2024年8月30日（docker部署project-exam-system系统 并用Dockerfile构建java镜像）

一、回顾

1.使用harbao仓库

1. Python -- version

2. yum -y update

3. yum -y install python2-pip

4. pip install -- upgrade pip == 20.3 -i https://mirrors.aliyun.com/pypi/simple

5. pip install docker-compose -i https://mirrors.aliyun.com/pypi/simple

6. source docker.sh

7.解压harbar

8. vim harbor.yml

9. hostname

10. https注释

11. ./prepare

12. ./installed

13. 使用nginx发布web服务

14. 使用registry管理

2.docker-compose的编排

1. 在学习kubernetes之前的热身

2.通过运行一个yum管理docker容器

3. docker-compose.yml

vim docker-compose
version: "2"
service: 
    nginx:
        contanner_name: name0
        images: nginx:latest
        ports:
        - "80:80"
        volumns:
        - /opt/web/:/usr/share/nginx/html/

二、项目：使用基础的docker指令来创建镜像，实现项目的发布

[root@docker ~]# vim /etc/docker/daemon.json

{
        "registry-mirrors": [
                "https://do.nark.eu.org",
                "https://dc.j8.work",
                "https://docker.m.daocloud.io",
                "https://dockerproxy.com",
                "https://docker.mirrors.ustc.edu.cn",
                "https://docker.nju.edu.cn"
        ]
}

[root@docker ~]# systemctl start docker

拉取nginx

[root@docker ~]# docker pull nginx

三、docker部署project-exam-system系统

1、背景：在一台主机之内实现容器的编排，发布考试系统

2、环境准备：

1. docker

vim /etc/docker/daemon.json

{
        "registry-mirrors": [
                "https://do.nark.eu.org",
                "https://dc.j8.work",
                "https://docker.m.daocloud.io",
                "https://dockerproxy.com",
                "https://docker.mirrors.ustc.edu.cn",
                "https://docker.nju.edu.cn"
        ]
}

2. docker-compose

3、普通的部署

1. 镜像

**前端：**nginx latest服务

拉取nginx：latest镜像

测试

上传前端项目dist

后端的业务： spring boot不能单独部署tomcat，已经在spring boot中内置tomcat

1. 准备拉取基础centos镜像

2. jdk17版本的文件

3. 项目资源.war .. perpreties

4. 将在服务器上的Java的资源文件上传到容器

5. 对已经上传到容器的文件进行部署 docker attach 57

6. tar -xzvf jdk-17_linux-x64_bin.tar.gz -C /usr/local/jdk/ --strip-components=1

7. 尝试启动

**数据持久化业务：**MySQL5.7.44

前端

（1）创建nginx容器

[root@docker ~]# docker run -itd -p80:80 nginx:latest

[root@docker ~]# docker ps 
CONTAINER ID   IMAGE          COMMAND                   CREATED          STATUS          PORTS                               NAMES
56c77a78a1c1   nginx:latest   "/docker-entrypoint...."   40 seconds ago   Up 39 seconds   0.0.0.0:80->80/tcp, :::80->80/tcp   admiring_banach

[root@docker ~]# docker exec -it 56 ls /usr/share/nginx/html

50x.html index.html

（2）创建一个目录，不单独放置前端的资料，把后端的资料也都放到这里

[root@docker ~]# mkdir project_exam_system

[root@docker ~]# cd project_exam_system/

[root@docker project_exam_system]# mkdir web

（3）上传文件

C:\Users\89765>scp -r "D:\青岛实训\project_exam_system\dist" root@192.168.8.196:~/project_exam_system/web/

[root@docker project_exam_system]# ls

web

[root@docker project_exam_system]# ls web/

dist

[root@docker project_exam_system]# ls web/dist/

assets favicon.ico index.html

（4）删除之前创建的nginx容器

[root@docker project_exam_system]# docker stop 56

56

[root@docker project_exam_system]# docker rm 56

56

（5）再创建容器，不止映射端口，还挂载目录

[root@docker project_exam_system]# docker run -itd -p80:80 -v /root/project_exam_system/web/dist/:/usr/share/nginx/html/ nginx:latest

881bf9bd662746918396fc79254e0fde7fd382ab6c14973304f6069bea644619

[root@docker project_exam_system]# docker exec -it 88 ls /usr/share/nginx/html

assets favicon.ico index.html

（6）测试成功

出现问题,在实现登录的时候,都实现后段异常,原因后段还没后部署

登录的时候请求的域名bu.yuanyu.zhangmin,我们是hosts域名劫持来实现

vi /etc/hosts
192.168.8.196 bu.yuanyu.zhangmin

sudo echo "192.168.8.196 bu.yuanyu.zhangmin" >> /etc/hosts

后端

（1）上传包

（2）创建容器

[root@docker ~]# docker run -it centos:latest /bin/bash

[root@573bb9975f03 /]# ls

bin etc lib lost+found mnt proc run srv tmp var

dev home lib64 media opt root sbin sys usr

[root@573bb9975f03 /]# [root@docker ~]#

（3）将在服务器上的Java的资源文件上传到容器

[root@docker ~]# docker cp application.properties 57:/

Successfully copied 4.1kB to 57:/

[root@docker ~]# docker cp Project_ExamSystem-V1.0.0.war 57:/

Successfully copied 41MB to 57:/

[root@docker ~]# docker cp jdk-17_linux-x64_bin.tar.gz 57:/

Successfully copied 183MB to 57:/

（4）进入容器

[root@docker ~]# docker attach 57

[root@573bb9975f03 /]# ls 
Project_ExamSystem-V1.0.0.war  lib64	   sbin
application.properties	       lost+found  srv
bin			       media	   sys
dev			       mnt	   tmp
etc			       opt	   usr
home			       proc	   var
jdk-17_linux-x64_bin.tar.gz    root
lib			       run

（5）创建jdk解压目录

[root@573bb9975f03 /]# mkdir /usr/local/jdk

（6）解压jdk包

[root@573bb9975f03 /]# tar -xzvf jdk-17_linux-x64_bin.tar.gz -C /usr/local/jdk/ --strip-components=1

（7）修改application.properties 文件

[root@573bb9975f03 /]# vi application.properties

spring.datasource.url=jdbc:mysql://192.168.8.196:3306/project_exam_system  #本机IP地址 
spring.datasource.username=lxe 
spring.datasource.password=lxe
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver

（8）尝试启动

[root@573bb9975f03 /]# /usr/local/jdk/bin/java -jar Project_ExamSystem-V1.0.0.war
CTRL+P+Q

[root@docker ~]# curl 172.17.0.3:8080

{"code":20002,"msg":"账号不存在或密码错误"}[root@docker ~]#

（9）根据容器57创建镜像

[root@docker ~]# docker commit 57 java:v0

[root@docker ~]# docker images

REPOSITORY                  TAG       IMAGE ID       CREATED         SIZE
java                        v0        b27ef2926644   6 seconds ago   774MB

（10）删除掉上面的57容器

[root@docker ~]# docker stop 57

57

[root@docker ~]# docker rm 57

57

（11）根据新建的镜像创建镜像

[root@docker ~]# docker run -itd -p8080:8080 java:v0 /usr/local/jdk/bin/java -jar Project_ExamSystem-V1.0.0.war

[root@docker ~]# docker ps

CONTAINER ID   IMAGE          COMMAND                   CREATED             STATUS             PORTS                                       NAMES
7f42f4f5381a   java:v0        "/usr/local/jdk/bin/..."   6 seconds ago       Up 5 seconds       0.0.0.0:8080->8080/tcp, :::8080->8080/tcp   happy_hodgkin

[root@docker ~]# docker stop 7f

7f

[root@docker ~]# docker rm 7f

7f

（12）重新创建容器

[root@docker ~]# docker run -itd -p8080:8080 java:v0

2cd9c025556983e6710ff6cd508a94d6df9217ba05f79c673bab1beadc35e5f2

[root@docker ~]# docker ps

CONTAINER ID   IMAGE          COMMAND                   CREATED             STATUS             PORTS                                       NAMES
2cd9c0255569   java:v0        "/bin/bash"               12 seconds ago      Up 12 seconds      0.0.0.0:8080->8080/tcp, :::8080->8080/tcp   beautiful_haslett
881bf9bd6627   nginx:latest   "/docker-entrypoint...."   About an hour ago   Up About an hour   0.0.0.0:80->80/tcp, :::80->80/tcp           goofy_agnesi

[root@docker ~]# docker attach 2c //将java容器的终端附加到当前终端

[root@2cd9c0255569 /]# /usr/local/jdk/bin/java -jar Project_ExamSystem-V1.0.0.war //启动spring boot微服务

MySQL

（1）拉取MySQL镜像

[root@docker ~]# docker pull mysql:5.7.44

[root@docker ~]# docker images

mysql                       5.7.44    5107333e08a8   8 months ago    501MB

（2）创建容器并映射端口

[root@docker ~]# docker run -itd -e MYSQL_ROOT_PASSWORD=root -p3306:3306 mysql:5.7.44

[root@docker ~]# docker ps

CONTAINER ID   IMAGE          COMMAND                   CREATED         STATUS         PORTS                                                  NAMES
408f1e6cec5b   mysql:5.7.44   "docker-entrypoint.s..."   4 seconds ago   Up 4 seconds   0.0.0.0:3306->3306/tcp, :::3306->3306/tcp, 33060/tcp   pedantic_solomon

（3）向容器中上传文件

[root@docker ~]# docker cp 408:/var/lib/mysql project_exam_system/

Successfully copied 220MB to /root/project_exam_system/

（4）将mysql文件上传

C:\Users\89765>scp "D:\青岛实训\project_exam_system\project_exam_system.sql" root@192.168.8.196:~/project_exam_system
[root@docker ~]# cd project_exam_system/

[root@docker project_exam_system]# ls

mysql project_exam_system.sql web

[root@docker project_exam_system]# rm -rf mysql/

[root@docker project_exam_system]# mkdir mysql

[root@docker project_exam_system]# mv project_exam_system.sql mysql/

[root@docker project_exam_system]# head mysql/project_exam_system.sql

create database if not exists project_exam_system charset utf8mb4;
use project_exam_system;
/*
 Navicat MySQL Data Transfer

 Source Server         : MySQL84
 Source Server Type    : MySQL
 Source Server Version : 80400
 Source Host           : localhost:3308
 Source Schema         : project_exam_system

（5）将sql文件上传到mysql容器中

[root@docker ~]# docker cp project_exam_system/mysql/project_exam_system.sql 40:/

Successfully copied 11MB to 40:/

[root@docker ~]# docker exec 40 ls

project_exam_system.sql

（6）使用exec指令访问数据库管理界面

#由于在java的配置文件中,访问数据库的账号和密码不是root,而是lxe

[root@docker ~]# docker exec -it 40 mysql -uroot -proot

mysql> show databases;
+---------------------+
| Database            |
+---------------------+
| information_schema  |
| mysql               |
| performance_schema  |
| project_exam_system |
| sys                 |
+---------------------+
5 rows in set (0.00 sec)
mysql> create user 'lxe'@'%' identified by 'lxe';
Query OK, 0 rows affected (0.00 sec)

mysql> grant all on *.* to 'lxe'@'%';
Query OK, 0 rows affected (0.00 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

4、Dockerfile

创建java资源存放目录，并将所有资源文件移动到java目录中

[root@docker ~]# mkdir project_exam_system/java

[root@docker ~]# mv jdk-17_linux-x64_bin.tar.gz project_exam_system/java/

[root@docker ~]# mv application.properties project_exam_system/java/

[root@docker ~]# mv Project_ExamSystem-V1.0.0.war project_exam_system/java/

[root@docker ~]# tree -L 3 project_exam_system/

project_exam_system/
├── java
│   ├── application.properties
│   └── jdk-17_linux-x64_bin.tar.gz
├── mysql
│   └── project_exam_system.sql
└── web
    └── dist
        ├── assets
        ├── favicon.ico
        └── index.html

5 directories, 5 files

编写Dockerfile文件

[root@docker ~]# vim project_exam_system/java/Dockerfile

FROM centos:latest

ADD application.properties /application.properties

ADD jdk/ /usr/local/jdk

ADD Project_ExamSystem-V1.0.0.war /Project_ExamSystem-V1.0.0.war

ADD java.sh /java.sh

RUN chmod -v +x /java.sh

WORKDIR /

EXPOSE 8080

CMD [ "java.sh","/bin/bash" ]

进入到java资源目录中并解压jdk，并改名

[root@docker ~]# cd project_exam_system/java/

[root@docker java]# tar -xzvf jdk-17_linux-x64_bin.tar.gz

[root@docker java]# mv jdk-17.0.12/ jdk

使用当前目录下的Dockerfile来构建一个名为java:v1的镜像。

[root@docker java]# docker build -t java:v1 .

[root@docker java]# docker images
REPOSITORY                  TAG       IMAGE ID       CREATED          SIZE
java                        v1        541d15b51e02   58 seconds ago   591MB

[root@docker java]# vim java.sh

#!/bib/bash
/usr/local/jdk/bin/java -jar Project_ExamSystem-v1.0.0.war

根据java:v1镜像创建容器

[root@docker java]# docker run -it -p8081:8080 java:v1 /bin/bash

[root@1ef5404323e8 /]# ls

Project_ExamSystem-V1.0.0.war  home       media  run    usr
application.properties           java.sh       mnt      sbin    var
bin                   lib       opt      srv
dev                   lib64       proc   sys
etc                   lost+found  root   tmp

[root@1ef5404323e8 /]# /usr/local/jdk/bin/java -jar Project_ExamSystem-V1.0.0.war

[root@docker java]# docker exec 1ef ss -anut| grep 8080

tcp   LISTEN 0      128                *:8080            *:*