linux12k8s --＞ 15discuz+mysql主从
文章目录
-
-
- 一、部署discuz
-
- 二、DOckerfile部署主从复制
- 三、部署MySQL主从复制
-
- 1.准备Discuz包
- 2.构建镜像
-
- 1）构建Discuz的php镜像
- 2）构建Discuz的nginx镜像
- 3）构建MySQL的主从镜像
- 1> 主库
- 2> 从库
- 3.准备环境
- 4.部署nfs动态存储
- 5.删除所有pv、pvc
- 6.准备配置清单
-
- 1）mysql-storage.yaml
- 2）mysql-deployment.yaml
- 3）discuz-namespace.yaml
- 4）4-discuz-storage.yaml
- 5）discuz-configmap
- 6）discuz-deployment.yaml
- 7.复制nginx配置
- 8.部署服务
- 9.新版本自动创建pv的权限问题
- 四、discuz主从搭建完成
-
一、部署discuz
- 要求：使用StorageClass、configmap、secret、https、探针
- 规划
1、构建镜像
alvinos/nginx:discuz-v1
alvinos/php:discuz-v2
mysql:5.7
2、设置网络
ingress ---> svc ---> pod ---> mysql svc ---> mysql pod
3、编写配置清单
1、mysql
1、mysql命名空间
2、mysql存储
3、MySQL应用
4、备份
2、discuz
1、discuz命名空间
2、存储
3、应用（服务和svc）
4、访问测试
二、DOckerfile部署主从复制
# 1、启动主库，启动从库（必须同一个网桥）
# 2、在主库中创建主从复制账号
# 3、将从库加入集群
# 1、创建统一目录
[root@k8s-m-01 devops]# mkdir devops
[root@k8s-m-01 devops]# cd devops
# 2、准备主备配置文件
[root@k8s-m-01 devops]# vim mysql-master.cnf
[mysqld]
datadir=/var/lib/mysql
server-id=1 # ID不同
binlog_format=row
log-bin=mysql-bin
skip-name-resolve
gtid-mode=on
enforce-gtid-consistency=true
log-slave-updates=1
relay_log_purge=0
symbolic-links=0
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
[mysqld_safe]
log-error=/var/log/mysqld.log
# 3、准备 从节点
[root@k8s-m-01 devops]# vim mysql-node.cnf
[mysqld]
datadir=/var/lib/mysql
server-id=2 # ID不同
binlog_format=row
log-bin=mysql-bin
skip-name-resolve
gtid-mode=on
enforce-gtid-consistency=true
log-slave-updates=1
relay_log_purge=0
symbolic-links=0
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
[mysqld_safe]
log-error=/var/log/mysqld.log
# 4、创建网桥
[root@k8s-m-01 devops]# docker network create mm
789d90b65dfda342471035f3110175140162d9bd0aec8de6c765634bebcbc546
[root@k8s-m-01 devops]# docker network ls
NETWORK ID NAME DRIVER SCOPE
30bda6313154 bridge bridge local
e97dc4abf036 host host local
789d90b65dfd mm bridge local
894fc1c5a6a2 none null local
# 5、查看文件
[root@k8s-m-01 devops]# ll
total 8
-rw-r--r-- 1 root root 292 Aug 11 19:32 mysql-master.cnf
-rw-r--r-- 1 root root 292 Aug 11 19:36 mysql-node.cnf
# 6、开启主从库
[root@k8s-m-01 devops]# docker run -d --name mysql-master-01 -p 3306:3306 --network=mm -e MYSQL_ROOT_PASSWORD=123 -v /root/devops/mysql-master.cnf:/etc/mysql/my.cnf mysql:5.7
[root@k8s-m-01 devops]# docker run -d --name mysql-node-01 --network=mm -e MYSQL_ROOT_PASSWORD=123 -v /root/devops/mysql-node.cnf:/etc/mysql/my.cnf mysql:5.7
# 7、查看服务
[root@k8s-m-01 devops]# docker ps |grep 5.7
6f4014374011 mysql:5.7 "docker-entrypoint.s…" About a minute ago Up About a minute 3306/tcp, 33060/tcp mysql-node-01
43b2c840a0da mysql:5.7 "docker-entrypoint.s…" About a minute ago Up About a minute 0.0.0.0:3306->3306/tcp, :::3306->3306/tcp, 33060/tcp mysql-master-01
# 7、在主库中创建主从复制账号
[root@k8s-m-01 devops]# docker exec -it mysql-master-01 bash
root@43b2c840a0da:/# mysql -uroot -p123 -hmysql-master-01
# 主库上执行
mysql> grant replication slave on *.* to 'slave'@'%' identified by '123';
mysql> flush privileges;
mysql> show master status;
+------------------+----------+--------------+------------------+------------------------------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+------------------------------------------+
| mysql-bin.000003 | 622 | | | ed757e7a-fa98-11eb-b088-0242ac120002:1-7 |
+------------------+----------+--------------+------------------+------------------------------------------+
# 8、进入从主数据库查看
[root@k8s-m-01 devops]# docker exec -it mysql-node-01 bash
root@6f4014374011:/# mysql -uroot -p123 -h mysql-node-01
# 在从库中执行, 加入主节点
mysql> change master to master_host='mysql-master-01',master_port=3306,master_user='slave',master_password='123',master_log_file='mysql-bin.000003',master_log_pos=622;
# 查看主从复制状态
mysql> show slave status\G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: mysql-master-01
Master_User: slave
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000003
Read_Master_Log_Pos: 622
Relay_Log_File: 6f4014374011-relay-bin.000002
Relay_Log_Pos: 320
Relay_Master_Log_File: mysql-bin.000003
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
三、部署MySQL主从复制
官网： https://hub.docker.com/repositories
- 要求：一主多从，多个从节点可以任意添加
部署Discuz论坛+MySQL主从复制
1.准备Discuz包
1.下载discuz包
[root@k8s-m-01 discuz]# wget http://www.mmin.xyz:81/package/blog/Discuz_X3.4_SC_UTF8_20210320.zip
2.解压 # 此包默认是zip格式，无需改名
[root@k8s-m-01 discuz]# unzip Discuz_X3.4_SC_UTF8_20210320.zip
3.授权可写、压缩 # 打包后续备用
[root@k8s-m-01 discuz]# chmod -R 777 upload/
4创建站点目录
[root@k8s-m-01 discuz]# mkdir nginx
[root@k8s-m-01 discuz]# mkdir php
[root@k8s-m-01 discuz]# cp -rp upload/ nginx/
[root@k8s-m-01 discuz]# cp -rp upload/ php
[root@k8s-m-01 discuz]# ll
total 4
drwxr-xr-x 2 root root 272 Aug 11 20:45 nginx
drwxr-xr-x 2 root root 6 Aug 11 20:45 php
drwxrwxrwx 13 root root 4096 Mar 22 19:44 upload
2.构建镜像
- 构建并上传，无需打包可直接上传（官方镜像）
1）构建Discuz的php镜像
# 编写Dockerfile
[root@k8s-m-01 ~]# cd /root/discuz/php
[root@k8s-m-01 ~]# cat > Dockerfile <2）构建Discuz的nginx镜像
# 编写Dockerfile
[root@k8s-m-01 php]# cd /root/discuz/nginx
[root@k8s-m-01 nginx]# cat > Dockerfile <3）构建MySQL的主从镜像
- 创建镜像仓库：在阿里云镜像仓库中创建mysql-master和mysql-savle两个仓库
- 创建主从构建目录
[root@k8s-m-01 ~]# mkdir -pv /Project/mysql/{master,slave}
1> 主库
[root@k8s-m-01 ~]# cd /Project/mysql/master
# 编写Dockerfile
[root@k8s-m-01 master]# vim Dockerfile
FROM mysql:5.7
ADD my.cnf /etc/mysql/my.cnf
# 配置mysql配置文件
[root@k8s-m-01 master]# vim my.cnf
[mysql]
socket=/var/lib/mysql/mysql.sock
[mysqld]
user=mysql
port=3306
binlog_format=mixed
log_bin=mysql-bin
socket=/var/lib/mysql/mysql.sock
server_id=1
sync_binlog=1
log-slave-updates=on
# 构建master镜像
[root@k8s-m-01 master]# docker build -t registry.cn-hangzhou.aliyuncs.com/slave/mysql/mysql-master:v1 .
# 登录仓库
[root@k8s-m-01 master]# docker login --username=zzp247364 registry.cn-hangzhou.aliyuncs.com
# 推送
[root@k8s-m-01 master]# docker push registry.cn-hangzhou.aliyuncs.com/slave/mysql/mysql-master:v1
2> 从库
[root@k8s-m-01 ~]# cd /Project/mysql/slave
# 编写Dockerfile
[root@k8s-m-01 slave]# vim Dockerfile
FROM mysql:5.7
ADD my.cnf /etc/mysql/my.cnf
# 配置mysql配置文件
[root@k8s-m-01 slave]# vim my.cnf
[mysql]
socket=/var/lib/mysql/mysql.sock
[mysqld]
user=mysql
port=3306
binlog_format=mixed
log_bin=mysql-bin
socket=/var/lib/mysql/mysql.sock
server_id=2
read-only=1
# 构建salve镜像
[root@k8s-m-01 slave]# docker push registry.cn-hangzhou.aliyuncs.com/slave/mysql/mysql-slave:v1
# 推送
[root@k8s-m-01 slave]# docker push registry.cn-hangzhou.aliyuncs.com/slave/mysql/mysql-slave:v1
3.准备环境
- 清空集群，准备纯净环境
- 依次部署基础容器：flannel.yaml、deploy.yaml、ingress-nginx.yaml
[root@k8s-m-01 ~]# kubectl apply -f flannel.yaml
[root@k8s-m-01 ~]# kubectl apply -f deploy.yaml
[root@k8s-m-01 ~]# kubectl apply -f ingress-nginx.yaml
4.部署nfs动态存储
# 官网参考链接：https://github.com/helm/helm
1.安装helm # helm(helm相当于kubernetes中的yum)
[root@k8s-m-01 ~]# wget https://get.helm.sh/helm-v3.5.3-linux-amd64.tar.gz
[root@k8s-m-01 ~]# tar -xf helm-v3.3.4-linux-amd64.tar.gz
[root@k8s-m-01 ~]# cd linux-amd64/
[root@k8s-m-01 ~]# for i in m1 m2 m3;do scp helm root@$i:/usr/local/bin/; done
# 测试安装， 出现参数即为出轨
[root@k8s-m-01 ~]# helm
The Kubernetes package manager
Common actions for Helm:
- helm search: search for charts
- helm pull: download a chart to your local directory to view
- helm install: upload the chart to Kubernetes
- helm list: list releases of charts
2.安装存储类
## 安装一个helm的存储库
[root@k8s-m-01 ~]# helm repo add ckotzbauer https://ckotzbauer.github.io/helm-charts
"ckotzbauer" has been added to your repositories
[root@k8s-m-01 ~]# helm repo list
NAME URL
ckotzbauer https://ckotzbauer.github.io/helm-charts
# 方式1> ：部署nfs客户端及存储类
[root@k8s-m-01 ~]# helm install nfs-client --set nfs.server=172.16.1.51 --set nfs.path=/nfs/v6 ckotzbauer/nfs-client-provisioner
NAME: nfs-client
LAST DEPLOYED: Fri Apr 9 09:33:23 2021
NAMESPACE: default
STATUS: deployed
REVISION: 1
TEST SUITE: None
## 查看部署结果
[root@k8s-m-01 ~]# kubectl get pods
NAME READY STATUS RESTARTS AGE
nfs-client-nfs-client-provisioner-56dddf479f-h9qqb 1/1 Running 0 41s
[root@k8s-m-01 ~]# kubectl get storageclasses.storage.k8s.io
NAME PROVISIONER RECLAIMPOLICY VOLUMEBINDINGMODE ALLOWVOLUMEEXPANSION AGE
nfs-client cluster.local/nfs-client-nfs-client-provisioner Delete Immediate true 61s
# 方式2> ：直接使用配置清单(推荐)
accessModes: ReadWriteMany
### 下载包
[root@k8s-m-01 ~]# helm pull ckotzbauer/nfs-client-provisioner
### 解压
[root@k8s-m-01 ~]# tar -xf nfs-client-provisioner-1.0.2.tgz
### 修改values.yaml
[root@k8s-m-01 ~]# cd nfs-client-provisioner/
# 所需修改项为如下：
[root@k8s-m-01 /opt/nfs-client-provisioner]# vim values.yaml
nfs:
server: 192.168.12.11
path: /nfs/v6
reclaimPolicy: Retain
accessModes: ReadWriteMany
5.删除所有pv、pvc
# 查看当前pvc
[root@k8s-m-01 ~]# kubectl get pvc
No resources found in default namespace.
# 过滤查看pv
[root@k8s-m-01 ~]# kubectl get pv | awk '{print $1}'
NAME
pvc-406c3f25-f857-491a-b8b9-a79f7b3262ac
pvc-7b1083e7-58e1-4984-b61c-f130d332a26f
pvc-d6ed3bd3-4a1a-4032-aec3-909d4a2aca3f
# 清空pv
[root@k8s-m-01 ~]# kubectl get pv | awk '{print $1}' | xargs -I {} kubectl delete pv {}
Error from server (NotFound): persistentvolumes "NAME" not found
persistentvolume "pvc-406c3f25-f857-491a-b8b9-a79f7b3262ac" deleted
persistentvolume "pvc-7b1083e7-58e1-4984-b61c-f130d332a26f" deleted
persistentvolume "pvc-d6ed3bd3-4a1a-4032-aec3-909d4a2aca3f" deleted
# 已清空pv
[root@k8s-m-01 ~]# kubectl get pv
No resources found
# 清空/nfs/v3/*
[root@k8s-m-01 ~]# rm -rf /nfs/v3/*
6.准备配置清单
- discuz需准备的配置清单
- 按顺序依次准备、启动
[root@k8s-m-01 discuz-store-mysql]# ll
total 32
-rw-r--r-- 1 root root 364 Apr 12 19:15 1-mysql-storage.yaml
-rw-r--r-- 1 root root 1927 Apr 13 20:22 2-mysql-deployment.yaml
-rw-r--r-- 1 root root 115 Apr 13 21:23 3-discuz-namespace.yaml
-rw-r--r-- 1 root root 440 Apr 12 23:02 4-discuz-storage.yaml
-rw-r--r-- 1 root root 531 Apr 13 22:32 5-discuz-configmap.yaml
-rw-r--r-- 1 root root 3527 Apr 13 23:42 6-discuz-deployment.yaml
1）mysql-storage.yaml
- 创建mysql的storage
cat > 1-mysql-storage.yaml 2）mysql-deployment.yaml
- 定义discuz命名空间、服务
cat > 2-mysql-deployment.yaml <3）discuz-namespace.yaml
- discuz命名空间，独立出来，防止误删除
cat > 3-discuz-namespace.yaml <4）4-discuz-storage.yaml
- 单独创建的discuz的pv
cat > 4-deployment-storage.yaml <5）discuz-configmap
- ConfigMap && Secret 是 K8S 中的针对应用的配置中心
- 在 创建容器时，用户可以将应用程序打包为容器镜像后，通过环境变量或者外接挂载文件的方式进行配置注入。
- 它有效的解决了应用挂载的问题，并且支持加密以及热 更新等功能
cat 5-discuz-configmap.yaml
kind: ConfigMap
apiVersion: v1
metadata:
namespace: discuz
name: discuz-configmap
data:
default.conf: |
server {
listen 80;
server_name linux.discuz.com;
root /opt/upload/;
location / {
index index.php;
}
location ~* \.php$ {
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root/$fastcgi_script_name;
include fastcgi_params;
}
}
EOF
6）discuz-deployment.yaml
- 部署Discuz
cat > 6-discuz-deployment.yaml <7.复制nginx配置
# 运行刚刚构建的nginx镜像，复制其nginx配置到配置清单
[root@k8s-m-01 nginx]# docker run --rm -it 18954354671/lnmp-nginx-discuz:v2 bash
root@dcadb97a6799:/usr/share/nginx/html# cat /etc/nginx/conf.d/linux.wp.com.conf
server {
listen 80;
server_name linux.discuz.com;
root /opt/upload/;
location / {
index index.php;
}
location ~* \.php$ {
fastcgi_pass 127.0.0.1:9000;
fastcgi_param SCRIPT_FILENAME $document_root/$fastcgi_script_name;
include fastcgi_params;
}
}
8.部署服务
kubectl apply -f 1-mysql-storage.yaml
kubectl apply -f 2-mysql-deployment.yaml
kubectl apply -f 3-discuz-namespace.yaml
kubectl apply -f 4-discuz-storage.yaml
kubectl apply -f 5-discuz-configmap.yaml
kubectl apply -f 6-discuz-deployment.yaml
9.新版本自动创建pv的权限问题
- 加入此条参数即可
[root@k8s-m-01 ~]# vim /etc/kubernetes/manifests/kube-apiserver.yaml
- --feature-gates=RemoveSelfLink=false
# 重新部署即可~
[root@k8s-m-01 ~]# kubectl apply -f /etc/kubernetes/manifests/kube-apiserver.yaml
四、discuz主从搭建完成
# 1、准备文件
# 2、先执行namespace.yaml
# 3、最后在执行*.yaml
# 4、访问
[root@k8s-m-01 discuz]# cat config.yaml
apiVersion: v1
kind: ConfigMap
metadata:
name: master-my-cnf
namespace: mysql-master
data:
master-my-conf: |
[mysqld]
datadir=/var/lib/mysql
server-id=1
binlog_format=row
log-bin=mysql-bin
skip-name-resolve
gtid-mode=on
enforce-gtid-consistency=true
log-slave-updates=1
relay_log_purge=0
symbolic-links=0
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
[mysqld_safe]
log-error=/var/log/mysqld.log
---
apiVersion: v1
kind: ConfigMap
metadata:
name: node-my-cnf
namespace: mysql-node
data:
node-my-cnf: |
[mysqld]
datadir=/var/lib/mysql
server-id=2
binlog_format=row
log-bin=mysql-bin
skip-name-resolve
gtid-mode=on
enforce-gtid-consistency=true
log-slave-updates=1
relay_log_purge=0
symbolic-links=0
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
relay-log=mysql-relay-bin
replicate-wild-ignore-table=mysql.%
replicate-wild-ignore-table=test.%
replicate-wild-ignore-table=information_schema.%
replicate-wild-ignore-table=sys.%
[mysqld_safe]
log-error=/var/log/mysqld.log
---
apiVersion: v1
kind: ConfigMap
metadata:
name: nginx
namespace: discuz
data:
nginx.conf: |
user root;
worker_processes auto;
worker_cpu_affinity auto;
error_log /var/log/nginx/error.log notice;
pid /var/run/nginx.pid;
worker_rlimit_nofile 35535;
events {
use epoll;
worker_connections 10240;
}
http {
include /etc/nginx/mime.types;
default_type application/octet-stream;
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
log_format json_access '{"@timestamp":"$time_iso8601",'
'"host":"$server_addr",'
'"clientip":"$remote_addr",'
'"size":$body_bytes_sent,'
'"responsetime":$request_time,'
'"upstreamtime":"$upstream_response_time",'
'"upstreamhost":"$upstream_addr",'
'"http_host":"$host",'
'"url":"$uri",'
'"domain":"$host",'
'"xff":"$http_x_forwarded_for",'
'"referer":"$http_referer",'
'"status":"$status"}';
access_log /var/log/nginx/access.log json_access;
server_tokens off;
client_max_body_size 200m;
sendfile on;
tcp_nopush on;
keepalive_timeout 65;
gzip on;
gzip_disable "MSIE [1-6]\.";
gzip_http_version 1.1;
gzip_comp_level 2;
gzip_buffers 16 8k;
gzip_min_length 1024;
gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript image/jpeg;
include /etc/nginx/conf.d/*.conf;
}
default.conf: |
server {
listen 80;
server_name _;
root /usr/share/nginx/html;
location / {
index index.php;
}
location ~* \.php$ {
fastcgi_pass 127.0.0.1:9000;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_param HTTPS ON;
include fastcgi_params;
}
}
[root@k8s-m-01 discuz]# cat discuz.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: discuz
namespace: discuz
spec:
selector:
matchLabels:
app: discuz
template:
metadata:
labels:
app: discuz
spec:
containers:
- name: php
image: registry.cn-shanghai.aliyuncs.com/aliyun_mm/discuz:php-v2
imagePullPolicy: IfNotPresent
volumeMounts:
- mountPath: /usr/share/nginx/html
name: discuz
- name: nginx
image: nginx
imagePullPolicy: IfNotPresent
volumeMounts:
- mountPath: /usr/share/nginx/html
name: discuz
- mountPath: /etc/nginx/nginx.conf
name: nginx-conf
subPath: nginx.conf
- mountPath: /etc/nginx/conf.d
name: default-conf
volumes:
- name: discuz
persistentVolumeClaim:
claimName: discuz
- name: nginx-conf
configMap:
name: nginx
items:
- key: nginx.conf
path: nginx.conf
- name: default-conf
configMap:
name: nginx
items:
- key: default.conf
path: default.conf
[root@k8s-m-01 discuz]# cat job.yaml
apiVersion: batch/v1
kind: Job
metadata:
name: job-master
namespace: mysql-master
spec:
template:
spec:
restartPolicy: OnFailure
containers:
- name: master-create-user
image: mysql:5.7
imagePullPolicy: IfNotPresent
command:
- "/bin/bash"
- "-c"
- |
MYSQL_MASTER_SVC_NAME=mysql-master.mysql-master.svc.cluster.local
MYSQL_MASTER_PASSWORD=123
MYSQL_MASTER_USERNAME=root
while true
do
mysql -u${MYSQL_MASTER_USERNAME} -p${MYSQL_MASTER_PASSWORD} -h${MYSQL_MASTER_SVC_NAME} -e 'show databases;' >/dev/null 2>&1
if [ $? -eq 0 ];then
mysql -u${MYSQL_MASTER_USERNAME} -p${MYSQL_MASTER_PASSWORD} -h${MYSQL_MASTER_SVC_NAME} -e "grant replication slave on *.* to 'slave'@'%' identified by '123'; flush privileges;"
break;
fi
sleep 1;
done
---
apiVersion: batch/v1
kind: Job
metadata:
name: job-node
namespace: mysql-node
spec:
template:
spec:
restartPolicy: OnFailure
containers:
- name: mysql-node
image: mysql:5.7
imagePullPolicy: IfNotPresent
command:
- "/bin/bash"
- "-c"
- |
MYSQL_NODE_SVC_NAME=mysql-node.mysql-node.svc.cluster.local
MYSQL_NODE_PASSWORD=123
MYSQL_NODE_USERNAME=root
while true
do
mysql -u${MYSQL_NODE_USERNAME} -p${MYSQL_NODE_PASSWORD} -h${MYSQL_NODE_SVC_NAME} -e 'show databases;' >/dev/null 2>&1
if [ $? -eq 0 ];then
mysql -u${MYSQL_NODE_USERNAME} -p${MYSQL_NODE_PASSWORD} -h${MYSQL_NODE_SVC_NAME} -e "show master status\G" > /tmp/log
MASTER_LOG_FILE=`/bin/cat /tmp/log | /usr/bin/awk -F: 'NR==2{print $2}' | /usr/bin/tr -d " "`
MYSQL_LOG_POS=`/bin/cat /tmp/log | /usr/bin/awk -F: 'NR==3{print $2}' | /usr/bin/tr -d " "`
mysql -u${MYSQL_NODE_USERNAME} -p${MYSQL_NODE_PASSWORD} -h${MYSQL_NODE_SVC_NAME} -e "change master to master_host='mysql-master.mysql-master.svc.cluster.local',master_port=3306,master_user='slave',master_password='123',master_log_file='"${MASTER_LOG_FILE}"',master_log_pos="${MYSQL_LOG_POS}";"
mysql -u${MYSQL_NODE_USERNAME} -p${MYSQL_NODE_PASSWORD} -h${MYSQL_NODE_SVC_NAME} -e "start slave;"
break;
fi
sleep 1;
done
[root@k8s-m-01 discuz]# cat mysql-master.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: mysql-master
namespace: mysql-master
spec:
selector:
matchLabels:
app: mysql-master
template:
metadata:
labels:
app: mysql-master
spec:
containers:
- name: mysql-master
image: mysql:5.7
imagePullPolicy: IfNotPresent
env:
- name: MYSQL_ROOT_PASSWORD
value: "123"
volumeMounts:
- mountPath: /etc/mysql/my.cnf
name: master-my-cnf
subPath: my.cnf
volumes:
- name: master-my-cnf
configMap:
name: master-my-cnf
items:
- key: master-my-conf
path: my.cnf
[root@k8s-m-01 discuz]# cat mysql-node.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: mysql-node
namespace: mysql-node
spec:
selector:
matchLabels:
app: mysql-node
template:
metadata:
labels:
app: mysql-node
spec:
containers:
- name: mysql-node
image: mysql:5.7
imagePullPolicy: IfNotPresent
env:
- name: MYSQL_ROOT_PASSWORD
value: "123"
volumeMounts:
- mountPath: /etc/mysql/my.cnf
name: node-my-cnf
subPath: my.cnf
volumes:
- name: node-my-cnf
configMap:
name: node-my-cnf
items:
- key: node-my-cnf
path: my.cnf
[root@k8s-m-01 discuz]# cat namespace.yaml
apiVersion: v1
kind: Namespace
metadata:
name: mysql-master
---
apiVersion: v1
kind: Namespace
metadata:
name: mysql-node
---
apiVersion: v1
kind: Namespace
metadata:
name: discuz
[root@k8s-m-01 discuz]# cat service.yaml
apiVersion: v1
kind: Service
metadata:
name: mysql-master
namespace: mysql-master
spec:
selector:
app: mysql-master
ports:
- port: 3306
targetPort: 3306
name: mysql
protocol: TCP
---
apiVersion: v1
kind: Service
metadata:
name: mysql-node
namespace: mysql-node
spec:
selector:
app: mysql-node
ports:
- port: 3306
targetPort: 3306
name: mysql
protocol: TCP
---
apiVersion: v1
kind: Service
metadata:
name: discuz
namespace: discuz
spec:
selector:
app: discuz
ports:
- port: 80
targetPort: 80
name: http
protocol: TCP
- port: 443
targetPort: 443
name: https
protocol: TCP
type: NodePort
[root@k8s-m-01 discuz]# cat volume.yaml
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: discuz
namespace: discuz
spec:
storageClassName: nfs-client
accessModes:
- "ReadWriteMany"
resources:
requests:
storage: "8Gi"