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搭建LNMT架构
2022-08-01 12:48:00 【51CTO】
LNMT:
操作系统 ：CentOS Linux release 7.4.1708 (Core)
Nginx服务器：nginx/1.22.0
Tomcat服务器： Apache Tomcat/8.5.60
数据库服务器：mysql Ver 15.1 Distrib 5.5.68-MariaDB
一、部署Nginx服务器
# hostnamectl set-hostname nginx-200
# vi /etc/sysconfig/network-scripts/ifcfg-ens33
TYPE
=Ethernet
BOOTPROTO
=static
NAME
=ens33
DEVICE
=ens33
ONBOOT
=
yes
IPADDR
=
192.168.10.200
NETMASK
=
255.255.255.0
GATEWAY
=
192.168.10.2
DNS1
=
114.114.114.114
DNS2
=
8.8.8.8
# yum install gcc zlib zlib-devel pcre pcre-devel openssl openssl-devel
# useradd -g nginx -M -u 888 -s /sbin/nologin nginx
# tar xf nginx-1.22.0.tar.gz
# cd nginx-1.22.0/
[[email protected] /usr/local/src/nginx-1.22.0]
# ./configure --user=nginx --group=nginx --prefix=/usr/local/nginx --with-http_stub_status_module --with-http_sub_module --with-http_ssl_module --with-pcre
[[email protected] /usr/local/src/nginx-1.22.0]
# make && make install
[[email protected] /usr/local]
# netstat -lant
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp
0
0
0.0.0.0:22
0.0.0.0:* LISTEN
tcp
0
36
192.168.10.200:22
192.168.10.1:1452 ESTABLISHED
tcp6
0
0 :::22 :::* LISTEN
[[email protected] /usr/local/nginx/sbin]
# ./nginx
[[email protected] /usr/local/nginx/sbin]
# netstat -lant
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp
0
0
0.0.0.0:80
0.0.0.0:* LISTEN
tcp
0
0
0.0.0.0:22
0.0.0.0:* LISTEN
tcp
0
36
192.168.10.200:22
192.168.10.1:1452 ESTABLISHED
tcp6
0
0 :::22 :::* LISTEN
[[email protected] /usr/local/nginx/conf]
# cat nginx.conf
user nginx nginx;
worker_processes
1;
error_log logs/error.log;
pid logs/nginx.pid;
events {
worker_connections
1024;
}
http {
include 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"';
sendfile on;
keepalive_timeout
65;
charset utf-8;
upstream tomcat-apps {
server
192.168.10.202:8080
weight
=
1
max_fails
=
3
fail_timeout
=10s;
server
192.168.10.203:8080
weight
=
3
max_fails
=
3
fail_timeout
=10s;
server
192.168.10.204:8080
weight
=
1
max_fails
=
3
fail_timeout
=10s;
}
server {
listen
80;
server_name www.class1.com;
access_log /usr/local/nginx/logs/class1.com.access.log main;
location / {
proxy_pass http://tomcat-apps;
index index.html;
}
}
server {
listen
80;
server_name www.class2.com;
access_log /usr/local/nginx/logs/class2.com.access.log main;
location / {
root /data/web-data/class2.com;
index index.html;
}
}
server {
listen
82;
access_log off;
location / {
root /data/web-data/test.com;
}
}
}
[[email protected] ~]
# /usr/local/nginx/sbin/nginx -t
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful
[[email protected] ~]
# curl localhost
<html>
<head><title>502 Bad Gateway</title></head>
<body>
<center><h1>502 Bad Gateway</h1></center>
<hr><center>nginx/1.22.0</center>
</body>
</html>
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二、部署Tomcat服务器并Tomcat集群
## 解压jdk ：
[[email protected] /usr/local]
# tar xf jdk-8u201-linux-x64.tar.gz
[[email protected] /usr/local]
# ls
## 创建 jdk 软连接
[[email protected] /usr/local]
# ln -s /usr/local/jdk1.8.0_201 /usr/local/jdk
## 解压 Tomcat
[[email protected] /usr/local]
# tar xf apache-tomcat-8.5.60.tar.gz
## 创建tomcat软连接
[[email protected] /usr/local]
# ln -s /usr/local/apache-tomcat-8.5.60 /usr/local/tomcat
[[email protected] /usr/local]
# ls
########### 修改环境变量配置文件
[[email protected] ~]
# vim /etc/profile
按G跳转至最后一行
按o 新起一行进入模式
粘贴以下内容
export
JAVA_HOME
=/usr/local/jdk
export
CLASSPATH
=
$JAVA_HOME/lib/tools.jar:
$JAVA_HOME/lib/dt.jar:
$JAVA_HOME/lib:/test
export
PATH
=
$JAVA_HOME/bin:
$PATH
export
TOMCAT_HOME
=/usr/local/tomcat
#按ESC退出插入模式，输入 :wq 退出
## 当前shell进程重新读取 /etc/profile 配置文件
[[email protected] ~]
# source /etc/profile
[[email protected] /]
# java -version
java version
"1.8.0_201"
Java(TM) SE Runtime Environment (build
1.8.0_201-b09)
Java HotSpot(TM)
64
-Bit Server VM (build
25.201-b09, mixed mode)
[[email protected] /]
# /usr/local/tomcat/bin/startup.sh
Using CATALINA_BASE: /usr/local/tomcat
Using CATALINA_HOME: /usr/local/tomcat
Using CATALINA_TMPDIR: /usr/local/tomcat/temp
Using JRE_HOME: /usr/local/jdk
Using CLASSPATH: /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar
Using CATALINA_OPTS:
Tomcat started.
[email protected] /]
# netstat -ntl
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp
0
0
0.0.0.0:22
0.0.0.0:* LISTEN
tcp6
0
0 :::8080 :::* LISTEN
tcp6
0
0 :::22 :::* LISTEN
tcp6
0
0
127.0.0.1:8005 :::* LISTEN
[[email protected] /usr/local/nginx]
# vim /usr/local/nginx/conf/nginx.conf
user nginx nginx;
worker_processes
1;
error_log logs/error.log;
pid logs/nginx.pid;
events {
worker_connections
1024;
}
http {
include mime.types;
default_type application/octet-stream;
log_format main
'$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
sendfile on;
keepalive_timeout
65;
charset utf-8;
upstream tomcat-apps {
server
192.168.10.202:8080
weight
=
1
max_fails
=
3
fail_timeout
=10s;
server
192.168.10.203:8080
weight
=
1
max_fails
=
3
fail_timeout
=10s;
server
192.168.10.204:8080
weight
=
1
max_fails
=
3
fail_timeout
=10s;
}
server {
listen
80;
server_name www.class1.com;
access_log /usr/local/nginx/logs/class1.com.access.log main;
location / {
proxy_pass http://tomcat-apps;
index index.html;
}
}
server {
listen
80;
server_name www.class2.com;
access_log /usr/local/nginx/logs/class2.com.access.log main;
location / {
root /data/web-data/class2.com;
index index.html;
}
}
}
## 保存退出，重载nginx 服务器
[[email protected] /usr/local/nginx]
# /usr/local/nginx/sbin/nginx -s reload
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三、admin跳板机：配置Ansible自动化运维
[[email protected] ~]
# ssh-keygen -t rsa
[[email protected] ~]
# ssh-copy-id 192.168.10.200
[[email protected] ~]
# ssh-copy-id 192.168.10.202
[[email protected] ~]
# ssh-copy-id 192.168.10.203
[[email protected] ~]
# ssh-copy-id 192.168.10.204
[[email protected] ~]
# ssh 192.168.10.200 hostname
nginx-200
[[email protected] ~]
# ssh 192.168.10.202 hostname
tomcat-202
[[email protected] ~]
# ssh 192.168.10.203 hostname
tomcat-203
[[email protected] ~]
# ssh 192.168.10.204 hostname
tomcat-204
[[email protected] ~]
# yum install ansible -y
[[email protected] ~]
# ansible --version
ansible
2.9.27
## 创建主机清单
[[email protected] ~]
# vim /etc/ansible/hosts
[nginx]
192.168.10.200
[tomcat]
192.168.10.202
192.168.10.203
192.168.10.204
[[email protected] ~]
# ansible tomcat -m command -a "hostname"
192.168.10.204 | CHANGED |
rc
=
0 >>
tomcat-204
192.168.10.203 | CHANGED |
rc
=
0 >>
tomcat-203
192.168.10.202 | CHANGED |
rc
=
0 >>
tomcat-202
[[email protected] /data/ansible-file]
# ansible tomcat -m shell -a "ls /usr/local/tomcat/webapps"
192.168.10.204 | CHANGED |
rc
=
0 >>
app1
docs
examples
host-manager
manager
Pro1
Pro1.war
ROOT
192.168.10.203 | CHANGED |
rc
=
0 >>
app1
docs
examples
host-manager
manager
Pro1
Pro1.war
ROOT
192.168.10.202 | CHANGED |
rc
=
0 >>
app1
docs
examples
host-manager
manager
Pro1
Pro1.war
ROOT
ansible db,tomcat,nginx
-m shell
-a
"shutdown -h now"
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四、安装部署mysql数据库服务器
## 安装 mariadb工具包，和服务器包
[[email protected] ~]
# yum install mariadb mariadb-server
.... .... ...
作为依赖被升级:
mariadb-libs.x86_64
1:5.5.68-1.el7
完毕！
####### 初始化数据库
[[email protected] ~]
# cd /var/lib/mysql/
[[email protected] /var/lib/mysql]
# mysql_install_db --datadir=/var/lib/mysql --user=mysql
[[email protected] /var/lib/mysql]
# ls
aria_log.00000001 aria_log_control mysql performance_schema test
### 启动mysql服务，监听3306 端口
[[email protected] /var/lib/mysql]
# systemctl start mariadb
[[email protected] ~]
# netstat -lntat
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp
0
0
0.0.0.0:22
0.0.0.0:* LISTEN
tcp
0
0
0.0.0.0:3306
0.0.0.0:* LISTEN
tcp
0
0
192.168.10.225:3306
192.168.10.226:49370 ESTABLISHED
tcp
0
36
192.168.10.225:22
192.168.10.1:1211 ESTABLISHED
tcp6
0
0 :::22 :::* LISTEN
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五、部署主从数据库
#主数据库：
[[email protected] ~]
# vim /etc/my.cnf
log_bin
= mysql-bin
binlog_ignore_db
= mysql
server_id
=
225
MariaDB [(none)]> grant all privileges on *.* to [email protected]
'%' identified by
"000000";
Query OK,
0 rows affected (0.00 sec)
MariaDB [(none)]> grant replication slave on *.* to
'user'@
'192.168.10.226' identified by
'000000';
Query OK,
0 rows affected (0.00 sec)
#从数据库
[[email protected] ~]
# vim /etc/my.cnf
log_bin
= mysql-bin
binlog_ignore_db
= mysql
server_id
=
226
MariaDB [(none)]> change master to
master_host
=
'mysql-225'
,master_user
=
'user'
,master_password
=
'000000';
MariaDB [(none)]>
start slave;
MariaDB [(none)]> show slave status\G;
***************************
1. row ***************************
Slave_IO_State: Waiting
for master to send event
Master_Host:
192.168.10.225
Master_User: user
Master_Port:
3306
Connect_Retry:
60
Master_Log_File: mysql-bin.000003
Read_Master_Log_Pos:
245
Relay_Log_File: mariadb-relay-bin.000006
Relay_Log_Pos:
529
Relay_Master_Log_File: mysql-bin.000003
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno:
0
Last_Error:
Skip_Counter:
0
Exec_Master_Log_Pos:
245
Relay_Log_Space:
1109
Until_Condition: None
Until_Log_File:
Until_Log_Pos:
0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master:
0
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno:
0
Last_IO_Error:
Last_SQL_Errno:
0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id:
225
1 row
in
set (0.01 sec)
ERROR: No query specified
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六、测试结果如下：
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