mirror of
https://github.com/ceph/ceph-csi.git
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503 lines
16 KiB
Bash
Executable File
503 lines
16 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Copyright 2017 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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# Common utilities for kube-up/kube-down
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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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KUBE_ROOT=$(cd $(dirname "${BASH_SOURCE}")/.. && pwd)
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DEFAULT_KUBECONFIG="${HOME:-.}/.kube/config"
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source "${KUBE_ROOT}/hack/lib/util.sh"
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# KUBE_RELEASE_VERSION_REGEX matches things like "v1.2.3" or "v1.2.3-alpha.4"
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#
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# NOTE This must match the version_regex in build/common.sh
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# kube::release::parse_and_validate_release_version()
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KUBE_RELEASE_VERSION_REGEX="^v(0|[1-9][0-9]*)\\.(0|[1-9][0-9]*)\\.(0|[1-9][0-9]*)(-([a-zA-Z0-9]+)\\.(0|[1-9][0-9]*))?$"
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KUBE_RELEASE_VERSION_DASHED_REGEX="v(0|[1-9][0-9]*)-(0|[1-9][0-9]*)-(0|[1-9][0-9]*)(-([a-zA-Z0-9]+)-(0|[1-9][0-9]*))?"
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# KUBE_CI_VERSION_REGEX matches things like "v1.2.3-alpha.4.56+abcdefg" This
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#
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# NOTE This must match the version_regex in build/common.sh
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# kube::release::parse_and_validate_ci_version()
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KUBE_CI_VERSION_REGEX="^v(0|[1-9][0-9]*)\\.(0|[1-9][0-9]*)\\.(0|[1-9][0-9]*)-([a-zA-Z0-9]+)\\.(0|[1-9][0-9]*)(\\.(0|[1-9][0-9]*)\\+[-0-9a-z]*)?$"
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KUBE_CI_VERSION_DASHED_REGEX="^v(0|[1-9][0-9]*)-(0|[1-9][0-9]*)-(0|[1-9][0-9]*)-([a-zA-Z0-9]+)-(0|[1-9][0-9]*)(-(0|[1-9][0-9]*)\\+[-0-9a-z]*)?"
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# Generate kubeconfig data for the created cluster.
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# Assumed vars:
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# KUBE_USER
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# KUBE_PASSWORD
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# KUBE_MASTER_IP
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# KUBECONFIG
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# CONTEXT
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#
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# If the apiserver supports bearer auth, also provide:
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# KUBE_BEARER_TOKEN
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#
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# If the kubeconfig context being created should NOT be set as the current context
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# SECONDARY_KUBECONFIG=true
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#
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# To explicitly name the context being created, use OVERRIDE_CONTEXT
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#
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# The following can be omitted for --insecure-skip-tls-verify
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# KUBE_CERT
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# KUBE_KEY
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# CA_CERT
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function create-kubeconfig() {
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KUBECONFIG=${KUBECONFIG:-$DEFAULT_KUBECONFIG}
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local kubectl="${KUBE_ROOT}/cluster/kubectl.sh"
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SECONDARY_KUBECONFIG=${SECONDARY_KUBECONFIG:-}
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OVERRIDE_CONTEXT=${OVERRIDE_CONTEXT:-}
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if [[ "$OVERRIDE_CONTEXT" != "" ]];then
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CONTEXT=$OVERRIDE_CONTEXT
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fi
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# KUBECONFIG determines the file we write to, but it may not exist yet
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OLD_IFS=$IFS
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IFS=':'
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for cfg in ${KUBECONFIG} ; do
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if [[ ! -e "${cfg}" ]]; then
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mkdir -p "$(dirname "${cfg}")"
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touch "${cfg}"
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fi
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done
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IFS=$OLD_IFS
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local cluster_args=(
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"--server=${KUBE_SERVER:-https://${KUBE_MASTER_IP}}"
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)
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if [[ -z "${CA_CERT:-}" ]]; then
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cluster_args+=("--insecure-skip-tls-verify=true")
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else
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cluster_args+=(
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"--certificate-authority=${CA_CERT}"
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"--embed-certs=true"
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)
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fi
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local user_args=()
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if [[ ! -z "${KUBE_BEARER_TOKEN:-}" ]]; then
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user_args+=(
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"--token=${KUBE_BEARER_TOKEN}"
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)
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elif [[ ! -z "${KUBE_USER:-}" && ! -z "${KUBE_PASSWORD:-}" ]]; then
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user_args+=(
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"--username=${KUBE_USER}"
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"--password=${KUBE_PASSWORD}"
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)
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fi
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if [[ ! -z "${KUBE_CERT:-}" && ! -z "${KUBE_KEY:-}" ]]; then
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user_args+=(
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"--client-certificate=${KUBE_CERT}"
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"--client-key=${KUBE_KEY}"
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"--embed-certs=true"
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)
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fi
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KUBECONFIG="${KUBECONFIG}" "${kubectl}" config set-cluster "${CONTEXT}" "${cluster_args[@]}"
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if [[ -n "${user_args[@]:-}" ]]; then
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KUBECONFIG="${KUBECONFIG}" "${kubectl}" config set-credentials "${CONTEXT}" "${user_args[@]}"
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fi
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KUBECONFIG="${KUBECONFIG}" "${kubectl}" config set-context "${CONTEXT}" --cluster="${CONTEXT}" --user="${CONTEXT}"
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if [[ "${SECONDARY_KUBECONFIG}" != "true" ]];then
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KUBECONFIG="${KUBECONFIG}" "${kubectl}" config use-context "${CONTEXT}" --cluster="${CONTEXT}"
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fi
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# If we have a bearer token, also create a credential entry with basic auth
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# so that it is easy to discover the basic auth password for your cluster
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# to use in a web browser.
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if [[ ! -z "${KUBE_BEARER_TOKEN:-}" && ! -z "${KUBE_USER:-}" && ! -z "${KUBE_PASSWORD:-}" ]]; then
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KUBECONFIG="${KUBECONFIG}" "${kubectl}" config set-credentials "${CONTEXT}-basic-auth" "--username=${KUBE_USER}" "--password=${KUBE_PASSWORD}"
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fi
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echo "Wrote config for ${CONTEXT} to ${KUBECONFIG}"
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}
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# Clear kubeconfig data for a context
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# Assumed vars:
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# KUBECONFIG
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# CONTEXT
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#
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# To explicitly name the context being removed, use OVERRIDE_CONTEXT
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function clear-kubeconfig() {
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export KUBECONFIG=${KUBECONFIG:-$DEFAULT_KUBECONFIG}
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OVERRIDE_CONTEXT=${OVERRIDE_CONTEXT:-}
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if [[ "$OVERRIDE_CONTEXT" != "" ]];then
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CONTEXT=$OVERRIDE_CONTEXT
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fi
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local kubectl="${KUBE_ROOT}/cluster/kubectl.sh"
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# Unset the current-context before we delete it, as otherwise kubectl errors.
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local cc=$("${kubectl}" config view -o jsonpath='{.current-context}')
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if [[ "${cc}" == "${CONTEXT}" ]]; then
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"${kubectl}" config unset current-context
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fi
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"${kubectl}" config unset "clusters.${CONTEXT}"
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"${kubectl}" config unset "users.${CONTEXT}"
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"${kubectl}" config unset "users.${CONTEXT}-basic-auth"
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"${kubectl}" config unset "contexts.${CONTEXT}"
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echo "Cleared config for ${CONTEXT} from ${KUBECONFIG}"
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}
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# Gets username, password for the current-context in kubeconfig, if they exist.
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# Assumed vars:
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# KUBECONFIG # if unset, defaults to global
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# KUBE_CONTEXT # if unset, defaults to current-context
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#
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# Vars set:
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# KUBE_USER
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# KUBE_PASSWORD
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#
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# KUBE_USER,KUBE_PASSWORD will be empty if no current-context is set, or
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# the current-context user does not exist or contain basicauth entries.
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function get-kubeconfig-basicauth() {
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export KUBECONFIG=${KUBECONFIG:-$DEFAULT_KUBECONFIG}
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local cc=$("${KUBE_ROOT}/cluster/kubectl.sh" config view -o jsonpath="{.current-context}")
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if [[ ! -z "${KUBE_CONTEXT:-}" ]]; then
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cc="${KUBE_CONTEXT}"
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fi
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local user=$("${KUBE_ROOT}/cluster/kubectl.sh" config view -o jsonpath="{.contexts[?(@.name == \"${cc}\")].context.user}")
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get-kubeconfig-user-basicauth "${user}"
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if [[ -z "${KUBE_USER:-}" || -z "${KUBE_PASSWORD:-}" ]]; then
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# kube-up stores username/password in a an additional kubeconfig section
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# suffixed with "-basic-auth". Cloudproviders like GKE store in directly
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# in the top level section along with the other credential information.
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# TODO: Handle this uniformly, either get rid of "basic-auth" or
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# consolidate its usage into a function across scripts in cluster/
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get-kubeconfig-user-basicauth "${user}-basic-auth"
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fi
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}
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# Sets KUBE_USER and KUBE_PASSWORD to the username and password specified in
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# the kubeconfig section corresponding to $1.
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#
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# Args:
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# $1 kubeconfig section to look for basic auth (eg: user or user-basic-auth).
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# Assumed vars:
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# KUBE_ROOT
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# Vars set:
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# KUBE_USER
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# KUBE_PASSWORD
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function get-kubeconfig-user-basicauth() {
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KUBE_USER=$("${KUBE_ROOT}/cluster/kubectl.sh" config view -o jsonpath="{.users[?(@.name == \"$1\")].user.username}")
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KUBE_PASSWORD=$("${KUBE_ROOT}/cluster/kubectl.sh" config view -o jsonpath="{.users[?(@.name == \"$1\")].user.password}")
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}
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# Generate basic auth user and password.
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# Vars set:
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# KUBE_USER
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# KUBE_PASSWORD
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function gen-kube-basicauth() {
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KUBE_USER=admin
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KUBE_PASSWORD=$(python -c 'import string,random; print("".join(random.SystemRandom().choice(string.ascii_letters + string.digits) for _ in range(16)))')
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}
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# Get the bearer token for the current-context in kubeconfig if one exists.
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# Assumed vars:
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# KUBECONFIG # if unset, defaults to global
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# KUBE_CONTEXT # if unset, defaults to current-context
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#
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# Vars set:
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# KUBE_BEARER_TOKEN
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#
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# KUBE_BEARER_TOKEN will be empty if no current-context is set, or the
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# current-context user does not exist or contain a bearer token entry.
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function get-kubeconfig-bearertoken() {
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export KUBECONFIG=${KUBECONFIG:-$DEFAULT_KUBECONFIG}
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local cc=$("${KUBE_ROOT}/cluster/kubectl.sh" config view -o jsonpath="{.current-context}")
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if [[ ! -z "${KUBE_CONTEXT:-}" ]]; then
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cc="${KUBE_CONTEXT}"
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fi
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local user=$("${KUBE_ROOT}/cluster/kubectl.sh" config view -o jsonpath="{.contexts[?(@.name == \"${cc}\")].context.user}")
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KUBE_BEARER_TOKEN=$("${KUBE_ROOT}/cluster/kubectl.sh" config view -o jsonpath="{.users[?(@.name == \"${user}\")].user.token}")
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}
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# Generate bearer token.
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#
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# Vars set:
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# KUBE_BEARER_TOKEN
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function gen-kube-bearertoken() {
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KUBE_BEARER_TOKEN=$(dd if=/dev/urandom bs=128 count=1 2>/dev/null | base64 | tr -d "=+/" | dd bs=32 count=1 2>/dev/null)
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}
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function load-or-gen-kube-basicauth() {
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if [[ ! -z "${KUBE_CONTEXT:-}" ]]; then
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get-kubeconfig-basicauth
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fi
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if [[ -z "${KUBE_USER:-}" || -z "${KUBE_PASSWORD:-}" ]]; then
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gen-kube-basicauth
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fi
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# Make sure they don't contain any funny characters.
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if ! [[ "${KUBE_USER}" =~ ^[-._@a-zA-Z0-9]+$ ]]; then
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echo "Bad KUBE_USER string."
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exit 1
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fi
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if ! [[ "${KUBE_PASSWORD}" =~ ^[-._@#%/a-zA-Z0-9]+$ ]]; then
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echo "Bad KUBE_PASSWORD string."
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exit 1
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fi
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}
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# Sets KUBE_VERSION variable to the proper version number (e.g. "v1.0.6",
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# "v1.2.0-alpha.1.881+376438b69c7612") or a version' publication of the form
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# <path>/<version> (e.g. "release/stable",' "ci/latest-1").
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#
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# See the docs on getting builds for more information about version
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# publication.
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#
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# Args:
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# $1 version string from command line
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# Vars set:
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# KUBE_VERSION
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function set_binary_version() {
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if [[ "${1}" =~ "/" ]]; then
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IFS='/' read -a path <<< "${1}"
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if [[ "${path[0]}" == "release" ]]; then
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KUBE_VERSION=$(gsutil cat "gs://kubernetes-release/${1}.txt")
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else
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KUBE_VERSION=$(gsutil cat "gs://kubernetes-release-dev/${1}.txt")
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fi
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else
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KUBE_VERSION=${1}
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fi
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}
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# Search for the specified tarball in the various known output locations,
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# echoing the location if found.
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#
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# Assumed vars:
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# KUBE_ROOT
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#
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# Args:
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# $1 name of tarball to search for
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function find-tar() {
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local -r tarball=$1
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locations=(
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"${KUBE_ROOT}/server/${tarball}"
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"${KUBE_ROOT}/_output/release-tars/${tarball}"
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"${KUBE_ROOT}/bazel-bin/build/release-tars/${tarball}"
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)
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location=$( (ls -t "${locations[@]}" 2>/dev/null || true) | head -1 )
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if [[ ! -f "${location}" ]]; then
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echo "!!! Cannot find ${tarball}" >&2
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exit 1
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fi
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echo "${location}"
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}
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# Verify and find the various tar files that we are going to use on the server.
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#
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# Assumed vars:
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# KUBE_ROOT
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# Vars set:
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# SERVER_BINARY_TAR
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# KUBE_MANIFESTS_TAR
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function find-release-tars() {
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SERVER_BINARY_TAR=$(find-tar kubernetes-server-linux-amd64.tar.gz)
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# This tarball is used by GCI, Ubuntu Trusty, and Container Linux.
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KUBE_MANIFESTS_TAR=
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if [[ "${MASTER_OS_DISTRIBUTION:-}" == "trusty" || "${MASTER_OS_DISTRIBUTION:-}" == "gci" || "${MASTER_OS_DISTRIBUTION:-}" == "ubuntu" ]] || \
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[[ "${NODE_OS_DISTRIBUTION:-}" == "trusty" || "${NODE_OS_DISTRIBUTION:-}" == "gci" || "${NODE_OS_DISTRIBUTION:-}" == "ubuntu" || "${NODE_OS_DISTRIBUTION:-}" == "custom" ]] ; then
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KUBE_MANIFESTS_TAR=$(find-tar kubernetes-manifests.tar.gz)
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fi
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}
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# Run the cfssl command to generates certificate files for etcd service, the
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# certificate files will save in $1 directory.
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#
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# Optional vars:
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# GEN_ETCD_CA_CERT (CA cert encode with base64 and ZIP compression)
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# GEN_ETCD_CA_KEY (CA key encode with base64)
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#
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# If GEN_ETCD_CA_CERT or GEN_ETCD_CA_KEY is not specified, it will generates certs for CA.
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#
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# Args:
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# $1 (the directory that certificate files to save)
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# $2 (the ip of etcd member)
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# $3 (the type of etcd certificates, must be one of client, server, peer)
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# $4 (the prefix of the certificate filename, default is $3)
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function generate-etcd-cert() {
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local cert_dir=${1}
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local member_ip=${2}
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local type_cert=${3}
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local prefix=${4:-"${type_cert}"}
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local GEN_ETCD_CA_CERT=${GEN_ETCD_CA_CERT:-}
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local GEN_ETCD_CA_KEY=${GEN_ETCD_CA_KEY:-}
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mkdir -p "${cert_dir}"
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pushd "${cert_dir}"
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kube::util::ensure-cfssl .
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if [ ! -r "ca-config.json" ]; then
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cat >ca-config.json <<EOF
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{
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"signing": {
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"default": {
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"expiry": "43800h"
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},
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"profiles": {
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"server": {
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"expiry": "43800h",
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"usages": [
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"signing",
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"key encipherment",
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"server auth"
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]
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},
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"client": {
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"expiry": "43800h",
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"usages": [
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"signing",
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"key encipherment",
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"client auth"
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]
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},
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"peer": {
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"expiry": "43800h",
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"usages": [
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"signing",
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"key encipherment",
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"server auth",
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"client auth"
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]
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}
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}
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}
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}
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EOF
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fi
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if [ ! -r "ca-csr.json" ]; then
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cat >ca-csr.json <<EOF
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{
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"CN": "Kubernetes",
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"key": {
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"algo": "ecdsa",
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"size": 256
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},
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"names": [
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{
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"C": "US",
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"L": "CA",
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"O": "kubernetes.io"
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}
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]
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}
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EOF
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fi
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if [[ -n "${GEN_ETCD_CA_CERT}" && -n "${GEN_ETCD_CA_KEY}" ]]; then
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echo "${ca_cert}" | base64 --decode | gunzip > ca.pem
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echo "${ca_key}" | base64 --decode > ca-key.pem
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fi
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if [[ ! -r "ca.pem" || ! -r "ca-key.pem" ]]; then
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${CFSSL_BIN} gencert -initca ca-csr.json | ${CFSSLJSON_BIN} -bare ca -
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fi
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case "${type_cert}" in
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client)
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echo "Generate client certificates..."
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echo '{"CN":"client","hosts":["*"],"key":{"algo":"ecdsa","size":256}}' \
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| ${CFSSL_BIN} gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=client - \
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| ${CFSSLJSON_BIN} -bare "${prefix}"
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;;
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server)
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echo "Generate server certificates..."
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echo '{"CN":"'${member_ip}'","hosts":[""],"key":{"algo":"ecdsa","size":256}}' \
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| ${CFSSL_BIN} gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=server -hostname="${member_ip},127.0.0.1" - \
|
|
| ${CFSSLJSON_BIN} -bare "${prefix}"
|
|
;;
|
|
peer)
|
|
echo "Generate peer certificates..."
|
|
echo '{"CN":"'${member_ip}'","hosts":[""],"key":{"algo":"ecdsa","size":256}}' \
|
|
| ${CFSSL_BIN} gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=peer -hostname="${member_ip},127.0.0.1" - \
|
|
| ${CFSSLJSON_BIN} -bare "${prefix}"
|
|
;;
|
|
*)
|
|
echo "Unknow, unsupported etcd certs type: ${type_cert}" >&2
|
|
echo "Supported type: client, server, peer" >&2
|
|
exit 2
|
|
esac
|
|
|
|
popd
|
|
}
|
|
|
|
# Check whether required binaries exist, prompting to download
|
|
# if missing.
|
|
# If KUBERNETES_SKIP_CONFIRM is set to y, we'll automatically download binaries
|
|
# without prompting.
|
|
function verify-kube-binaries() {
|
|
if ! "${KUBE_ROOT}/cluster/kubectl.sh" version --client >&/dev/null; then
|
|
echo "!!! kubectl appears to be broken or missing"
|
|
download-release-binaries
|
|
fi
|
|
}
|
|
|
|
# Check whether required release artifacts exist, prompting to download
|
|
# if missing.
|
|
# If KUBERNETES_SKIP_CONFIRM is set to y, we'll automatically download binaries
|
|
# without prompting.
|
|
function verify-release-tars() {
|
|
if ! $(find-release-tars); then
|
|
download-release-binaries
|
|
fi
|
|
}
|
|
|
|
# Download release artifacts.
|
|
function download-release-binaries() {
|
|
get_binaries_script="${KUBE_ROOT}/cluster/get-kube-binaries.sh"
|
|
local resp="y"
|
|
if [[ ! "${KUBERNETES_SKIP_CONFIRM:-n}" =~ ^[yY]$ ]]; then
|
|
echo "Required release artifacts appear to be missing. Do you wish to download them? [Y/n]"
|
|
read resp
|
|
fi
|
|
if [[ "${resp}" =~ ^[nN]$ ]]; then
|
|
echo "You must download release artifacts to continue. You can use "
|
|
echo " ${get_binaries_script}"
|
|
echo "to do this for your automatically."
|
|
exit 1
|
|
fi
|
|
"${get_binaries_script}"
|
|
}
|
|
|
|
# Run pushd without stack output
|
|
function pushd() {
|
|
command pushd $@ > /dev/null
|
|
}
|
|
|
|
# Run popd without stack output
|
|
function popd() {
|
|
command popd $@ > /dev/null
|
|
}
|