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common.sh
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common.sh
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#!/bin/bash
# Copyright 2017 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Common utilites for kube-up/kube-down
set -o errexit
set -o nounset
set -o pipefail
KUBE_ROOT=$(cd $(dirname "${BASH_SOURCE}")/.. && pwd)
DEFAULT_KUBECONFIG="${HOME:-.}/.kube/config"
source "${KUBE_ROOT}/hack/lib/util.sh"
source "${KUBE_ROOT}/cluster/lib/logging.sh"
# KUBE_RELEASE_VERSION_REGEX matches things like "v1.2.3" or "v1.2.3-alpha.4"
#
# NOTE This must match the version_regex in build/common.sh
# kube::release::parse_and_validate_release_version()
KUBE_RELEASE_VERSION_REGEX="^v(0|[1-9][0-9]*)\\.(0|[1-9][0-9]*)\\.(0|[1-9][0-9]*)(-([a-zA-Z0-9]+)\\.(0|[1-9][0-9]*))?$"
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]*))?"
# KUBE_CI_VERSION_REGEX matches things like "v1.2.3-alpha.4.56+abcdefg" This
#
# NOTE This must match the version_regex in build/common.sh
# kube::release::parse_and_validate_ci_version()
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]*)?$"
KUBE_CI_VERSION_DASHED_REGEX="^v(0|[1-9][0-9]*)-(0|[1-9][0-9]*)-(0|[1-9][0-9]*)-([a-zA-Z0-9]+)-(0|[1-9][0-9]*)(-(0|[1-9][0-9]*)\\+[-0-9a-z]*)?"
# Generate kubeconfig data for the created cluster.
# Assumed vars:
# KUBE_USER
# KUBE_PASSWORD
# KUBE_MASTER_IP
# KUBECONFIG
# CONTEXT
#
# If the apiserver supports bearer auth, also provide:
# KUBE_BEARER_TOKEN
#
# If the kubeconfig context being created should NOT be set as the current context
# SECONDARY_KUBECONFIG=true
#
# To explicitly name the context being created, use OVERRIDE_CONTEXT
#
# The following can be omitted for --insecure-skip-tls-verify
# KUBE_CERT
# KUBE_KEY
# CA_CERT
function create-kubeconfig() {
KUBECONFIG=${KUBECONFIG:-$DEFAULT_KUBECONFIG}
local kubectl="${KUBE_ROOT}/cluster/kubectl.sh"
SECONDARY_KUBECONFIG=${SECONDARY_KUBECONFIG:-}
OVERRIDE_CONTEXT=${OVERRIDE_CONTEXT:-}
if [[ "$OVERRIDE_CONTEXT" != "" ]];then
CONTEXT=$OVERRIDE_CONTEXT
fi
# KUBECONFIG determines the file we write to, but it may not exist yet
OLD_IFS=$IFS
IFS=':'
for cfg in ${KUBECONFIG} ; do
if [[ ! -e "${cfg}" ]]; then
mkdir -p "$(dirname "${cfg}")"
touch "${cfg}"
fi
done
IFS=$OLD_IFS
local cluster_args=(
"--server=${KUBE_SERVER:-https://${KUBE_MASTER_IP}}"
)
if [[ -z "${CA_CERT:-}" ]]; then
cluster_args+=("--insecure-skip-tls-verify=true")
else
cluster_args+=(
"--certificate-authority=${CA_CERT}"
"--embed-certs=true"
)
fi
local user_args=()
if [[ ! -z "${KUBE_BEARER_TOKEN:-}" ]]; then
user_args+=(
"--token=${KUBE_BEARER_TOKEN}"
)
elif [[ ! -z "${KUBE_USER:-}" && ! -z "${KUBE_PASSWORD:-}" ]]; then
user_args+=(
"--username=${KUBE_USER}"
"--password=${KUBE_PASSWORD}"
)
fi
if [[ ! -z "${KUBE_CERT:-}" && ! -z "${KUBE_KEY:-}" ]]; then
user_args+=(
"--client-certificate=${KUBE_CERT}"
"--client-key=${KUBE_KEY}"
"--embed-certs=true"
)
fi
KUBECONFIG="${KUBECONFIG}" "${kubectl}" config set-cluster "${CONTEXT}" "${cluster_args[@]}"
if [[ -n "${user_args[@]:-}" ]]; then
KUBECONFIG="${KUBECONFIG}" "${kubectl}" config set-credentials "${CONTEXT}" "${user_args[@]}"
fi
KUBECONFIG="${KUBECONFIG}" "${kubectl}" config set-context "${CONTEXT}" --cluster="${CONTEXT}" --user="${CONTEXT}"
if [[ "${SECONDARY_KUBECONFIG}" != "true" ]];then
KUBECONFIG="${KUBECONFIG}" "${kubectl}" config use-context "${CONTEXT}" --cluster="${CONTEXT}"
fi
# If we have a bearer token, also create a credential entry with basic auth
# so that it is easy to discover the basic auth password for your cluster
# to use in a web browser.
if [[ ! -z "${KUBE_BEARER_TOKEN:-}" && ! -z "${KUBE_USER:-}" && ! -z "${KUBE_PASSWORD:-}" ]]; then
KUBECONFIG="${KUBECONFIG}" "${kubectl}" config set-credentials "${CONTEXT}-basic-auth" "--username=${KUBE_USER}" "--password=${KUBE_PASSWORD}"
fi
echo "Wrote config for ${CONTEXT} to ${KUBECONFIG}"
}
# Clear kubeconfig data for a context
# Assumed vars:
# KUBECONFIG
# CONTEXT
#
# To explicitly name the context being removed, use OVERRIDE_CONTEXT
function clear-kubeconfig() {
export KUBECONFIG=${KUBECONFIG:-$DEFAULT_KUBECONFIG}
OVERRIDE_CONTEXT=${OVERRIDE_CONTEXT:-}
if [[ "$OVERRIDE_CONTEXT" != "" ]];then
CONTEXT=$OVERRIDE_CONTEXT
fi
local kubectl="${KUBE_ROOT}/cluster/kubectl.sh"
# Unset the current-context before we delete it, as otherwise kubectl errors.
local cc=$("${kubectl}" config view -o jsonpath='{.current-context}')
if [[ "${cc}" == "${CONTEXT}" ]]; then
"${kubectl}" config unset current-context
fi
"${kubectl}" config unset "clusters.${CONTEXT}"
"${kubectl}" config unset "users.${CONTEXT}"
"${kubectl}" config unset "users.${CONTEXT}-basic-auth"
"${kubectl}" config unset "contexts.${CONTEXT}"
echo "Cleared config for ${CONTEXT} from ${KUBECONFIG}"
}
function tear_down_alive_resources() {
local kubectl="${KUBE_ROOT}/cluster/kubectl.sh"
"${kubectl}" delete deployments --all || true
"${kubectl}" delete rc --all || true
"${kubectl}" delete pods --all || true
"${kubectl}" delete svc --all || true
"${kubectl}" delete pvc --all || true
}
# Gets username, password for the current-context in kubeconfig, if they exist.
# Assumed vars:
# KUBECONFIG # if unset, defaults to global
# KUBE_CONTEXT # if unset, defaults to current-context
#
# Vars set:
# KUBE_USER
# KUBE_PASSWORD
#
# KUBE_USER,KUBE_PASSWORD will be empty if no current-context is set, or
# the current-context user does not exist or contain basicauth entries.
function get-kubeconfig-basicauth() {
export KUBECONFIG=${KUBECONFIG:-$DEFAULT_KUBECONFIG}
local cc=$("${KUBE_ROOT}/cluster/kubectl.sh" config view -o jsonpath="{.current-context}")
if [[ ! -z "${KUBE_CONTEXT:-}" ]]; then
cc="${KUBE_CONTEXT}"
fi
local user=$("${KUBE_ROOT}/cluster/kubectl.sh" config view -o jsonpath="{.contexts[?(@.name == \"${cc}\")].context.user}")
get-kubeconfig-user-basicauth "${user}"
if [[ -z "${KUBE_USER:-}" || -z "${KUBE_PASSWORD:-}" ]]; then
# kube-up stores username/password in a an additional kubeconfig section
# suffixed with "-basic-auth". Cloudproviders like GKE store in directly
# in the top level section along with the other credential information.
# TODO: Handle this uniformly, either get rid of "basic-auth" or
# consolidate its usage into a function across scripts in cluster/
get-kubeconfig-user-basicauth "${user}-basic-auth"
fi
}
# Sets KUBE_USER and KUBE_PASSWORD to the username and password specified in
# the kubeconfig section corresponding to $1.
#
# Args:
# $1 kubeconfig section to look for basic auth (eg: user or user-basic-auth).
# Assumed vars:
# KUBE_ROOT
# Vars set:
# KUBE_USER
# KUBE_PASSWORD
function get-kubeconfig-user-basicauth() {
KUBE_USER=$("${KUBE_ROOT}/cluster/kubectl.sh" config view -o jsonpath="{.users[?(@.name == \"$1\")].user.username}")
KUBE_PASSWORD=$("${KUBE_ROOT}/cluster/kubectl.sh" config view -o jsonpath="{.users[?(@.name == \"$1\")].user.password}")
}
# Generate basic auth user and password.
# Vars set:
# KUBE_USER
# KUBE_PASSWORD
function gen-kube-basicauth() {
KUBE_USER=admin
KUBE_PASSWORD=$(python -c 'import string,random; print("".join(random.SystemRandom().choice(string.ascii_letters + string.digits) for _ in range(16)))')
}
# Get the bearer token for the current-context in kubeconfig if one exists.
# Assumed vars:
# KUBECONFIG # if unset, defaults to global
# KUBE_CONTEXT # if unset, defaults to current-context
#
# Vars set:
# KUBE_BEARER_TOKEN
#
# KUBE_BEARER_TOKEN will be empty if no current-context is set, or the
# current-context user does not exist or contain a bearer token entry.
function get-kubeconfig-bearertoken() {
export KUBECONFIG=${KUBECONFIG:-$DEFAULT_KUBECONFIG}
local cc=$("${KUBE_ROOT}/cluster/kubectl.sh" config view -o jsonpath="{.current-context}")
if [[ ! -z "${KUBE_CONTEXT:-}" ]]; then
cc="${KUBE_CONTEXT}"
fi
local user=$("${KUBE_ROOT}/cluster/kubectl.sh" config view -o jsonpath="{.contexts[?(@.name == \"${cc}\")].context.user}")
KUBE_BEARER_TOKEN=$("${KUBE_ROOT}/cluster/kubectl.sh" config view -o jsonpath="{.users[?(@.name == \"${user}\")].user.token}")
}
# Generate bearer token.
#
# Vars set:
# KUBE_BEARER_TOKEN
function gen-kube-bearertoken() {
KUBE_BEARER_TOKEN=$(dd if=/dev/urandom bs=128 count=1 2>/dev/null | base64 | tr -d "=+/" | dd bs=32 count=1 2>/dev/null)
}
# Generate uid
# This function only works on systems with python. It generates a time based
# UID instead of a UUID because GCE has a name length limit.
#
# Vars set:
# KUBE_UID
function gen-uid {
KUBE_UID=$(python -c 'import uuid; print(uuid.uuid1().fields[0])')
}
function load-or-gen-kube-basicauth() {
if [[ ! -z "${KUBE_CONTEXT:-}" ]]; then
get-kubeconfig-basicauth
fi
if [[ -z "${KUBE_USER:-}" || -z "${KUBE_PASSWORD:-}" ]]; then
gen-kube-basicauth
fi
# Make sure they don't contain any funny characters.
if ! [[ "${KUBE_USER}" =~ ^[-._@a-zA-Z0-9]+$ ]]; then
echo "Bad KUBE_USER string."
exit 1
fi
if ! [[ "${KUBE_PASSWORD}" =~ ^[-._@#%/a-zA-Z0-9]+$ ]]; then
echo "Bad KUBE_PASSWORD string."
exit 1
fi
}
function load-or-gen-kube-bearertoken() {
if [[ ! -z "${KUBE_CONTEXT:-}" ]]; then
get-kubeconfig-bearertoken
fi
if [[ -z "${KUBE_BEARER_TOKEN:-}" ]]; then
gen-kube-bearertoken
fi
}
# Get the master IP for the current-context in kubeconfig if one exists.
#
# Assumed vars:
# KUBECONFIG # if unset, defaults to global
# KUBE_CONTEXT # if unset, defaults to current-context
#
# Vars set:
# KUBE_MASTER_URL
#
# KUBE_MASTER_URL will be empty if no current-context is set, or the
# current-context user does not exist or contain a server entry.
function detect-master-from-kubeconfig() {
export KUBECONFIG=${KUBECONFIG:-$DEFAULT_KUBECONFIG}
local cc=$("${KUBE_ROOT}/cluster/kubectl.sh" config view -o jsonpath="{.current-context}")
if [[ ! -z "${KUBE_CONTEXT:-}" ]]; then
cc="${KUBE_CONTEXT}"
fi
local cluster=$("${KUBE_ROOT}/cluster/kubectl.sh" config view -o jsonpath="{.contexts[?(@.name == \"${cc}\")].context.cluster}")
KUBE_MASTER_URL=$("${KUBE_ROOT}/cluster/kubectl.sh" config view -o jsonpath="{.clusters[?(@.name == \"${cluster}\")].cluster.server}")
}
# Sets KUBE_VERSION variable to the proper version number (e.g. "v1.0.6",
# "v1.2.0-alpha.1.881+376438b69c7612") or a version' publication of the form
# <path>/<version> (e.g. "release/stable",' "ci/latest-1").
#
# See the docs on getting builds for more information about version
# publication.
#
# Args:
# $1 version string from command line
# Vars set:
# KUBE_VERSION
function set_binary_version() {
if [[ "${1}" =~ "/" ]]; then
IFS='/' read -a path <<< "${1}"
if [[ "${path[0]}" == "release" ]]; then
KUBE_VERSION=$(gsutil cat "gs://kubernetes-release/${1}.txt")
else
KUBE_VERSION=$(gsutil cat "gs://kubernetes-release-dev/${1}.txt")
fi
else
KUBE_VERSION=${1}
fi
}
# Figure out which binary use on the server and assure it is available.
# If KUBE_VERSION is specified use binaries specified by it, otherwise
# use local dev binaries.
#
# Assumed vars:
# KUBE_VERSION
# KUBE_RELEASE_VERSION_REGEX
# KUBE_CI_VERSION_REGEX
# Vars set:
# KUBE_TAR_HASH
# SERVER_BINARY_TAR_URL
# SERVER_BINARY_TAR_HASH
# SALT_TAR_URL
# SALT_TAR_HASH
function tars_from_version() {
local sha1sum=""
if which sha1sum >/dev/null 2>&1; then
sha1sum="sha1sum"
else
sha1sum="shasum -a1"
fi
if [[ -z "${KUBE_VERSION-}" ]]; then
find-release-tars
upload-server-tars
elif [[ ${KUBE_VERSION} =~ ${KUBE_RELEASE_VERSION_REGEX} ]]; then
SERVER_BINARY_TAR_URL="https://storage.googleapis.com/kubernetes-release/release/${KUBE_VERSION}/kubernetes-server-linux-amd64.tar.gz"
SALT_TAR_URL="https://storage.googleapis.com/kubernetes-release/release/${KUBE_VERSION}/kubernetes-salt.tar.gz"
# TODO: Clean this up.
KUBE_MANIFESTS_TAR_URL="${SERVER_BINARY_TAR_URL/server-linux-amd64/manifests}"
KUBE_MANIFESTS_TAR_HASH=$(curl ${KUBE_MANIFESTS_TAR_URL} --silent --show-error | ${sha1sum} | awk '{print $1}')
elif [[ ${KUBE_VERSION} =~ ${KUBE_CI_VERSION_REGEX} ]]; then
SERVER_BINARY_TAR_URL="https://storage.googleapis.com/kubernetes-release-dev/ci/${KUBE_VERSION}/kubernetes-server-linux-amd64.tar.gz"
SALT_TAR_URL="https://storage.googleapis.com/kubernetes-release-dev/ci/${KUBE_VERSION}/kubernetes-salt.tar.gz"
# TODO: Clean this up.
KUBE_MANIFESTS_TAR_URL="${SERVER_BINARY_TAR_URL/server-linux-amd64/manifests}"
KUBE_MANIFESTS_TAR_HASH=$(curl ${KUBE_MANIFESTS_TAR_URL} --silent --show-error | ${sha1sum} | awk '{print $1}')
else
echo "Version doesn't match regexp" >&2
exit 1
fi
if ! SERVER_BINARY_TAR_HASH=$(curl -Ss --fail "${SERVER_BINARY_TAR_URL}.sha1"); then
echo "Failure trying to curl release .sha1"
fi
if ! SALT_TAR_HASH=$(curl -Ss --fail "${SALT_TAR_URL}.sha1"); then
echo "Failure trying to curl Salt tar .sha1"
fi
if ! curl -Ss --head "${SERVER_BINARY_TAR_URL}" >&/dev/null; then
echo "Can't find release at ${SERVER_BINARY_TAR_URL}" >&2
exit 1
fi
if ! curl -Ss --head "${SALT_TAR_URL}" >&/dev/null; then
echo "Can't find Salt tar at ${SALT_TAR_URL}" >&2
exit 1
fi
}
# Search for the specified tarball in the various known output locations,
# echoing the location if found.
#
# Assumed vars:
# KUBE_ROOT
#
# Args:
# $1 name of tarball to search for
function find-tar() {
local -r tarball=$1
locations=(
"${KUBE_ROOT}/server/${tarball}"
"${KUBE_ROOT}/_output/release-tars/${tarball}"
"${KUBE_ROOT}/bazel-bin/build/release-tars/${tarball}"
)
location=$( (ls -t "${locations[@]}" 2>/dev/null || true) | head -1 )
if [[ ! -f "${location}" ]]; then
echo "!!! Cannot find ${tarball}" >&2
exit 1
fi
echo "${location}"
}
# Verify and find the various tar files that we are going to use on the server.
#
# Assumed vars:
# KUBE_ROOT
# Vars set:
# SERVER_BINARY_TAR
# SALT_TAR
# KUBE_MANIFESTS_TAR
function find-release-tars() {
SERVER_BINARY_TAR=$(find-tar kubernetes-server-linux-amd64.tar.gz)
SALT_TAR=$(find-tar kubernetes-salt.tar.gz)
# This tarball is used by GCI, Ubuntu Trusty, and Container Linux.
KUBE_MANIFESTS_TAR=
if [[ "${MASTER_OS_DISTRIBUTION:-}" == "trusty" || "${MASTER_OS_DISTRIBUTION:-}" == "gci" || "${MASTER_OS_DISTRIBUTION:-}" == "container-linux" || "${MASTER_OS_DISTRIBUTION:-}" == "ubuntu" ]] || \
[[ "${NODE_OS_DISTRIBUTION:-}" == "trusty" || "${NODE_OS_DISTRIBUTION:-}" == "gci" || "${NODE_OS_DISTRIBUTION:-}" == "container-linux" || "${NODE_OS_DISTRIBUTION:-}" == "ubuntu" ]] ; then
KUBE_MANIFESTS_TAR=$(find-tar kubernetes-manifests.tar.gz)
fi
}
# Discover the git version of the current build package
#
# Assumed vars:
# KUBE_ROOT
# Vars set:
# KUBE_GIT_VERSION
function find-release-version() {
KUBE_GIT_VERSION=""
if [[ -f "${KUBE_ROOT}/version" ]]; then
KUBE_GIT_VERSION="$(cat ${KUBE_ROOT}/version)"
fi
if [[ -f "${KUBE_ROOT}/_output/release-stage/full/kubernetes/version" ]]; then
KUBE_GIT_VERSION="$(cat ${KUBE_ROOT}/_output/release-stage/full/kubernetes/version)"
fi
if [[ -z "${KUBE_GIT_VERSION}" ]]; then
echo "!!! Cannot find release version"
exit 1
fi
}
function stage-images() {
find-release-version
find-release-tars
KUBE_IMAGE_TAG="$(echo """${KUBE_GIT_VERSION}""" | sed 's/+/-/g')"
local docker_wrapped_binaries=(
"kube-apiserver"
"kube-controller-manager"
"kube-scheduler"
"kube-proxy"
)
local docker_cmd=("docker")
if [[ "${KUBE_DOCKER_REGISTRY}" == "gcr.io/"* ]]; then
local docker_push_cmd=("gcloud" "docker")
else
local docker_push_cmd=("${docker_cmd[@]}")
fi
local temp_dir="$(mktemp -d -t 'kube-server-XXXX')"
tar xzfv "${SERVER_BINARY_TAR}" -C "${temp_dir}" &> /dev/null
for binary in "${docker_wrapped_binaries[@]}"; do
local docker_tag="$(cat ${temp_dir}/kubernetes/server/bin/${binary}.docker_tag)"
(
"${docker_cmd[@]}" load -i "${temp_dir}/kubernetes/server/bin/${binary}.tar"
"${docker_cmd[@]}" rmi "${KUBE_DOCKER_REGISTRY}/${binary}:${KUBE_IMAGE_TAG}" 2>/dev/null || true
"${docker_cmd[@]}" tag "gcr.io/google_containers/${binary}:${docker_tag}" "${KUBE_DOCKER_REGISTRY}/${binary}:${KUBE_IMAGE_TAG}"
"${docker_push_cmd[@]}" push "${KUBE_DOCKER_REGISTRY}/${binary}:${KUBE_IMAGE_TAG}"
) &> "${temp_dir}/${binary}-push.log" &
done
kube::util::wait-for-jobs || {
kube::log::error "unable to push images. See ${temp_dir}/*.log for more info."
return 1
}
rm -rf "${temp_dir}"
return 0
}
# Quote something appropriate for a yaml string.
#
# TODO(zmerlynn): Note that this function doesn't so much "quote" as
# "strip out quotes", and we really should be using a YAML library for
# this, but PyYAML isn't shipped by default, and *rant rant rant ... SIGH*
function yaml-quote {
echo "'$(echo "${@:-}" | sed -e "s/'/''/g")'"
}
# Builds the RUNTIME_CONFIG var from other feature enable options (such as
# features in alpha)
function build-runtime-config() {
# There is nothing to do here for now. Just using this function as a placeholder.
:
}
# Writes the cluster name into a temporary file.
# Assumed vars
# CLUSTER_NAME
function write-cluster-name {
cat >"${KUBE_TEMP}/cluster-name.txt" << EOF
${CLUSTER_NAME}
EOF
}
function write-master-env {
# If the user requested that the master be part of the cluster, set the
# environment variable to program the master kubelet to register itself.
if [[ "${REGISTER_MASTER_KUBELET:-}" == "true" && -z "${KUBELET_APISERVER:-}" ]]; then
KUBELET_APISERVER="${MASTER_NAME}"
fi
if [[ -z "${KUBERNETES_MASTER_NAME:-}" ]]; then
KUBERNETES_MASTER_NAME="${MASTER_NAME}"
fi
build-kube-env true "${KUBE_TEMP}/master-kube-env.yaml"
build-kube-master-certs "${KUBE_TEMP}/kube-master-certs.yaml"
}
function write-node-env {
if [[ -z "${KUBERNETES_MASTER_NAME:-}" ]]; then
KUBERNETES_MASTER_NAME="${MASTER_NAME}"
fi
build-kube-env false "${KUBE_TEMP}/node-kube-env.yaml"
}
function build-kube-master-certs {
local file=$1
rm -f ${file}
cat >$file <<EOF
KUBEAPISERVER_CERT: $(yaml-quote ${KUBEAPISERVER_CERT_BASE64:-})
KUBEAPISERVER_KEY: $(yaml-quote ${KUBEAPISERVER_KEY_BASE64:-})
CA_KEY: $(yaml-quote ${CA_KEY_BASE64:-})
AGGREGATOR_CA_KEY: $(yaml-quote ${AGGREGATOR_CA_KEY_BASE64:-})
REQUESTHEADER_CA_CERT: $(yaml-quote ${REQUESTHEADER_CA_CERT_BASE64:-})
PROXY_CLIENT_CERT: $(yaml-quote ${PROXY_CLIENT_CERT_BASE64:-})
PROXY_CLIENT_KEY: $(yaml-quote ${PROXY_CLIENT_KEY_BASE64:-})
EOF
}
# $1: if 'true', we're building a master yaml, else a node
function build-kube-env {
local master=$1
local file=$2
local server_binary_tar_url=$SERVER_BINARY_TAR_URL
local salt_tar_url=$SALT_TAR_URL
local kube_manifests_tar_url="${KUBE_MANIFESTS_TAR_URL:-}"
if [[ "${master}" == "true" && "${MASTER_OS_DISTRIBUTION}" == "container-linux" ]] || \
[[ "${master}" == "false" && "${NODE_OS_DISTRIBUTION}" == "container-linux" ]] || \
[[ "${master}" == "true" && "${MASTER_OS_DISTRIBUTION}" == "ubuntu" ]] || \
[[ "${master}" == "false" && "${NODE_OS_DISTRIBUTION}" == "ubuntu" ]] ; then
# TODO: Support fallback .tar.gz settings on Container Linux
server_binary_tar_url=$(split_csv "${SERVER_BINARY_TAR_URL}")
salt_tar_url=$(split_csv "${SALT_TAR_URL}")
kube_manifests_tar_url=$(split_csv "${KUBE_MANIFESTS_TAR_URL}")
fi
build-runtime-config
gen-uid
rm -f ${file}
cat >$file <<EOF
CLUSTER_NAME: $(yaml-quote ${CLUSTER_NAME})
ENV_TIMESTAMP: $(yaml-quote $(date -u +%Y-%m-%dT%T%z))
INSTANCE_PREFIX: $(yaml-quote ${INSTANCE_PREFIX})
NODE_INSTANCE_PREFIX: $(yaml-quote ${NODE_INSTANCE_PREFIX})
NODE_TAGS: $(yaml-quote ${NODE_TAGS:-})
NODE_NETWORK: $(yaml-quote ${NETWORK:-})
NODE_SUBNETWORK: $(yaml-quote ${SUBNETWORK:-})
CLUSTER_IP_RANGE: $(yaml-quote ${CLUSTER_IP_RANGE:-10.244.0.0/16})
SERVER_BINARY_TAR_URL: $(yaml-quote ${server_binary_tar_url})
SERVER_BINARY_TAR_HASH: $(yaml-quote ${SERVER_BINARY_TAR_HASH})
PROJECT_ID: $(yaml-quote ${PROJECT})
NETWORK_PROJECT_ID: $(yaml-quote ${NETWORK_PROJECT})
SALT_TAR_URL: $(yaml-quote ${salt_tar_url})
SALT_TAR_HASH: $(yaml-quote ${SALT_TAR_HASH})
SERVICE_CLUSTER_IP_RANGE: $(yaml-quote ${SERVICE_CLUSTER_IP_RANGE})
KUBERNETES_MASTER_NAME: $(yaml-quote ${KUBERNETES_MASTER_NAME})
ALLOCATE_NODE_CIDRS: $(yaml-quote ${ALLOCATE_NODE_CIDRS:-false})
ENABLE_CLUSTER_MONITORING: $(yaml-quote ${ENABLE_CLUSTER_MONITORING:-none})
ENABLE_METRICS_SERVER: $(yaml-quote ${ENABLE_METRICS_SERVER:-false})
DOCKER_REGISTRY_MIRROR_URL: $(yaml-quote ${DOCKER_REGISTRY_MIRROR_URL:-})
ENABLE_L7_LOADBALANCING: $(yaml-quote ${ENABLE_L7_LOADBALANCING:-none})
ENABLE_CLUSTER_LOGGING: $(yaml-quote ${ENABLE_CLUSTER_LOGGING:-false})
ENABLE_CLUSTER_UI: $(yaml-quote ${ENABLE_CLUSTER_UI:-false})
ENABLE_NODE_PROBLEM_DETECTOR: $(yaml-quote ${ENABLE_NODE_PROBLEM_DETECTOR:-none})
NODE_PROBLEM_DETECTOR_VERSION: $(yaml-quote ${NODE_PROBLEM_DETECTOR_VERSION:-})
NODE_PROBLEM_DETECTOR_TAR_HASH: $(yaml-quote ${NODE_PROBLEM_DETECTOR_TAR_HASH:-})
ENABLE_NODE_LOGGING: $(yaml-quote ${ENABLE_NODE_LOGGING:-false})
ENABLE_RESCHEDULER: $(yaml-quote ${ENABLE_RESCHEDULER:-false})
LOGGING_DESTINATION: $(yaml-quote ${LOGGING_DESTINATION:-})
ELASTICSEARCH_LOGGING_REPLICAS: $(yaml-quote ${ELASTICSEARCH_LOGGING_REPLICAS:-})
ENABLE_CLUSTER_DNS: $(yaml-quote ${ENABLE_CLUSTER_DNS:-false})
ENABLE_CLUSTER_REGISTRY: $(yaml-quote ${ENABLE_CLUSTER_REGISTRY:-false})
CLUSTER_REGISTRY_DISK: $(yaml-quote ${CLUSTER_REGISTRY_DISK:-})
CLUSTER_REGISTRY_DISK_SIZE: $(yaml-quote ${CLUSTER_REGISTRY_DISK_SIZE:-})
DNS_SERVER_IP: $(yaml-quote ${DNS_SERVER_IP:-})
DNS_DOMAIN: $(yaml-quote ${DNS_DOMAIN:-})
ENABLE_DNS_HORIZONTAL_AUTOSCALER: $(yaml-quote ${ENABLE_DNS_HORIZONTAL_AUTOSCALER:-false})
KUBELET_TOKEN: $(yaml-quote ${KUBELET_TOKEN:-})
KUBE_PROXY_DAEMONSET: $(yaml-quote ${KUBE_PROXY_DAEMONSET:-false})
KUBE_PROXY_TOKEN: $(yaml-quote ${KUBE_PROXY_TOKEN:-})
NODE_PROBLEM_DETECTOR_TOKEN: $(yaml-quote ${NODE_PROBLEM_DETECTOR_TOKEN:-})
ADMISSION_CONTROL: $(yaml-quote ${ADMISSION_CONTROL:-})
ENABLE_POD_SECURITY_POLICY: $(yaml-quote ${ENABLE_POD_SECURITY_POLICY:-})
MASTER_IP_RANGE: $(yaml-quote ${MASTER_IP_RANGE})
RUNTIME_CONFIG: $(yaml-quote ${RUNTIME_CONFIG})
CA_CERT: $(yaml-quote ${CA_CERT_BASE64:-})
KUBELET_CERT: $(yaml-quote ${KUBELET_CERT_BASE64:-})
KUBELET_KEY: $(yaml-quote ${KUBELET_KEY_BASE64:-})
NETWORK_PROVIDER: $(yaml-quote ${NETWORK_PROVIDER:-})
NETWORK_POLICY_PROVIDER: $(yaml-quote ${NETWORK_POLICY_PROVIDER:-})
PREPULL_E2E_IMAGES: $(yaml-quote ${PREPULL_E2E_IMAGES:-})
HAIRPIN_MODE: $(yaml-quote ${HAIRPIN_MODE:-})
SOFTLOCKUP_PANIC: $(yaml-quote ${SOFTLOCKUP_PANIC:-})
OPENCONTRAIL_TAG: $(yaml-quote ${OPENCONTRAIL_TAG:-})
OPENCONTRAIL_KUBERNETES_TAG: $(yaml-quote ${OPENCONTRAIL_KUBERNETES_TAG:-})
OPENCONTRAIL_PUBLIC_SUBNET: $(yaml-quote ${OPENCONTRAIL_PUBLIC_SUBNET:-})
E2E_STORAGE_TEST_ENVIRONMENT: $(yaml-quote ${E2E_STORAGE_TEST_ENVIRONMENT:-})
KUBE_IMAGE_TAG: $(yaml-quote ${KUBE_IMAGE_TAG:-})
KUBE_DOCKER_REGISTRY: $(yaml-quote ${KUBE_DOCKER_REGISTRY:-})
KUBE_ADDON_REGISTRY: $(yaml-quote ${KUBE_ADDON_REGISTRY:-})
MULTIZONE: $(yaml-quote ${MULTIZONE:-})
NON_MASQUERADE_CIDR: $(yaml-quote ${NON_MASQUERADE_CIDR:-})
KUBE_UID: $(yaml-quote ${KUBE_UID:-})
ENABLE_DEFAULT_STORAGE_CLASS: $(yaml-quote ${ENABLE_DEFAULT_STORAGE_CLASS:-})
ENABLE_APISERVER_BASIC_AUDIT: $(yaml-quote ${ENABLE_APISERVER_BASIC_AUDIT:-})
ENABLE_APISERVER_ADVANCED_AUDIT: $(yaml-quote ${ENABLE_APISERVER_ADVANCED_AUDIT:-})
ENABLE_CACHE_MUTATION_DETECTOR: $(yaml-quote ${ENABLE_CACHE_MUTATION_DETECTOR:-false})
ENABLE_PATCH_CONVERSION_DETECTOR: $(yaml-quote ${ENABLE_PATCH_CONVERSION_DETECTOR:-false})
ADVANCED_AUDIT_POLICY: $(yaml-quote ${ADVANCED_AUDIT_POLICY:-})
ADVANCED_AUDIT_BACKEND: $(yaml-quote ${ADVANCED_AUDIT_BACKEND:-log})
GCE_API_ENDPOINT: $(yaml-quote ${GCE_API_ENDPOINT:-})
PROMETHEUS_TO_SD_ENDPOINT: $(yaml-quote ${PROMETHEUS_TO_SD_ENDPOINT:-})
PROMETHEUS_TO_SD_PREFIX: $(yaml-quote ${PROMETHEUS_TO_SD_PREFIX:-})
ENABLE_PROMETHEUS_TO_SD: $(yaml-quote ${ENABLE_PROMETHEUS_TO_SD:-false})
ENABLE_POD_PRIORITY: $(yaml-quote ${ENABLE_POD_PRIORITY:-})
EOF
if [ -n "${KUBELET_PORT:-}" ]; then
cat >>$file <<EOF
KUBELET_PORT: $(yaml-quote ${KUBELET_PORT})
EOF
fi
if [ -n "${KUBE_APISERVER_REQUEST_TIMEOUT:-}" ]; then
cat >>$file <<EOF
KUBE_APISERVER_REQUEST_TIMEOUT: $(yaml-quote ${KUBE_APISERVER_REQUEST_TIMEOUT})
EOF
fi
if [ -n "${TERMINATED_POD_GC_THRESHOLD:-}" ]; then
cat >>$file <<EOF
TERMINATED_POD_GC_THRESHOLD: $(yaml-quote ${TERMINATED_POD_GC_THRESHOLD})
EOF
fi
if [[ "${master}" == "true" && ("${MASTER_OS_DISTRIBUTION}" == "trusty" || "${MASTER_OS_DISTRIBUTION}" == "gci" || "${MASTER_OS_DISTRIBUTION}" == "container-linux") || "${MASTER_OS_DISTRIBUTION}" == "ubuntu" ]] || \
[[ "${master}" == "false" && ("${NODE_OS_DISTRIBUTION}" == "trusty" || "${NODE_OS_DISTRIBUTION}" == "gci" || "${NODE_OS_DISTRIBUTION}" == "container-linux") || "${NODE_OS_DISTRIBUTION}" = "ubuntu" ]] ; then
cat >>$file <<EOF
KUBE_MANIFESTS_TAR_URL: $(yaml-quote ${kube_manifests_tar_url})
KUBE_MANIFESTS_TAR_HASH: $(yaml-quote ${KUBE_MANIFESTS_TAR_HASH})
EOF
fi
if [ -n "${TEST_CLUSTER:-}" ]; then
cat >>$file <<EOF
TEST_CLUSTER: $(yaml-quote ${TEST_CLUSTER})
EOF
fi
if [ -n "${KUBELET_TEST_ARGS:-}" ]; then
cat >>$file <<EOF
KUBELET_TEST_ARGS: $(yaml-quote ${KUBELET_TEST_ARGS})
EOF
fi
if [ -n "${NODE_KUBELET_TEST_ARGS:-}" ]; then
cat >>$file <<EOF
NODE_KUBELET_TEST_ARGS: $(yaml-quote ${NODE_KUBELET_TEST_ARGS})
EOF
fi
if [ -n "${MASTER_KUBELET_TEST_ARGS:-}" ]; then
cat >>$file <<EOF
MASTER_KUBELET_TEST_ARGS: $(yaml-quote ${MASTER_KUBELET_TEST_ARGS})
EOF
fi
if [ -n "${KUBELET_TEST_LOG_LEVEL:-}" ]; then
cat >>$file <<EOF
KUBELET_TEST_LOG_LEVEL: $(yaml-quote ${KUBELET_TEST_LOG_LEVEL})
EOF
fi
if [ -n "${DOCKER_TEST_LOG_LEVEL:-}" ]; then
cat >>$file <<EOF
DOCKER_TEST_LOG_LEVEL: $(yaml-quote ${DOCKER_TEST_LOG_LEVEL})
EOF
fi
if [ -n "${DOCKER_LOG_DRIVER:-}" ]; then
cat >>$file <<EOF
DOCKER_LOG_DRIVER: $(yaml-quote ${DOCKER_LOG_DRIVER})
EOF
fi
if [ -n "${DOCKER_LOG_MAX_SIZE:-}" ]; then
cat >>$file <<EOF
DOCKER_LOG_MAX_SIZE: $(yaml-quote ${DOCKER_LOG_MAX_SIZE})
EOF
fi
if [ -n "${DOCKER_LOG_MAX_FILE:-}" ]; then
cat >>$file <<EOF
DOCKER_LOG_MAX_FILE: $(yaml-quote ${DOCKER_LOG_MAX_FILE})
EOF
fi
if [ -n "${ENABLE_CUSTOM_METRICS:-}" ]; then
cat >>$file <<EOF
ENABLE_CUSTOM_METRICS: $(yaml-quote ${ENABLE_CUSTOM_METRICS})
EOF
fi
if [ -n "${FEATURE_GATES:-}" ]; then
cat >>$file <<EOF
FEATURE_GATES: $(yaml-quote ${FEATURE_GATES})
EOF
fi
if [ -n "${ROTATE_CERTIFICATES:-}" ]; then
cat >>$file <<EOF
ROTATE_CERTIFICATES: $(yaml-quote ${ROTATE_CERTIFICATES})
EOF
fi
if [[ "${master}" == "true" && "${MASTER_OS_DISTRIBUTION}" == "gci" ]] ||
[[ "${master}" == "false" && "${NODE_OS_DISTRIBUTION}" == "gci" ]]; then
cat >>$file <<EOF
VOLUME_PLUGIN_DIR: $(yaml-quote ${VOLUME_PLUGIN_DIR:-/etc/srv/kubernetes/kubelet-plugins/volume/exec})
EOF
fi
if [ -n "${PROVIDER_VARS:-}" ]; then
local var_name
local var_value
for var_name in ${PROVIDER_VARS}; do
eval "local var_value=\$(yaml-quote \${${var_name}})"
cat >>$file <<EOF
${var_name}: ${var_value}
EOF
done
fi
if [[ "${master}" == "true" ]]; then
# Master-only env vars.
cat >>$file <<EOF
KUBERNETES_MASTER: $(yaml-quote "true")
KUBE_USER: $(yaml-quote ${KUBE_USER})
KUBE_PASSWORD: $(yaml-quote ${KUBE_PASSWORD})
KUBE_BEARER_TOKEN: $(yaml-quote ${KUBE_BEARER_TOKEN})
MASTER_CERT: $(yaml-quote ${MASTER_CERT_BASE64:-})
MASTER_KEY: $(yaml-quote ${MASTER_KEY_BASE64:-})
KUBECFG_CERT: $(yaml-quote ${KUBECFG_CERT_BASE64:-})
KUBECFG_KEY: $(yaml-quote ${KUBECFG_KEY_BASE64:-})
KUBELET_APISERVER: $(yaml-quote ${KUBELET_APISERVER:-})
ENABLE_MANIFEST_URL: $(yaml-quote ${ENABLE_MANIFEST_URL:-false})
MANIFEST_URL: $(yaml-quote ${MANIFEST_URL:-})
MANIFEST_URL_HEADER: $(yaml-quote ${MANIFEST_URL_HEADER:-})
NUM_NODES: $(yaml-quote ${NUM_NODES})
STORAGE_BACKEND: $(yaml-quote ${STORAGE_BACKEND:-etcd3})
STORAGE_MEDIA_TYPE: $(yaml-quote ${STORAGE_MEDIA_TYPE:-})
ENABLE_GARBAGE_COLLECTOR: $(yaml-quote ${ENABLE_GARBAGE_COLLECTOR:-})
ENABLE_LEGACY_ABAC: $(yaml-quote ${ENABLE_LEGACY_ABAC:-})
MASTER_ADVERTISE_ADDRESS: $(yaml-quote ${MASTER_ADVERTISE_ADDRESS:-})
ETCD_CA_KEY: $(yaml-quote ${ETCD_CA_KEY_BASE64:-})
ETCD_CA_CERT: $(yaml-quote ${ETCD_CA_CERT_BASE64:-})
ETCD_PEER_KEY: $(yaml-quote ${ETCD_PEER_KEY_BASE64:-})
ETCD_PEER_CERT: $(yaml-quote ${ETCD_PEER_CERT_BASE64:-})
EOF
# KUBE_APISERVER_REQUEST_TIMEOUT_SEC (if set) controls the --request-timeout
# flag
if [ -n "${KUBE_APISERVER_REQUEST_TIMEOUT_SEC:-}" ]; then
cat >>$file <<EOF
KUBE_APISERVER_REQUEST_TIMEOUT_SEC: $(yaml-quote ${KUBE_APISERVER_REQUEST_TIMEOUT_SEC})
EOF
fi
# ETCD_IMAGE (if set) allows to use a custom etcd image.
if [ -n "${ETCD_IMAGE:-}" ]; then
cat >>$file <<EOF
ETCD_IMAGE: $(yaml-quote ${ETCD_IMAGE})
EOF
fi
# ETCD_DOCKER_REPOSITORY (if set) allows to use a custom etcd docker repository to pull the etcd image from.
if [ -n "${ETCD_DOCKER_REPOSITORY:-}" ]; then
cat >>$file <<EOF
ETCD_DOCKER_REPOSITORY: $(yaml-quote ${ETCD_DOCKER_REPOSITORY})
EOF
fi
# ETCD_VERSION (if set) allows you to use custom version of etcd.
# The main purpose of using it may be rollback of etcd v3 API,
# where we need 3.0.* image, but are rolling back to 2.3.7.
if [ -n "${ETCD_VERSION:-}" ]; then
cat >>$file <<EOF
ETCD_VERSION: $(yaml-quote ${ETCD_VERSION})
EOF
fi
if [ -n "${ETCD_HOSTNAME:-}" ]; then
cat >>$file <<EOF
ETCD_HOSTNAME: $(yaml-quote ${ETCD_HOSTNAME})
EOF
fi
if [ -n "${APISERVER_TEST_ARGS:-}" ]; then
cat >>$file <<EOF
APISERVER_TEST_ARGS: $(yaml-quote ${APISERVER_TEST_ARGS})
EOF
fi
if [ -n "${APISERVER_TEST_LOG_LEVEL:-}" ]; then
cat >>$file <<EOF
APISERVER_TEST_LOG_LEVEL: $(yaml-quote ${APISERVER_TEST_LOG_LEVEL})
EOF
fi
if [ -n "${CONTROLLER_MANAGER_TEST_ARGS:-}" ]; then
cat >>$file <<EOF
CONTROLLER_MANAGER_TEST_ARGS: $(yaml-quote ${CONTROLLER_MANAGER_TEST_ARGS})
EOF
fi
if [ -n "${CONTROLLER_MANAGER_TEST_LOG_LEVEL:-}" ]; then
cat >>$file <<EOF
CONTROLLER_MANAGER_TEST_LOG_LEVEL: $(yaml-quote ${CONTROLLER_MANAGER_TEST_LOG_LEVEL})
EOF
fi
if [ -n "${SCHEDULER_TEST_ARGS:-}" ]; then
cat >>$file <<EOF
SCHEDULER_TEST_ARGS: $(yaml-quote ${SCHEDULER_TEST_ARGS})
EOF
fi
if [ -n "${SCHEDULER_TEST_LOG_LEVEL:-}" ]; then
cat >>$file <<EOF
SCHEDULER_TEST_LOG_LEVEL: $(yaml-quote ${SCHEDULER_TEST_LOG_LEVEL})
EOF
fi
if [ -n "${INITIAL_ETCD_CLUSTER:-}" ]; then
cat >>$file <<EOF
INITIAL_ETCD_CLUSTER: $(yaml-quote ${INITIAL_ETCD_CLUSTER})
EOF
fi
if [ -n "${INITIAL_ETCD_CLUSTER_STATE:-}" ]; then
cat >>$file <<EOF
INITIAL_ETCD_CLUSTER_STATE: $(yaml-quote ${INITIAL_ETCD_CLUSTER_STATE})
EOF
fi
if [ -n "${ETCD_QUORUM_READ:-}" ]; then
cat >>$file <<EOF
ETCD_QUORUM_READ: $(yaml-quote ${ETCD_QUORUM_READ})
EOF
fi
if [ -n "${CLUSTER_SIGNING_DURATION:-}" ]; then
cat >>$file <<EOF
CLUSTER_SIGNING_DURATION: $(yaml-quote ${CLUSTER_SIGNING_DURATION})
EOF
fi
else
# Node-only env vars.
cat >>$file <<EOF
KUBERNETES_MASTER: $(yaml-quote "false")
ZONE: $(yaml-quote ${ZONE})
EXTRA_DOCKER_OPTS: $(yaml-quote ${EXTRA_DOCKER_OPTS:-})
EOF
if [ -n "${KUBEPROXY_TEST_ARGS:-}" ]; then
cat >>$file <<EOF
KUBEPROXY_TEST_ARGS: $(yaml-quote ${KUBEPROXY_TEST_ARGS})
EOF
fi
if [ -n "${KUBEPROXY_TEST_LOG_LEVEL:-}" ]; then
cat >>$file <<EOF
KUBEPROXY_TEST_LOG_LEVEL: $(yaml-quote ${KUBEPROXY_TEST_LOG_LEVEL})
EOF
fi
fi
if [ -n "${NODE_LABELS:-}" ]; then
cat >>$file <<EOF
NODE_LABELS: $(yaml-quote ${NODE_LABELS})
EOF
fi
if [ -n "${EVICTION_HARD:-}" ]; then
cat >>$file <<EOF
EVICTION_HARD: $(yaml-quote ${EVICTION_HARD})
EOF
fi
if [[ "${master}" == "true" && "${MASTER_OS_DISTRIBUTION}" == "container-linux" ]] || \
[[ "${master}" == "false" && "${NODE_OS_DISTRIBUTION}" == "container-linux" ]]; then
# Container-Linux-only env vars. TODO(yifan): Make them available on other distros.
cat >>$file <<EOF
KUBERNETES_CONTAINER_RUNTIME: $(yaml-quote ${CONTAINER_RUNTIME:-rkt})
RKT_VERSION: $(yaml-quote ${RKT_VERSION:-})
RKT_PATH: $(yaml-quote ${RKT_PATH:-})
RKT_STAGE1_IMAGE: $(yaml-quote ${RKT_STAGE1_IMAGE:-})
EOF
fi
if [[ "${ENABLE_CLUSTER_AUTOSCALER}" == "true" ]]; then
cat >>$file <<EOF
ENABLE_CLUSTER_AUTOSCALER: $(yaml-quote ${ENABLE_CLUSTER_AUTOSCALER})
AUTOSCALER_MIG_CONFIG: $(yaml-quote ${AUTOSCALER_MIG_CONFIG})
AUTOSCALER_EXPANDER_CONFIG: $(yaml-quote ${AUTOSCALER_EXPANDER_CONFIG})
EOF
fi
if [ -n "${DNS_ZONE_NAME:-}" ]; then
cat >>$file <<EOF
DNS_ZONE_NAME: $(yaml-quote ${DNS_ZONE_NAME})
EOF
fi
if [ -n "${SCHEDULING_ALGORITHM_PROVIDER:-}" ]; then
cat >>$file <<EOF
SCHEDULING_ALGORITHM_PROVIDER: $(yaml-quote ${SCHEDULING_ALGORITHM_PROVIDER})
EOF
fi
}
function sha1sum-file() {
if which sha1sum >/dev/null 2>&1; then
sha1sum "$1" | awk '{ print $1 }'
else
shasum -a1 "$1" | awk '{ print $1 }'
fi
}
# Create certificate pairs for the cluster.
# $1: The public IP for the master.
#
# These are used for static cert distribution (e.g. static clustering) at
# cluster creation time. This will be obsoleted once we implement dynamic
# clustering.
#
# The following certificate pairs are created:
#
# - ca (the cluster's certificate authority)
# - server
# - kubelet
# - kubecfg (for kubectl)
#
# TODO(roberthbailey): Replace easyrsa with a simple Go program to generate
# the certs that we need.
#
# Assumed vars
# KUBE_TEMP
# MASTER_NAME
#
# Vars set:
# CERT_DIR
# CA_CERT_BASE64
# MASTER_CERT_BASE64
# MASTER_KEY_BASE64
# KUBELET_CERT_BASE64
# KUBELET_KEY_BASE64
# KUBECFG_CERT_BASE64
# KUBECFG_KEY_BASE64
function create-certs {
local -r primary_cn="${1}"
# Determine extra certificate names for master
local octets=($(echo "${SERVICE_CLUSTER_IP_RANGE}" | sed -e 's|/.*||' -e 's/\./ /g'))
((octets[3]+=1))
local -r service_ip=$(echo "${octets[*]}" | sed 's/ /./g')
local sans=""
for extra in $@; do
if [[ -n "${extra}" ]]; then
sans="${sans}IP:${extra},"
fi
done
sans="${sans}IP:${service_ip},DNS:kubernetes,DNS:kubernetes.default,DNS:kubernetes.default.svc,DNS:kubernetes.default.svc.${DNS_DOMAIN},DNS:${MASTER_NAME}"
echo "Generating certs for alternate-names: ${sans}"
setup-easyrsa
PRIMARY_CN="${primary_cn}" SANS="${sans}" generate-certs
AGGREGATOR_PRIMARY_CN="${primary_cn}" AGGREGATOR_SANS="${sans}" generate-aggregator-certs
CERT_DIR="${KUBE_TEMP}/easy-rsa-master/easyrsa3"
# By default, linux wraps base64 output every 76 cols, so we use 'tr -d' to remove whitespaces.
# Note 'base64 -w0' doesn't work on Mac OS X, which has different flags.
CA_KEY_BASE64=$(cat "${CERT_DIR}/pki/private/ca.key" | base64 | tr -d '\r\n')