二进制部署kubernetes

二进制部署kubernetes

---

1、集群架构

准备5台2CPU/2g内存/50g磁盘虚拟机，使用10.4.7.0/24网络
操作系统是 CentOS7.6

uname -a 
Linux hdss7-11.host.com 3.10.0-957.el7.x86_64 #1 SMP Thu Nov 8 23:39:32 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

具体规划如下

主机名	IP地址
hdss7-11.host.com	10.4.7.11
hdss7-12.host.com	10.4.7.12
hdss7-21.host.com	10.4.7.21
hdss7-22.host.com	10.4.7.22
hdss7-200.host.com	10.4.7.200

2、基础环境的准备

2.0 系统准备

---

#### 查看虚拟网络编辑器的设置 ####

打开虚拟网络编辑器：子网IP设置为10.4.7.0/24点击右侧NAT设置，修改网关为10.4.7.254

VMnet 8 配置

打开网络适配器，找到VM8的网卡，右击属性，双击Internet4(TCP/IPv4)，再点击高级，修改接口跃点数为10，首选DNS为10.4.7.11

2.1 系统设置

2.1.1 设置主机名

hostnamectl set-hostname hdss7-11.host.com
hostnamectl set-hostname hdss7-12.host.com
hostnamectl set-hostname hdss7-21.host.com
hostnamectl set-hostname hdss7-22.host.com
hostnamectl set-hostname hdss7-200.host.com

2.1.2 关闭防火墙和SELinux

systemctl stop firewalld
systemctl disable firewalld
setenforce 0
sed -i "s/SELINUX=enforcing/SELINUX=disabled/g" /etc/selinux/config

2.1.3 网卡设置

cat /etc/sysconfig/network-scripts/ifcfg-eth0

TYPE=Ethernet
BOOTPROTO=none
NAME=eth0
DEVICE=eth0
ONBOOT=yes
IPADDR=10.4.7.xx
NETMASK=255.255.255.0
GATEWAY=10.4.7.254
DNS1=10.4.7.254

xx替换具体值

2.1.4 yum源的设置

rm -rvf /etc/yum.repos.d/*

removed ‘/etc/yum.repos.d/CentOS-Base.repo’
removed ‘/etc/yum.repos.d/CentOS-CR.repo’
removed ‘/etc/yum.repos.d/CentOS-Debuginfo.repo’
removed ‘/etc/yum.repos.d/CentOS-fasttrack.repo’
removed ‘/etc/yum.repos.d/CentOS-Media.repo’
removed ‘/etc/yum.repos.d/CentOS-Sources.repo’
removed ‘/etc/yum.repos.d/CentOS-Vault.repo’

curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo
curl -o /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo

yum clean all
yum makecache
yum update -y 

2.1.5 安装常用的软件

yum install wget net-tools telnet tree nmap sysstat lrzsz dos2unix bind-utils  bash-completion  vim -y

2.2 安装bind服务

---

> hdss7-11.host.com上

---

2.2.1 安装bind 9

[root@hdss7-11 ~]# yum install bind -y

2.2.2 配置bind 9

vim /etc/named.conf

listen-on port 53 { 10.4.7.11; }; 
allow-query     { any; };
forwarders      { 10.4.7.254; };
recursion yes;
dnssec-enable no;
dnssec-validation no

检查配置文件

[root@hdss7-11 ~]# named-checkconf

vim /etc/named.rfc1912.zones

zone "host.com" IN {
        type  master;
        file  "host.com.zone";
        allow-update { 10.4.7.11; };
};

zone "od.com" IN {
        type  master;
        file  "od.com.zone";
        allow-update { 10.4.7.11; };
};

vim /var/named/host.com.zone

$ORIGIN host.com.
$TTL 600    ; 10 minutes
@       IN SOA  dns.host.com. dnsadmin.host.com. (
                2020032001 ; serial
                10800      ; refresh (3 hours)
                900        ; retry (15 minutes)
                604800     ; expire (1 week)
                86400      ; minimum (1 day)
                )
            NS   dns.host.com.
$TTL 60 ; 1 minute
dns                A    10.4.7.11
HDSS7-11           A    10.4.7.11
HDSS7-12           A    10.4.7.12
HDSS7-21           A    10.4.7.21
HDSS7-22           A    10.4.7.22
HDSS7-200          A    10.4.7.200

vim /var/named/od.com.zone

$ORIGIN od.com.
$TTL 600    ; 10 minutes
@           IN SOA  dns.od.com. dnsadmin.od.com. (
                2020032001 ; serial
                10800      ; refresh (3 hours)
                900        ; retry (15 minutes)
                604800     ; expire (1 week)
                86400      ; minimum (1 day)
                )
                NS   dns.od.com.
$TTL 60 ; 1 minute
dns                A    10.4.7.11

2.2.3 检查配置并启动bind9

systemctl start named
systemctl enable named
netstat -luntp |grep 53
tcp        0      0 10.4.7.11:53            0.0.0.0:*               LISTEN      58899/named         
tcp        0      0 127.0.0.1:953           0.0.0.0:*               LISTEN      58899/named         
tcp6       0      0 ::1:53                  :::*                    LISTEN      58899/named         
tcp6       0      0 ::1:953                 :::*                    LISTEN      58899/named         
udp        0      0 10.4.7.11:53            0.0.0.0:*                           58899/named         
udp6       0      0 ::1:53                  :::*                                58899/named  

2.2.4 检查

[root@hdss7-11 ~]# dig -t A hdss7-11.host.com @10.4.7.11 +short
10.4.7.11
[root@hdss7-11 ~]# dig -t A hdss7-12.host.com @10.4.7.11  +short
10.4.7.12
[root@hdss7-11 ~]# dig -t A hdss7-21.host.com @10.4.7.11  +short
10.4.7.21
[root@hdss7-11 ~]# dig -t A hdss7-22.host.com @10.4.7.11  +short
10.4.7.22
[root@hdss7-11 ~]# dig -t A hdss7-200.host.com @10.4.7.11  +short
10.4.7.200

2.2.5 配置DNS客户端

Linux所有主机

vim /etc/sysconfig/network-scripts/ifcfg-eth0

DNS1=10.4.7.11

vim /etc/resolv.conf

search host.com
nameserver 10.4.7.11

systemctl restart network

Windows主机

vmnet8网卡更改DNS为：10.4.7.11

2.2.6 检查

Linux

ping www.baidu.com
ping hdss7-200

Windows

ping hdss7-200.host.com

2.3 准备签发证书环境

---

> hdss7-200.host.com上

---

2.3.1 安装cfssl

wget https://pkg.cfssl.org/R1.2/cfssl_linux-amd64 -O /usr/bin/cfssl
wget https://pkg.cfssl.org/R1.2/cfssljson_linux-amd64 -O /usr/bin/cfssl-json
wget https://pkg.cfssl.org/R1.2/cfssl-certinfo_linux-amd64 -O /usr/bin/cfssl-certinfo

chmod +x /usr/bin/cfssl*

2.3.2 创建生成ca证书csr的JSON配置文件

mkdir /opt/certs

vim /opt/certs/ca-csr.json

{
    "CN": "OldboyEdu",
    "hosts": [
    ],
    "key": {
        "algo": "rsa",
        "size": 2048
    },
    "names": [
        {
            "C": "CN",
            "ST": "beijing",
            "L": "beijing",
            "O": "od",
            "OU": "ops"
        }
    ],
    "ca": {
        "expiry": "175200h"
    }
}

2.3.3.生成ca证书文件

cd /opt/certs

[root@hdss7-200 certs]# cfssl gencert -initca ca-csr.json | cfssl-json -bare ca
2020/07/28 13:01:30 [INFO] generating a new CA key and certificate from CSR
2020/07/28 13:01:30 [INFO] generate received request
2020/07/28 13:01:30 [INFO] received CSR
2020/07/28 13:01:30 [INFO] generating key: rsa-2048
2020/07/28 13:01:30 [INFO] encoded CSR
2020/07/28 13:01:30 [INFO] signed certificate with serial number 674831738703000672656639144697689641446808702879

[root@hdss7-200 certs]# ll
total 16
-rw-r--r--. 1 root root  993 Jul 28 13:01 ca.csr
-rw-r--r--. 1 root root  328 Jul 28 13:01 ca-csr.json
-rw-------. 1 root root 1675 Jul 28 13:01 ca-key.pem
-rw-r--r--. 1 root root 1346 Jul 28 13:01 ca.pem

2.4.部署docker

---

hdss7-21.host.com

hdss7-22.host.com

hdss7-200.host.com

---

2.4.1.安装

[root@hdss7-21 ~]# curl -fsSL https://get.docker.com | bash -s docker --mirror Aliyun
[root@hdss7-22 ~]# curl -fsSL https://get.docker.com | bash -s docker --mirror Aliyun
[root@hdss7-200 ~]# curl -fsSL https://get.docker.com | bash -s docker --mirror Aliyun

2.4.2.配置

mkdir /etc/docker

vim /etc/docker/daemon.json

{
  "graph": "/data/docker",
  "storage-driver": "overlay2",
  "insecure-registries": ["registry.access.redhat.com","quay.io","harbor.od.com"],
  "registry-mirrors": ["https://q2gr04ke.mirror.aliyuncs.com"],
  "bip": "172.7.21.1/24",
  "exec-opts": ["native.cgroupdriver=systemd"],
  "live-restore": true
}

bip要根据宿主机ip变化

注意：hdss7-21.host.com   bip 172.7.21.1/24
     hdss7-22.host.com   bip 172.7.22.1/24
     hdss7-200.host.com  bip 172.7.200.1/24

2.4.3.启动

mkdir -p /data/docker
systemctl start docker
systemctl enable docker
docker --version

2.5.部署docker镜像私有仓库harbor

---

> hdss7-200.host.com上

---

2.5.1.下载软件并解压

[harbor官网github地址](https://github.com/goharbor/harbor)
[root@hdss7-200 src]# mkdir src
[root@hdss7-200 certs]# cd /opt/src
[root@hdss7-200 src]# tar xf harbor-offline-installer-v1.8.3.tgz -C /opt/
[root@hdss7-200 src]# cd /opt/
[root@hdss7-200 opt]# mv harbor/ harbor-v1.8.3
[root@hdss7-200 opt]# ln -s /opt/harbor-v1.8.3/ /opt/harbor

2.5.2.配置

[root@hdss7-200 opt]#  vim /opt/harbor/harbor.yml
hostname: harbor.od.com
http:
  port: 180
 harbor_admin_password:Harbor12345
data_volume: /data/harbor
log:
    level:  info
    rotate_count:  50
    rotate_size:200M
    location: /data/harbor/logs

[root@hdss7-200 opt]# mkdir -p /data/harbor/logs

2.5.3.安装docker-compose

[root@hdss7-200 opt]# yum install docker-compose -y

2.5.4.安装harbor

[root@hdss7-200 harbor]# cd /opt/harbor
[root@hdss7-200 harbor]# ./install.sh 

2.5.5.检查harbor启动情况

[root@hdss7-200 harbor]# docker-compose ps
[root@hdss7-200 harbor]# docker ps -a

2.5.6.配置harbor的dns内网解析

注意：现在是在hdss7-11上

[root@hdss7-11 ~]# vim /var/named/od.com.zone
2020032002 ; serial
harbor             A    10.4.7.200
[root@hdss7-11 ~]# systemctl restart named
[root@hdss7-11 ~]# dig -t A harbor.od.com +short
10.4.7.200

2.5.7.安装NGINX并配置

注意：现在是在hdss7-200上

[root@hdss7-200 harbor]# yum install nginx -y
[root@hdss7-200 harbor]# vim /etc/nginx/conf.d/harbor.od.com.conf
server {
    listen       80;
    server_name  harbor.od.com;

    client_max_body_size 1000m;

    location / {
        proxy_pass http://127.0.0.1:180;
    }
}
[root@hdss7-200 harbor]# nginx -t
[root@hdss7-200 harbor]# systemctl start nginx
[root@hdss7-200 harbor]# systemctl enable nginx

2.5.8.浏览器打开harbor.od.com并测试

[root@hdss7-11 ~]# curl harbor.od.com

1. 浏览器输入：harbor.od.com 用户名：admin 密码：Harbor12345

2. 新建项目：public 访问级别：公开

3. 下载镜像并给镜像打tag

   [root@hdss7-200 harbor]# docker pull nginx:1.7.9
   [root@hdss7-200 harbor]# docker images |grep 1.7.9
   [root@hdss7-200 harbor]# docker tag 84581e99d807 harbor.od.com/public/nginx:v1.7.9
   

4. 登录harbor并上传到仓库

   [root@hdss7-200 harbor]# docker login harbor.od.com
   [root@hdss7-200 harbor]# docker push harbor.od.com/public/nginx:v1.7.9
   

   错误：

   网页打不开
   [root@hdss7-200 harbor]# docker-compose down
   [root@hdss7-200 harbor]# cd /opt/harbor
   [root@hdss7-200 harbor]# ./prepare 
   [root@hdss7-200 harbor]# docker-compose up -d
   [root@hdss7-200 harbor]# systemctl restart nginx 
   

2.5.9.检查

可以看到NGINX镜像已经上传到public下

3 部署Master节点

3.1.部署etcd集群

3.1.1.集群架构

主机名	角色	IP地址
hdss7-12.host.com	lead	10.4.7.12
hdss7-21.host.com	follow	10.4.7.21
hdss7-22.host.com	follow	10.4.7.22

部署方法以hdss7-12.host.com为例

3.1.2.创建基于根证书的config配置文件

---

> hdss7-200.host.com上

---

[root@hdss7-200 ~]# vim  /opt/certs/ca-config.json
{
    "signing": {
        "default": {
            "expiry": "175200h"
        },
        "profiles": {
            "server": {
                "expiry": "175200h",
                "usages": [
                    "signing",
                    "key encipherment",
                    "server auth"
                ]
            },
            "client": {
                "expiry": "175200h",
                "usages": [
                    "signing",
                    "key encipherment",
                    "client auth"
                ]
            },
            "peer": {
                "expiry": "175200h",
                "usages": [
                    "signing",
                    "key encipherment",
                    "server auth",
                    "client auth"
                ]
            }
        }
    }
}  

3.1.3.创建生成自签发证书的csr的json配置文件

[root@hdss7-200 ~]# vim  /opt/certs/etcd-peer-csr.json
{
    "CN": "k8s-etcd",
    "hosts": [
        "10.4.7.11",
        "10.4.7.12",
        "10.4.7.21",
        "10.4.7.22"
    ],
    "key": {
        "algo": "rsa",
        "size": 2048
    },
    "names": [
        {
            "C": "CN",
            "ST": "beijing",
            "L": "beijing",
            "O": "od",
            "OU": "ops"
        }
    ]
}

3.1.4.生成etcd证书文件

[root@hdss7-200 ~]# cd /opt/certs/
[root@hdss7-200 certs]# cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=peer etcd-peer-csr.json |cfssl-json -bare etcd-peer

3.1.5.检查生成的证书文件

[root@hdss7-200 certs]# ll
etcd-peer.csr
etcd-peer-csr.json
etcd-peer-key.pem
etcd-peer.pem

3.1.6.创建etcd用户

---

> hdss7-12.host.com上

---

[root@hdss7-12 opt]# useradd -s /sbin/nologin -M etcd

3.1.7.下载软件，解压，做软连接

https://github.com/etcd-io/etcd/tags
[root@hdss7-12 ~]# mkdir /opt/src
[root@hdss7-12 ~]# cd /opt/src
[root@hdss7-12 src]# tar xf etcd-v3.1.20-linux-amd64.tar.gz -C /opt/
[root@hdss7-12 src]# cd ..
[root@hdss7-12 opt]# mv etcd-v3.1.20-linux-amd64/ etcd-v3.1.20
[root@hdss7-12 opt]# ln -s /opt/etcd-v3.1.20/ /opt/etcd

3.1.8.创建目录，拷贝证书文件

创建证书目录、数据目录、日志目录

[root@hdss7-12 opt]# mkdir -p /opt/etcd/certs /data/etcd /data/logs/etcd-server

拷贝生成的证书文件

[root@hdss7-12 opt]# cd /opt/etcd/certs/
[root@hdss7-12 certs]# scp hdss7-200:/opt/certs/ca.pem .
[root@hdss7-12 certs]# scp hdss7-200:/opt/certs/etcd-peer.pem .
[root@hdss7-12 certs]# scp hdss7-200:/opt/certs/etcd-peer-key.pem .

3.1.9.创建etcd服务启动脚本

[root@hdss7-12 ~]# vim /opt/etcd/etcd-server-startup.sh
#!/bin/sh
./etcd --name etcd-server-7-12 \
       --data-dir /data/etcd/etcd-server \
       --listen-peer-urls https://10.4.7.12:2380 \
       --listen-client-urls https://10.4.7.12:2379,http://127.0.0.1:2379 \
       --quota-backend-bytes 8000000000 \
       --initial-advertise-peer-urls https://10.4.7.12:2380 \
       --advertise-client-urls https://10.4.7.12:2379,http://127.0.0.1:2379 \
       --initial-cluster  etcd-server-7-12=https://10.4.7.12:2380,etcd-server-7-21=https://10.4.7.21:2380,etcd-server-7-22=https://10.4.7.22:2380 \
       --ca-file ./certs/ca.pem \
       --cert-file ./certs/etcd-peer.pem \
       --key-file ./certs/etcd-peer-key.pem \
       --client-cert-auth  \
       --trusted-ca-file ./certs/ca.pem \
       --peer-ca-file ./certs/ca.pem \
       --peer-cert-file ./certs/etcd-peer.pem \
       --peer-key-file ./certs/etcd-peer-key.pem \
       --peer-client-cert-auth \
       --peer-trusted-ca-file ./certs/ca.pem \
       --log-output stdout

[root@hdss7-12 ~]# chmod +x /opt/etcd/etcd-server-startup.sh

3.1.10.授权目录权限

[root@hdss7-12 ~]# chown -R etcd.etcd /opt/etcd-v3.1.20/   /data/etcd/  /data/logs/etcd-server/

3.1.11.安装supervisor软件

[root@hdss7-12 ~]# yum install supervisor -y
[root@hdss7-12 ~]# systemctl start supervisord
[root@hdss7-12 ~]# systemctl enable supervisord

3.1.12.创建supervisor配置

[root@hdss7-12 ~]#vim /etc/supervisord.d/etcd-server.ini
[program:etcd-server-7-12]
command=/opt/etcd/etcd-server-startup.sh                        ; the program (relative uses PATH, can take args)
numprocs=1                                                      ; number of processes copies to start (def 1)
directory=/opt/etcd                                             ; directory to cwd to before exec (def no cwd)
autostart=true                                                  ; start at supervisord start (default: true)
autorestart=true                                                ; retstart at unexpected quit (default: true)
startsecs=30                                                    ; number of secs prog must stay running (def. 1)
startretries=3                                                  ; max # of serial start failures (default 3)
exitcodes=0,2                                                   ; 'expected' exit codes for process (default 0,2)
stopsignal=QUIT                                                 ; signal used to kill process (default TERM)
stopwaitsecs=10                                                 ; max num secs to wait b4 SIGKILL (default 10)
user=etcd                                                       ; setuid to this UNIX account to run the program
redirect_stderr=true                                            ; redirect proc stderr to stdout (default false)
stdout_logfile=/data/logs/etcd-server/etcd.stdout.log           ; stdout log path, NONE for none; default AUTO
stdout_logfile_maxbytes=64MB                                    ; max # logfile bytes b4 rotation (default 50MB)
stdout_logfile_backups=4                                        ; # of stdout logfile backups (default 10)
stdout_capture_maxbytes=1MB                                     ; number of bytes in 'capturemode' (default 0)
stdout_events_enabled=false                                     ; emit events on stdout writes (default false)

3.1.13.启动etcd服务并检查

[root@hdss7-12 ~]# supervisorctl update
[root@hdss7-12 ~]# supervisorctl status
[root@hdss7-12 ~]# netstat -lntup|grep etcd

3.1.14.部署启动所有集群

不同的地方
	/opt/etcd/etcd-server-startup.sh
	--name
	--listen-peer-urls
	--listen-client-urls
	--initial-advertise-peer-urls
	--advertise-client-urls
####################################################################################
/etc/supervisor.d/etcd-server.ini
[program:etcd-server-7-12]

3.1.15.检查集群状态

[root@hdss7-22 etcd]# ./etcdctl  cluster-health
[root@hdss7-22 etcd]# ./etcdctl member list

3.2 部署kube-apiserver集群

主机名	角色	IP地址
hdss7-21.host.com	kube-apiserver	10.4.7.21
hdss7-22.host.com	kube-apiserver	10.4.7.22

部署方法以hdss7-21.host.com为例

3.2.2.下载软件，解压，做软连接

---

> hdss7-21.host.com上

---

https://github.com/kubernetes/kubernetes/releases/tag/v1.15.2
CHANGELOG-1.15.md--→server binaries--→kubernetes-server-linux-amd64.tar.gz
[root@hdss7-21 src]# tar xf kubernetes-server-linux-amd64-v1.15.2.tar.gz  -C /opt
[root@hdss7-21 opt]# cd /opt/
[root@hdss7-21 opt]# mv kubernetes/ kubernetes-v1.15.2
[root@hdss7-21 opt]# ln -s /opt/kubernetes-v1.15.2/ /opt/kubernetes
[root@hdss7-21 opt]# cd kubernetes
[root@hdss7-21 kubernetes]# rm -rf kubernetes-src.tar.gz
[root@hdss7-21 kubernetes]# cd server/bin
[root@hdss7-21 bin]# rm -f *.tar
[root@hdss7-21 bin]# rm -f *_tag

3.2.3.签发client证书

---

> hdss7-200.host.com上

---

1、创建生成证书csr的json配置文件

[root@hdss7-200 ~]# cd /opt/certs/
[root@hdss7-200 certs]# vim  /opt/certs/client-csr.json
{
    "CN": "k8s-node",
    "hosts": [
    ],
    "key": {
        "algo": "rsa",
        "size": 2048
    },
    "names": [
        {
            "C": "CN",
            "ST": "beijing",
            "L": "beijing",
            "O": "od",
            "OU": "ops"
        }
    ]
}

2、生成client证书文件

[root@hdss7-200 certs]# cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=client client-csr.json |cfssl-json -bare client

3、检查生成的证书文件

[root@hdss7-200 certs]# ll
client.csr
client-csr.json
client-key.pem
client.pem

3.2.4.签发kube-apiserver证书

---

> hdss7-200.host.com上

---

1、创建生成证书csr的json配置文件

[root@hdss7-200 certs]# vim /opt/certs/apiserver-csr.json

{
    "CN": "k8s-apiserver",
    "hosts": [
        "127.0.0.1",
        "192.168.0.1",
        "kubernetes.default",
        "kubernetes.default.svc",
        "kubernetes.default.svc.cluster",
        "kubernetes.default.svc.cluster.local",
        "10.4.7.10",
        "10.4.7.21",
        "10.4.7.22",
        "10.4.7.23"
    ],
    "key": {
        "algo": "rsa",
        "size": 2048
    },
    "names": [
        {
            "C": "CN",
            "ST": "beijing",
            "L": "beijing",
            "O": "od",
            "OU": "ops"
        }
    ]
}

2、生成kube-apiserver证书文件

[root@hdss7-200 certs]# cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=server apiserver-csr.json |cfssl-json -bare apiserver

3、检查生成的证书文件

[root@hdss7-200 certs]# ll
apiserver.csr
apiserver-csr.json
apiserver-key.pem
apiserver.pem

3.2.5.拷贝证书文件至各节点，并创建配置

1、拷贝证书文件到/opt/kubernetes/server/bin/cert目录下

[root@hdss7-21 ~]# mkdir /opt/kubernetes/server/bin/cert
[root@hdss7-21 ~]# cd /opt/kubernetes/server/bin/cert
[root@hdss7-21 cert]# scp hdss7-200:/opt/certs/ca.pem .
[root@hdss7-21 cert]# scp hdss7-200:/opt/certs/ca-key.pem .
[root@hdss7-21 cert]# scp hdss7-200:/opt/certs/client.pem .
[root@hdss7-21 cert]# scp hdss7-200:/opt/certs/client-key.pem .
[root@hdss7-21 cert]# scp hdss7-200:/opt/certs/apiserver.pem .
[root@hdss7-21 cert]# scp hdss7-200:/opt/certs/apiserver-key.pem .

2、创建配置

[root@hdss7-21 bin]# cd /opt/kubernetes/server/bin/
[root@hdss7-21 bin]# mkdir conf
[root@hdss7-21 conf]# vim audit.yaml
apiVersion: audit.k8s.io/v1beta1 # This is required.
kind: Policy
# Don't generate audit events for all requests in RequestReceived stage.
omitStages:
  - "RequestReceived"
rules:
  # Log pod changes at RequestResponse level
  - level: RequestResponse
    resources:
    - group: ""
      # Resource "pods" doesn't match requests to any subresource of pods,
      # which is consistent with the RBAC policy.
      resources: ["pods"]
  # Log "pods/log", "pods/status" at Metadata level
  - level: Metadata
    resources:
    - group: ""
      resources: ["pods/log", "pods/status"]

  # Don't log requests to a configmap called "controller-leader"
  - level: None
    resources:
    - group: ""
      resources: ["configmaps"]
      resourceNames: ["controller-leader"]

  # Don't log watch requests by the "system:kube-proxy" on endpoints or serces
  - level: None
    users: ["system:kube-proxy"]
    verbs: ["watch"]
    resources:
    - group: "" # core API group
      resources: ["endpoints", "serces"]

  # Don't log authenticated requests to certain non-resource URL paths.
  - level: None
    userGroups: ["system:authenticated"]
    nonResourceURLs:
    - "/api*" # Wildcard matching.
    - "/version"

  # Log the request body of configmap changes in kube-system.
  - level: Request
    resources:
    - group: "" # core API group
      resources: ["configmaps"]
    # This rule only applies to resources in the "kube-system" namespace.
    # The empty string "" can be used to select non-namespaced resources.
    namespaces: ["kube-system"]

  # Log configmap and secret changes in all other namespaces at the Metadata level.
  - level: Metadata
    resources:
    - group: "" # core API group
      resources: ["secrets", "configmaps"]

  # Log all other resources in core and extensions at the Request level.
  - level: Request
    resources:
    - group: "" # core API group
    - group: "extensions" # Version of group should NOT be included.

  # A catch-all rule to log all other requests at the Metadata level.
  - level: Metadata
    # Long-running requests like watches that fall under this rule will not
    # generate an audit event in RequestReceived.
    omitStages:
      - "RequestReceived"

3.2.6.创建apiserver启动脚本

	[root@hdss7-21 bin]# vim /opt/kubernetes/server/bin/kube-apiserver.sh
    #!/bin/bash
    ./kube-apiserver \
      --apiserver-count 2 \
      --audit-log-path /data/logs/kubernetes/kube-apiserver/audit-log \
      --audit-policy-file ./conf/audit.yaml \
      --authorization-mode RBAC \
      --client-ca-file ./cert/ca.pem \
      --requestheader-client-ca-file ./cert/ca.pem \
      --enable-admission-plugins NamespaceLifecycle,LimitRanger,ServiceAccount,DefaultStorageClass,DefaultTolerationSeconds,MutatingAdmissionWebhook,ValidatingAdmissionWebhook,ResourceQuota \
      --etcd-cafile ./cert/ca.pem \
      --etcd-certfile ./cert/client.pem \
      --etcd-keyfile ./cert/client-key.pem \
      --etcd-servers https://10.4.7.12:2379,https://10.4.7.21:2379,https://10.4.7.22:2379 \
      --service-account-key-file ./cert/ca-key.pem \
      --service-cluster-ip-range 192.168.0.0/16 \
      --service-node-port-range 3000-29999 \
      --target-ram-mb=1024 \
      --kubelet-client-certificate ./cert/client.pem \
      --kubelet-client-key ./cert/client-key.pem \
      --log-dir  /data/logs/kubernetes/kube-apiserver \
      --tls-cert-file ./cert/apiserver.pem \
      --tls-private-key-file ./cert/apiserver-key.pem \
      --v 2

3.2.7.授权和创建目录

 [root@hdss7-21 bin]# chmod +x kube-apiserver.sh
 [root@hdss7-21 bin]# mkdir -p /data/logs/kubernetes/kube-apiserver

3.2.8.创建配置

[root@hdss7-21 bin]# vim  /etc/supervisord.d/kube-apiserver.ini
[program:kube-apiserver-7-21]
command=/opt/kubernetes/server/bin/kube-apiserver.sh            ; the program (relative uses PATH, can take args)
numprocs=1                                                      ; number of processes copies to start (def 1)
directory=/opt/kubernetes/server/bin                            ; directory to cwd to before exec (def no cwd)
autostart=true                                                  ; start at supervisor start (default: true)
autorestart=true                                                ; retstart at unexpected quit (default: true)
startsecs=30                                                    ; number of secs prog must stay running (def. 1)
startretries=3                                                  ; max # of serial start failures (default 3)
exitcodes=0,2                                                   ; 'expected' exit codes for process (default 0,2)
stopsignal=QUIT                                                 ; signal used to kill process (default TERM)
stopwaitsecs=10                                                 ; max num secs to wait b4 SIGKILL (default 10)
user=root                                                       ; setuid to this UNIX account to run the program
redirect_stderr=true                                            ; redirect proc stderr to stdout (default false)
stdout_logfile=/data/logs/kubernetes/kube-apiserver/apiserver.stdout.log        ; stderr log path, NONE for none; default AUTO
stdout_logfile_maxbytes=64MB                                    ; max # logfile bytes b4 rotation (default 50MB)
stdout_logfile_backups=4                                        ; # of stdout logfile backups (default 10)
stdout_capture_maxbytes=1MB                                     ; number of bytes in 'capturemode' (default 0)
stdout_events_enabled=false                                     ; emit events on stdout writes (default false)

3.2.9.启动服务并检查

[root@hdss7-21 bin]# supervisorctl update
[root@hdss7-21 bin]# supervisorctl status
[root@hdss7-21 bin]# netstat -nltup|grep kube-api

3.2.10.部署启动所有集群

不同的地方

/etc/supervisor.d/kube-apiserver.ini
[program:kube-apiserver-7-21]

3.3.部署四层反向代理

3.3.1.集群架构

主机名	角色	IP地址	P地址
hdss7-11.host.com	kube-apiserver	10.4.7.11	10.4.7.10
hdss7-12.host.com	kube-apiserver	10.4.7.12	10.4.7.10

3.3.2.安装NGINX和keepalived

1、hdss7-11.host.com和hdss7-12.host.com都安装NGINX和keepalived

[root@hdss7-11 etcd]# yum install nginx keepalived -y

2、hdss7-11.host.com和hdss7-12.host.com配置NGINX

[root@hdss7-11 conf.d]# vim /etc/nginx/nginx.conf
stream {
    upstream kube-apiserver {
        server 10.4.7.21:6443     max_fails=3 fail_timeout=30s;
        server 10.4.7.22:6443     max_fails=3 fail_timeout=30s;
    }
    server {
        listen 7443;
        proxy_connect_timeout 2s;
        proxy_timeout 900s;
        proxy_pass kube-apiserver;
    }
}

[root@hdss7-11 etcd]# nginx -t

3、hdss7-11.host.com和hdss7-12.host.com配置keepalived

检查脚本

	[root@hdss7-11 ~]# vim /etc/keepalived/check_port.sh
	#!/bin/bash
	#keepalived 监控端口脚本
	#使用方法：
	#在keepalived的配置文件中
	#vrrp_script check_port {#创建一个vrrp_script脚本,检查配置
	#    script "/etc/keepalived/check_port.sh 6379" #配置监听的端口
	#    interval 2 #检查脚本的频率,单位（秒）
	#}
CHK_PORT=$1
if [ -n "$CHK_PORT" ];then
        PORT_PROCESS=`ss -lnt|grep $CHK_PORT|wc -l`
        if [ $PORT_PROCESS -eq 0 ];then
                echo "Port $CHK_PORT Is Not Used,End."
                exit 1
        fi
else
        echo "Check Port Cant Be Empty!"
fi

[root@hdss7-11 ~]# chmod +x /etc/keepalived/check_port.sh

配置文件

keepalived 主:

[root@hdss7-11 conf.d]# vim /etc/keepalived/keepalived.conf 

! Configuration File for keepalived

global_defs {
   router_id 10.4.7.11

}

vrrp_script chk_nginx {
    script "/etc/keepalived/check_port.sh 7443"
    interval 2
    weight -20
}

vrrp_instance _1 {
    state MASTER
    interface eth0
    rtual_router_id 251
    priority 100
    advert_int 1
    mcast_src_ip 10.4.7.11
    nopreempt

    authentication {
        auth_type PASS
        auth_pass 11111111
    }
    track_script {
         chk_nginx
    }
    rtual_ipaddress {
        10.4.7.10
    }
}

keepalived 从:

[root@hdss7-12 conf.d]# vim /etc/keepalived/keepalived.conf 

! Configuration File for keepalived
global_defs {
    router_id 10.4.7.12
}
vrrp_script chk_nginx {
    script "/etc/keepalived/check_port.sh 7443"
    interval 2
    weight -20
}
vrrp_instance _1 {
    state BACKUP
    interface eth0
    rtual_router_id 251
    mcast_src_ip 10.4.7.12
    priority 90
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 11111111
    }
    track_script {
        chk_nginx
    }
    rtual_ipaddress {
        10.4.7.10
    }
}

nopreempt：非抢占式

3.3.3.启动代理并检查

systemctl start nginx keepalived
systemctl enable nginx keepalived
netstat -lntup|grep nginx
ip addr

3.4.部署controller-manager

3.4.1.集群架构

主机名	角色	IP地址
hdss7-21.host.com	controller-manager	10.4.7.21
hdss7-22.host.com	controller-manager	10.4.7.22

部署方法以hdss7-21.host.com为例

3.4.2.创建启动脚本

---

> hdss7-21.host.com上

---

[root@hdss7-21 bin]# vim /opt/kubernetes/server/bin/kube-controller-manager.sh
#!/bin/sh
./kube-controller-manager \
  --cluster-cidr 172.7.0.0/16 \
  --leader-elect true \
  --log-dir /data/logs/kubernetes/kube-controller-manager \
  --master http://127.0.0.1:8080 \
  --service-account-private-key-file ./cert/ca-key.pem \
  --service-cluster-ip-range 192.168.0.0/16 \
  --root-ca-file ./cert/ca.pem \
  --v 2 

3.4.3.授权文件权限，创建目录

[root@hdss7-21 bin]# chmod +x /opt/kubernetes/server/bin/kube-controller-manager.sh 
[root@hdss7-21 bin]# mkdir -p /data/logs/kubernetes/kube-controller-manager

3.4.4.创建supervisor配置

[root@hdss7-21 bin]# vim /etc/supervisord.d/kube-conntroller-manager.ini
[program:kube-controller-manager-7-21]
command=/opt/kubernetes/server/bin/kube-controller-manager.sh                     ; the program (relative uses PATH, can take args)
numprocs=1                                                                        ; number of processes copies to start (def 1)
directory=/opt/kubernetes/server/bin                                              ; directory to cwd to before exec (def no cwd)
autostart=true                                                                    ; start at supervisord start (default: true)
autorestart=true                                                                  ; retstart at unexpected quit (default: true)
startsecs=30                                                                      ; number of secs prog must stay running (def. 1)
startretries=3                                                                    ; max # of serial start failures (default 3)
exitcodes=0,2                                                                     ; 'expected' exit codes for process (default 0,2)
stopsignal=QUIT                                                                   ; signal used to kill process (default TERM)
stopwaitsecs=10                                                                   ; max num secs to wait b4 SIGKILL (default 10)
user=root                                                                         ; setuid to this UNIX account to run the program
redirect_stderr=true                                                              ; redirect proc stderr to stdout (default false)
stdout_logfile=/data/logs/kubernetes/kube-controller-manager/controller.stdout.log  ; stderr log path, NONE for none; default AUTO
stdout_logfile_maxbytes=64MB                                                      ; max # logfile bytes b4 rotation (default 50MB)
stdout_logfile_backups=4                                                          ; # of stdout logfile backups (default 10)
stdout_capture_maxbytes=1MB                                                       ; number of bytes in 'capturemode' (default 0)
stdout_events_enabled=false                                                       ; emit events on stdout writes (default false)

3.4.5.启动服务并检查

[root@hdss7-21 bin]# supervisorctl update
[root@hdss7-21 bin]# supervisorctl status

3.4.6.部署启动所有集群

不同的地方

/etc/supervisor.d/kube-conntroller-manager.ini
[program:kube-controller-manager-7-21]

3.5.部署kube-scheduler

3.5.1.集群架构

主机名	角色	IP地址
hdss7-21.host.com	kube-scheduler	10.4.7.21
hdss7-22.host.com	kube-scheduler	10.4.7.22

部署方法以hdss7-21.host.com为例

3.5.2.创建启动脚本

---

> hdss7-21.host.com上

---

[root@hdss7-21 bin]# vim /opt/kubernetes/server/bin/kube-scheduler.sh
#!/bin/sh
./kube-scheduler \
  --leader-elect  \
  --log-dir /data/logs/kubernetes/kube-scheduler \
  --master http://127.0.0.1:8080 \
  --v 2

3.5.3.授权文件权限，创建目录

[root@hdss7-21 bin]# chmod +x  /opt/kubernetes/server/bin/kube-scheduler.sh
[root@hdss7-21 bin]# mkdir -p /data/logs/kubernetes/kube-scheduler

3.5.4.创建supervisor配置

[root@hdss7-21 bin]# vim /etc/supervisord.d/kube-scheduler.ini
[program:kube-scheduler-7-21]
command=/opt/kubernetes/server/bin/kube-scheduler.sh                     ; the program (relative uses PATH, can take args)
numprocs=1                                                               ; number of processes copies to start (def 1)
directory=/opt/kubernetes/server/bin                                     ; directory to cwd to before exec (def no cwd)
autostart=true                                                           ; start at supervisord start (default: true)
autorestart=true                                                         ; retstart at unexpected quit (default: true)
startsecs=30                                                             ; number of secs prog must stay running (def. 1)
startretries=3                                                           ; max # of serial start failures (default 3)
exitcodes=0,2                                                            ; 'expected' exit codes for process (default 0,2)
stopsignal=QUIT                                                          ; signal used to kill process (default TERM)
stopwaitsecs=10                                                          ; max num secs to wait b4 SIGKILL (default 10)
user=root                                                                ; setuid to this UNIX account to run the program
redirect_stderr=true                                                     ; redirect proc stderr to stdout (default false)
stdout_logfile=/data/logs/kubernetes/kube-scheduler/scheduler.stdout.log ; stderr log path, NONE for none; default AUTO
stdout_logfile_maxbytes=64MB                                             ; max # logfile bytes b4 rotation (default 50MB)
stdout_logfile_backups=4                                                 ; # of stdout logfile backups (default 10)
stdout_capture_maxbytes=1MB                                              ; number of bytes in 'capturemode' (default 0)
stdout_events_enabled=false                                              ; emit events on stdout writes (default false)

3.5.5.启动服务并检查

[root@hdss7-21 bin]# supervisorctl update
[root@hdss7-21 bin]# supervisorctl status

3.5.6.部署启动所有集群

不同的地方

/etc/supervisor.d/kube-scheduler.ini
[program:kube-scheduler-7-21]

3.6.检查master节点

3.6.1.建立kubectl软链接

[root@hdss7-21 bin]#  ln -s /opt/kubernetes/server/bin/kubectl /usr/bin/kubectl

3.6.2.检查master节点

[root@hdss7-21 bin]# kubectl get cs

4.部署node节点

4.1.部署kubelet

4.1.1.集群架构

主机名	角色	IP地址
hdss7-21.host.com	kubelet	10.4.7.21
hdss7-22.host.com	kubelet	10.4.7.22

部署方法以hdss7-21.host.com为例

4.1.2.签发kubelet证书

---

> hdss7-200.host.com上

---

1、创建生成证书csr的json配置文件

[root@hdss7-200 certs]# vim kubelet-csr.json
{
    "CN": "k8s-kubelet",
    "hosts": [
    "127.0.0.1",
    "10.4.7.10",
    "10.4.7.21",
    "10.4.7.22",
    "10.4.7.23",
    "10.4.7.24",
    "10.4.7.25",
    "10.4.7.26",
    "10.4.7.27",
    "10.4.7.28"
    ],
    "key": {
        "algo": "rsa",
        "size": 2048
    },
    "names": [
        {
            "C": "CN",
            "ST": "beijing",
            "L": "beijing",
            "O": "od",
            "OU": "ops"
        }
    ]
}

2、生成kubelet证书文件

[root@hdss7-200 certs]# cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=server kubelet-csr.json | cfssl-json -bare kubelet

3、检查生成的证书文件

[root@hdss7-200 certs]# ll
kubelet.csr
kubelet-csr.json
kubelet-key.pem
kubelet.pem

4.1.3.拷贝证书文件至各节点，并创建配置

---

> hdss7-21.host.com上

---

1、拷贝证书文件

[root@hdss7-21 cert]# scp hdss7-200:/opt/certs/kubelet.pem .
[root@hdss7-21 cert]# scp hdss7-200:/opt/certs/kubelet-key.pem .

2、创建配置

进入 conf目录

(1)、set-cluster

[root@hdss7-21 conf]# kubectl config set-cluster myk8s \
--certificate-authority=/opt/kubernetes/server/bin/cert/ca.pem \
--embed-certs=true \
--server=https://10.4.7.10:7443 \
--kubeconfig=kubelet.kubeconfig

(2)、set-credentials

[root@hdss7-21 conf]# kubectl config set-credentials k8s-node \
--client-certificate=/opt/kubernetes/server/bin/cert/client.pem \
--client-key=/opt/kubernetes/server/bin/cert/client-key.pem \
--embed-certs=true \
--kubeconfig=kubelet.kubeconfig

(3)、set-context

[root@hdss7-21 conf]# kubectl config set-context myk8s-context \
--cluster=myk8s \
--user=k8s-node \
--kubeconfig=kubelet.kubeconfig

(4)、use-context

[root@hdss7-21 conf]# kubectl config use-context myk8s-context --kubeconfig=kubelet.kubeconfig

(5)、查看生成的kubelet.kubeconfig
[root@hdss7-21 conf]# ll
kubelet.kubeconfig

(6)、k8s-node.yaml
   
   (1)创建配置文件
    
    [root@hdss7-21 conf]#  k8s-node.yaml
    
    apiVersion: rbac.authorization.k8s.io/v1
    kind: ClusterRoleBinding
    metadata:
      name: k8s-node
    roleRef:
      apiGroup: rbac.authorization.k8s.io
      kind: ClusterRole
      name: system:node
    subjects:
    - apiGroup: rbac.authorization.k8s.io
      kind: User
      name: k8s-node

      (2)应用资源配置

      [root@hdss7-21 conf]# kubectl create -f k8s-node.yaml

      (3)查看集群角色和角色属性

    [root@hdss7-21 conf]# kubectl get clusterrolebinding k8s-node
    [root@hdss7-21 conf]# kubectl get clusterrolebinding k8s-node -o yaml

    (4)拷贝kubelet.kubeconfig 到hdss7-22.host.com上

    [root@hdss7-22 conf]# scp hdss7-21:/opt/kubernetes/server/bin/conf/kubelet.kubeconfig .

---

> hdss7-200.host.com上

---

1、下载pause镜像

[root@hdss7-200 ~]# docker pull kubernetes/pause

2、上传到docker私有仓库harbor中

(1)、给镜像打tag

[root@hdss7-200 ~]# docker images -a
[root@hdss7-200 ~]# docker tag f9d5de079539 harbor.od.com/public/pause:latest
[root@hdss7-200 ~]# docker images -a

(2)、上传到harbor上

[root@hdss7-200 ~]# docker push harbor.od.com/public/pause:latest

4.1.5.创建kubelet启动脚本

---

> hdss7-21.host.com上

---

	[root@hdss7-21 conf]# vim /opt/kubernetes/server/bin/kubelet.sh
#!/bin/sh
./kubelet \
  --anonymous-auth=false \
  --cgroup-driver systemd \
  --cluster-dns 192.168.0.2 \
  --cluster-domain cluster.local \
  --runtime-cgroups=/systemd/system.slice \
  --kubelet-cgroups=/systemd/system.slice \
  --fail-swap-on="false" \
  --client-ca-file ./cert/ca.pem \
  --tls-cert-file ./cert/kubelet.pem \
  --tls-private-key-file ./cert/kubelet-key.pem \
  --hostname-override hdss7-21.host.com \
  --image-gc-high-threshold 20 \
  --image-gc-low-threshold 10 \
  --kubeconfig ./conf/kubelet.kubeconfig \
  --log-dir /data/logs/kubernetes/kube-kubelet \
  --pod-infra-container-image harbor.od.com/public/pause:latest \
  --root-dir /data/kubelet

4.1.6.授权，创建目录

---

> hdss7-21.host.com上

---

[root@hdss7-21 conf]# chmod +x /opt/kubernetes/server/bin/kubelet.sh 
[root@hdss7-21 conf]# mkdir -p /data/logs/kubernetes/kube-kubelet   /data/kubelet

4.1.7.创建supervisor配置

[root@hdss7-21 conf]#  vim /etc/supervisord.d/kube-kubelet.ini
[program:kube-kubelet-7-21]
command=/opt/kubernetes/server/bin/kubelet.sh     ; the program (relative uses PATH, can take args)
numprocs=1                                        ; number of processes copies to start (def 1)
directory=/opt/kubernetes/server/bin              ; directory to cwd to before exec (def no cwd)
autostart=true                                    ; start at supervisord start (default: true)
autorestart=true                                  ; retstart at unexpected quit (default: true)
startsecs=30                                      ; number of secs prog must stay running (def. 1)
startretries=3                                    ; max # of serial start failures (default 3)
exitcodes=0,2                                     ; 'expected' exit codes for process (default 0,2)
stopsignal=QUIT                                   ; signal used to kill process (default TERM)
stopwaitsecs=10                                   ; max num secs to wait b4 SIGKILL (default 10)
user=root                                         ; setuid to this UNIX account to run the program
redirect_stderr=true                              ; redirect proc stderr to stdout (default false)
stdout_logfile=/data/logs/kubernetes/kube-kubelet/kubelet.stdout.log   ; stderr log path, NONE for none; default AUTO
stdout_logfile_maxbytes=64MB                      ; max # logfile bytes b4 rotation (default 50MB)
stdout_logfile_backups=4                          ; # of stdout logfile backups (default 10)
stdout_capture_maxbytes=1MB                       ; number of bytes in 'capturemode' (default 0)
stdout_events_enabled=false                       ; emit events on stdout writes (default false)

4.1.8.启动服务并检查

[root@hdss7-21 conf]# supervisorctl  update
[root@hdss7-21 conf]# supervisorctl status

4.1.9.部署所有节点

不同的地方
/opt/kubernetes/server/bin/kubelet.sh
--hostname-override
###############################################
/etc/supervisor.d/kube-kubelet.ini
[program:kube-kubelet-7-21]

4.1.10.检查所有节点并给节点打上标签

[root@hdss7-21 bin]# kubectl get nodes
[root@hdss7-21 bin]# kubectl label node hdss7-21.host.com node-role.kubernetes.io/master=
[root@hdss7-21 bin]# kubectl label node hdss7-21.host.com node-role.kubernetes.io/node=
[root@hdss7-21 bin]# kubectl label node hdss7-22.host.com node-role.kubernetes.io/master=
[root@hdss7-21 bin]# kubectl label node hdss7-22.host.com node-role.kubernetes.io/node=
[root@hdss7-21 bin]# kubectl get nodes

4.2.部署kube-proxy

4.2.1.集群架构

主机名	角色	IP地址
hdss7-21.host.com	kube-proxy	10.4.7.21
hdss7-22.host.com	kube-proxy	10.4.7.22

部署方法以hdss7-21.host.com为例

4.2.2.签发kube-proxy证书

---

> hdss7-200.host.com上

---

1、创建生成证书csr的json配置文件

[root@hdss7-200 certs]# vim kube-proxy-csr.json
{
    "CN": "system:kube-proxy",
    "key": {
        "algo": "rsa",
        "size": 2048
    },
    "names": [
        {
            "C": "CN",
            "ST": "beijing",
            "L": "beijing",
            "O": "od",
            "OU": "ops"
        }
    ]
}

2、生成kube-proxy证书文件

[root@hdss7-200 certs]# cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=client kube-proxy-csr.json |cfssl-json -bare kube-proxy-client

3、检查生成的证书文件

[root@hdss7-200 certs]# ll
kube-proxy-client.csr
kube-proxy-client-key.pem
kube-proxy-client.pem
kube-proxy-csr.json

4.2.3.拷贝证书文件至各节点，并创建配置

---

> hdss7-21.host.com上

---

1、拷贝证书文件

[root@hdss7-21 cert]# scp hdss7-200:/opt/certs/kube-proxy-client.pem .
[root@hdss7-21 cert]# scp hdss7-200:/opt/certs/kube-proxy-client-key.pem .

2、创建配置【在conf下】

(1)、set-cluster

[root@hdss7-21 conf]# kubectl config set-cluster myk8s \
--certificate-authority=/opt/kubernetes/server/bin/cert/ca.pem \
--embed-certs=true \
--server=https://10.4.7.10:7443 \
--kubeconfig=kube-proxy.kubeconfig

(2)、set-credentials

[root@hdss7-21 conf]#  kubectl config set-credentials kube-proxy \
  --client-certificate=/opt/kubernetes/server/bin/cert/kube-proxy-client.pem \
  --client-key=/opt/kubernetes/server/bin/cert/kube-proxy-client-key.pem \
  --embed-certs=true \
  --kubeconfig=kube-proxy.kubeconfig

(3)、set-context

[root@hdss7-21 conf]# kubectl config set-context myk8s-context \
--cluster=myk8s \
--user=kube-proxy \
--kubeconfig=kube-proxy.kubeconfig

(4)、use-context

[root@hdss7-21 conf]# kubectl config use-context myk8s-context --kubeconfig=kube-proxy.kubeconfig

(5)、拷贝kube-proxy.kubeconfig 到 hdss7-22.host.com的conf目录下

[root@hdss7-22 conf]# scp hdss7-21:/opt/kubernetes/server/bin/conf/kube-proxy.kubeconfig .

4.2.4.创建kube-proxy启动脚本

---

> hdss7-21.host.com上

---

1、加载ipvs模块

[root@hdss7-21 bin]# lsmod |grep ip_vs
[root@hdss7-21 bin]# vi /root/ipvs.sh
#!/bin/bash
ipvs_mods_dir="/usr/lib/modules/$(uname -r)/kernel/net/netfilter/ipvs"
for i in $(ls $ipvs_mods_dir|grep -o "^[^.]*")
do
  /sbin/modinfo -F filename $i &>/dev/null
  if [ $? -eq 0 ];then
    /sbin/modprobe $i
  fi
done    
[root@hdss7-21 bin]# chmod +x /root/ipvs.sh 
[root@hdss7-21 bin]# sh /root/ipvs.sh 
[root@hdss7-21 bin]# lsmod |grep ip_vs

2、创建启动脚本

[root@hdss7-21 bin]# vi /opt/kubernetes/server/bin/kube-proxy.sh
#!/bin/sh
./kube-proxy \
  --cluster-cidr 172.7.0.0/16 \
  --hostname-override hdss7-21.host.com \
  --proxy-mode=ipvs \
  --ipvs-scheduler=nq \
  --kubeconfig ./conf/kube-proxy.kubeconfig

4.2.5.授权，创建目录

[root@hdss7-22 bin]# ls -l /opt/kubernetes/server/bin/conf/|grep kube-proxy
[root@hdss7-22 bin]# chmod +x /opt/kubernetes/server/bin/kube-proxy.sh 
[root@hdss7-22 bin]# mkdir -p /data/logs/kubernetes/kube-proxy

4.2.6.创建supervisor配置

[root@hdss7-21 bin]# vi /etc/supervisord.d/kube-proxy.ini
[program:kube-proxy-7-21]
command=/opt/kubernetes/server/bin/kube-proxy.sh                     ; the program (relative uses PATH, can take args)
numprocs=1                                                           ; number of processes copies to start (def 1)
directory=/opt/kubernetes/server/bin                                 ; directory to cwd to before exec (def no cwd)
autostart=true                                                       ; start at supervisord start (default: true)
autorestart=true                                                     ; retstart at unexpected quit (default: true)
startsecs=30                                                         ; number of secs prog must stay running (def. 1)
startretries=3                                                       ; max # of serial start failures (default 3)
exitcodes=0,2                                                        ; 'expected' exit codes for process (default 0,2)
stopsignal=QUIT                                                      ; signal used to kill process (default TERM)
stopwaitsecs=10                                                      ; max num secs to wait b4 SIGKILL (default 10)
user=root                                                            ; setuid to this UNIX account to run the program
redirect_stderr=true                                                 ; redirect proc stderr to stdout (default false)
stdout_logfile=/data/logs/kubernetes/kube-proxy/proxy.stdout.log     ; stderr log path, NONE for none; default AUTO
stdout_logfile_maxbytes=64MB                                         ; max # logfile bytes b4 rotation (default 50MB)
stdout_logfile_backups=4                                             ; # of stdout logfile backups (default 10)
stdout_capture_maxbytes=1MB                                          ; number of bytes in 'capturemode' (default 0)
stdout_events_enabled=false                                          ; emit events on stdout writes (default false)

4.2.7.启动服务并检查

[root@hdss7-21 bin]# supervisorctl update
[root@hdss7-21 bin]# supervisorctl status
[root@hdss7-21 bin]# yum install ipvsadm -y
[root@hdss7-21 bin]# ipvsadm -Ln
[root@hdss7-21 bin]# kubectl get svc

4.2.8.部署所有节点

不同的地方

/opt/kubernetes/server/bin/kube-proxy.sh
--hostname-overrid

/etc/supervisor.d/kube-proxy.ini
[program:kube-proxy-7-21]

5.验证kubernetes集群

5.1.在任意一个节点上创建一个资源配置清单

---

> hdss7-21.host.com上

---

[root@hdss7-21 ~]# vim /root/nginx-ds.yaml
apiVersion: extensions/v1beta1
kind: DaemonSet
metadata:
  name: nginx-ds
spec:
  template:
    metadata:
      labels:
        app: nginx-ds
    spec:
      containers:
      - name: my-nginx
        image: harbor.od.com/public/nginx:v1.7.9
        ports:
        - containerPort: 80

5.2.应用资源配置，并检查

5.2.1.hdss7-21.host.com上

[root@hdss7-21 bin]# kubectl create -f /root/nginx-ds.yaml
[root@hdss7-21 bin]# kubectl get pods
[root@hdss7-21 bin]# kubectl get pods -o wide
[root@hdss7-21 bin]# curl 172.7.21.2

5.2.2.hdss7-22.host.com上

[root@hdss7-22 bin]# kubectl get pods
[root@hdss7-22 bin]# kubectl get pods -o wide
[root@hdss7-22 bin]# curl 172.7.22.2

5.2.3.查看kubernetes是否搭建好

[root@hdss7-21 bin]# kubectl get cs
[root@hdss7-21 bin]# kubectl get node
[root@hdss7-21 bin]# kubectl get pods