第一次搭建kubernetes经历

情到浓时终转凉″ 提交于 2020-08-17 06:44:38

1.准备部署环境
master 192.168.40.162
node 192.168.40.220

2.下载部署包(从192.168.40.33复制部署包)
scp /opt/kylincloud2_2.0_ft2000_v0.0.1.13_20200511.tar.gz root@192.168.40.162:/opt/

3.免密认证
通过192.168.40.192对192.168.40.162及192.168.40.220做免密认证,即master节点对自身及所有node节点做免密认证
(1)ssh-keygen -t rsa
(2)cat id_rsa.pub>>authorized_keys
(3)chmod 710 authorized_keys
(4)scp -r authorized_keys root@192.168.40.220:~/.ssh




4.时间同步
(1)ntpdate 192.168.40.253(此命令分别执行在master及node)
将192.168.40.162和192.168.40.220统一与192.168.40.253时间保持一致,即master及所有节点保持统一一致时间
(2)hwclock -w(此命令分别执行在master及node)
将软件时间写入硬件时间,硬件时间是BIOS的时间



5.根据需求修改default.yaml文件

示例一:(全部配置内容)
install_path: /opt/cms/kylincloud2 #安装目录

modules:
etcd: etcd-3.3.13
docker: docker-17.03
kube: kube-1.14.2
keepalived: keepalived-1.3.5
cni: cni-arm64
cfssl: cfssl-1.3.2





cluster info

clustername: kubernetes-phk
clusteruser: kubernetes-admin

docker_registry

registry:
domain: kylincloud2.hub
admin_password: Harbor12345
db:
host: mysql
port: 3306
user: root
passwd: root123
clair_password: password







ntp

ntpserver: 192.168.40.253

nfs 不能注释,永远为最新的nfs服务端信息

nfs_server: 192.168.40.253
src_path: /mnt/nfs/testphk
storage: 192.168.40.253:/mnt/nfs/testphk /nas nfs defaults 0 1
mount_path: /nas


etcd cluster name

etcdname: kube-etcd

head -c 16 /dev/urandom | od -An -t x | tr -d ' '

bootstrap_token: c30302226d4b810e08731702d3890f51
ui_url: ui.kylincloud2.hub

head -c 32 /dev/urandom | base64

encryption_token: d/FP5wCz8lV9s+bU1tnvsuj9C4hZWZRcMVud18E0LMc=

cloudapiserver

dnsserver: 192.168.40.32
dnsport: 9999

NET

vip: 192.168.40.33 #单控模式为 master的ip,多控模式下为虚拟ip,跟集群同网段且不被占用

oldvip: 192.168.17.222 #默认注释掉,当使用 --ip参数时需要将历史的vip地址写入

virtual_router_id: 88 #keepalived 集群通信的心跳值,确保不跟网段中其他keepalived集群的心跳值一致即可
service:
cidr: 10.10.0.0/16
DNS_ip: 10.10.1.10
cluster_domain: cluster.local
pod_net:
cidr: 10.244.0.0/16





部署模式为单控,以及多控不需要lvs的时候注释

lvs:

- name: lvs-1

ip: 192.168.40.207

state: MASTER

- name: lvs-2

ip: 192.168.40.208

state: BACKUP

master:

  • name: master1
    ip: 192.168.40.33 #第一个ip必须是执行脚本所在的机器

- name: master2

ip: 192.168.40.161

- name: master3

ip: 192.168.40.162

nodes:

  • name: node-1
    ip: 192.168.40.34
    label: rack=bgpt

- name: node-2

ip: 192.168.40.223

label: rack=bgpt1

- name: node-3

ip: 192.168.40.35

label: rack=bgpt1

- name: node-4

ip: 192.168.40.224

label: rack=bgpt

- name: node-5

ip: 192.168.40.207

label: rack=bgpt

- name: node-6

ip: 192.168.40.208

label: rack=bgpt1

新加计算节点,初次部署注释即可

addnodes:

- name: node-3

ip: 192.168.40.35

label: rack=bgpt

- name: node-4

ip: 192.168.40.208

label: rack=bgpt1

示例二:(本次部署所需配置)
install_path: /opt/cms/kylincloud2 #安装目录

modules:
etcd: etcd-3.3.13
docker: docker-17.03
kube: kube-1.14.2
keepalived: keepalived-1.3.5
cni: cni-arm64
cfssl: cfssl-1.3.2





cluster info

clustername: kubernetes
clusteruser: kubernetes-admin

docker_registry

registry:
domain: kylincloud2.hub
admin_password: Harbor12345
db:
host: mysql
port: 3306
user: root
passwd: root123
clair_password: password







ntp

ntpserver: 192.168.40.253

nfs 不能注释,永远为最新的nfs服务端信息

nfs_server: 192.168.40.253
src_path: /mnt/nfs/testphk
storage: 192.168.40.253:/mnt/nfs/testphk /nas nfs defaults 0 1
mount_path: /nas


etcd cluster name

etcdname: kube-etcd

head -c 16 /dev/urandom | od -An -t x | tr -d ' '

bootstrap_token: c30302226d4b810e08731702d3890f51
ui_url: ui.kylincloud2.hub

head -c 32 /dev/urandom | base64

encryption_token: d/FP5wCz8lV9s+bU1tnvsuj9C4hZWZRcMVud18E0LMc=

cloudapiserver

dnsserver: 192.168.40.162
dnsport: 9999

NET

vip: 192.168.40.162 #单控模式为 master的ip,多控模式下为虚拟ip,跟集群同网段且不被占用

oldvip: 192.168.17.222 #默认注释掉,当使用 --ip参数时需要将历史的vip地址写入

virtual_router_id: 41 #keepalived 集群通信的心跳值,确保不跟网段中其他keepalived集群的心跳值一致即可
service:
cidr: 10.10.0.0/16
DNS_ip: 10.10.1.10
cluster_domain: cluster.local
pod_net:
cidr: 10.244.0.0/16





master:

  • name: master1
    ip: 192.168.40.162 #第一个ip必须是执行脚本所在的机器
    nodes:

  • name: node-1
    ip: 192.168.40.220
    label: rack=bgpt

6.开始部署
./install --master

7.验证部署是否成功
kubectl get po -A -o wide

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