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K8s和TiDB都是目前开源社区中活跃的开源产品，TiDB Operator项目是一个在K8s上编排管理TiDB集群的项目。本文详细记录了部署K8s及install TiDB Operator的详细实施过程，希望能对刚"入坑"的同学有所帮助。
K8s和TiDB都是目前开源社区中活跃的开源产品，TiDB Operator项目是一个在K8s上编排管理TiDB集群的项目。本文详细记录了部署K8s及install TiDB Operator的详细实施过程，希望能对刚"入坑"的同学有所帮助。
一、环境
Ubuntu 16.04
K8s 1.14.1
Ubuntu 16.04
K8s 1.14.1
二、Kubespray安装K8s
配置免密登录
1yum -y install expect
vi /tmp/autocopy.exp
1#!/usr/bin/expect
2
3set timeout
4set user_hostname [lindex $argv ]
5set password [lindex $argv ]
6spawn ssh-copy-id $user_hostname
7 expect {
8 "(yes/no)?"
9 {
10 send "yes\n"
11 expect "*assword:" { send "$password\n"}
12 }
13 "*assword:"
14 {
15 send "$password\n"
16 }
17 }
18expect eof
1ssh-keyscan addedip >> ~/.ssh/known_hosts
2
3ssh-keygen -t rsa -P ''
4
5for i in 10.0.0.{31,32,33,40,10,20，50}; do ssh-keyscan $i >> ~/.ssh/known_hosts ; done
6
7/tmp/autocopy.exp root@addeip
8ssh-copy-id addedip
9
10/tmp/autocopy.exp root@10.0.0.31
11/tmp/autocopy.exp root@10.0.0.32
12/tmp/autocopy.exp root@10.0.0.33
13/tmp/autocopy.exp root@10.0.0.40
14/tmp/autocopy.exp root@10.0.0.10
15/tmp/autocopy.exp root@10.0.0.20
16/tmp/autocopy.exp root@10.0.0.50
1yum -y install expectvi /tmp/autocopy.exp
1#!/usr/bin/expect
2
3set timeout
4set user_hostname [lindex $argv ]
5set password [lindex $argv ]
6spawn ssh-copy-id $user_hostname
7 expect {
8 "(yes/no)?"
9 {
10 send "yes\n"
11 expect "*assword:" { send "$password\n"}
12 }
13 "*assword:"
14 {
15 send "$password\n"
16 }
17 }
18expect eof
1ssh-keyscan addedip >> ~/.ssh/known_hosts
2
3ssh-keygen -t rsa -P ''
4
5for i in 10.0.0.{31,32,33,40,10,20，50}; do ssh-keyscan $i >> ~/.ssh/known_hosts ; done
6
7/tmp/autocopy.exp root@addeip
8ssh-copy-id addedip
9
10/tmp/autocopy.exp root@10.0.0.31
11/tmp/autocopy.exp root@10.0.0.32
12/tmp/autocopy.exp root@10.0.0.33
13/tmp/autocopy.exp root@10.0.0.40
14/tmp/autocopy.exp root@10.0.0.10
15/tmp/autocopy.exp root@10.0.0.20
16/tmp/autocopy.exp root@10.0.0.50配置Kubespray
1pip install -r requirements.txt
2cp -rfp inventory/sample inventory/mycluster
inventory/mycluster/inventory.ini
inventory/mycluster/inventory.ini
1# ## Configure 'ip' variable to bind kubernetes services on a
2# ## different ip than the default iface
3# ## We should set etcd_member_name for etcd cluster. The node that is not a etcd member do not need to set the value, or can set the empty string value.
4[all]
5# node1 ansible_host=95.54.0.12 # ip=10.3.0.1 etcd_member_name=etcd1
6# node2 ansible_host=95.54.0.13 # ip=10.3.0.2 etcd_member_name=etcd2
7# node3 ansible_host=95.54.0.14 # ip=10.3.0.3 etcd_member_name=etcd3
8# node4 ansible_host=95.54.0.15 # ip=10.3.0.4 etcd_member_name=etcd4
9# node5 ansible_host=95.54.0.16 # ip=10.3.0.5 etcd_member_name=etcd5
10# node6 ansible_host=95.54.0.17 # ip=10.3.0.6 etcd_member_name=etcd6
11etcd1 ansible_host=10.0.0.31 etcd_member_name=etcd1
12etcd2 ansible_host=10.0.0.32 etcd_member_name=etcd2
13etcd3 ansible_host=10.0.0.33 etcd_member_name=etcd3
14master1 ansible_host=10.0.0.40
15node1 ansible_host=10.0.0.10
16node2 ansible_host=10.0.0.20
17node3 ansible_host=10.0.0.50
18
19# ## configure a bastion host if your nodes are not directly reachable
20# bastion ansible_host=x.x.x.x ansible_user=some_user
21
22[kube-master]
23# node1
24# node2
25master1
26[etcd]
27# node1
28# node2
29# node3
30etcd1
31etcd2
32etcd3
33
34[kube-node]
35# node2
36# node3
37# node4
38# node5
39# node6
40node1
41node2
42node3
43
44[k8s-cluster:children]
45kube-master
46kube-node
1pip install -r requirements.txt
2cp -rfp inventory/sample inventory/mycluster
inventory/mycluster/inventory.ini
inventory/mycluster/inventory.ini
1# ## Configure 'ip' variable to bind kubernetes services on a
2# ## different ip than the default iface
3# ## We should set etcd_member_name for etcd cluster. The node that is not a etcd member do not need to set the value, or can set the empty string value.
4[all]
5# node1 ansible_host=95.54.0.12 # ip=10.3.0.1 etcd_member_name=etcd1
6# node2 ansible_host=95.54.0.13 # ip=10.3.0.2 etcd_member_name=etcd2
7# node3 ansible_host=95.54.0.14 # ip=10.3.0.3 etcd_member_name=etcd3
8# node4 ansible_host=95.54.0.15 # ip=10.3.0.4 etcd_member_name=etcd4
9# node5 ansible_host=95.54.0.16 # ip=10.3.0.5 etcd_member_name=etcd5
10# node6 ansible_host=95.54.0.17 # ip=10.3.0.6 etcd_member_name=etcd6
11etcd1 ansible_host=10.0.0.31 etcd_member_name=etcd1
12etcd2 ansible_host=10.0.0.32 etcd_member_name=etcd2
13etcd3 ansible_host=10.0.0.33 etcd_member_name=etcd3
14master1 ansible_host=10.0.0.40
15node1 ansible_host=10.0.0.10
16node2 ansible_host=10.0.0.20
17node3 ansible_host=10.0.0.50
18
19# ## configure a bastion host if your nodes are not directly reachable
20# bastion ansible_host=x.x.x.x ansible_user=some_user
21
22[kube-master]
23# node1
24# node2
25master1
26[etcd]
27# node1
28# node2
29# node3
30etcd1
31etcd2
32etcd3
33
34[kube-node]
35# node2
36# node3
37# node4
38# node5
39# node6
40node1
41node2
42node3
43
44[k8s-cluster:children]
45kube-master
46kube-node
节点所需镜像的文件
由于某些镜像国内无法访问需要现将镜像通过代理下载到本地然后上传到本地镜像仓库或DockerHub，同时修改配置文件，个别组件存放位置https://storage.googleapis.com，需要新建Nginx服务器分发文件。
建立Nginx服务器
~/distribution/docker-compose.yml
创建文件目录及Nginx配置文件目录
~/distribution/conf.d/open_distribute.conf
启动
下载并上传所需文件 具体版本号参考roles/download/defaults/main.yml文件中kubeadm_version、kube_version、image_arch参数
安装Docker及Docker-Compose
1apt-get install \
2apt-transport-https \
3ca-certificates \
4curl \
5gnupg-agent \
6software-properties-common
7
8curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
9
10add-apt-repository \
11"deb [arch=amd64] https://download.docker.com/linux/ubuntu \
12$(lsb_release -cs) \
13stable"
14
15apt-get update
16
17apt-get install docker-ce docker-ce-cli containerd.io
18
19chmod +x /usr/local/bin/docker-compose
20sudo curl -L "https://github.com/docker/compose/releases/download/1.24.0/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
新建Nginx docker-compose.yml
1mkdir ~/distribution
2vi ~/distribution/docker-compose.yml
1# distribute
2version: '2'
3services:
4 distribute:
5 image: nginx:1.15.12
6 volumes:
7 - ./conf.d:/etc/nginx/conf.d
8 - ./distributedfiles:/usr/share/nginx/html
9 network_mode: "host"
10 container_name: nginx_distribute
1mkdir ~/distribution/distributedfiles
2mkdir ~/distribution/
3mkdir ~/distribution/conf.d
4vi ~/distribution/conf.d/open_distribute.conf
1#open_distribute.conf
2
3server {
4 #server_name distribute.search.leju.com;
5 listen 8888;
6
7 root /usr/share/nginx/html;
8
9 add_header Access-Control-Allow-Origin *;
10 add_header Access-Control-Allow-Headers X-Requested-With;
11 add_header Access-Control-Allow-Methods GET,POST,OPTIONS;
12
13 location / {
14 # index index.html;
15 autoindex on;
16 }
17 expires off;
18 location ~ .*\.(gif|jpg|jpeg|png|bmp|swf|eot|ttf|woff|woff2|svg)$ {
19 expires -1;
20 }
21
22 location ~ .*\.(js|css)?$ {
23 expires -1 ;
24 }
25} # end of public static files domain : [ distribute.search.leju.com ]
1docker-compose up -d
1wget https://storage.googleapis.com/kubernetes-release/release/v1.14.1/bin/linux/amd64/kubeadm
2
3scp /tmp/kubeadm 10.0.0.60:/root/distribution/distributedfiles
4
5wget https://storage.googleapis.com/kubernetes-release/release/v1.14.1/bin/linux/amd64/hyperkube
需要下载并上传到私有仓库的镜像
1docker pull k8s.gcr.io/cluster-proportional-autoscaler-amd64:1.4.0
2docker tag k8s.gcr.io/cluster-proportional-autoscaler-amd64:1.4.0 jiashiwen/cluster-proportional-autoscaler-amd64:1.4.0
3docker push jiashiwen/cluster-proportional-autoscaler-amd64:1.4.0
4
5docker pull k8s.gcr.io/k8s-dns-node-cache:1.15.1
6docker tag k8s.gcr.io/k8s-dns-node-cache:1.15.1 jiashiwen/k8s-dns-node-cache:1.15.1
7docker push jiashiwen/k8s-dns-node-cache:1.15.1
8
9docker pull gcr.io/google_containers/pause-amd64:3.1
10docker tag gcr.io/google_containers/pause-amd64:3.1 jiashiwen/pause-amd64:3.1
11docker push jiashiwen/pause-amd64:3.1
12
13docker pull gcr.io/google_containers/kubernetes-dashboard-amd64:v1.10.1
14docker tag gcr.io/google_containers/kubernetes-dashboard-amd64:v1.10.1 jiashiwen/kubernetes-dashboard-amd64:v1.10.1
15docker push jiashiwen/kubernetes-dashboard-amd64:v1.10.1
16
17docker pull gcr.io/google_containers/kube-apiserver:v1.14.1
18docker tag gcr.io/google_containers/kube-apiserver:v1.14.1 jiashiwen/kube-apiserver:v1.14.1
19docker push jiashiwen/kube-apiserver:v1.14.1
20
21docker pull gcr.io/google_containers/kube-controller-manager:v1.14.1
22docker tag gcr.io/google_containers/kube-controller-manager:v1.14.1 jiashiwen/kube-controller-manager:v1.14.1
23docker push jiashiwen/kube-controller-manager:v1.14.1
24
25docker pull gcr.io/google_containers/kube-scheduler:v1.14.1
26docker tag gcr.io/google_containers/kube-scheduler:v1.14.1 jiashiwen/kube-scheduler:v1.14.1
27docker push jiashiwen/kube-scheduler:v1.14.1
28
29docker pull gcr.io/google_containers/kube-proxy:v1.14.1
30docker tag gcr.io/google_containers/kube-proxy:v1.14.1 jiashiwen/kube-proxy:v1.14.1
31docker push jiashiwen/kube-proxy:v1.14.1
32
33docker pull gcr.io/google_containers/pause:3.1
34docker tag gcr.io/google_containers/pause:3.1 jiashiwen/pause:3.1
35docker push jiashiwen/pause:3.1
36
37docker pull gcr.io/google_containers/coredns:1.3.1
38docker tag gcr.io/google_containers/coredns:1.3.1 jiashiwen/coredns:1.3.1
39docker push jiashiwen/coredns:1.3.1
用于下载上传镜像的脚本
1#!/bin/bash
2
3privaterepo=jiashiwen
4
5k8sgcrimages=(
6cluster-proportional-autoscaler-amd64:1.4.0
7k8s-dns-node-cache:1.15.1
8)
9
10gcrimages=(
11pause-amd64:3.1
12kubernetes-dashboard-amd64:v1.10.1
13kube-apiserver:v1.14.1
14kube-controller-manager:v1.14.1
15kube-scheduler:v1.14.1
16kube-proxy:v1.14.1
17pause:3.1
18coredns:1.3.1
19)
20
21
22for k8sgcrimageName in ${k8sgcrimages[@]} ; do
23echo $k8sgcrimageName
24docker pull k8s.gcr.io/$k8sgcrimageName
25docker tag k8s.gcr.io/$k8sgcrimageName $privaterepo/$k8sgcrimageName
26docker push $privaterepo/$k8sgcrimageName
27done
28
29
30for gcrimageName in ${gcrimages[@]} ; do
31echo $gcrimageName
32docker pull gcr.io/google_containers/$gcrimageName
33docker tag gcr.io/google_containers/$gcrimageName $privaterepo/$gcrimageName
34docker push $privaterepo/$gcrimageName
35done
修改文件inventory/mycluster/group_vars/k8s-cluster/k8s-cluster.yml，修改K8s镜像仓库
1# kube_image_repo: "gcr.io/google-containers"
2kube_image_repo: "jiashiwen"
修改roles/download/defaults/main.yml
1#dnsautoscaler_image_repo: "k8s.gcr.io/cluster-proportional-autoscaler-{{ image_arch }}"
2dnsautoscaler_image_repo: "jiashiwen/cluster-proportional-autoscaler-{{ image_arch }}"
3
4#kube_image_repo: "gcr.io/google-containers"
5kube_image_repo: "jiashiwen"
6
7#pod_infra_image_repo: "gcr.io/google_containers/pause-{{ image_arch }}"
8pod_infra_image_repo: "jiashiwen/pause-{{ image_arch }}"
9
10#dashboard_image_repo: "gcr.io/google_containers/kubernetes-dashboard-{{ image_arch }}"
11dashboard_image_repo: "jiashiwen/kubernetes-dashboard-{{ image_arch }}"
12
13#nodelocaldns_image_repo: "k8s.gcr.io/k8s-dns-node-cache"
14nodelocaldns_image_repo: "jiashiwen/k8s-dns-node-cache"
15
16#kubeadm_download_url: "https://storage.googleapis.com/kubernetes-release/ release/{{ kubeadm_version }}/bin/linux/{{ image_arch }}/kubeadm"
17kubeadm_download_url: "http://10.0.0.60:8888/kubeadm"
18
19#hyperkube_download_url: "https://storage.googleapis.com/ kubernetes-release/release/{{ kube_version }}/bin/linux/{{ image_arch }}/ hyperkube"
20hyperkube_download_url: "http://10.0.0.60:8888/hyperkube"
由于某些镜像国内无法访问需要现将镜像通过代理下载到本地然后上传到本地镜像仓库或DockerHub，同时修改配置文件，个别组件存放位置https://storage.googleapis.com，需要新建Nginx服务器分发文件。
建立Nginx服务器
~/distribution/docker-compose.yml
创建文件目录及Nginx配置文件目录
~/distribution/conf.d/open_distribute.conf
启动
下载并上传所需文件 具体版本号参考roles/download/defaults/main.yml文件中kubeadm_version、kube_version、image_arch参数
安装Docker及Docker-Compose
1apt-get install \
2apt-transport-https \
3ca-certificates \
4curl \
5gnupg-agent \
6software-properties-common
7
8curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
9
10add-apt-repository \
11"deb [arch=amd64] https://download.docker.com/linux/ubuntu \
12$(lsb_release -cs) \
13stable"
14
15apt-get update
16
17apt-get install docker-ce docker-ce-cli containerd.io
18
19chmod +x /usr/local/bin/docker-compose
20sudo curl -L "https://github.com/docker/compose/releases/download/1.24.0/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
新建Nginx docker-compose.yml
1mkdir ~/distribution
2vi ~/distribution/docker-compose.yml
1# distribute
2version: '2'
3services:
4 distribute:
5 image: nginx:1.15.12
6 volumes:
7 - ./conf.d:/etc/nginx/conf.d
8 - ./distributedfiles:/usr/share/nginx/html
9 network_mode: "host"
10 container_name: nginx_distribute
1mkdir ~/distribution/distributedfiles
2mkdir ~/distribution/
3mkdir ~/distribution/conf.d
4vi ~/distribution/conf.d/open_distribute.conf 1#open_distribute.conf
2
3server {
4 #server_name distribute.search.leju.com;
5 listen 8888;
6
7 root /usr/share/nginx/html;
8
9 add_header Access-Control-Allow-Origin *;
10 add_header Access-Control-Allow-Headers X-Requested-With;
11 add_header Access-Control-Allow-Methods GET,POST,OPTIONS;
12
13 location / {
14 # index index.html;
15 autoindex on;
16 }
17 expires off;
18 location ~ .*\.(gif|jpg|jpeg|png|bmp|swf|eot|ttf|woff|woff2|svg)$ {
19 expires -1;
20 }
21
22 location ~ .*\.(js|css)?$ {
23 expires -1 ;
24 }
25} # end of public static files domain : [ distribute.search.leju.com ]
1docker-compose up -d1wget https://storage.googleapis.com/kubernetes-release/release/v1.14.1/bin/linux/amd64/kubeadm
2
3scp /tmp/kubeadm 10.0.0.60:/root/distribution/distributedfiles
4
5wget https://storage.googleapis.com/kubernetes-release/release/v1.14.1/bin/linux/amd64/hyperkube需要下载并上传到私有仓库的镜像
1docker pull k8s.gcr.io/cluster-proportional-autoscaler-amd64:1.4.0
2docker tag k8s.gcr.io/cluster-proportional-autoscaler-amd64:1.4.0 jiashiwen/cluster-proportional-autoscaler-amd64:1.4.0
3docker push jiashiwen/cluster-proportional-autoscaler-amd64:1.4.0
4
5docker pull k8s.gcr.io/k8s-dns-node-cache:1.15.1
6docker tag k8s.gcr.io/k8s-dns-node-cache:1.15.1 jiashiwen/k8s-dns-node-cache:1.15.1
7docker push jiashiwen/k8s-dns-node-cache:1.15.1
8
9docker pull gcr.io/google_containers/pause-amd64:3.1
10docker tag gcr.io/google_containers/pause-amd64:3.1 jiashiwen/pause-amd64:3.1
11docker push jiashiwen/pause-amd64:3.1
12
13docker pull gcr.io/google_containers/kubernetes-dashboard-amd64:v1.10.1
14docker tag gcr.io/google_containers/kubernetes-dashboard-amd64:v1.10.1 jiashiwen/kubernetes-dashboard-amd64:v1.10.1
15docker push jiashiwen/kubernetes-dashboard-amd64:v1.10.1
16
17docker pull gcr.io/google_containers/kube-apiserver:v1.14.1
18docker tag gcr.io/google_containers/kube-apiserver:v1.14.1 jiashiwen/kube-apiserver:v1.14.1
19docker push jiashiwen/kube-apiserver:v1.14.1
20
21docker pull gcr.io/google_containers/kube-controller-manager:v1.14.1
22docker tag gcr.io/google_containers/kube-controller-manager:v1.14.1 jiashiwen/kube-controller-manager:v1.14.1
23docker push jiashiwen/kube-controller-manager:v1.14.1
24
25docker pull gcr.io/google_containers/kube-scheduler:v1.14.1
26docker tag gcr.io/google_containers/kube-scheduler:v1.14.1 jiashiwen/kube-scheduler:v1.14.1
27docker push jiashiwen/kube-scheduler:v1.14.1
28
29docker pull gcr.io/google_containers/kube-proxy:v1.14.1
30docker tag gcr.io/google_containers/kube-proxy:v1.14.1 jiashiwen/kube-proxy:v1.14.1
31docker push jiashiwen/kube-proxy:v1.14.1
32
33docker pull gcr.io/google_containers/pause:3.1
34docker tag gcr.io/google_containers/pause:3.1 jiashiwen/pause:3.1
35docker push jiashiwen/pause:3.1
36
37docker pull gcr.io/google_containers/coredns:1.3.1
38docker tag gcr.io/google_containers/coredns:1.3.1 jiashiwen/coredns:1.3.1
39docker push jiashiwen/coredns:1.3.1
用于下载上传镜像的脚本
1#!/bin/bash
2
3privaterepo=jiashiwen
4
5k8sgcrimages=(
6cluster-proportional-autoscaler-amd64:1.4.0
7k8s-dns-node-cache:1.15.1
8)
9
10gcrimages=(
11pause-amd64:3.1
12kubernetes-dashboard-amd64:v1.10.1
13kube-apiserver:v1.14.1
14kube-controller-manager:v1.14.1
15kube-scheduler:v1.14.1
16kube-proxy:v1.14.1
17pause:3.1
18coredns:1.3.1
19)
20
21
22for k8sgcrimageName in ${k8sgcrimages[@]} ; do
23echo $k8sgcrimageName
24docker pull k8s.gcr.io/$k8sgcrimageName
25docker tag k8s.gcr.io/$k8sgcrimageName $privaterepo/$k8sgcrimageName
26docker push $privaterepo/$k8sgcrimageName
27done
28
29
30for gcrimageName in ${gcrimages[@]} ; do
31echo $gcrimageName
32docker pull gcr.io/google_containers/$gcrimageName
33docker tag gcr.io/google_containers/$gcrimageName $privaterepo/$gcrimageName
34docker push $privaterepo/$gcrimageName
35done
修改文件inventory/mycluster/group_vars/k8s-cluster/k8s-cluster.yml，修改K8s镜像仓库
1# kube_image_repo: "gcr.io/google-containers"
2kube_image_repo: "jiashiwen"
修改roles/download/defaults/main.yml
1#dnsautoscaler_image_repo: "k8s.gcr.io/cluster-proportional-autoscaler-{{ image_arch }}"
2dnsautoscaler_image_repo: "jiashiwen/cluster-proportional-autoscaler-{{ image_arch }}"
3
4#kube_image_repo: "gcr.io/google-containers"
5kube_image_repo: "jiashiwen"
6
7#pod_infra_image_repo: "gcr.io/google_containers/pause-{{ image_arch }}"
8pod_infra_image_repo: "jiashiwen/pause-{{ image_arch }}"
9
10#dashboard_image_repo: "gcr.io/google_containers/kubernetes-dashboard-{{ image_arch }}"
11dashboard_image_repo: "jiashiwen/kubernetes-dashboard-{{ image_arch }}"
12
13#nodelocaldns_image_repo: "k8s.gcr.io/k8s-dns-node-cache"
14nodelocaldns_image_repo: "jiashiwen/k8s-dns-node-cache"
15
16#kubeadm_download_url: "https://storage.googleapis.com/kubernetes-release/ release/{{ kubeadm_version }}/bin/linux/{{ image_arch }}/kubeadm"
17kubeadm_download_url: "http://10.0.0.60:8888/kubeadm"
18
19#hyperkube_download_url: "https://storage.googleapis.com/ kubernetes-release/release/{{ kube_version }}/bin/linux/{{ image_arch }}/ hyperkube"
20hyperkube_download_url: "http://10.0.0.60:8888/hyperkube"
三、执行安装
安装命令
1ansible-playbook -i inventory/mycluster/inventory.ini cluster.yml
重置命令
1ansible-playbook -i inventory/mycluster/inventory.ini reset.yml
安装命令
1ansible-playbook -i inventory/mycluster/inventory.ini cluster.yml
重置命令
1ansible-playbook -i inventory/mycluster/inventory.ini reset.yml
四、验证K8s集群
安装Kubectl
本地浏览器打开https://storage.googleapis.com/kubernetes-release/release/stable.txt得到最新版本为v1.14.1
用上一步得到的最新版本号v1.7.1替换下载地址中的$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)得到真正的下载地址https:// storage.googleapis.com/kubernetes-release/release/v1.14.1/bin/linux/amd64/kubectl
上传下载好的kubectl
1scp /tmp/kubectl root@xxx:/root
修改属性
1chmod +x ./kubectl
2mv ./kubectl /usr/local/bin/kubectl
Ubuntu
1sudo snap install kubectl --classic
CentOS
将master节点上的~/.kube/config 文件复制到你需要访问集群的客户端上即可
1scp 10.0.0.40:/root/.kube/config ~/.kube/config
执行命令验证集群
1kubectl get nodes
2kubectl cluster-info
安装Kubectl
本地浏览器打开https://storage.googleapis.com/kubernetes-release/release/stable.txt得到最新版本为v1.14.1
用上一步得到的最新版本号v1.7.1替换下载地址中的$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)得到真正的下载地址https:// storage.googleapis.com/kubernetes-release/release/v1.14.1/bin/linux/amd64/kubectl
上传下载好的kubectl
1scp /tmp/kubectl root@xxx:/root
修改属性
1chmod +x ./kubectl
2mv ./kubectl /usr/local/bin/kubectl
Ubuntu
1sudo snap install kubectl --classic
CentOS
将master节点上的~/.kube/config 文件复制到你需要访问集群的客户端上即可
1scp 10.0.0.40:/root/.kube/config ~/.kube/config
执行命令验证集群
1kubectl get nodes
2kubectl cluster-info
五、TiDB-Operaor部署
安装helm
https://blog.csdn.net/bbwangj/article/details/81087911
安装helm
1curl https://raw.githubusercontent.com/helm/helm/master/scripts/get > get_helm.sh
2chmod 700 get_helm.sh
3./get_helm.sh
查看helm版本
1helm version
初始化
1helm init --upgrade -i registry.cn-hangzhou.aliyuncs.com/google_containers/tiller:v2.13.1 --stable-repo-url https://kubernetes.oss-cn-hangzhou.aliyuncs.com/charts
https://blog.csdn.net/bbwangj/article/details/81087911
安装helm
1curl https://raw.githubusercontent.com/helm/helm/master/scripts/get > get_helm.sh
2chmod 700 get_helm.sh
3./get_helm.sh
查看helm版本
1helm version
初始化
1helm init --upgrade -i registry.cn-hangzhou.aliyuncs.com/google_containers/tiller:v2.13.1 --stable-repo-url https://kubernetes.oss-cn-hangzhou.aliyuncs.com/charts
为K8s提供 local volumes
参考文档https://github.com/kubernetes-sigs/sig-storage-local-static-provisioner/blob/master/docs/operations.md
tidb-operator启动会为pd和tikv绑定pv，需要在discovery directory下创建多个目录
格式化并挂载磁盘
1mkfs.ext4 /dev/vdb
2DISK_UUID=$(blkid -s UUID -o value /dev/vdb)
3mkdir /mnt/$DISK_UUID
4mount -t ext4 /dev/vdb /mnt/$DISK_UUID
/etc/fstab持久化mount
1echo UUID=`sudo blkid -s UUID -o value /dev/vdb` /mnt/$DISK_UUID ext4 defaults 0 2 | sudo tee -a /etc/fstab
创建多个目录并mount到discovery directory
1for i in $(seq 1 10); do
2sudo mkdir -p /mnt/${DISK_UUID}/vol${i} /mnt/disks/${DISK_UUID}_vol${i}
3sudo mount --bind /mnt/${DISK_UUID}/vol${i} /mnt/disks/${DISK_UUID}_vol${i}
4done
/etc/fstab持久化mount
1for i in $(seq 1 10); do
2echo /mnt/${DISK_UUID}/vol${i} /mnt/disks/${DISK_UUID}_vol${i} none bind 0 0 | sudo tee -a /etc/fstab
3done
为tidb-operator创建local-volume-provisioner
1$ kubectl apply -f https://raw.githubusercontent.com/pingcap/tidb-operator/master/manifests/local-dind/local-volume-provisioner.yaml
2$ kubectl get po -n kube-system -l app=local-volume-provisioner
3$ kubectl get pv --all-namespaces | grep local-storage
参考文档https://github.com/kubernetes-sigs/sig-storage-local-static-provisioner/blob/master/docs/operations.md
tidb-operator启动会为pd和tikv绑定pv，需要在discovery directory下创建多个目录格式化并挂载磁盘
1mkfs.ext4 /dev/vdb
2DISK_UUID=$(blkid -s UUID -o value /dev/vdb)
3mkdir /mnt/$DISK_UUID
4mount -t ext4 /dev/vdb /mnt/$DISK_UUID
/etc/fstab持久化mount
1echo UUID=`sudo blkid -s UUID -o value /dev/vdb` /mnt/$DISK_UUID ext4 defaults 0 2 | sudo tee -a /etc/fstab
创建多个目录并mount到discovery directory
1for i in $(seq 1 10); do
2sudo mkdir -p /mnt/${DISK_UUID}/vol${i} /mnt/disks/${DISK_UUID}_vol${i}
3sudo mount --bind /mnt/${DISK_UUID}/vol${i} /mnt/disks/${DISK_UUID}_vol${i}
4done
/etc/fstab持久化mount
1for i in $(seq 1 10); do
2echo /mnt/${DISK_UUID}/vol${i} /mnt/disks/${DISK_UUID}_vol${i} none bind 0 0 | sudo tee -a /etc/fstab
3done
为tidb-operator创建local-volume-provisioner
1$ kubectl apply -f https://raw.githubusercontent.com/pingcap/tidb-operator/master/manifests/local-dind/local-volume-provisioner.yaml
2$ kubectl get po -n kube-system -l app=local-volume-provisioner
3$ kubectl get pv --all-namespaces | grep local-storage
六、Install TiDB Operator
项目中使用了gcr.io/google-containers/hyperkube，国内访问不了，简单的办法是把镜像重新push到dockerhub然后修改charts/tidb-operator/values.yaml
1scheduler:
2 # With rbac.create=false, the user is responsible for creating this account
3 # With rbac.create=true, this service account will be created
4 # Also see rbac.create and clusterScoped
5 serviceAccount: tidb-scheduler
6 logLevel: 2
7 replicas: 1
8 schedulerName: tidb-scheduler
9 resources:
10 limits:
11 cpu: 250m
12 memory: 150Mi
13 requests:
14 cpu: 80m
15 memory: 50Mi
16 # kubeSchedulerImageName: gcr.io/google-containers/hyperkube
17 kubeSchedulerImageName: yourrepo/hyperkube
18 # This will default to matching your kubernetes version
19 # kubeSchedulerImageTag: latest
TiDB Operator使用CRD扩展Kubernetes，因此要使用TiDB Operator，首先应该创建TidbCluster自定义资源类型。
1kubectl apply -f https://raw.githubusercontent.com/pingcap/tidb-operator/master/manifests/crd.yaml
2kubectl get crd tidbclusters.pingcap.com
安装TiDB-Operator
1$ git clone https://github.com/pingcap/tidb-operator.git
2$ cd tidb-operator
3$ helm install charts/tidb-operator --name=tidb-operator --namespace=tidb-admin
4$ kubectl get pods --namespace tidb-admin -l app.kubernetes.io/ instance=tidb-operator
项目中使用了gcr.io/google-containers/hyperkube，国内访问不了，简单的办法是把镜像重新push到dockerhub然后修改charts/tidb-operator/values.yaml
1scheduler:
2 # With rbac.create=false, the user is responsible for creating this account
3 # With rbac.create=true, this service account will be created
4 # Also see rbac.create and clusterScoped
5 serviceAccount: tidb-scheduler
6 logLevel: 2
7 replicas: 1
8 schedulerName: tidb-scheduler
9 resources:
10 limits:
11 cpu: 250m
12 memory: 150Mi
13 requests:
14 cpu: 80m
15 memory: 50Mi
16 # kubeSchedulerImageName: gcr.io/google-containers/hyperkube
17 kubeSchedulerImageName: yourrepo/hyperkube
18 # This will default to matching your kubernetes version
19 # kubeSchedulerImageTag: latest
TiDB Operator使用CRD扩展Kubernetes，因此要使用TiDB Operator，首先应该创建TidbCluster自定义资源类型。
1kubectl apply -f https://raw.githubusercontent.com/pingcap/tidb-operator/master/manifests/crd.yaml
2kubectl get crd tidbclusters.pingcap.com
安装TiDB-Operator
1$ git clone https://github.com/pingcap/tidb-operator.git
2$ cd tidb-operator
3$ helm install charts/tidb-operator --name=tidb-operator --namespace=tidb-admin
4$ kubectl get pods --namespace tidb-admin -l app.kubernetes.io/ instance=tidb-operator
七、部署TiDB
1helm install charts/tidb-cluster --name=demo --namespace=tidb
2watch kubectl get pods --namespace tidb -l app.kubernetes.io/instance=demo -o wide
1helm install charts/tidb-cluster --name=demo --namespace=tidb
2watch kubectl get pods --namespace tidb -l app.kubernetes.io/instance=demo -o wide
八、验证
安装MySQL客户端
参考文档https://dev.mysql.com/doc/refman/8.0/en/linux-installation.html
CentOS安装
1wget https://dev.mysql.com/get/mysql80-community-release-el7-3.noarch.rpm
2yum localinstall mysql80-community-release-el7-3.noarch.rpm -y
3yum repolist all | grep mysql
4yum-config-manager --disable mysql80-community
5yum-config-manager --enable mysql57-community
6yum install mysql-community-client
Ubuntu安装
1wget https://dev.mysql.com/get/mysql-apt-config_0.8.13-1_all.deb
2dpkg -i mysql-apt-config_0.8.13-1_all.deb
3apt update
4
5# 选择MySQL版本
6dpkg-reconfigure mysql-apt-config
7apt install mysql-client -y
参考文档https://dev.mysql.com/doc/refman/8.0/en/linux-installation.html
CentOS安装
1wget https://dev.mysql.com/get/mysql80-community-release-el7-3.noarch.rpm
2yum localinstall mysql80-community-release-el7-3.noarch.rpm -y
3yum repolist all | grep mysql
4yum-config-manager --disable mysql80-community
5yum-config-manager --enable mysql57-community
6yum install mysql-community-client
Ubuntu安装
1wget https://dev.mysql.com/get/mysql-apt-config_0.8.13-1_all.deb
2dpkg -i mysql-apt-config_0.8.13-1_all.deb
3apt update
4
5# 选择MySQL版本
6dpkg-reconfigure mysql-apt-config
7apt install mysql-client -y
九、映射TiDB端口
查看TiDB Service
1kubectl get svc --all-namespaces
映射TiDB端口
1# 仅本地访问
2kubectl port-forward svc/demo-tidb 4000:4000 --namespace=tidb
3
4# 其他主机访问
5kubectl port-forward --address 0.0.0.0 svc/demo-tidb 4000:4000 --namespace=tidb
首次登录MySQL
1mysql -h 127.0.0.1 -P 4000 -u root -D test
修改TiDB密码
1SET PASSWORD FOR 'root'@'%' = 'wD3cLpyO5M'; FLUSH PRIVILEGES;
趟坑小记 1、K8s国内安装
K8s镜像多在gcr.io国内访问不到，基本做法是把镜像导入DockerHub或者私有镜像，这一点在K8s部署章节有详细过程就不累述了。
2、TiDB-Operator 本地存储配置
Operator在启动集群时pd和TiKV需要绑定本地存储如果挂载点不足会导致pod启动过程中找不到可已bond的pv始终处于pending或createing状态，详细配请参阅https://github.com/kubernetes-sigs/sig-storage-local-static-provisioner/blob/master/docs/operations.md中“Sharing a disk filesystem by multiple filesystem PVs”一节，同一块磁盘绑定多个挂载目录，为Operator提供足够的bond
3、MySQL客户端版本问题
目前TiDB只支持MySQL5.7版本客户端8.0会报ERROR 1105 (HY000): Unknown charset id 255
查看TiDB Service
1kubectl get svc --all-namespaces
映射TiDB端口
1# 仅本地访问
2kubectl port-forward svc/demo-tidb 4000:4000 --namespace=tidb
3
4# 其他主机访问
5kubectl port-forward --address 0.0.0.0 svc/demo-tidb 4000:4000 --namespace=tidb
首次登录MySQL
1mysql -h 127.0.0.1 -P 4000 -u root -D test
修改TiDB密码
1SET PASSWORD FOR 'root'@'%' = 'wD3cLpyO5M'; FLUSH PRIVILEGES;
1、K8s国内安装
K8s镜像多在gcr.io国内访问不到，基本做法是把镜像导入DockerHub或者私有镜像，这一点在K8s部署章节有详细过程就不累述了。
2、TiDB-Operator 本地存储配置
Operator在启动集群时pd和TiKV需要绑定本地存储如果挂载点不足会导致pod启动过程中找不到可已bond的pv始终处于pending或createing状态，详细配请参阅https://github.com/kubernetes-sigs/sig-storage-local-static-provisioner/blob/master/docs/operations.md中“Sharing a disk filesystem by multiple filesystem PVs”一节，同一块磁盘绑定多个挂载目录，为Operator提供足够的bond
3、MySQL客户端版本问题
目前TiDB只支持MySQL5.7版本客户端8.0会报ERROR 1105 (HY000): Unknown charset id 255
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