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134 lines
4.8 KiB
Bash
Executable File
134 lines
4.8 KiB
Bash
Executable File
#!/bin/bash
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# Copyright 2015 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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readonly root=$(dirname "${BASH_SOURCE}")
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## Contains configuration values for the CentOS cluster
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# The user should have sudo privilege
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export MASTER=${MASTER:-"centos@172.10.0.11"}
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export MASTER_IP=${MASTER#*@}
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# Define all your master nodes,
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# And separated with blank space like <user_1@ip_1> <user_2@ip_2> <user_3@ip_3>.
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# The user should have sudo privilege
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export MASTERS="${MASTERS:-$MASTER}"
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# length-of <arg0>
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# Get the length of specific arg0, could be a space-separate string or array.
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function length-of() {
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local len=0
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for part in $1; do
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let ++len
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done
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echo $len
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}
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# Number of nodes in your cluster.
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export NUM_MASTERS="${NUM_MASTERS:-$(length-of "$MASTERS")}"
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# Get default master advertise address: first master node.
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function default-advertise-address() {
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# get the first master node
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local masters_array=(${MASTERS})
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local master=${masters_array[0]}
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echo ${master#*@}
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}
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# Define advertise address of masters, could be a load balancer address.
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# If not provided, the default is ip of first master node.
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export MASTER_ADVERTISE_ADDRESS="${MASTER_ADVERTISE_ADDRESS:-$(default-advertise-address)}"
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export MASTER_ADVERTISE_IP="${MASTER_ADVERTISE_IP:-$(getent hosts "${MASTER_ADVERTISE_ADDRESS}" | awk '{print $1; exit}')}"
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# Define all your minion nodes,
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# And separated with blank space like <user_1@ip_1> <user_2@ip_2> <user_3@ip_3>.
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# The user should have sudo privilege
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export NODES="${NODES:-"centos@172.10.0.12 centos@172.10.0.13"}"
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# Number of nodes in your cluster.
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export NUM_NODES="${NUM_NODES:-$(length-of "$NODES")}"
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# Should be removed when NUM_NODES is deprecated in validate-cluster.sh
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export NUM_NODES="${NUM_NODES}"
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# By default, the cluster will use the etcd installed on master.
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function concat-etcd-servers() {
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local etcd_servers=""
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for master in ${MASTERS}; do
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local master_ip=${master#*@}
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local prefix=""
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if [ -n "$etcd_servers" ]; then
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prefix="${etcd_servers},"
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fi
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etcd_servers="${prefix}https://${master_ip}:2379"
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done
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echo "$etcd_servers"
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}
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export ETCD_SERVERS="$(concat-etcd-servers)"
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# By default, etcd cluster will use runtime configuration
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# https://coreos.com/etcd/docs/latest/v2/runtime-configuration.html
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# Get etc initial cluster and store in ETCD_INITIAL_CLUSTER
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function concat-etcd-initial-cluster() {
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local etcd_initial_cluster=""
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local num_infra=0
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for master in ${MASTERS}; do
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local master_ip="${master#*@}"
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if [ -n "$etcd_initial_cluster" ]; then
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etcd_initial_cluster+=","
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fi
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etcd_initial_cluster+="infra${num_infra}=https://${master_ip}:2380"
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let ++num_infra
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done
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echo "$etcd_initial_cluster"
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}
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export ETCD_INITIAL_CLUSTER="$(concat-etcd-initial-cluster)"
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CERT_DIR="${CERT_DIR:-${root}/ca-cert}"
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mkdir -p "${CERT_DIR}"
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# CERT_DIR path must be absolute.
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export CERT_DIR="$(cd "${CERT_DIR}"; pwd)"
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# define the IP range used for service cluster IPs.
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# according to rfc 1918 ref: https://tools.ietf.org/html/rfc1918 choose a private ip range here.
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export SERVICE_CLUSTER_IP_RANGE=${SERVICE_CLUSTER_IP_RANGE:-"192.168.3.0/24"}
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# Optional: Install cluster DNS.
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ENABLE_CLUSTER_DNS="${KUBE_ENABLE_CLUSTER_DNS:-true}"
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# DNS_SERVER_IP must be a IP in SERVICE_CLUSTER_IP_RANGE
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DNS_SERVER_IP=${DNS_SERVER_IP:-"192.168.3.100"}
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DNS_DOMAIN=${DNS_DOMAIN:-"cluster.local"}
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# Optional: Install Kubernetes UI
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ENABLE_CLUSTER_UI="${KUBE_ENABLE_CLUSTER_UI:-true}"
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# define the IP range used for flannel overlay network, should not conflict with above SERVICE_CLUSTER_IP_RANGE
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export FLANNEL_NET=${FLANNEL_NET:-"172.16.0.0/16"}
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# Admission Controllers to invoke prior to persisting objects in cluster
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# If we included ResourceQuota, we should keep it at the end of the list to prevent incrementing quota usage prematurely.
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export ADMISSION_CONTROL=${ADMISSION_CONTROL:-"Initializers,NamespaceLifecycle,LimitRanger,ServiceAccount,PersistentVolumeClaimResize,DefaultTolerationSeconds,Priority,PVCProtection,ResourceQuota"}
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# Extra options to set on the Docker command line.
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# This is useful for setting --insecure-registry for local registries.
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export DOCKER_OPTS=${DOCKER_OPTS:-""}
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# Timeouts for process checking on master and minion
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export PROCESS_CHECK_TIMEOUT=${PROCESS_CHECK_TIMEOUT:-180} # seconds.
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unset -f default-advertise-address concat-etcd-servers length-of concat-etcd-initial-cluster
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