Table of contents

First, you have to have a cloud server - just buy one

Explain with Centos image, make a note, all resources

install jdk

Install jdk11 here (resource one)

Create a jdk folder in the usr/local directory

Transfer jdk-11.0.14_linux-x64_bin.tar.gz to the jdk directory and extract it to the current directory

tar -zxvf jdk-11.0.14_linux-x64_bin.tar.gz

Configure environment variables

[root@VM-12-8-centos jdk]# vim /etc/profile

。。。。。

if [ -n "${BASH_VERSION-}" ] ; then
        if [ -f /etc/bashrc ] ; then
                # Bash login shells run only /etc/profile
                # Bash non-login shells run only /etc/bashrc
                # Check for double sourcing is done in /etc/bashrc.
                . /etc/bashrc
       fi
fi

//末尾添加
export JAVA_HOME=/usr/local/jdk/jdk-11.0.14
export PATH=$JAVA_HOME/bin:$PATH
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
"/etc/profile" 89L, 2211C    
:wq保存退出后，让其生效
[root@VM-12-8-centos jdk]#  source /etc/profile

Install MySQL

Install mysql8.0.29 here (resource 2)

Create the mysql folder in the usr/local directory

Transfer mysql-8.0.29-linux-glibc2.12-x86_64.tar.xz to the mysql folder and decompress it to the current directory

tar xvf mysql-8.0.29-linux-glibc2.12-x86_64.tar.xz

Modify directory name

mv mysql-8.0.29-linux-glibc2.12-x86_64 mysql8.0.29

Create a data folder in the directory

cd mysql8.0.29/
mkdir data

Create a mysql user and authorize it

groupadd mysql
useradd -g mysql mysql
chown -R mysql.mysql /usr/local/mysql/mysql8.0.29

Enter the bin directory and initialize mysql

cd bin/
./mysqld --user=mysql --basedir=/usr/local/mysql/mysql8.0.29 --datadir=/usr/local/mysql/mysql8.0.29/data/ --initialize

The running result is as follows, there is a password in it, save the password:

[root@VM-12-8-centos bin]# ./mysqld --user=mysql --basedir=/usr/local/mysql/mysql8.0.29 --datadir=/usr/local/mysql/mysql8.0.29/data/ --initialize
2022-05-18T03:17:38.004698Z 0 [System] [MY-013169] [Server] /usr/local/mysql/mysql8.0.29/bin/mysqld (mysqld 8.0.29) initializing of server in progress as process 22024
2022-05-18T03:17:38.021352Z 1 [System] [MY-013576] [InnoDB] InnoDB initialization has started.
2022-05-18T03:17:39.300600Z 1 [System] [MY-013577] [InnoDB] InnoDB initialization has ended.
2022-05-18T03:17:41.163199Z 6 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: szhdqpAKo1--

Next, edit the configuration file

vi /etc/my.cnf

[mysqld]
  basedir=/usr/local/mysql/mysql8.0.29
  datadir=/usr/local/mysql/mysql8.0.29/data/
  socket=/tmp/mysql.sock
  character-set-server=UTF8MB4

After saving and exiting, return to the previous level to the installation directory, and add mysql to the service

cd ..
cp -a ./support-files/mysql.server /etc/init.d/mysql
chmod +x /etc/init.d/mysql
chkconfig --add mysql
service mysql start
service mysql status
ln -sf /usr/local/mysql/mysql8.0.29/bin/mysql /usr/bin

mysql -u root -p

若出现错误
mysql: error while loading shared libraries: libtinfo.so.5: cannot open shared object file: No such file or directory
输入
sudo ln -s /usr/lib64/libtinfo.so.6.1 /usr/lib64/libtinfo.so.5

Enter the password, the password is the password at the time of initialization

After entering, reset the password, set the password you want, and let it take effect

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '123456'; 
flush privileges;

Set up remote connection

use mysql;
update user set host='%' where user='root';
flush privileges;

Open port 3306, which allows us to connect to

firewall-cmd --add-port=3306/tcp --permanent

If FirewalID is not running, open your firewall

systemctl start firewalld.service
systemctl enable firewalld.service

Open the port for it to take effect

firewall-cmd --add-port=3306/tcp --permanent
firewall-cmd --reload

Then, open this port in your security group or firewall

Use database tools, I use DBeaver, test the connection, and it can be used normally after passing. (resource three)

install tomcat server

Install tomcat9.0.63 here (resource 4)

Create a tomcat folder in the usr/local directory

Transfer apache-tomcat-9.0.63.tar.gz to the tomcat folder and decompress it to the current directory

tar -zxvf apache-tomcat-9.0.63.tar.gz

Modify directory name

mv apache-tomcat-9.0.63 tomcat9.0.63

Configure environment variables

vi /etc/profile

在末尾加上
export CATALINA_HOME=/usr/local/tomcat/tomcat9.0.63
export CATALINA_BASE=/usr/local/tomcat/tomcat9.0.63
export PATH=$PATH:$CATALINA_BASE/bin
export PATH CATALINA_BASE

:wq保存推出

let it take effect

source /etc/profile

Go to the tomcat configuration file and modify the tomcat startup port

cd /usr/loacl/tomcat/tomcat9.0.63/conf/
vi server.xml

Temporarily change the port number to 80

Firewall open port 80

firewall-cmd --add-port=80/tcp --permanent
firewall-cmd --reload

Go back to the bin directory and start tomcat

./startup.sh

Open the web page at this time, enter ip to see the tomcat welcome interface

After success, it is best to change the port back to 8080

Install Nginx reverse proxy server

Install nginx1.21.6 here (resource five)

Create nginx1.21.6 folder in usr/local directory

Transfer nginx-1.21.6.tar.gz to the nginx1.21.6 folder and extract it to the current directory

tar zxvf nginx-1.21.6.tar.gz

Enter the directory, use compile and install

cd nginx-1.21.6/
./configure --prefix=/usr/local/nginx

After running, you can see the missing dependencies

Common Missing Installs

yum install -y gcc
yum install -y pcre pcre-devel
yum install -y zlib zlib-devel

After the installation is complete, re-execute the compilation and installation

Next execute

make
make install

Enter usr/local and you can see that nginx has been installed successfully

Create a service script for nginx

vi /usr/lib/systemd/system/nginx.service

Script content, pay attention to the directory

[Unit]
Description=nginx - web server
After=network.target remote-fs.target nss-lookup.target
[Service]
Type=forking
PIDFile=/usr/local/nginx/logs/nginx.pid
ExecStartPre=/usr/local/nginx/sbin/nginx -t -c /usr/local/nginx/conf/nginx.conf
ExecStart=/usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf
ExecReload=/usr/local/nginx/sbin/nginx -s reload
ExecStop=/usr/local/nginx/sbin/nginx -s stop
ExecQuit=/usr/local/nginx/sbin/nginx -s quit
PrivateTmp=true
[Install]
WantedBy=multi-user.target

Use a script to start nginx, kill all processes occupying port 80 before starting

lsof -i :80
kill -9 PID

systemctl start nginx

Open the web page at this time, enter the ip to see the nginx welcome interface

After each modification, nginx needs to be reloaded

systemctl reload nginx

Use nginx to proxy tomcat, the tomcat port has been changed to 8080, the following are common configurations


worker_processes  1;


#pid        logs/nginx.pid;


events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    sendfile        on;
    keepalive_timeout  65;

    #upstream httpds {
        
    #    server 192.168.83.102:80 weight=8 ;
    #    server 192.168.83.103:80 weight=2 ;
    #    server 192.168.83.104:80 weight=1 backup;

    #}

    server {
        listen       80;
        server_name  localhost;

        location / {
            proxy_pass http://localhost:8080;
        }

          location /public {
            root  html;
            index  index.html index.htm;
         }

          location /static {
             root  html;
             index  index.html index.htm;
           }

          location /logo.ico {
             root  html;
             index  index.html index.htm;
           }

          location /pdf {
             root  html;
             index  index.html index.htm;
           }


        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

    }
}

After configuration, reload nginx

systemctl reload nginx

Open the page at this time, it has become the tomcat welcome page

Cloud server environment construction

install jdk

Install MySQL

install tomcat server

Install Nginx reverse proxy server

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