二进制安装Kubernetes(K8s)集群---从零安装教程

一、K8s介绍

1、K8s简介

官网链接：https://www.kubernetes.org.cn/k8s
Kubernetes一个用于容器集群的自动化部署、扩容以及运维的开源平台。

（1）使用Kubernetes，你可以快速高效地响应客户需求：

动态地对应用进行扩容。
无缝地发布新特性。
仅使用需要的资源以优化硬件使用。

（2）Kubernetes是：

简洁的：轻量级，简单，易上手
可移植的：公有，私有，混合，多重云（multi-cloud）
可扩展的: 模块化, 插件化, 可挂载, 可组合
可自愈的: 自动布置, 自动重启, 自动复制

2、下载地址

下载地址：https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG-1.8.md#v1813
百度网盘下载地址: https://pan.baidu.com/s/1rXo9XXi6k8GuwT7-kFKf9w 密码: 6tmc

这里写图片描述

二、实验环境

selinux iptables off

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1、安装说明

注意：配置文件中的注释只是为了说明对应功能，安装时需删除，否则会报错！！！

主机名	IP	系统版本	安装服务	功能说明
server1	10.10.10.1	rhel7.3	docker、etcd、api-server、scheduler、controller-manager、kubelet、flannel、docker-compose、harbor	作为集群的Master、服务环境控制相关模块、api网管控制相关模块、平台管理控制台模块
server2	10.10.10.2	rhel7.3	docker、etcd、kubelet、proxy、flannel	服务节点、用于容器化服务部署和运行
server3	10.10.10.3	rhel7.3	docker、etcd、kubelet、proxy、flannel	服务节点、用于容器化服务部署和运行

[root@server1 mnt]# cat /etc/hosts
10.10.10.1  server1
10.10.10.2  server2
10.10.10.3  server3

2、把swap分区关闭（3台）：

swapoff -a

我们基础环境就准备好了，下面进行k8s的环境的安装！！！

三、安装Docker（3台）

由于k8s基于docker，docker版本：docker-ce-18.03.1.ce-1.el7

1、如果之前已经安装了docker：

yum remove docker \
                 docker-client \
                 docker-client-latest \
                 docker-common \
                 docker-latest \
                 docker-latest-logrotate \
                 docker-logrotate \
                 docker-selinux \
                 docker-engine-selinux \
                 docker-engine

注意：如果你使用的系统不是7.3的话（例如7.0），需要把yum源换成7.3的yum源，由于依赖的版本过高无法安装！！！

2、安装

[root@server1 mnt]# ls /mnt
container-selinux-2.21-1.el7.noarch.rpm       libsemanage-python-2.5-8.el7.x86_64.rpm docker-ce-18.03.1.ce-1.el7.centos.x86_64.rpm  pigz-2.3.4-1.el7.x86_64.rpm docker-engine-1.8.2-1.el7.rpm                 policycoreutils-2.5-17.1.el7.x86_64.rpm libsemanage-2.5-8.el7.x86_64.rpm              policycoreutils-python-2.5- 17.1.el7.x86_64.rpm

[root@server1 mnt]# yum install -y /mnt/*
[root@server1 mnt]# systemctl enable docker
[root@server1 mnt]# systemctl start docker
[root@server1 mnt]# systemctl status docker            ###可以发现生成doker0网卡、172.17.0.1/16

3、测试

[root@server1 mnt]# docker version
 Client:
 Version:      18.03.1-ce
 API version:  1.37
 Go version:   go1.9.5
 Git commit:   9ee9f40
 Built:        Thu Apr 26 07:20:16 2018
 OS/Arch:      linux/amd64
 Experimental: false
 Orchestrator: swarm

Server:
 Engine:
  Version:      18.03.1-ce
  API version:  1.37 (minimum version 1.12)
  Go version:   go1.9.5
  Git commit:   9ee9f40
  Built:        Thu Apr 26 07:23:58 2018
  OS/Arch:      linux/amd64
  Experimental: false

4、如果想进行IP更改：

[root@server1 ~]# vim /etc/docker/daemon.json
{
        "bip": "172.17.0.1/24"
}
[root@server1 ~]# systemctl restart docker
[root@server1 ~]# ip addr show docker0
3: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN 
    link/ether 02:42:23:2d:56:4b brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/24 brd 172.17.0.255 scope global docker0
       valid_lft forever preferred_lft forever

四、安装etcd（3台）

1、建立安装存放的目录

[root@server1 mnt]# mkdir -p /usr/local/kubernetes/{bin,config}

[root@server1 mnt]# vim /etc/profile               ###为了方便能够直接执行命令，加入声明 export 
PATH=$PATH:/usr/local/kubernetes/bin
[root@server1 mnt]# . /etc/profile 或 source /etc/profile

[root@server1 mnt]# mkdir -p /var/lib/etcd/        ###建立工作目录--WorkingDirectory（3台）

2、解压etcd，移动命令到对应位置

[root@server1 ~]# tar xf /root/etcd-v3.1.7-linux-amd64.tar.gz
[root@server1 ~]# mv /root/etcd-v3.1.7-linux-amd64/etcd* /usr/local/kubernetes/bin/

3、etcd systemd配置文件

[root@server1 ~]# vim /usr/lib/systemd/system/etcd.service
[Unit]
Description=Etcd Server
After=network.target

[Service]
Type=simple
WorkingDirectory=/var/lib/etcd
EnvironmentFile=-/usr/local/kubernetes/config/etcd.conf
ExecStart=/usr/local/kubernetes/bin/etcd \
        --name=${ETCD_NAME} \
        --data-dir=${ETCD_DATA_DIR} \
        --listen-peer-urls=${ETCD_LISTEN_PEER_URLS} \
        --listen-client-urls=${ETCD_LISTEN_CLIENT_URLS} \
        --advertise-client-urls=${ETCD_ADVERTISE_CLIENT_URLS} \
        --initial-advertise-peer-urls=${ETCD_INITIAL_ADVERTISE_PEER_URLS} \
        --initial-cluster=${ETCD_INITIAL_CLUSTER} \
        --initial-cluster-token=${ETCD_INITIAL_CLUSTER_TOKEN} \
        --initial-cluster-state=${ETCD_INITIAL_CLUSTER_STATE}
Type=notify

[Install]
WantedBy=multi-user.target

4、etcd配置文件

[root@server1 ~]# cat /usr/local/kubernetes/config/etcd.conf 
#[member]
ETCD_NAME="etcd01"                                          ###修改为本机对应的名字，etcd02，etcd03
ETCD_DATA_DIR="/var/lib/etcd/default.etcd"
ETCD_LISTEN_PEER_URLS="http://0.0.0.0:2380"
ETCD_LISTEN_CLIENT_URLS="http://0.0.0.0:2379"

#[cluster]
ETCD_INITIAL_ADVERTISE_PEER_URLS="http://10.10.10.1:2380"     ###修改为本机IP
ETCD_INITIAL_CLUSTER="etcd01=http://10.10.10.1:2380,etcd02=http://10.10.10.2:2380,etcd03=http://10.10.10.3:2380"    ###把IP更换成集群IP
ETCD_INITIAL_CLUSTER_STATE="new"
ETCD_INITIAL_CLUSTER_TOKEN="k8s-etcd-cluster"
ETCD_ADVERTISE_CLIENT_URLS="http://10.10.10.1:2379"           ###修改为本机IP

[root@server1 ~]# systemctl enable etcd
[root@server1 ~]# systemctl start etcd

注意：etcd启动的话3台同时启动，否则启动会失败！！！

5、3台都安装完成我们可以进行测试：

[root@server1 ~]# etcdctl cluster-health
member 2cc6b104fe5377ef is healthy: got healthy result from http://10.10.10.3:2379
member 74565e08b84745a6 is healthy: got healthy result from http://10.10.10.2:2379
member af08b45e1ab8a099 is healthy: got healthy result from http://10.10.10.1:2379
cluster is healthy

[root@server1 kubernetes]# etcdctl member list                ###集群自己选择出leader
2cc6b104fe5377ef: name=etcd03 peerURLs=http://10.10.10.3:2380 clientURLs=http://10.10.10.3:2379 isLeader=true
74565e08b84745a6: name=etcd02 peerURLs=http://10.10.10.2:2380 clientURLs=http://10.10.10.2:2379 isLeader=false
af08b45e1ab8a099: name=etcd01 peerURLs=http://10.10.10.1:2380 clientURLs=http://10.10.10.1:2379 isLeader=false

五、安装Master节点组件

1、移动二进制到bin目录下

[root@server1 ~]# tar xf /root/kubernetes-server-linux-amd64.tar.gz
[root@server1 kubernetes]# mv /root/kubernetes/server/bin/{kube-apiserver,kube-scheduler,kube-controller-manager,kubectl,kubelet} /usr/local/kubernetes/bin

2、apiserver安装

（1）apiserver配置文件

[root@server1 ~]# vim /usr/local/kubernetes/config/kube-apiserver 
#启用日志标准错误
KUBE_LOGTOSTDERR="--logtostderr=true"
#日志级别
KUBE_LOG_LEVEL="--v=4"
#Etcd服务地址
KUBE_ETCD_SERVERS="--etcd-servers=http://10.10.10.1:2379"
#API服务监听地址
KUBE_API_ADDRESS="--insecure-bind-address=0.0.0.0"
#API服务监听端口
KUBE_API_PORT="--insecure-port=8080"
#对集群中成员提供API服务地址
KUBE_ADVERTISE_ADDR="--advertise-address=10.10.10.1"
#允许容器请求特权模式，默认false
KUBE_ALLOW_PRIV="--allow-privileged=false"
#集群分配的IP范围，自定义但是要跟后面的kubelet（服务节点）的配置DNS在一个区间
KUBE_SERVICE_ADDRESSES="--service-cluster-ip-range=10.0.0.0/24"

（2）apiserver systemd配置文件

[root@server1 ~]# vim /usr/lib/systemd/system/kube-apiserver.service
[Unit]
Description=Kubernetes API Server
Documentation=https://github.com/kubernetes/kubernetes
[Service]
EnvironmentFile=-/usr/local/kubernetes/config/kube-apiserver
ExecStart=/usr/local/kubernetes/bin/kube-apiserver \
${KUBE_LOGTOSTDERR} \
${KUBE_LOG_LEVEL} \
${KUBE_ETCD_SERVERS} \
${KUBE_API_ADDRESS} \
${KUBE_API_PORT} \
${KUBE_ADVERTISE_ADDR} \
${KUBE_ALLOW_PRIV} \
${KUBE_SERVICE_ADDRESSES}
Restart=on-failure
[Install]
WantedBy=multi-user.target

[root@server1 ~]# systemctl enable kube-apiserver
[root@server1 ~]# systemctl start kube-apiserver

3、安装Scheduler

（1）scheduler配置文件

[root@server1 ~]# vim /usr/local/kubernetes/config/kube-scheduler 
KUBE_LOGTOSTDERR="--logtostderr=true"
KUBE_LOG_LEVEL="--v=4"
KUBE_MASTER="--master=10.10.10.1:8080"
KUBE_LEADER_ELECT="--leader-elect"

（2）scheduler systemd配置文件

[root@server1 ~]# vim /usr/lib/systemd/system/kube-scheduler.service 
[Unit]
Description=Kubernetes Scheduler
Documentation=https://github.com/kubernetes/kubernetes
[Service]
EnvironmentFile=-/usr/local/kubernetes/config/kube-scheduler
ExecStart=/usr/local/kubernetes/bin/kube-scheduler \
${KUBE_LOGTOSTDERR} \
${KUBE_LOG_LEVEL} \
${KUBE_MASTER} \
${KUBE_LEADER_ELECT}
Restart=on-failure
[Install]
WantedBy=multi-user.target

[root@server1 ~]# systemctl enable kube-scheduler 
[root@server1 ~]# systemctl start kube-scheduler

4、controller-manager安装

（1）controller-manage配置文件

[root@server1 ~]# vim /usr/local/kubernetes/config/kube-controller-manager 
KUBE_LOGTOSTDERR="--logtostderr=true"
KUBE_LOG_LEVEL="--v=4"
KUBE_MASTER="--master=10.10.10.1:8080"

（2）controller-manage systemd配置文件

[root@server1 ~]# vim /usr/lib/systemd/system/kube-controller-manager.service
[Unit]
Description=Kubernetes Controller Manager
Documentation=https://github.com/kubernetes/kubernetes
[Service]
EnvironmentFile=-/usr/local/kubernetes/config/kube-controller-manager
ExecStart=/usr/local/kubernetes/bin/kube-controller-manager \
${KUBE_LOGTOSTDERR} \
${KUBE_LOG_LEVEL} \
${KUBE_MASTER} \
${KUBE_LEADER_ELECT}
Restart=on-failure
[Install]
WantedBy=multi-user.target

[root@server1 ~]# systemctl enable kube-controller-manager
[root@server1 ~]# systemctl start kube-controller-manager

5、安装kubelet

安装完此服务，kubectl get nodes就可以看到Master，也可以选择不安装！！！

（1）kubeconfig配置文件

[root@server1 ~]# vim /usr/local/kubernetes/config/kubelet.kubeconfig
apiVersion: v1
kind: Config
clusters:
  - cluster:
      server: http://10.10.10.1:8080                ###Master的IP，即自身IP
    name: local
contexts:
  - context:
      cluster: local
    name: local
current-context: local

（2）kubelet配置文件

[root@server1 ~]# vim /usr/local/kubernetes/config/kubelet
# 启用日志标准错误
KUBE_LOGTOSTDERR="--logtostderr=true"
# 日志级别
KUBE_LOG_LEVEL="--v=4"
# Kubelet服务IP地址
NODE_ADDRESS="--address=10.10.10.1"
# Kubelet服务端口
NODE_PORT="--port=10250"
# 自定义节点名称
NODE_HOSTNAME="--hostname-override=10.10.10.1"
# kubeconfig路径，指定连接API服务器
KUBELET_KUBECONFIG="--kubeconfig=/usr/local/kubernetes/config/kubelet.kubeconfig"
# 允许容器请求特权模式，默认false
KUBE_ALLOW_PRIV="--allow-privileged=false"
# DNS信息，DNS的IP
KUBELET_DNS_IP="--cluster-dns=10.0.0.2"
KUBELET_DNS_DOMAIN="--cluster-domain=cluster.local"
# 禁用使用Swap
KUBELET_SWAP="--fail-swap-on=false"

（3）kubelet systemd配置文件

[root@server1 ~]# vim /usr/lib/systemd/system/kubelet.service
[Unit]
Description=Kubernetes Kubelet
After=docker.service
Requires=docker.service
[Service]
EnvironmentFile=-/usr/local/kubernetes/config/kubelet
ExecStart=/usr/local/kubernetes/bin/kubelet \
${KUBE_LOGTOSTDERR} \
${KUBE_LOG_LEVEL} \
${NODE_ADDRESS} \
${NODE_PORT} \
${NODE_HOSTNAME} \
${KUBELET_KUBECONFIG} \
${KUBE_ALLOW_PRIV} \
${KUBELET_DNS_IP} \
${KUBELET_DNS_DOMAIN} \
${KUBELET_SWAP}
Restart=on-failure
KillMode=process
[Install]
WantedBy=multi-user.target

（4）启动服务，并设置开机启动：

[root@server1 ~]# swapoff -a                 ###启动之前要先关闭swap
[root@server1 ~]# systemctl enable kubelet
[root@server1 ~]# systemctl start kubelet

注意：服务启动先启动etcd，再启动apiserver，其他无顺序！！！

六、安装node(server2和server3)

1、移动二进制到bin目录

[root@server2 ~]# tar xf /root/kubernetes-node-linux-amd64.tar.gz 
[root@server2 ~]# mv /root/kubernetes/node/bin/{kubelet,kube-proxy} /usr/local/kubernetes/bin/

2、安装kubelet

（1）kubeconfig配置文件

注意：kubeconfig文件用于kubelet连接master apiserver

[root@server2 ~]# vim /usr/local/kubernetes/config/kubelet.kubeconfig
apiVersion: v1
kind: Config
clusters:
  - cluster:
    server: http://10.10.10.1:8080
    name: local
contexts:
  - context:
    cluster: local
    name: local
current-context: local

（2）kubelet配置文件

[root@server2 ~]# cat /usr/local/kubernetes/config/kubelet
#启用日志标准错误
KUBE_LOGTOSTDERR="--logtostderr=true"
#日志级别
KUBE_LOG_LEVEL="--v=4"
#Kubelet服务IP地址（自身IP）
NODE_ADDRESS="--address=10.10.10.2"
#Kubelet服务端口
NODE_PORT="--port=10250"
#自定义节点名称（自身IP）
NODE_HOSTNAME="--hostname-override=10.10.10.2"
#kubeconfig路径，指定连接API服务器
KUBELET_KUBECONFIG="--kubeconfig=/usr/local/kubernetes/config/kubelet.kubeconfig"
#允许容器请求特权模式，默认false
KUBE_ALLOW_PRIV="--allow-privileged=false"
#DNS信息，跟上面给的地址段对应
KUBELET_DNS_IP="--cluster-dns=10.0.0.2"
KUBELET_DNS_DOMAIN="--cluster-domain=cluster.local"
#禁用使用Swap
KUBELET_SWAP="--fail-swap-on=false"

（3）kubelet systemd配置文件

[root@server2 ~]# vim /usr/lib/systemd/system/kubelet.service
[Unit]
Description=Kubernetes Kubelet
After=docker.service
Requires=docker.service
[Service]
EnvironmentFile=-/usr/local/kubernetes/config/kubelet
ExecStart=/usr/local/kubernetes/bin/kubelet \
${KUBE_LOGTOSTDERR} \
${KUBE_LOG_LEVEL} \
${NODE_ADDRESS} \
${NODE_PORT} \
${NODE_HOSTNAME} \
${KUBELET_KUBECONFIG} \
${KUBE_ALLOW_PRIV} \
${KUBELET_DNS_IP} \
${KUBELET_DNS_DOMAIN} \
${KUBELET_SWAP}
Restart=on-failure
KillMode=process
[Install]
WantedBy=multi-user.target

（4）启动服务，并设置开机启动：

[root@server2 ~]# swapoff -a                 ###启动之前要先关闭swap
[root@server2 ~]# systemctl enable kubelet
[root@server2 ~]# systemctl start kubelet

3、安装proxy

（1）proxy配置文件

[root@server2 ~]# cat /usr/local/kubernetes/config/kube-proxy
#启用日志标准错误
KUBE_LOGTOSTDERR="--logtostderr=true"
#日志级别
KUBE_LOG_LEVEL="--v=4"
#自定义节点名称（自身IP）
NODE_HOSTNAME="--hostname-override=10.10.10.2"
#API服务地址（MasterIP）
KUBE_MASTER="--master=http://10.10.10.1:8080"

（2）proxy systemd配置文件

[root@server2 ~]# cat /usr/lib/systemd/system/kube-proxy.service
[Unit]
Description=Kubernetes Proxy
After=network.target
[Service]
EnvironmentFile=-/usr/local/kubernetes/config/kube-proxy
ExecStart=/usr/local/kubernetes/bin/kube-proxy \
${KUBE_LOGTOSTDERR} \
${KUBE_LOG_LEVEL} \
${NODE_HOSTNAME} \
${KUBE_MASTER}
Restart=on-failure
[Install]
WantedBy=multi-user.target

[root@server2 ~]# systemctl enable kube-proxy
[root@server2 ~]# systemctl restart kube-proxy

七、安装flannel(3台)

1、移动二进制到bin目录

[root@server1 ~]# tar xf flannel-v0.7.1-linux-amd64.tar.gz 
[root@server1 ~]# mv /root/{flanneld,mk-docker-opts.sh} /usr/local/kubernetes/bin/

2、flannel配置文件

[root@server1 kubernetes]# vim /usr/local/kubernetes/config/flanneld
# Flanneld configuration options  
# etcd url location.  Point this to the server where etcd runs，自身IP
FLANNEL_ETCD="http://10.10.10.1:2379"

# etcd config key.  This is the configuration key that flannel queries
# For address range assignment，etcd-key的目录
FLANNEL_ETCD_KEY="/atomic.io/network"

# Any additional options that you want to pass，根据自己的网卡名填写
FLANNEL_OPTIONS="--iface=eth0"

3、flannel systemd配置文件

[root@server1 kubernetes]# vim /usr/lib/systemd/system/flanneld.service 
[Unit]
Description=Flanneld overlay address etcd agent
After=network.target
After=network-online.target
Wants=network-online.target
After=etcd.service
Before=docker.service

[Service]
Type=notify
EnvironmentFile=/usr/local/kubernetes/config/flanneld
EnvironmentFile=-/etc/sysconfig/docker-network
ExecStart=/usr/local/kubernetes/bin/flanneld -etcd-endpoints=${FLANNEL_ETCD} -etcd-prefix=${FLANNEL_ETCD_KEY} $FLANNEL_OPTIONS
ExecStartPost=/usr/local/kubernetes/bin/mk-docker-opts.sh -k DOCKER_NETWORK_OPTIONS -d /run/flannel/docker
Restart=on-failure

[Install]
WantedBy=multi-user.target
RequiredBy=docker.service

4、设置etcd-key

注意：在一台上设置即可，会同步过去！！！

[root@server1 ~]# etcdctl mkdir /atomic.io/network
###下面的IP跟你docker本身的IP地址一个网段
[root@server1 ~]# etcdctl mk /atomic.io/network/config  "{ \"Network\": \"172.17.0.0/16\", \"SubnetLen\": 24, \"Backend\": { \"Type\": \"vxlan\" } }" 
{ "Network": "172.17.0.0/16", "SubnetLen": 24, "Backend": { "Type": "vxlan" } }

5、设置docker配置

因为docker要使用flanneld，所以在其配置中加入EnvironmentFile=-/etc/sysconfig/flanneld，EnvironmentFile=-/run/flannel/subnet.env，–bip=${FLANNEL_SUBNET}

[root@server1 ~]# vim /usr/lib/systemd/system/docker.service

这里写图片描述

6、启动flannel和docker

[root@server1 ~]# systemctl enable flanneld.service
[root@server1 ~]# systemctl restart flanneld.service
[root@server1 ~]# systemctl daemon-reload 
[root@server1 ~]# systemctl restart docker.service

7、测试flannel

ip addr                 ###发现flanneld生成的IP和Docker的IP在同一个网段即完成

这里写图片描述

8、集群测试

如果Master中没有装kubelet，kubectl get nodes就看不到Master！！！

[root@server1 ~]# kubectl get nodes
NAME         STATUS    ROLES     AGE       VERSION
10.10.10.1   Ready     <none>    1d        v1.8.13
10.10.10.2   Ready     <none>    1d        v1.8.13
10.10.10.3   Ready     <none>    1d        v1.8.13

[root@server1 ~]# kubectl get cs
NAME                 STATUS    MESSAGE              ERROR
controller-manager   Healthy   ok                   
scheduler            Healthy   ok                   
etcd-0               Healthy   {"health": "true"}

这样一个简单的K8s集群就安装完成了，下面介绍下harbor安装以及插件的安装！！！

八、harbor安装

此处我是用harbor来管理我的镜像仓库，它的介绍我就不多介绍了！！！
注意：如果要使用本地镜像可以不用安装harbor，但是要安装busybox，并设置yaml配置文件imagePullPolicy: Never或imagePullPolicy: IfNotPresent在image同级下加入即可，默认方式为always使用网络的镜像。

1、安装docker-compose

（1）下载方法

https://github.com/docker/compose/releases/           ###官网下载地址
[root@server1 ~]# wget https://github.com/docker/compose/releases/download/1.22.0/docker-compose-Linux-x86_64

（2）安装

[root@server1 ~]# cp docker-compose-Linux-x86_64 /usr/local/kubernetes/bin/docker-compose
[root@server1 ~]# chmod +x /usr/local/kubernetes/bin/docker-compose

（3）查看版本

[root@server1 ~]# docker-compose -version
docker-compose version 1.22.0, build f46880fe

2、安装harbor

（1）下载方法

官网安装参考链接：https://github.com/vmware/harbor/blob/master/docs/installation_guide.md

https://github.com/vmware/harbor/releases#install            ###下载地址
[root@server1 ~]# wget http://harbor.orientsoft.cn/harbor-v1.5.0/harbor-offline-installer-v1.5.0.tgz

（2）解压tar包

[root@server1 ~]# tar xf harbor-offline-installer-v1.5.0.tgz -C /usr/local/kubernetes/

（3）配置harbor.cfg

[root@server1 ~]# grep -v "^#" /usr/local/kubernetes/harbor/harbor.cfg 
_version = 1.5.0
###修改为本机IP即可
hostname = 10.10.10.1
ui_url_protocol = http
max_job_workers = 50 
customize_crt = on
ssl_cert = /data/cert/server.crt
ssl_cert_key = /data/cert/server.key
secretkey_path = /data
admiral_url = NA
log_rotate_count = 50
log_rotate_size = 200M
http_proxy =
https_proxy =
no_proxy = 127.0.0.1,localhost,ui
email_identity = 
email_server = smtp.mydomain.com
email_server_port = 25
email_username = [email protected]
email_password = abc
email_from = admin <[email protected]>
email_ssl = false
email_insecure = false
harbor_admin_password = Harbor12345
auth_mode = db_auth
ldap_url = ldaps://ldap.mydomain.com
ldap_basedn = ou=people,dc=mydomain,dc=com
ldap_uid = uid 
ldap_scope = 2 
ldap_timeout = 5
ldap_verify_cert = true
ldap_group_basedn = ou=group,dc=mydomain,dc=com
ldap_group_filter = objectclass=group
ldap_group_gid = cn
ldap_group_scope = 2
self_registration = on
token_expiration = 30
project_creation_restriction = everyone
db_host = mysql
db_password = root123
db_port = 3306
db_user = root
redis_url =
clair_db_host = postgres
clair_db_password = password
clair_db_port = 5432
clair_db_username = postgres
clair_db = postgres
uaa_endpoint = uaa.mydomain.org
uaa_clientid = id
uaa_clientsecret = secret
uaa_verify_cert = true
uaa_ca_cert = /path/to/ca.pem
registry_storage_provider_name = filesystem
registry_storage_provider_config =

（4）安装

[root@server1 ~]# cd /usr/local/kubernetes/harbor/           ###一定要进入此目录，日志放在/var/log/harbor/
[root@server1 harbor]# ./prepare 
[root@server1 harbor]# ./install.sh

（5）查看生成的镜像

[root@server1 harbor]# docker ps        ###状态为up

此时你也可以通过浏览器输入http:10.10.10.1（Master的IP）进行登陆，默认账号：admin默认密码：Harbor12345！！！

（6）加入认证

<1> server1（Mster）

[root@server1 harbor]# vim /etc/sysconfig/docker 
OPTIONS='--selinux-enabled --log-driver=journald --signature-verification=false --insecure-registry=10.10.10.1'

<2> 三台都加入

[root@server1 ~]# vim /etc/docker/daemon.json 
{
  "insecure-registries": [
    "10.10.10.1"
  ]
}

（7）测试

<1> shell中登陆

[root@server1 ~]# docker login 10.10.10.1        ###账号：admin 密码：Harbor12345
Username: admin
Password: 
Login Succeeded

登陆成功后，我们便可以使用harbor仓库了！！！

<2> 浏览器中登陆
这里写图片描述

（8）登陆报错：

<1> 报错：

[root@server1 ~]# docker login 10.10.10.1 
Error response from daemon: Get http://10.10.10.1/v2/: unauthorized: authentication required

<2> 解决方法：

加入认证，上面有写，或者就是密码输入错误！！！

（9）harbor基本操作

<1> 下线

# cd /usr/local/kubernetes/harbor/
# docker-compose down -v 或 docker-compose stop

<2> 修改配置

修改harbor.cfg和docker-compose.yml

<3> 重新部署上线

# cd /usr/local/kubernetes/harbor/
# ./prepare
# docker-compose up -d 或 docker-compose start

3、harbor使用

用浏览器登陆你可以发现其默认是有个项目library，也可以自己创建，我们来使用此项目！！！

（1）对镜像进行处理

###打包及删除
docker tag gcr.io/google_containers/kubernetes-dashboard-amd64:v1.8.3 10.10.10.1/library/kubernetes-dashboard-amd64:v1.8.3
docker rmi gcr.io/google_containers/kubernetes-dashboard-amd64:v1.8.3
docker tag gcr.io/google_containers/k8s-dns-sidecar-amd64:1.14.7 10.10.10.1/library/k8s-dns-sidecar-amd64:1.14.7
docker rmi gcr.io/google_containers/k8s-dns-sidecar-amd64:1.14.7
docker tag gcr.io/google_containers/k8s-dns-kube-dns-amd64:1.14.7 10.10.10.1/library/k8s-dns-kube-dns-amd64:1.14.7
docker rmi gcr.io/google_containers/k8s-dns-kube-dns-amd64:1.14.7
docker tag gcr.io/google_containers/k8s-dns-dnsmasq-nanny-amd64:1.14.7 10.10.10.1/library/k8s-dns-dnsmasq-nanny-amd64:1.14.7
docker rmi gcr.io/google_containers/k8s-dns-dnsmasq-nanny-amd64:1.14.7

###推送到harbor上
docker push 10.10.10.1/library/kubernetes-dashboard-amd64:v1.8.3
docker push 10.10.10.1/library/k8s-dns-sidecar-amd64:1.14.7
docker push 10.10.10.1/library/k8s-dns-kube-dns-amd64:1.14.7 
docker push 10.10.10.1/library/k8s-dns-dnsmasq-nanny-amd64:1.14.7

（2）通过浏览器测试

这里写图片描述

九、kube-dns安装

下载地址：https://github.com/kubernetes/kubernetes/tree/release-1.8/cluster/addons/dns

（1）我们需要的是这几个包：

kubedns-sa.yaml
kubedns-svc.yaml.base
kubedns-cm.yaml 
kubedns-controller.yaml.base

[root@server1 data]# unzip kubernetes-release-1.8.zip 
[root@server1 dns]# pwd
/data/kubernetes-release-1.8/cluster/addons/dns
[root@server1 dns]# cp {kubedns-svc.yaml.base,kubedns-cm.yaml,kubedns-controller.yaml.base,kubedns-sa.yaml} /root

（2）clusterIP查看

[root@server2 ~]# cat /usr/local/kubernetes/config/kubelet

这里写图片描述

（3）4个yaml可以合并成此kube-dns.yaml

apiVersion: v1
kind: Service
metadata:
  name: kube-dns
  namespace: kube-system
  labels:
    k8s-app: kube-dns
    kubernetes.io/cluster-service: "true"
    addonmanager.kubernetes.io/mode: Reconcile
    kubernetes.io/name: "KubeDNS"
spec:
  selector:
    k8s-app: kube-dns
  clusterIP: 10.0.0.2                 ###此地址是在kubelet的DNS地址
  ports:
  - name: dns
    port: 53
    protocol: UDP
  - name: dns-tcp
    port: 53
    protocol: TCP
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: kube-dns
  namespace: kube-system
  labels:
    addonmanager.kubernetes.io/mode: EnsureExists
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: kube-dns
  namespace: kube-system
  labels:
    k8s-app: kube-dns
    kubernetes.io/cluster-service: "true"
    addonmanager.kubernetes.io/mode: Reconcile
spec:
  strategy:
    rollingUpdate:
      maxSurge: 10%
      maxUnavailable: 0
  selector:
    matchLabels:
      k8s-app: kube-dns
  template:
    metadata:
      labels:
        k8s-app: kube-dns
      annotations:
        scheduler.alpha.kubernetes.io/critical-pod: ''
    spec:
      tolerations:
      - key: "CriticalAddonsOnly"
        operator: "Exists"
      volumes:
      - name: kube-dns-config
        configMap:
          name: kube-dns
          optional: true
      #imagePullSecrets:
      #- name: registrykey-aliyun-vpc
      containers:
      - name: kubedns
        image: 10.10.10.1/library/k8s-dns-kube-dns-amd64:1.14.7
        resources:
          limits:
            memory: 170Mi
          requests:
            cpu: 100m
            memory: 70Mi
        livenessProbe:
          httpGet:
            path: /healthcheck/kubedns
            port: 10054
            scheme: HTTP
          initialDelaySeconds: 60
          timeoutSeconds: 5
          successThreshold: 1
          failureThreshold: 5
        readinessProbe:
          httpGet:
            path: /readiness
            port: 8081
            scheme: HTTP
          # we poll on pod startup for the Kubernetes master service and
          # only setup the /readiness HTTP server once that's available.
          initialDelaySeconds: 3
          timeoutSeconds: 5
        args:
        - --domain=cluster.local
        - --dns-port=10053
        - --config-dir=/kube-dns-config
        - --kube-master-url=http://10.10.10.1:8080             ###修改为集群地址
        - --v=2
        env:
        - name: PROMETHEUS_PORT
          value: "10055"
        ports:
        - containerPort: 10053
          name: dns-local
          protocol: UDP
        - containerPort: 10053
          name: dns-tcp-local
          protocol: TCP
        - containerPort: 10055
          name: metrics
          protocol: TCP
        volumeMounts:
        - name: kube-dns-config
          mountPath: /kube-dns-config
      - name: dnsmasq
        image: 10.10.10.1/library/k8s-dns-dnsmasq-nanny-amd64:1.14.7
        livenessProbe:
          httpGet:
            path: /healthcheck/dnsmasq
            port: 10054
            scheme: HTTP
          initialDelaySeconds: 60
          timeoutSeconds: 5
          successThreshold: 1
          failureThreshold: 5
        args:
        - -v=2
        - -logtostderr
        - -configDir=/etc/k8s/dns/dnsmasq-nanny
        - -restartDnsmasq=true
        - --
        - -k
        - --cache-size=1000
        - --no-negcache
        - --log-facility=-
        - --server=/cluster.local/127.0.0.1#10053
        - --server=/in-addr.arpa/127.0.0.1#10053
        - --server=/ip6.arpa/127.0.0.1#10053
        ports:
        - containerPort: 53
          name: dns
          protocol: UDP
        - containerPort: 53
          name: dns-tcp
          protocol: TCP
        # see: https://github.com/kubernetes/kubernetes/issues/29055 for details
        resources:
          requests:
            cpu: 150m
            memory: 20Mi
        volumeMounts:
        - name: kube-dns-config
          mountPath: /etc/k8s/dns/dnsmasq-nanny
      - name: sidecar
        image: 10.10.10.1/library/k8s-dns-sidecar-amd64:1.14.7
        livenessProbe:
          httpGet:
            path: /metrics
            port: 10054
            scheme: HTTP
          initialDelaySeconds: 60
          timeoutSeconds: 5
          successThreshold: 1
          failureThreshold: 5
        args:
        - --v=2
        - --logtostderr
        - --probe=kubedns,127.0.0.1:10053,kubernetes.default.svc.cluster.local,5,SRV
        - --probe=dnsmasq,127.0.0.1:53,kubernetes.default.svc.cluster.local,5,SRV
        ports:
        - containerPort: 10054
          name: metrics
          protocol: TCP
        resources:
          requests:
            memory: 20Mi
            cpu: 10m
      dnsPolicy: Default  # Don't use cluster DNS.

（4）创建及删除

# kubectl create -f kube-dns.yaml             ###创建
# kubectl delete -f kube-dns.yaml             ###删除，此步骤不用执行

（5）查看

[root@server1 ~]# kubectl get pods -n kube-system
NAME                                    READY     STATUS             RESTARTS   AGE
kube-dns-5855d8c4f7-sbb7x               3/3       Running            0   

[root@server1 ~]# kubectl describe pod -n kube-system kube-dns-5855d8c4f7-sbb7x         ###报错的话，可以查看报错信息

十、安装dashboard

1、配置kube-dashboard.yaml

kind: Deployment
apiVersion: apps/v1beta2
metadata:
  labels:
    k8s-app: kubernetes-dashboard
  name: kubernetes-dashboard
  namespace: kube-system
spec:
  replicas: 1
  revisionHistoryLimit: 10
  selector:
    matchLabels:
      k8s-app: kubernetes-dashboard
  template:
    metadata:
      labels:
        k8s-app: kubernetes-dashboard
    spec:
      containers:
      - name: kubernetes-dashboard
        image: 10.10.10.1/library/kubernetes-dashboard-amd64:v1.8.3 
        ports:
        - containerPort: 9090
          protocol: TCP
        args:
          - --apiserver-host=http://10.10.10.1:8080          ###修改为Master的IP
        volumeMounts:
        - mountPath: /tmp
          name: tmp-volume
        livenessProbe:
          httpGet:
            path: /
            port: 9090
          initialDelaySeconds: 30
          timeoutSeconds: 30
      volumes:
      - name: tmp-volume
        emptyDir: {}
      serviceAccountName: kubernetes-dashboard
      # Comment the following tolerations if Dashboard must not be deployed on master
      tolerations:
      - key: node-role.kubernetes.io/master
        effect: NoSchedule

---

kind: Service
apiVersion: v1
metadata:
  labels:
    k8s-app: kubernetes-dashboard
  name: kubernetes-dashboard
  namespace: kube-system
spec:
  type: NodePort
  ports:
  - port: 80
    targetPort: 9090
    nodePort: 30090
  selector:
    k8s-app: kubernetes-dashboard

2、创建dashboard

# kubectl create -f kube-dashboard.yaml

3、查看node的IP

[root@server1 dashboard]# kubectl get pods -o wide --namespace kube-system
NAME                                    READY     STATUS             RESTARTS   AGE       IP            NODE
kube-dns-5855d8c4f7-sbb7x               3/3       Running            0          1h       172.17.89.3   10.10.10.1
kubernetes-dashboard-7f8b5f54f9-gqjsh   1/1       Running            0          1h       172.17.39.2   10.10.10.3

4、测试

（1）浏览器

http://10.10.10.3:30090

（2）结果

这里写图片描述