982 lines
40 KiB
Bash
982 lines
40 KiB
Bash
#!/bin/bash
|
|
|
|
# Copyright 2015 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.
|
|
|
|
# This script contains functions for configuring instances to run kubernetes
|
|
# master and nodes. It is uploaded in kube-manifests tarball, and used by
|
|
# upstart jobs in cluster/gce/trusty/<master, node>.yaml
|
|
|
|
|
|
config_hostname() {
|
|
# Set the hostname to the short version.
|
|
host_name=$(curl --silent "http://metadata.google.internal/computeMetadata/v1/instance/hostname" -H "Metadata-Flavor: Google")
|
|
short_hostname=$(echo "${host_name}" | cut -d. -f1)
|
|
hostname "${short_hostname}"
|
|
}
|
|
|
|
config_ip_firewall() {
|
|
# We have seen that GCE image may have strict host firewall rules which drop
|
|
# most inbound/forwarded packets. In such a case, add rules to accept all
|
|
# TCP/UDP/ICMP packets.
|
|
if iptables -L INPUT | grep "Chain INPUT (policy DROP)" > /dev/null; then
|
|
echo "Add rules to accpet all inbound TCP/UDP/ICMP packets"
|
|
iptables -A INPUT -w -p TCP -j ACCEPT
|
|
iptables -A INPUT -w -p UDP -j ACCEPT
|
|
iptables -A INPUT -w -p ICMP -j ACCEPT
|
|
fi
|
|
if iptables -L FORWARD | grep "Chain FORWARD (policy DROP)" > /dev/null; then
|
|
echo "Add rules to accpet all forwarded TCP/UDP/ICMP packets"
|
|
iptables -A FORWARD -w -p TCP -j ACCEPT
|
|
iptables -A FORWARD -w -p UDP -j ACCEPT
|
|
iptables -A FORWARD -w -p ICMP -j ACCEPT
|
|
fi
|
|
}
|
|
|
|
create_dirs() {
|
|
# Create required directories.
|
|
mkdir -p /var/lib/kubelet
|
|
mkdir -p /etc/kubernetes/manifests
|
|
if [ "${KUBERNETES_MASTER:-}" = "false" ]; then
|
|
mkdir -p /var/lib/kube-proxy
|
|
fi
|
|
}
|
|
|
|
create_kubelet_kubeconfig() {
|
|
# Create the kubelet kubeconfig file.
|
|
if [ -z "${KUBELET_CA_CERT:-}" ]; then
|
|
KUBELET_CA_CERT="${CA_CERT}"
|
|
fi
|
|
cat > /var/lib/kubelet/kubeconfig << EOF
|
|
apiVersion: v1
|
|
kind: Config
|
|
users:
|
|
- name: kubelet
|
|
user:
|
|
client-certificate-data: ${KUBELET_CERT}
|
|
client-key-data: ${KUBELET_KEY}
|
|
clusters:
|
|
- name: local
|
|
cluster:
|
|
certificate-authority-data: ${KUBELET_CA_CERT}
|
|
contexts:
|
|
- context:
|
|
cluster: local
|
|
user: kubelet
|
|
name: service-account-context
|
|
current-context: service-account-context
|
|
EOF
|
|
}
|
|
|
|
create_kubeproxy_kubeconfig() {
|
|
# Create the kube-proxy config file.
|
|
cat > /var/lib/kube-proxy/kubeconfig << EOF
|
|
apiVersion: v1
|
|
kind: Config
|
|
users:
|
|
- name: kube-proxy
|
|
user:
|
|
token: ${KUBE_PROXY_TOKEN}
|
|
clusters:
|
|
- name: local
|
|
cluster:
|
|
certificate-authority-data: ${CA_CERT}
|
|
contexts:
|
|
- context:
|
|
cluster: local
|
|
user: kube-proxy
|
|
name: service-account-context
|
|
current-context: service-account-context
|
|
EOF
|
|
}
|
|
|
|
# Installs the critical packages that are required by spinning up a cluster.
|
|
install_critical_packages() {
|
|
apt-get update
|
|
# Install docker and brctl if they are not in the image.
|
|
if ! which docker > /dev/null; then
|
|
echo "Do not find docker. Install it."
|
|
curl -fsSL https://get.docker.com/ | sh
|
|
fi
|
|
if ! which brctl > /dev/null; then
|
|
echo "Do not find brctl. Install it."
|
|
apt-get install --yes bridge-utils
|
|
fi
|
|
}
|
|
|
|
# Install the packages that are useful but not required by spinning up a cluster.
|
|
install_additional_packages() {
|
|
if ! which socat > /dev/null; then
|
|
echo "Do not find socat. Install it."
|
|
apt-get install --yes socat
|
|
fi
|
|
if ! which nsenter > /dev/null; then
|
|
echo "Do not find nsenter. Install it."
|
|
mkdir -p /tmp/nsenter-install
|
|
cd /tmp/nsenter-install
|
|
curl https://www.kernel.org/pub/linux/utils/util-linux/v2.24/util-linux-2.24.tar.gz | tar -zxf-
|
|
apt-get --yes install make
|
|
apt-get --yes install gcc
|
|
cd util-linux-2.24
|
|
./configure --without-ncurses
|
|
make nsenter
|
|
cp nsenter /usr/local/bin
|
|
rm -rf /tmp/nsenter-install
|
|
fi
|
|
}
|
|
|
|
# Assembles kubelet command line flags.
|
|
# It should be called by master and nodes before running kubelet process. The caller
|
|
# needs to source the config file /etc/kube-env. This function sets the following
|
|
# variable that will be used as the kubelet command line flags
|
|
# KUBELET_CMD_FLAGS
|
|
assemble_kubelet_flags() {
|
|
log_level="--v=2"
|
|
if [ -n "${KUBELET_TEST_LOG_LEVEL:-}" ]; then
|
|
log_level="${KUBELET_TEST_LOG_LEVEL}"
|
|
fi
|
|
KUBELET_CMD_FLAGS="${log_level} ${KUBELET_TEST_ARGS:-}"
|
|
if [ -n "${KUBELET_PORT:-}" ]; then
|
|
KUBELET_CMD_FLAGS="${KUBELET_CMD_FLAGS} --port=${KUBELET_PORT}"
|
|
fi
|
|
if [ "${KUBERNETES_MASTER:-}" = "true" ]; then
|
|
KUBELET_CMD_FLAGS="${KUBELET_CMD_FLAGS} --enable-debugging-handlers=false --hairpin-mode=none"
|
|
if [ "${REGISTER_MASTER_KUBELET:-false}" == "true" ]; then
|
|
KUBELET_CMD_FLAGS="${KUBELET_CMD_FLAGS} --api-servers=https://${KUBELET_APISERVER} --register-schedulable=false"
|
|
else
|
|
KUBELET_CMD_FLAGS="${KUBELET_CMD_FLAGS} --pod-cidr=${MASTER_IP_RANGE}"
|
|
fi
|
|
else # For nodes
|
|
KUBELET_CMD_FLAGS="${KUBELET_CMD_FLAGS} --enable-debugging-handlers=true --api-servers=https://${KUBERNETES_MASTER_NAME}"
|
|
if [ "${HAIRPIN_MODE:-}" = "promiscuous-bridge" ] || \
|
|
[ "${HAIRPIN_MODE:-}" = "hairpin-veth" ] || \
|
|
[ "${HAIRPIN_MODE:-}" = "none" ]; then
|
|
KUBELET_CMD_FLAGS="${KUBELET_CMD_FLAGS} --hairpin-mode=${HAIRPIN_MODE}"
|
|
fi
|
|
fi
|
|
if [ "${ENABLE_MANIFEST_URL:-}" = "true" ]; then
|
|
KUBELET_CMD_FLAGS="${KUBELET_CMD_FLAGS} --manifest-url=${MANIFEST_URL} --manifest-url-header=${MANIFEST_URL_HEADER}"
|
|
fi
|
|
if [ -n "${ENABLE_CUSTOM_METRICS:-}" ]; then
|
|
KUBELET_CMD_FLAGS="${KUBELET_CMD_FLAGS} --enable-custom-metrics=${ENABLE_CUSTOM_METRICS}"
|
|
fi
|
|
if [ -n "${NODE_LABELS:-}" ]; then
|
|
KUBELET_CMD_FLAGS="${KUBELET_CMD_FLAGS} --node-labels=${NODE_LABELS}"
|
|
fi
|
|
# Add the unconditional flags
|
|
KUBELET_CMD_FLAGS="${KUBELET_CMD_FLAGS} --cloud-provider=gce --allow-privileged=true --cgroup-root=/ --system-cgroups=/system --kubelet-cgroups=/kubelet --babysit-daemons=true --config=/etc/kubernetes/manifests --cluster-dns=${DNS_SERVER_IP} --cluster-domain=${DNS_DOMAIN}"
|
|
echo "KUBELET_OPTS=\"${KUBELET_CMD_FLAGS}\"" > /etc/default/kubelet
|
|
}
|
|
|
|
start_kubelet(){
|
|
echo "Start kubelet"
|
|
# Delete docker0 to avoid interference
|
|
iptables -t nat -F || true
|
|
ip link set docker0 down || true
|
|
brctl delbr docker0 || true
|
|
. /etc/default/kubelet
|
|
/usr/bin/kubelet ${KUBELET_OPTS} 1>>/var/log/kubelet.log 2>&1
|
|
}
|
|
|
|
restart_docker_daemon() {
|
|
DOCKER_OPTS="-p /var/run/docker.pid --bridge=cbr0 --iptables=false --ip-masq=false"
|
|
if [ "${TEST_CLUSTER:-}" = "true" ]; then
|
|
DOCKER_OPTS="${DOCKER_OPTS} --debug"
|
|
fi
|
|
# Decide whether to enable a docker registry mirror. This is taken from
|
|
# the "kube-env" metadata value.
|
|
if [ -n "${DOCKER_REGISTRY_MIRROR_URL:-}" ]; then
|
|
echo "Enable docker registry mirror at: ${DOCKER_REGISTRY_MIRROR_URL}"
|
|
DOCKER_OPTS="${DOCKER_OPTS} --registry-mirror=${DOCKER_REGISTRY_MIRROR_URL}"
|
|
fi
|
|
|
|
echo "DOCKER_OPTS=\"${DOCKER_OPTS} ${EXTRA_DOCKER_OPTS:-}\"" > /etc/default/docker
|
|
# Make sure the network interface cbr0 is created before restarting docker daemon
|
|
while ! [ -L /sys/class/net/cbr0 ]; do
|
|
echo "Sleep 1 second to wait for cbr0"
|
|
sleep 1
|
|
done
|
|
# Ensure docker daemon is really functional before exiting. Operations afterwards may
|
|
# assume it is running.
|
|
while ! docker version > /dev/null; do
|
|
echo "Sleep 1 second to wait for docker daemon"
|
|
sleep 1
|
|
done
|
|
}
|
|
|
|
# Create the log file and set its properties.
|
|
#
|
|
# $1 is the file to create
|
|
prepare_log_file() {
|
|
touch $1
|
|
chmod 644 $1
|
|
chown root:root $1
|
|
}
|
|
|
|
# It monitors the health of several master and node components.
|
|
health_monitoring() {
|
|
sleep_seconds=10
|
|
max_seconds=10
|
|
# We simply kill the process when there is a failure. Another upstart job will automatically
|
|
# restart the process.
|
|
while [ 1 ]; do
|
|
if ! timeout 10 docker version > /dev/null; then
|
|
echo "Docker daemon failed!"
|
|
pkill docker
|
|
# Wait for a while, as we don't want to kill it again before it is really up.
|
|
sleep 30
|
|
fi
|
|
if ! curl --insecure -m "${max_seconds}" -f -s https://127.0.0.1:${KUBELET_PORT:-10250}/healthz > /dev/null; then
|
|
echo "Kubelet is unhealthy!"
|
|
pkill kubelet
|
|
# Wait for a while, as we don't want to kill it again before it is really up.
|
|
sleep 60
|
|
fi
|
|
sleep "${sleep_seconds}"
|
|
done
|
|
}
|
|
|
|
|
|
########## The functions below are for master only ##########
|
|
|
|
# Mounts a persistent disk (formatting if needed) to store the persistent data
|
|
# on the master -- etcd's data, a few settings, and security certs/keys/tokens.
|
|
# safe_format_and_mount only formats an unformatted disk, and mkdir -p will
|
|
# leave a directory be if it already exists.
|
|
mount_master_pd() {
|
|
readonly pd_path="/dev/disk/by-id/google-master-pd"
|
|
readonly mount_point="/mnt/disks/master-pd"
|
|
|
|
if [ ! -e "${pd_path}" ]; then
|
|
return
|
|
fi
|
|
# Format and mount the disk, create directories on it for all of the master's
|
|
# persistent data, and link them to where they're used.
|
|
mkdir -p "${mount_point}"
|
|
/usr/share/google/safe_format_and_mount -m "mkfs.ext4 -F" "${pd_path}" "${mount_point}" >/var/log/master-pd-mount.log || \
|
|
{ echo "!!! master-pd mount failed, review /var/log/master-pd-mount.log !!!"; return 1; }
|
|
# Contains all the data stored in etcd
|
|
mkdir -m 700 -p "${mount_point}/var/etcd"
|
|
# Contains the dynamically generated apiserver auth certs and keys
|
|
mkdir -p "${mount_point}/etc/srv/kubernetes"
|
|
# Directory for kube-apiserver to store SSH key (if necessary)
|
|
mkdir -p "${mount_point}/etc/srv/sshproxy"
|
|
ln -s -f "${mount_point}/var/etcd" /var/etcd
|
|
mkdir -p /etc/srv
|
|
ln -s -f "${mount_point}/etc/srv/kubernetes" /etc/srv/kubernetes
|
|
ln -s -f "${mount_point}/etc/srv/sshproxy" /etc/srv/sshproxy
|
|
|
|
if ! id etcd &>/dev/null; then
|
|
useradd -s /sbin/nologin -d /var/etcd etcd
|
|
fi
|
|
chown -R etcd "${mount_point}/var/etcd"
|
|
chgrp -R etcd "${mount_point}/var/etcd"
|
|
}
|
|
|
|
# After the first boot and on upgrade, these files exists on the master-pd
|
|
# and should never be touched again (except perhaps an additional service
|
|
# account, see NB below.)
|
|
create_master_auth() {
|
|
readonly auth_dir="/etc/srv/kubernetes"
|
|
if [ ! -e "${auth_dir}/ca.crt" ]; then
|
|
if [ ! -z "${CA_CERT:-}" ] && [ ! -z "${MASTER_CERT:-}" ] && [ ! -z "${MASTER_KEY:-}" ]; then
|
|
echo "${CA_CERT}" | base64 --decode > "${auth_dir}/ca.crt"
|
|
echo "${MASTER_CERT}" | base64 --decode > "${auth_dir}/server.cert"
|
|
echo "${MASTER_KEY}" | base64 --decode > "${auth_dir}/server.key"
|
|
# Kubecfg cert/key are optional and included for backwards compatibility.
|
|
# TODO(roberthbailey): Remove these two lines once GKE no longer requires
|
|
# fetching clients certs from the master VM.
|
|
echo "${KUBECFG_CERT:-}" | base64 --decode > "${auth_dir}/kubecfg.crt"
|
|
echo "${KUBECFG_KEY:-}" | base64 --decode > "${auth_dir}/kubecfg.key"
|
|
fi
|
|
fi
|
|
readonly basic_auth_csv="${auth_dir}/basic_auth.csv"
|
|
if [ ! -e "${basic_auth_csv}" ]; then
|
|
echo "${KUBE_PASSWORD},${KUBE_USER},admin" > "${basic_auth_csv}"
|
|
fi
|
|
readonly known_tokens_csv="${auth_dir}/known_tokens.csv"
|
|
if [ ! -e "${known_tokens_csv}" ]; then
|
|
echo "${KUBE_BEARER_TOKEN},admin,admin" > "${known_tokens_csv}"
|
|
echo "${KUBELET_TOKEN},kubelet,kubelet" >> "${known_tokens_csv}"
|
|
echo "${KUBE_PROXY_TOKEN},kube_proxy,kube_proxy" >> "${known_tokens_csv}"
|
|
fi
|
|
|
|
use_cloud_config="false"
|
|
cat <<EOF >/etc/gce.conf
|
|
[global]
|
|
EOF
|
|
if [ -n "${PROJECT_ID:-}" ] && [ -n "${TOKEN_URL:-}" ] && [ -n "${TOKEN_BODY:-}" ] && [ -n "${NODE_NETWORK:-}" ]; then
|
|
use_cloud_config="true"
|
|
cat <<EOF >>/etc/gce.conf
|
|
token-url = ${TOKEN_URL}
|
|
token-body = ${TOKEN_BODY}
|
|
project-id = ${PROJECT_ID}
|
|
network-name = ${NODE_NETWORK}
|
|
EOF
|
|
fi
|
|
if [ -n "${NODE_INSTANCE_PREFIX:-}" ]; then
|
|
use_cloud_config="true"
|
|
if [[ -n "${NODE_TAGS:-}" ]]; then
|
|
local -r node_tags="${NODE_TAGS}"
|
|
else
|
|
local -r node_tags="${NODE_INSTANCE_PREFIX}"
|
|
fi
|
|
cat <<EOF >>/etc/gce.conf
|
|
node-tags = ${node_tags}
|
|
node-instance-prefix = ${NODE_INSTANCE_PREFIX}
|
|
EOF
|
|
fi
|
|
if [ -n "${MULTIZONE:-}" ]; then
|
|
cat <<EOF >>/etc/gce.conf
|
|
multizone = ${MULTIZONE}
|
|
EOF
|
|
fi
|
|
if [ "${use_cloud_config}" != "true" ]; then
|
|
rm -f /etc/gce.conf
|
|
fi
|
|
if [ -n "${GCP_AUTHN_URL:-}" ]; then
|
|
cat <<EOF >/etc/gcp_authn.config
|
|
clusters:
|
|
- name: gcp-authentication-server
|
|
cluster:
|
|
server: ${GCP_AUTHN_URL}
|
|
users:
|
|
- name: kube-apiserver
|
|
user:
|
|
auth-provider:
|
|
name: gcp
|
|
current-context: webhook
|
|
contexts:
|
|
- context:
|
|
cluster: gcp-authentication-server
|
|
user: kube-apiserver
|
|
name: webhook
|
|
EOF
|
|
fi
|
|
|
|
if [ -n "${GCP_AUTHZ_URL:-}" ]; then
|
|
cat <<EOF >/etc/gcp_authz.config
|
|
clusters:
|
|
- name: gcp-authorization-server
|
|
cluster:
|
|
server: ${GCP_AUTHZ_URL}
|
|
users:
|
|
- name: kube-apiserver
|
|
user:
|
|
auth-provider:
|
|
name: gcp
|
|
current-context: webhook
|
|
contexts:
|
|
- context:
|
|
cluster: gcp-authorization-server
|
|
user: kube-apiserver
|
|
name: webhook
|
|
EOF
|
|
fi
|
|
|
|
if [[ -n "${GCP_IMAGE_VERIFICATION_URL:-}" ]]; then
|
|
# This is the config file for the image review webhook.
|
|
cat <<EOF >/etc/gcp_image_review.config
|
|
clusters:
|
|
- name: gcp-image-review-server
|
|
cluster:
|
|
server: ${GCP_IMAGE_VERIFICATION_URL}
|
|
users:
|
|
- name: kube-apiserver
|
|
user:
|
|
auth-provider:
|
|
name: gcp
|
|
current-context: webhook
|
|
contexts:
|
|
- context:
|
|
cluster: gcp-image-review-server
|
|
user: kube-apiserver
|
|
name: webhook
|
|
EOF
|
|
# This is the config for the image review admission controller.
|
|
cat <<EOF >/etc/admission_controller.config
|
|
imagePolicy:
|
|
kubeConfigFile: /etc/gcp_image_review.config
|
|
allowTTL: 30
|
|
denyTTL: 30
|
|
retryBackoff: 500
|
|
defaultAllow: true
|
|
EOF
|
|
fi
|
|
}
|
|
|
|
# Uses KUBELET_CA_CERT (falling back to CA_CERT), KUBELET_CERT, and KUBELET_KEY
|
|
# to generate a kubeconfig file for the kubelet to securely connect to the apiserver.
|
|
# Set REGISTER_MASTER_KUBELET to true if kubelet on the master node
|
|
# should register to the apiserver.
|
|
create_master_kubelet_auth() {
|
|
# Only configure the kubelet on the master if the required variables are
|
|
# set in the environment.
|
|
if [ -n "${KUBELET_APISERVER:-}" ] && [ -n "${KUBELET_CERT:-}" ] && [ -n "${KUBELET_KEY:-}" ]; then
|
|
REGISTER_MASTER_KUBELET="true"
|
|
create_kubelet_kubeconfig
|
|
fi
|
|
}
|
|
|
|
function create-master-etcd-auth {
|
|
if [[ -n "${ETCD_CA_CERT:-}" && -n "${ETCD_PEER_KEY:-}" && -n "${ETCD_PEER_CERT:-}" ]]; then
|
|
local -r auth_dir="/etc/srv/kubernetes"
|
|
echo "${ETCD_CA_CERT}" | base64 --decode | gunzip > "${auth_dir}/etcd-ca.crt"
|
|
echo "${ETCD_PEER_KEY}" | base64 --decode > "${auth_dir}/etcd-peer.key"
|
|
echo "${ETCD_PEER_CERT}" | base64 --decode | gunzip > "${auth_dir}/etcd-peer.crt"
|
|
fi
|
|
}
|
|
|
|
# Replaces the variables in the etcd manifest file with the real values, and then
|
|
# copy the file to the manifest dir
|
|
# $1: value for variable 'suffix'
|
|
# $2: value for variable 'port'
|
|
# $3: value for variable 'server_port'
|
|
# $4: value for variable 'cpulimit'
|
|
# $5: pod name, which should be either etcd or etcd-events
|
|
prepare_etcd_manifest() {
|
|
local host_name=$(hostname)
|
|
local etcd_cluster=""
|
|
local cluster_state="new"
|
|
local etcd_protocol="http"
|
|
local etcd_creds=""
|
|
|
|
if [[ -n "${ETCD_CA_KEY:-}" && -n "${ETCD_CA_CERT:-}" && -n "${ETCD_PEER_KEY:-}" && -n "${ETCD_PEER_CERT:-}" ]]; then
|
|
etcd_creds=" --peer-trusted-ca-file /etc/srv/kubernetes/etcd-ca.crt --peer-cert-file /etc/srv/kubernetes/etcd-peer.crt --peer-key-file /etc/srv/kubernetes/etcd-peer.key -peer-client-cert-auth "
|
|
etcd_protocol="https"
|
|
fi
|
|
|
|
for host in $(echo "${INITIAL_ETCD_CLUSTER:-${host_name}}" | tr "," "\n"); do
|
|
etcd_host="etcd-${host}=${etcd_protocol}://${host}:$3"
|
|
if [[ -n "${etcd_cluster}" ]]; then
|
|
etcd_cluster+=","
|
|
cluster_state="existing"
|
|
fi
|
|
etcd_cluster+="${etcd_host}"
|
|
done
|
|
|
|
etcd_temp_file="/tmp/$5"
|
|
cp /home/kubernetes/kube-manifests/kubernetes/gci-trusty/etcd.manifest "${etcd_temp_file}"
|
|
remove_salt_config_comments "${etcd_temp_file}"
|
|
sed -i -e "s@{{ *suffix *}}@$1@g" "${etcd_temp_file}"
|
|
sed -i -e "s@{{ *port *}}@$2@g" "${etcd_temp_file}"
|
|
sed -i -e "s@{{ *server_port *}}@$3@g" "${etcd_temp_file}"
|
|
sed -i -e "s@{{ *cpulimit *}}@\"$4\"@g" "${etcd_temp_file}"
|
|
sed -i -e "s@{{ *srv_kube_path *}}@/etc/srv/kubernetes@g" "${etcd_temp_file}"
|
|
sed -i -e "s@{{ *hostname *}}@$host_name@g" "${etcd_temp_file}"
|
|
sed -i -e "s@{{ *etcd_cluster *}}@$etcd_cluster@g" "${etcd_temp_file}"
|
|
sed -i -e "s@{{ *storage_backend *}}@${STORAGE_BACKEND:-}@g" "${temp_file}"
|
|
if [[ "${STORAGE_BACKEND:-}" == "etcd3" ]]; then
|
|
sed -i -e "s@{{ *quota_bytes *}}@--quota-backend-bytes=4294967296@g" "${temp_file}"
|
|
else
|
|
sed -i -e "s@{{ *quota_bytes *}}@@g" "${temp_file}"
|
|
fi
|
|
sed -i -e "s@{{ *cluster_state *}}@$cluster_state@g" "${etcd_temp_file}"
|
|
if [[ -n "${ETCD_IMAGE:-}" ]]; then
|
|
sed -i -e "s@{{ *pillar\.get('etcd_docker_tag', '\(.*\)') *}}@${ETCD_IMAGE}@g" "${etcd_temp_file}"
|
|
else
|
|
sed -i -e "s@{{ *pillar\.get('etcd_docker_tag', '\(.*\)') *}}@\1@g" "${etcd_temp_file}"
|
|
fi
|
|
sed -i -e "s@{{ *etcd_protocol *}}@$etcd_protocol@g" "${etcd_temp_file}"
|
|
sed -i -e "s@{{ *etcd_creds *}}@$etcd_creds@g" "${etcd_temp_file}"
|
|
if [[ -n "${ETCD_VERSION:-}" ]]; then
|
|
sed -i -e "s@{{ *pillar\.get('etcd_version', '\(.*\)') *}}@${ETCD_VERSION}@g" "${etcd_temp_file}"
|
|
else
|
|
sed -i -e "s@{{ *pillar\.get('etcd_version', '\(.*\)') *}}@\1@g" "${etcd_temp_file}"
|
|
fi
|
|
# Replace the volume host path
|
|
sed -i -e "s@/mnt/master-pd/var/etcd@/mnt/disks/master-pd/var/etcd@g" "${etcd_temp_file}"
|
|
mv "${etcd_temp_file}" /etc/kubernetes/manifests
|
|
}
|
|
|
|
# Starts etcd server pod (and etcd-events pod if needed).
|
|
# More specifically, it prepares dirs and files, sets the variable value
|
|
# in the manifests, and copies them to /etc/kubernetes/manifests.
|
|
start_etcd_servers() {
|
|
if [ -d /etc/etcd ]; then
|
|
rm -rf /etc/etcd
|
|
fi
|
|
if [ -e /etc/default/etcd ]; then
|
|
rm -f /etc/default/etcd
|
|
fi
|
|
if [ -e /etc/systemd/system/etcd.service ]; then
|
|
rm -f /etc/systemd/system/etcd.service
|
|
fi
|
|
if [ -e /etc/init.d/etcd ]; then
|
|
rm -f /etc/init.d/etcd
|
|
fi
|
|
prepare_log_file /var/log/etcd.log
|
|
prepare_etcd_manifest "" "2379" "2380" "200m" "etcd.manifest"
|
|
|
|
prepare_log_file /var/log/etcd-events.log
|
|
prepare_etcd_manifest "-events" "4002" "2381" "100m" "etcd-events.manifest"
|
|
}
|
|
|
|
# Calculates the following variables based on env variables, which will be used
|
|
# by the manifests of several kube-master components.
|
|
# CLOUD_CONFIG_OPT
|
|
# CLOUD_CONFIG_VOLUME
|
|
# CLOUD_CONFIG_MOUNT
|
|
# DOCKER_REGISTRY
|
|
compute_master_manifest_variables() {
|
|
CLOUD_CONFIG_OPT=""
|
|
CLOUD_CONFIG_VOLUME=""
|
|
CLOUD_CONFIG_MOUNT=""
|
|
if [ -f /etc/gce.conf ]; then
|
|
CLOUD_CONFIG_OPT="--cloud-config=/etc/gce.conf"
|
|
CLOUD_CONFIG_VOLUME="{\"name\": \"cloudconfigmount\",\"hostPath\": {\"path\": \"/etc/gce.conf\"}},"
|
|
CLOUD_CONFIG_MOUNT="{\"name\": \"cloudconfigmount\",\"mountPath\": \"/etc/gce.conf\", \"readOnly\": true},"
|
|
fi
|
|
DOCKER_REGISTRY="gcr.io/google_containers"
|
|
if [ -n "${KUBE_DOCKER_REGISTRY:-}" ]; then
|
|
DOCKER_REGISTRY="${KUBE_DOCKER_REGISTRY}"
|
|
fi
|
|
}
|
|
|
|
# A helper function for removing salt configuration and comments from a file.
|
|
# This is mainly for preparing a manifest file.
|
|
# $1: Full path of the file to manipulate
|
|
remove_salt_config_comments() {
|
|
# Remove salt configuration
|
|
sed -i "/^[ |\t]*{[#|%]/d" $1
|
|
# Remove comments
|
|
sed -i "/^[ |\t]*#/d" $1
|
|
}
|
|
|
|
# Starts k8s apiserver.
|
|
# It prepares the log file, loads the docker image, calculates variables, sets them
|
|
# in the manifest file, and then copies the manifest file to /etc/kubernetes/manifests.
|
|
#
|
|
# Assumed vars (which are calculated in function compute_master_manifest_variables)
|
|
# CLOUD_CONFIG_OPT
|
|
# CLOUD_CONFIG_VOLUME
|
|
# CLOUD_CONFIG_MOUNT
|
|
# DOCKER_REGISTRY
|
|
start_kube_apiserver() {
|
|
prepare_log_file /var/log/kube-apiserver.log
|
|
# Load the docker image from file.
|
|
echo "Try to load docker image file kube-apiserver.tar"
|
|
timeout 30 docker load -i /home/kubernetes/kube-docker-files/kube-apiserver.tar
|
|
|
|
# Calculate variables and assemble the command line.
|
|
params="${APISERVER_TEST_ARGS:-} ${API_SERVER_TEST_LOG_LEVEL:-"--v=2"} ${CLOUD_CONFIG_OPT}"
|
|
params="${params} --cloud-provider=gce"
|
|
params="${params} --address=127.0.0.1"
|
|
params="${params} --etcd-servers=http://127.0.0.1:2379"
|
|
params="${params} --tls-cert-file=/etc/srv/kubernetes/server.cert"
|
|
params="${params} --tls-private-key-file=/etc/srv/kubernetes/server.key"
|
|
params="${params} --secure-port=443"
|
|
params="${params} --client-ca-file=/etc/srv/kubernetes/ca.crt"
|
|
params="${params} --token-auth-file=/etc/srv/kubernetes/known_tokens.csv"
|
|
params="${params} --basic-auth-file=/etc/srv/kubernetes/basic_auth.csv"
|
|
params="${params} --allow-privileged=true"
|
|
params="${params} --authorization-policy-file=/etc/srv/kubernetes/abac-authz-policy.jsonl"
|
|
params="${params} --etcd-servers-overrides=/events#http://127.0.0.1:4002"
|
|
|
|
if [[ -n "${STORAGE_BACKEND:-}" ]]; then
|
|
params="${params} --storage-backend=${STORAGE_BACKEND}"
|
|
fi
|
|
if [ -n "${NUM_NODES:-}" ]; then
|
|
# If the cluster is large, increase max-requests-inflight limit in apiserver.
|
|
if [[ "${NUM_NODES}" -ge 1000 ]]; then
|
|
params+=" --max-requests-inflight=1500 --max-mutating-requests-inflight=500"
|
|
fi
|
|
# Set amount of memory available for apiserver based on number of nodes.
|
|
# TODO: Once we start setting proper requests and limits for apiserver
|
|
# we should reuse the same logic here instead of current heuristic.
|
|
params="${params} --target-ram-mb=$((${NUM_NODES} * 60))"
|
|
fi
|
|
if [ -n "${SERVICE_CLUSTER_IP_RANGE:-}" ]; then
|
|
params="${params} --service-cluster-ip-range=${SERVICE_CLUSTER_IP_RANGE}"
|
|
fi
|
|
if [ -n "${ETCD_QUORUM_READ:-}" ]; then
|
|
params="${params} --etcd-quorum-read=${ETCD_QUORUM_READ}"
|
|
fi
|
|
|
|
local admission_controller_config_mount=""
|
|
local admission_controller_config_volume=""
|
|
local image_policy_webhook_config_mount=""
|
|
local image_policy_webhook_config_volume=""
|
|
if [ -n "${ADMISSION_CONTROL:-}" ]; then
|
|
params="${params} --admission-control=${ADMISSION_CONTROL}"
|
|
if [ ${ADMISSION_CONTROL} == *"ImagePolicyWebhook"* ]; then
|
|
params+=" --admission-control-config-file=/etc/admission_controller.config"
|
|
# Mount the file to configure admission controllers if ImagePolicyWebhook is set.
|
|
admission_controller_config_mount="{\"name\": \"admissioncontrollerconfigmount\",\"mountPath\": \"/etc/admission_controller.config\", \"readOnly\": false},"
|
|
admission_controller_config_volume="{\"name\": \"admissioncontrollerconfigmount\",\"hostPath\": {\"path\": \"/etc/admission_controller.config\"}},"
|
|
# Mount the file to configure the ImagePolicyWebhook's webhook.
|
|
image_policy_webhook_config_mount="{\"name\": \"imagepolicywebhookconfigmount\",\"mountPath\": \"/etc/gcp_image_review.config\", \"readOnly\": false},"
|
|
image_policy_webhook_config_volume="{\"name\": \"imagepolicywebhookconfigmount\",\"hostPath\": {\"path\": \"/etc/gcp_image_review.config\"}},"
|
|
fi
|
|
fi
|
|
|
|
if [ -n "${KUBE_APISERVER_REQUEST_TIMEOUT:-}" ]; then
|
|
params="${params} --min-request-timeout=${KUBE_APISERVER_REQUEST_TIMEOUT}"
|
|
fi
|
|
if [ -n "${RUNTIME_CONFIG:-}" ]; then
|
|
params="${params} --runtime-config=${RUNTIME_CONFIG}"
|
|
fi
|
|
if [ -n "${PROJECT_ID:-}" ] && [ -n "${TOKEN_URL:-}" ] && [ -n "${TOKEN_BODY:-}" ] && [ -n "${NODE_NETWORK:-}" ]; then
|
|
readonly vm_external_ip=$(curl --retry 5 --retry-delay 3 --fail --silent -H 'Metadata-Flavor: Google' "http://metadata/computeMetadata/v1/instance/network-interfaces/0/access-configs/0/external-ip")
|
|
params="${params} --advertise-address=${vm_external_ip}"
|
|
params="${params} --ssh-user=${PROXY_SSH_USER}"
|
|
params="${params} --ssh-keyfile=/etc/srv/sshproxy/.sshkeyfile"
|
|
elif [ -n "${MASTER_ADVERTISE_ADDRESS:-}" ]; then
|
|
params="${params} --advertise-address=${MASTER_ADVERTISE_ADDRESS}"
|
|
fi
|
|
readonly kube_apiserver_docker_tag=$(cat /home/kubernetes/kube-docker-files/kube-apiserver.docker_tag)
|
|
|
|
local webhook_authn_config_mount=""
|
|
local webhook_authn_config_volume=""
|
|
if [ -n "${GCP_AUTHN_URL:-}" ]; then
|
|
params="${params} --authentication-token-webhook-config-file=/etc/gcp_authn.config"
|
|
webhook_authn_config_mount="{\"name\": \"webhookauthnconfigmount\",\"mountPath\": \"/etc/gcp_authn.config\", \"readOnly\": false},"
|
|
webhook_authn_config_volume="{\"name\": \"webhookauthnconfigmount\",\"hostPath\": {\"path\": \"/etc/gcp_authn.config\"}},"
|
|
fi
|
|
|
|
params="${params} --authorization-mode=ABAC"
|
|
local webhook_config_mount=""
|
|
local webhook_config_volume=""
|
|
if [ -n "${GCP_AUTHZ_URL:-}" ]; then
|
|
params="${params},Webhook --authorization-webhook-config-file=/etc/gcp_authz.config"
|
|
webhook_config_mount="{\"name\": \"webhookconfigmount\",\"mountPath\": \"/etc/gcp_authz.config\", \"readOnly\": false},"
|
|
webhook_config_volume="{\"name\": \"webhookconfigmount\",\"hostPath\": {\"path\": \"/etc/gcp_authz.config\"}},"
|
|
fi
|
|
|
|
src_dir="/home/kubernetes/kube-manifests/kubernetes/gci-trusty"
|
|
|
|
if [[ -n "${KUBE_USER:-}" ]]; then
|
|
local -r abac_policy_json="${src_dir}/abac-authz-policy.jsonl"
|
|
remove_salt_config_comments "${abac_policy_json}"
|
|
sed -i -e "s@{{kube_user}}@${KUBE_USER}@g" "${abac_policy_json}"
|
|
cp "${abac_policy_json}" /etc/srv/kubernetes/
|
|
fi
|
|
|
|
src_file="${src_dir}/kube-apiserver.manifest"
|
|
remove_salt_config_comments "${src_file}"
|
|
# Evaluate variables
|
|
sed -i -e "s@{{params}}@${params}@g" "${src_file}"
|
|
sed -i -e "s@{{srv_kube_path}}@/etc/srv/kubernetes@g" "${src_file}"
|
|
sed -i -e "s@{{srv_sshproxy_path}}@/etc/srv/sshproxy@g" "${src_file}"
|
|
sed -i -e "s@{{cloud_config_mount}}@${CLOUD_CONFIG_MOUNT}@g" "${src_file}"
|
|
sed -i -e "s@{{cloud_config_volume}}@${CLOUD_CONFIG_VOLUME}@g" "${src_file}"
|
|
sed -i -e "s@{{pillar\['kube_docker_registry'\]}}@${DOCKER_REGISTRY}@g" "${src_file}"
|
|
sed -i -e "s@{{pillar\['kube-apiserver_docker_tag'\]}}@${kube_apiserver_docker_tag}@g" "${src_file}"
|
|
sed -i -e "s@{{pillar\['allow_privileged'\]}}@true@g" "${src_file}"
|
|
sed -i -e "s@{{secure_port}}@443@g" "${src_file}"
|
|
sed -i -e "s@{{secure_port}}@8080@g" "${src_file}"
|
|
sed -i -e "s@{{additional_cloud_config_mount}}@@g" "${src_file}"
|
|
sed -i -e "s@{{additional_cloud_config_volume}}@@g" "${src_file}"
|
|
sed -i -e "s@{{webhook_authn_config_mount}}@${webhook_authn_config_mount}@g" "${src_file}"
|
|
sed -i -e "s@{{webhook_authn_config_volume}}@${webhook_authn_config_volume}@g" "${src_file}"
|
|
sed -i -e "s@{{webhook_config_mount}}@${webhook_config_mount}@g" "${src_file}"
|
|
sed -i -e "s@{{webhook_config_volume}}@${webhook_config_volume}@g" "${src_file}"
|
|
sed -i -e "s@{{admission_controller_config_mount}}@${admission_controller_config_mount}@g" "${src_file}"
|
|
sed -i -e "s@{{admission_controller_config_volume}}@${admission_controller_config_volume}@g" "${src_file}"
|
|
sed -i -e "s@{{image_policy_webhook_config_mount}}@${image_policy_webhook_config_mount}@g" "${src_file}"
|
|
sed -i -e "s@{{image_policy_webhook_config_volume}}@${image_policy_webhook_config_volume}@g" "${src_file}"
|
|
|
|
cp "${src_file}" /etc/kubernetes/manifests
|
|
}
|
|
|
|
# Starts k8s controller manager.
|
|
# It prepares the log file, loads the docker image, calculates variables, sets them
|
|
# in the manifest file, and then copies the manifest file to /etc/kubernetes/manifests.
|
|
#
|
|
# Assumed vars (which are calculated in function compute_master_manifest_variables)
|
|
# CLOUD_CONFIG_OPT
|
|
# CLOUD_CONFIG_VOLUME
|
|
# CLOUD_CONFIG_MOUNT
|
|
# DOCKER_REGISTRY
|
|
start_kube_controller_manager() {
|
|
prepare_log_file /var/log/kube-controller-manager.log
|
|
# Load the docker image from file.
|
|
echo "Try to load docker image file kube-controller-manager.tar"
|
|
timeout 30 docker load -i /home/kubernetes/kube-docker-files/kube-controller-manager.tar
|
|
|
|
# Calculate variables and assemble the command line.
|
|
params="--master=127.0.0.1:8080 --cloud-provider=gce --root-ca-file=/etc/srv/kubernetes/ca.crt --service-account-private-key-file=/etc/srv/kubernetes/server.key ${CONTROLLER_MANAGER_TEST_ARGS:-} ${CLOUD_CONFIG_OPT}"
|
|
if [ -n "${INSTANCE_PREFIX:-}" ]; then
|
|
params="${params} --cluster-name=${INSTANCE_PREFIX}"
|
|
fi
|
|
if [ -n "${CLUSTER_IP_RANGE:-}" ]; then
|
|
params="${params} --cluster-cidr=${CLUSTER_IP_RANGE}"
|
|
fi
|
|
if [ -n "${SERVICE_CLUSTER_IP_RANGE:-}" ]; then
|
|
params="${params} --service-cluster-ip-range=${SERVICE_CLUSTER_IP_RANGE}"
|
|
fi
|
|
if [ "${ALLOCATE_NODE_CIDRS:-}" = "true" ]; then
|
|
params="${params} --allocate-node-cidrs=${ALLOCATE_NODE_CIDRS}"
|
|
fi
|
|
if [ -n "${TERMINATED_POD_GC_THRESHOLD:-}" ]; then
|
|
params="${params} --terminated-pod-gc-threshold=${TERMINATED_POD_GC_THRESHOLD}"
|
|
fi
|
|
log_level="--v=2"
|
|
if [ -n "${CONTROLLER_MANAGER_TEST_LOG_LEVEL:-}" ]; then
|
|
log_level="${CONTROLLER_MANAGER_TEST_LOG_LEVEL}"
|
|
fi
|
|
params="${params} ${log_level}"
|
|
readonly kube_rc_docker_tag=$(cat /home/kubernetes/kube-docker-files/kube-controller-manager.docker_tag)
|
|
|
|
src_file="/home/kubernetes/kube-manifests/kubernetes/gci-trusty/kube-controller-manager.manifest"
|
|
remove_salt_config_comments "${src_file}"
|
|
# Evaluate variables
|
|
sed -i -e "s@{{srv_kube_path}}@/etc/srv/kubernetes@g" "${src_file}"
|
|
sed -i -e "s@{{pillar\['kube_docker_registry'\]}}@${DOCKER_REGISTRY}@g" "${src_file}"
|
|
sed -i -e "s@{{pillar\['kube-controller-manager_docker_tag'\]}}@${kube_rc_docker_tag}@g" "${src_file}"
|
|
sed -i -e "s@{{params}}@${params}@g" "${src_file}"
|
|
sed -i -e "s@{{cloud_config_mount}}@${CLOUD_CONFIG_MOUNT}@g" "${src_file}"
|
|
sed -i -e "s@{{cloud_config_volume}}@${CLOUD_CONFIG_VOLUME}@g" "${src_file}"
|
|
sed -i -e "s@{{additional_cloud_config_mount}}@@g" "${src_file}"
|
|
sed -i -e "s@{{additional_cloud_config_volume}}@@g" "${src_file}"
|
|
cp "${src_file}" /etc/kubernetes/manifests
|
|
}
|
|
|
|
# Starts k8s scheduler.
|
|
# It prepares the log file, loads the docker image, calculates variables, sets them
|
|
# in the manifest file, and then copies the manifest file to /etc/kubernetes/manifests.
|
|
#
|
|
# Assumed vars (which are calculated in compute_master_manifest_variables())
|
|
# DOCKER_REGISTRY
|
|
start_kube_scheduler() {
|
|
prepare_log_file /var/log/kube-scheduler.log
|
|
kube_home="home/kubernetes"
|
|
# Load the docker image from file.
|
|
echo "Try to load docker image file kube-scheduler.tar"
|
|
timeout 30 docker load -i "${kube_home}/kube-docker-files/kube-scheduler.tar"
|
|
|
|
# Calculate variables and set them in the manifest.
|
|
log_level="--v=2"
|
|
if [ -n "${SCHEDULER_TEST_LOG_LEVEL:-}" ]; then
|
|
log_level="${SCHEDULER_TEST_LOG_LEVEL}"
|
|
fi
|
|
params="${log_level} ${SCHEDULER_TEST_ARGS:-}"
|
|
if [ -n "${SCHEDULING_ALGORITHM_PROVIDER:-}" ]; then
|
|
params="${params} --algorithm-provider=${SCHEDULING_ALGORITHM_PROVIDER}"
|
|
fi
|
|
|
|
readonly kube_scheduler_docker_tag=$(cat "${kube_home}/kube-docker-files/kube-scheduler.docker_tag")
|
|
|
|
# Remove salt comments and replace variables with values
|
|
src_file="${kube_home}/kube-manifests/kubernetes/gci-trusty/kube-scheduler.manifest"
|
|
remove_salt_config_comments "${src_file}"
|
|
sed -i -e "s@{{params}}@${params}@g" "${src_file}"
|
|
sed -i -e "s@{{pillar\['kube_docker_registry'\]}}@${DOCKER_REGISTRY}@g" "${src_file}"
|
|
sed -i -e "s@{{pillar\['kube-scheduler_docker_tag'\]}}@${kube_scheduler_docker_tag}@g" "${src_file}"
|
|
cp "${src_file}" /etc/kubernetes/manifests
|
|
}
|
|
|
|
# Starts k8s cluster autoscaler.
|
|
# Assumed vars (which are calculated in function compute-master-manifest-variables)
|
|
# CLOUD_CONFIG_OPT
|
|
# CLOUD_CONFIG_VOLUME
|
|
# CLOUD_CONFIG_MOUNT
|
|
start_cluster_autoscaler() {
|
|
if [ "${ENABLE_CLUSTER_AUTOSCALER:-}" = "true" ]; then
|
|
prepare-log-file /var/log/cluster-autoscaler.log
|
|
|
|
# Remove salt comments and replace variables with values
|
|
src_file="${kube_home}/kube-manifests/kubernetes/gci-trusty/cluster-autoscaler.manifest"
|
|
remove_salt_config_comments "${src_file}"
|
|
|
|
params="${AUTOSCALER_MIG_CONFIG} ${CLOUD_CONFIG_OPT}"
|
|
sed -i -e "s@{{params}}@${params}@g" "${src_file}"
|
|
sed -i -e "s@{{cloud_config_mount}}@${CLOUD_CONFIG_MOUNT}@g" "${src_file}"
|
|
sed -i -e "s@{{cloud_config_volume}}@${CLOUD_CONFIG_VOLUME}@g" "${src_file}"
|
|
cp "${src_file}" /etc/kubernetes/manifests
|
|
fi
|
|
}
|
|
|
|
# Starts rescheduler.
|
|
start-rescheduler() {
|
|
if [[ "${ENABLE_RESCHEDULER:-}" == "true" ]]; then
|
|
prepare-log-file /var/log/rescheduler.log
|
|
cp "${KUBE_HOME}/kube-manifests/kubernetes/gci-trusty/rescheduler.manifest" \
|
|
/etc/kubernetes/manifests/
|
|
fi
|
|
}
|
|
|
|
# Starts a fluentd static pod for logging for gcp in case master is not registered.
|
|
start_fluentd_static_pod() {
|
|
if [[ "${ENABLE_NODE_LOGGING:-}" == "true" ]] && \
|
|
[[ "${LOGGING_DESTINATION:-}" == "gcp" ]] && \
|
|
[[ "${KUBERNETES_MASTER:-}" == "true" ]] && \
|
|
[[ "${REGISTER_MASTER_KUBELET:-false}" == "false" ]]; then
|
|
cp /home/kubernetes/kube-manifests/kubernetes/fluentd-gcp.yaml /etc/kubernetes/manifests/
|
|
fi
|
|
}
|
|
|
|
# A helper function for copying addon manifests and set dir/files
|
|
# permissions.
|
|
# $1: addon category under /etc/kubernetes
|
|
# $2: manifest source dir
|
|
setup_addon_manifests() {
|
|
src_dir="/home/kubernetes/kube-manifests/kubernetes/gci-trusty/$2"
|
|
dst_dir="/etc/kubernetes/$1/$2"
|
|
if [ ! -d "${dst_dir}" ]; then
|
|
mkdir -p "${dst_dir}"
|
|
fi
|
|
files=$(find "${src_dir}" -maxdepth 1 -name "*.yaml")
|
|
if [ -n "${files}" ]; then
|
|
cp "${src_dir}/"*.yaml "${dst_dir}"
|
|
fi
|
|
files=$(find "${src_dir}" -maxdepth 1 -name "*.json")
|
|
if [ -n "${files}" ]; then
|
|
cp "${src_dir}/"*.json "${dst_dir}"
|
|
fi
|
|
files=$(find "${src_dir}" -maxdepth 1 -name "*.yaml.in")
|
|
if [ -n "${files}" ]; then
|
|
cp "${src_dir}/"*.yaml.in "${dst_dir}"
|
|
fi
|
|
chown -R root:root "${dst_dir}"
|
|
chmod 755 "${dst_dir}"
|
|
chmod 644 "${dst_dir}"/*
|
|
}
|
|
|
|
# Prepares the manifests of k8s addons, and starts the addon manager.
|
|
start_kube_addons() {
|
|
addon_src_dir="/home/kubernetes/kube-manifests/kubernetes/gci-trusty"
|
|
addon_dst_dir="/etc/kubernetes/addons"
|
|
# Set up manifests of other addons.
|
|
if [ "${ENABLE_CLUSTER_MONITORING:-}" = "influxdb" ] || \
|
|
[ "${ENABLE_CLUSTER_MONITORING:-}" = "google" ] || \
|
|
[ "${ENABLE_CLUSTER_MONITORING:-}" = "standalone" ] || \
|
|
[ "${ENABLE_CLUSTER_MONITORING:-}" = "googleinfluxdb" ]; then
|
|
file_dir="cluster-monitoring/${ENABLE_CLUSTER_MONITORING}"
|
|
setup_addon_manifests "addons" "${file_dir}"
|
|
# Replace the salt configurations with variable values.
|
|
base_metrics_memory="140Mi"
|
|
base_eventer_memory="190Mi"
|
|
base_metrics_cpu="80m"
|
|
nanny_memory="90Mi"
|
|
readonly metrics_memory_per_node="4"
|
|
readonly metrics_cpu_per_node="0.5"
|
|
readonly eventer_memory_per_node="500"
|
|
readonly nanny_memory_per_node="200"
|
|
if [ -n "${NUM_NODES:-}" ] && [ "${NUM_NODES}" -ge 1 ]; then
|
|
num_kube_nodes="$((${NUM_NODES}+1))"
|
|
nanny_memory="$((${num_kube_nodes} * ${nanny_memory_per_node} + 90 * 1024))Ki"
|
|
fi
|
|
controller_yaml="${addon_dst_dir}/${file_dir}"
|
|
if [ "${ENABLE_CLUSTER_MONITORING:-}" = "googleinfluxdb" ]; then
|
|
controller_yaml="${controller_yaml}/heapster-controller-combined.yaml"
|
|
else
|
|
controller_yaml="${controller_yaml}/heapster-controller.yaml"
|
|
fi
|
|
remove_salt_config_comments "${controller_yaml}"
|
|
sed -i -e "s@{{ *base_metrics_memory *}}@${base_metrics_memory}@g" "${controller_yaml}"
|
|
sed -i -e "s@{{ *base_metrics_cpu *}}@${base_metrics_cpu}@g" "${controller_yaml}"
|
|
sed -i -e "s@{{ *base_eventer_memory *}}@${base_eventer_memory}@g" "${controller_yaml}"
|
|
sed -i -e "s@{{ *metrics_memory_per_node *}}@${metrics_memory_per_node}@g" "${controller_yaml}"
|
|
sed -i -e "s@{{ *eventer_memory_per_node *}}@${eventer_memory_per_node}@g" "${controller_yaml}"
|
|
sed -i -e "s@{{ *nanny_memory *}}@${nanny_memory}@g" "${controller_yaml}"
|
|
sed -i -e "s@{{ *metrics_cpu_per_node *}}@${metrics_cpu_per_node}@g" "${controller_yaml}"
|
|
fi
|
|
if [ "${ENABLE_L7_LOADBALANCING:-}" = "glbc" ]; then
|
|
setup_addon_manifests "addons" "cluster-loadbalancing/glbc"
|
|
glbc_yaml="${addon_dst_dir}/cluster-loadbalancing/glbc/glbc.yaml"
|
|
remove_salt_config_comments "${glbc_yaml}"
|
|
sed -i -e "s@{{ *kube_uid *}}@${KUBE_UID:-}@g" "${glbc_yaml}"
|
|
fi
|
|
if [ "${ENABLE_CLUSTER_DNS:-}" = "true" ]; then
|
|
setup_addon_manifests "addons" "dns"
|
|
dns_controller_file="${addon_dst_dir}/dns/kubedns-controller.yaml"
|
|
dns_svc_file="${addon_dst_dir}/dns/kubedns-svc.yaml"
|
|
mv "${addon_dst_dir}/dns/kubedns-controller.yaml.in" "${dns_controller_file}"
|
|
mv "${addon_dst_dir}/dns/kubedns-svc.yaml.in" "${dns_svc_file}"
|
|
# Replace the salt configurations with variable values.
|
|
sed -i -e "s@{{ *pillar\['dns_domain'\] *}}@${DNS_DOMAIN}@g" "${dns_controller_file}"
|
|
sed -i -e "s@{{ *pillar\['dns_server'\] *}}@${DNS_SERVER_IP}@g" "${dns_svc_file}"
|
|
|
|
if [[ "${ENABLE_DNS_HORIZONTAL_AUTOSCALER:-}" == "true" ]]; then
|
|
setup_addon_manifests "addons" "dns-horizontal-autoscaler"
|
|
fi
|
|
|
|
if [[ "${FEDERATION:-}" == "true" ]]; then
|
|
FEDERATIONS_DOMAIN_MAP="${FEDERATIONS_DOMAIN_MAP:-}"
|
|
if [[ -z "${FEDERATIONS_DOMAIN_MAP}" && -n "${FEDERATION_NAME:-}" && -n "${DNS_ZONE_NAME:-}" ]]; then
|
|
FEDERATIONS_DOMAIN_MAP="${FEDERATION_NAME}=${DNS_ZONE_NAME}"
|
|
fi
|
|
if [[ -n "${FEDERATIONS_DOMAIN_MAP}" ]]; then
|
|
sed -i -e "s@{{ *pillar\['federations_domain_map'\] *}}@- --federations=${FEDERATIONS_DOMAIN_MAP}@g" "${dns_controller_file}"
|
|
else
|
|
sed -i -e "/{{ *pillar\['federations_domain_map'\] *}}/d" "${dns_controller_file}"
|
|
fi
|
|
else
|
|
sed -i -e "/{{ *pillar\['federations_domain_map'\] *}}/d" "${dns_controller_file}"
|
|
fi
|
|
fi
|
|
if [ "${ENABLE_CLUSTER_REGISTRY:-}" = "true" ]; then
|
|
setup_addon_manifests "addons" "registry"
|
|
registry_pv_file="${addon_dst_dir}/registry/registry-pv.yaml"
|
|
registry_pvc_file="${addon_dst_dir}/registry/registry-pvc.yaml"
|
|
mv "${addon_dst_dir}/registry/registry-pv.yaml.in" "${registry_pv_file}"
|
|
mv "${addon_dst_dir}/registry/registry-pvc.yaml.in" "${registry_pvc_file}"
|
|
# Replace the salt configurations with variable values.
|
|
remove_salt_config_comments "${controller_yaml}"
|
|
sed -i -e "s@{{ *pillar\['cluster_registry_disk_size'\] *}}@${CLUSTER_REGISTRY_DISK_SIZE}@g" "${registry_pv_file}"
|
|
sed -i -e "s@{{ *pillar\['cluster_registry_disk_size'\] *}}@${CLUSTER_REGISTRY_DISK_SIZE}@g" "${registry_pvc_file}"
|
|
sed -i -e "s@{{ *pillar\['cluster_registry_disk_name'\] *}}@${CLUSTER_REGISTRY_DISK}@g" "${registry_pvc_file}"
|
|
fi
|
|
if [ "${ENABLE_NODE_LOGGING:-}" = "true" ] && \
|
|
[ "${LOGGING_DESTINATION:-}" = "elasticsearch" ] && \
|
|
[ "${ENABLE_CLUSTER_LOGGING:-}" = "true" ]; then
|
|
setup_addon_manifests "addons" "fluentd-elasticsearch"
|
|
fi
|
|
if [ "${ENABLE_NODE_LOGGING:-}" = "true" ] && \
|
|
[ "${LOGGING_DESTINATION:-}" = "gcp" ] ; then
|
|
setup_addon_manifests "addons" "fluentd-gcp"
|
|
fi
|
|
if [ "${ENABLE_CLUSTER_UI:-}" = "true" ]; then
|
|
setup_addon_manifests "addons" "dashboard"
|
|
fi
|
|
if echo "${ADMISSION_CONTROL:-}" | grep -q "LimitRanger"; then
|
|
setup_addon_manifests "admission-controls" "limit-range"
|
|
fi
|
|
if [[ "${ENABLE_DEFAULT_STORAGE_CLASS:-}" == "true" ]]; then
|
|
setup-addon-manifests "addons" "storage-class/gce"
|
|
fi
|
|
|
|
# Place addon manager pod manifest
|
|
cp "${addon_src_dir}/kube-addon-manager.yaml" /etc/kubernetes/manifests
|
|
}
|
|
|
|
reset_motd() {
|
|
# kubelet is installed both on the master and nodes, and the version is easy to parse (unlike kubectl)
|
|
readonly version="$(/usr/bin/kubelet --version=true | cut -f2 -d " ")"
|
|
# This logic grabs either a release tag (v1.2.1 or v1.2.1-alpha.1),
|
|
# or the git hash that's in the build info.
|
|
gitref="$(echo "${version}" | sed -r "s/(v[0-9]+\.[0-9]+\.[0-9]+)(-[a-z]+\.[0-9]+)?.*/\1\2/g")"
|
|
devel=""
|
|
if [ "${gitref}" != "${version}" ]; then
|
|
devel="
|
|
Note: This looks like a development version, which might not be present on GitHub.
|
|
If it isn't, the closest tag is at:
|
|
https://github.com/kubernetes/kubernetes/tree/${gitref}
|
|
"
|
|
gitref="${version//*+/}"
|
|
fi
|
|
cat > /etc/motd <<EOF
|
|
Welcome to Kubernetes ${version}!
|
|
You can find documentation for Kubernetes at:
|
|
http://docs.kubernetes.io/
|
|
You can download the build image for this release at:
|
|
https://storage.googleapis.com/kubernetes-release/release/${version}/kubernetes-src.tar.gz
|
|
It is based on the Kubernetes source at:
|
|
https://github.com/kubernetes/kubernetes/tree/${gitref}
|
|
${devel}
|
|
For Kubernetes copyright and licensing information, see:
|
|
/home/kubernetes/LICENSES
|
|
EOF
|
|
}
|