finish the multinode ubuntu k8s setup script and guide ,tested ok
This commit is contained in:
Xingyu Chen
201
cluster/ubuntu-cluster/configure.sh
Executable file
201
cluster/ubuntu-cluster/configure.sh
Executable file
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#!/bin/bash
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# Copyright 2015 Google Inc. All rights reserved.
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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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# simple use the sed to replace some ip settings on user's demand
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# Run as root only
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# author @WIZARD-CXY @resouer
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set -e
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function cpMaster(){
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# copy /etc/init files
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cp init_conf/etcd.conf /etc/init/
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cp init_conf/kube-apiserver.conf /etc/init/
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cp init_conf/kube-controller-manager.conf /etc/init/
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cp init_conf/kube-scheduler.conf /etc/init/
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# copy /etc/initd/ files
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cp initd_scripts/etcd /etc/init.d/
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cp initd_scripts/kube-apiserver /etc/init.d/
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cp initd_scripts/kube-controller-manager /etc/init.d/
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cp initd_scripts/kube-scheduler /etc/init.d/
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# copy default configs
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cp default_scripts/etcd /etc/default/
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cp default_scripts/kube-apiserver /etc/default/
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cp default_scripts/kube-scheduler /etc/default/
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cp default_scripts/kube-controller-manager /etc/default/
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}
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function cpMinion(){
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# copy /etc/init files
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cp init_conf/etcd.conf /etc/init/
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cp init_conf/kubelet.conf /etc/init/
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cp init_conf/flanneld.conf /etc/init/
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cp init_conf/kube-proxy.conf /etc/init/
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# copy /etc/initd/ files
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cp initd_scripts/etcd /etc/init.d/
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cp initd_scripts/flanneld /etc/init.d/
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cp initd_scripts/kubelet /etc/init.d/
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cp initd_scripts/kube-proxy /etc/init.d/
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# copy default configs
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cp default_scripts/etcd /etc/default/
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cp default_scripts/flanneld /etc/default/
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cp default_scripts/kube-proxy /etc/default
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cp default_scripts/kubelet /etc/default/
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}
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# check if input IP in machine list
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function inList(){
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if [ "$#" -eq 1 ]; then
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echo -e "\e[0;31mERROR\e[0m: "$1" is not in your machine list."
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exit 1
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fi
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}
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# set values in ETCD_OPTS
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function configEtcd(){
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echo ETCD_OPTS=\"-name $1 -initial-advertise-peer-urls http://$2:2380 -listen-peer-urls http://$2:2380 -initial-cluster-token etcd-cluster-1 -initial-cluster $3 -initial-cluster-state new\" > default_scripts/etcd
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}
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# check root
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if [ "$(id -u)" != "0" ]; then
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echo >&2 "Please run as root"
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exit 1
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fi
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echo "Welcome to use this script to configure k8s setup"
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echo
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PATH=$PATH:/opt/bin
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# use ubuntu
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if ! $(grep Ubuntu /etc/lsb-release > /dev/null 2>&1)
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then
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echo "warning: not detecting a ubuntu system"
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exit 1
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fi
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# check etcd
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if ! $(which etcd > /dev/null)
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then
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echo "warning: etcd binary is not found in the PATH: $PATH"
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exit 1
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fi
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# check kube commands
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if ! $(which kube-apiserver > /dev/null) && ! $(which kubelet > /dev/null)
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then
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echo "warning: kube binaries are not found in the $PATH"
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exit 1
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fi
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# detect the etcd version, we support only etcd 2.0.
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etcdVersion=$(/opt/bin/etcd --version | awk '{print $3}')
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if [ "$etcdVersion" != "2.0.0" ]; then
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echo "We only support 2.0.0 version of etcd"
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exit 1
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fi
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# use an array to record name and ip
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declare -A mm
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ii=1
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# we use static etcd configuration
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# see https://github.com/coreos/etcd/blob/master/Documentation/clustering.md#static
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echo "Please enter all your cluster node ips, MASTER node comes first"
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read -p "And separated with blank space like \"<ip_1> <ip_2> <ip_3>\": " etcdIPs
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for i in $etcdIPs
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do
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name="infra"$ii
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item="$name=http://$i:2380"
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if [ "$ii" == 1 ]; then
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cluster=$item
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else
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cluster="$cluster,$item"
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if [ "$ii" -gt 2 ]; then
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minionIPs="$minionIPs,$i"
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else
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minionIPs="$i"
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fi
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fi
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mm[$i]=$name
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let ii++
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done
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echo
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# input node IPs
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while true; do
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echo "This machine acts as"
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echo -e " both MASTER and MINION: \033[1m1\033[0m"
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echo -e " only MASTER: \033[1m2\033[0m"
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echo -e " only MINION: \033[1m3\033[0m"
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read -p "Please choose a role > " option
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echo
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case $option in
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[2] )
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read -p "IP address of this machine > " myIP
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echo
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etcdName=${mm[$myIP]}
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inList $etcdName $myIP
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configEtcd $etcdName $myIP $cluster
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# set MINION IPs in kube-controller-manager
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sed -i "s/MINION_IPS/${minionIPs}/g" default_scripts/kube-controller-manager
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cpMaster
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break
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;;
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[3] )
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read -p "IP address of this machine > " myIP
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echo
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etcdName=${mm[$myIP]}
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inList $etcdName $myIP
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configEtcd $etcdName $myIP $cluster
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# set MINION IP in default_scripts/kubelet
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sed -i "s/MY_IP/${myIP}/g" default_scripts/kubelet
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cpMinion
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break
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;;
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[1] )
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read -p "IP address of this machine > " myIP
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echo
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etcdName=${mm[$myIP]}
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inList $etcdName $myIP
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configEtcd $etcdName $myIP $cluster
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# For minion set MINION IP in default_scripts/kubelet
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sed -i "s/MY_IP/${myIP}/g" default_scripts/kubelet
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# For master set MINION IPs in kube-controller-manager
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minionIPs="$minionIPs,$myIP"
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sed -i "s/MINION_IPS/${minionIPs}/g" default_scripts/kube-controller-manager
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cpMaster
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cpMinion
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break
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;;
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* )
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echo "Please choose 1 or 2 or 3."
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;;
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esac
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done
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echo -e "\e[0;32mConfigure Success\033[0m"
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