id=$4
|
|
local cn=${5:-$4}
|
|
local hosts=""
|
|
local SEP=""
|
|
shift 5
|
|
while [ -n "${1:-}" ]; do
|
|
hosts+="${SEP}\"$1\""
|
|
SEP=","
|
|
shift 1
|
|
done
|
|
${sudo} /usr/bin/env bash -e <<EOF
|
|
cd ${dest_dir}
|
|
echo '{"CN":"${cn}","hosts":[${hosts}],"key":{"algo":"rsa","size":2048}}' | ${CFSSL_BIN} gencert -ca=${ca}.crt -ca-key=${ca}.key -config=${ca}-config.json - | ${CFSSLJSON_BIN} -bare serving-${id}
|
|
mv "serving-${id}-key.pem" "serving-${id}.key"
|
|
mv "serving-${id}.pem" "serving-${id}.crt"
|
|
rm -f "serving-${id}.csr"
|
|
EOF
|
|
}
|
|
|
|
# creates a self-contained kubeconfig: args are sudo, dest-dir, ca file, host, port, client id, token(optional)
|
|
function kube::util::write_client_kubeconfig {
|
|
local sudo=$1
|
|
local dest_dir=$2
|
|
local ca_file=$3
|
|
local api_host=$4
|
|
local api_port=$5
|
|
local client_id=$6
|
|
local token=${7:-}
|
|
cat <<EOF | ${sudo} tee "${dest_dir}"/"${client_id}".kubeconfig > /dev/null
|
|
apiVersion: v1
|
|
kind: Config
|
|
clusters:
|
|
- cluster:
|
|
certificate-authority: ${ca_file}
|
|
server: https://${api_host}:${api_port}/
|
|
name: local-up-cluster
|
|
users:
|
|
- user:
|
|
token: ${token}
|
|
client-certificate: ${dest_dir}/client-${client_id}.crt
|
|
client-key: ${dest_dir}/client-${client_id}.key
|
|
name: local-up-cluster
|
|
contexts:
|
|
- context:
|
|
cluster: local-up-cluster
|
|
user: local-up-cluster
|
|
name: local-up-cluster
|
|
current-context: local-up-cluster
|
|
EOF
|
|
|
|
# flatten the kubeconfig files to make them self contained
|
|
username=$(whoami)
|
|
${sudo} /usr/bin/env bash -e <<EOF
|
|
$(kube::util::find-binary kubectl) --kubeconfig="${dest_dir}/${client_id}.kubeconfig" config view --minify --flatten > "/tmp/${client_id}.kubeconfig"
|
|
mv -f "/tmp/${client_id}.kubeconfig" "${dest_dir}/${client_id}.kubeconfig"
|
|
chown ${username} "${dest_dir}/${client_id}.kubeconfig"
|
|
EOF
|
|
}
|
|
|
|
# list_staging_repos outputs a sorted list of repos in staging/src/k8s.io
|
|
# each entry will just be the $repo portion of staging/src/k8s.io/$repo/...
|
|
# $KUBE_ROOT must be set.
|
|
function kube::util::list_staging_repos() {
|
|
(
|
|
cd "${KUBE_ROOT}/staging/src/k8s.io" && \
|
|
find . -mindepth 1 -maxdepth 1 -type d | cut -c 3- | sort
|
|
)
|
|
}
|
|
|
|
|
|
# Determines if docker can be run, failures may simply require that the user be added to the docker group.
|
|
function kube::util::ensure_docker_daemon_connectivity {
|
|
IFS=" " read -ra DOCKER <<< "${DOCKER_OPTS}"
|
|
# Expand ${DOCKER[@]} only if it's not unset. This is to work around
|
|
# Bash 3 issue with unbound variable.
|
|
DOCKER=(docker ${DOCKER[@]:+"${DOCKER[@]}"})
|
|
if ! "${DOCKER[@]}" info > /dev/null 2>&1 ; then
|
|
cat <<'EOF' >&2
|
|
Can't connect to 'docker' daemon. please fix and retry.
|
|
|
|
Possible causes:
|
|
- Docker Daemon not started
|
|
- Linux: confirm via your init system
|
|
- macOS w/ Docker for Mac: Check the menu bar and start the Docker application
|
|
- DOCKER_HOST hasn't been set or is set incorrectly
|
|
- Linux: domain socket is used, DOCKER_* should be unset. In Bash run `unset ${!DOCKER_*}`
|
|
- macOS w/ Docker for Mac: domain socket is used, DOCKER_* should be unset. In Bash run `unset ${!DOCKER_*}`
|
|
- Other things to check:
|
|
- Linux: User isn't in 'docker' group. Add and relogin.
|
|
- Something like 'sudo usermod -a -G docker ${USER}'
|
|
- RHEL7 bug and workaround: https://bugzilla.redhat.com/show_bug.cgi?id=1119282#c8
|
|
EOF
|
|
return 1
|
|
fi
|
|
}
|
|
|
|
# Wait for background jobs to finish. Return with
|
|
# an error status if any of the jobs failed.
|
|
kube::util::wait-for-jobs() {
|
|
local fail=0
|
|
local job
|
|
for job in $(jobs -p); do
|
|
wait "${job}" || fail=$((fail + 1))
|
|
done
|
|
return ${fail}
|
|
}
|
|
|
|
# kube::util::join <delim> <list...>
|
|
# Concatenates the list elements with the delimiter passed as first parameter
|
|
#
|
|
# Ex: kube::util::join , a b c
|
|
# -> a,b,c
|
|
function kube::util::join {
|
|
local IFS="$1"
|
|
shift
|
|
echo "$*"
|
|
}
|
|
|
|
# Downloads cfssl/cfssljson into $1 directory if they do not already exist in PATH
|
|
#
|
|
# Assumed vars:
|
|
# $1 (cfssl directory) (optional)
|
|
#
|
|
# Sets:
|
|
# CFSSL_BIN: The path of the installed cfssl binary
|
|
# CFSSLJSON_BIN: The path of the installed cfssljson binary
|
|
#
|
|
function kube::util::ensure-cfssl {
|
|
if command -v cfssl &>/dev/null && command -v cfssljson &>/dev/null; then
|
|
CFSSL_BIN=$(command -v cfssl)
|
|
CFSSLJSON_BIN=$(command -v cfssljson)
|
|
return 0
|
|
fi
|
|
|
|
host_arch=$(kube::util::host_arch)
|
|
|
|
if [[ "${host_arch}" != "amd64" ]]; then
|
|
echo "Cannot download cfssl on non-amd64 hosts and cfssl does not appear to be installed."
|
|
echo "Please install cfssl and cfssljson and verify they are in \$PATH."
|
|
echo "Hint: export PATH=\$PATH:\$GOPATH/bin; go get -u github.com/cloudflare/cfssl/cmd/..."
|
|
exit 1
|
|
fi
|
|
|
|
# Create a temp dir for cfssl if no directory was given
|
|
local cfssldir=${1:-}
|
|
if [[ -z "${cfssldir}" ]]; then
|
|
kube::util::ensure-temp-dir
|
|
cfssldir="${KUBE_TEMP}/cfssl"
|
|
fi
|
|
|
|
mkdir -p "${cfssldir}"
|
|
pushd "${cfssldir}" > /dev/null || return 1
|
|
|
|
echo "Unable to successfully run 'cfssl' from ${PATH}; downloading instead..."
|
|
kernel=$(uname -s)
|
|
case "${kernel}" in
|
|
Linux)
|
|
curl --retry 10 -L -o cfssl https://github.com/cloudflare/cfssl/releases/download/v1.5.0/cfssl_1.5.0_linux_amd64
|
|
curl --retry 10 -L -o cfssljson https://github.com/cloudflare/cfssl/releases/download/v1.5.0/cfssljson_1.5.0_linux_amd64
|
|
;;
|
|
Darwin)
|
|
curl --retry 10 -L -o cfssl https://github.com/cloudflare/cfssl/releases/download/v1.5.0/cfssl_1.5.0_darwin_amd64
|
|
curl --retry 10 -L -o cfssljson https://github.com/cloudflare/cfssl/releases/download/v1.5.0/cfssljson_1.5.0_darwin_amd64
|
|
;;
|
|
*)
|
|
echo "Unknown, unsupported platform: ${kernel}." >&2
|
|
echo "Supported platforms: Linux, Darwin." >&2
|
|
exit 2
|
|
esac
|
|
|
|
chmod +x cfssl || true
|
|
chmod +x cfssljson || true
|
|
|
|
CFSSL_BIN="${cfssldir}/cfssl"
|
|
CFSSLJSON_BIN="${cfssldir}/cfssljson"
|
|
if [[ ! -x ${CFSSL_BIN} || ! -x ${CFSSLJSON_BIN} ]]; then
|
|
echo "Failed to download 'cfssl'. Please install cfssl and cfssljson and verify they are in \$PATH."
|
|
echo "Hint: export PATH=\$PATH:\$GOPATH/bin; go get -u github.com/cloudflare/cfssl/cmd/..."
|
|
exit 1
|
|
fi
|
|
popd > /dev/null || return 1
|
|
}
|
|
|
|
# kube::util::ensure_dockerized
|
|
# Confirms that the script is being run inside a kube-build image
|
|
#
|
|
function kube::util::ensure_dockerized {
|
|
if [[ -f /kube-build-image ]]; then
|
|
return 0
|
|
else
|
|
echo "ERROR: This script is designed to be run inside a kube-build container"
|
|
exit 1
|
|
fi
|
|
}
|
|
|
|
# kube::util::ensure-bash-version
|
|
# Check if we are using a supported bash version
|
|
#
|
|
function kube::util::ensure-bash-version {
|
|
# shellcheck disable=SC2004
|
|
if ((${BASH_VERSINFO[0]}<4)) || ( ((${BASH_VERSINFO[0]}==4)) && ((${BASH_VERSINFO[1]}<2)) ); then
|
|
echo "ERROR: This script requires a minimum bash version of 4.2, but got version of ${BASH_VERSINFO[0]}.${BASH_VERSINFO[1]}"
|
|
if [ "$(uname)" = 'Darwin' ]; then
|
|
echo "On macOS with homebrew 'brew install bash' is sufficient."
|
|
fi
|
|
exit 1
|
|
fi
|
|
}
|
|
|
|
# kube::util::ensure-gnu-sed
|
|
# Determines which sed binary is gnu-sed on linux/darwin
|
|
#
|
|
# Sets:
|
|
# SED: The name of the gnu-sed binary
|
|
#
|
|
function kube::util::ensure-gnu-sed {
|
|
# NOTE: the echo below is a workaround to ensure sed is executed before the grep.
|
|
# see: https://github.com/kubernetes/kubernetes/issues/87251
|
|
sed_help="$(LANG=C sed --help 2>&1 || true)"
|
|
if echo "${sed_help}" | grep -q "GNU\|BusyBox"; then
|
|
SED="sed"
|
|
elif command -v gsed &>/dev/null; then
|
|
SED="gsed"
|
|
else
|
|
kube::log::error "Failed to find GNU sed as sed or gsed. If you are on Mac: brew install gnu-sed." >&2
|
|
return 1
|
|
fi
|
|
kube::util::sourced_variable "${SED}"
|
|
}
|
|
|
|
# kube::util::check-file-in-alphabetical-order <file>
|
|
# Check that the file is in alphabetical order
|
|
#
|
|
function kube::util::check-file-in-alphabetical-order {
|
|
local failure_file="$1"
|
|
if ! diff -u "${failure_file}" <(LC_ALL=C sort "${failure_file}"); then
|
|
{
|
|
echo
|
|
echo "${failure_file} is not in alphabetical order. Please sort it:"
|
|
echo
|
|
echo " LC_ALL=C sort -o ${failure_file} ${failure_file}"
|
|
echo
|
|
} >&2
|
|
false
|
|
fi
|
|
}
|
|
|
|
# kube::util::require-jq
|
|
# Checks whether jq is installed.
|
|
function kube::util::require-jq {
|
|
if ! command -v jq &>/dev/null; then
|
|
kube::log::error "jq not found. Please install."
|
|
return 1
|
|
fi
|
|
}
|
|
|
|
# outputs md5 hash of $1, works on macOS and Linux
|
|
function kube::util::md5() {
|
|
if which md5 >/dev/null 2>&1; then
|
|
md5 -q "$1"
|
|
else
|
|
md5sum "$1" | awk '{ print $1 }'
|
|
fi
|
|
}
|
|
|
|
# kube::util::read-array
|
|
# Reads in stdin and adds it line by line to the array provided. This can be
|
|
# used instead of "mapfile -t", and is bash 3 compatible.
|
|
#
|
|
# Assumed vars:
|
|
# $1 (name of array to create/modify)
|
|
#
|
|
# Example usage:
|
|
# kube::util::read-array files < <(ls -1)
|
|
#
|
|
function kube::util::read-array {
|
|
local i=0
|
|
unset -v "$1"
|
|
while IFS= read -r "$1[i++]"; do :; done
|
|
eval "[[ \${$1[--i]} ]]" || unset "$1[i]" # ensures last element isn't empty
|
|
}
|
|
|
|
# Some useful colors.
|
|
if [[ -z "${color_start-}" ]]; then
|
|
declare -r color_start="\033["
|
|
declare -r color_red="${color_start}0;31m"
|
|
declare -r color_yellow="${color_start}0;33m"
|
|
declare -r color_green="${color_start}0;32m"
|
|
declare -r color_blue="${color_start}1;34m"
|
|
declare -r color_cyan="${color_start}1;36m"
|
|
declare -r color_norm="${color_start}0m"
|
|
|
|
kube::util::sourced_variable "${color_start}"
|
|
kube::util::sourced_variable "${color_red}"
|
|
kube::util::sourced_variable "${color_yellow}"
|
|
kube::util::sourced_variable "${color_green}"
|
|
kube::util::sourced_variable "${color_blue}"
|
|
kube::util::sourced_variable "${color_cyan}"
|
|
kube::util::sourced_variable "${color_norm}"
|
|
fi
|
|
|
|
# ex: ts=2 sw=2 et filetype=sh
|