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8.30-使用docker容器部署考试项目+使用Dockerfile部署java项目

article 2024/11/15 5:45:19

部署考试系统

一、在容器中部署nginx

1.编写docker脚本

[root@docker001 ~]# vim docker.sh
cat << EOF | tee /etc/modules-load.d/k8s.conf 
overlay
br_netfilter
EOF

modprobe overlay

modprobe br_netfilter

cat << EOF | tee /etc/sysctl.d/k8s.conf
net.bridge.bridge-nf-call-iptables = 1
net.bridge.bridge-nf-call-ip6tables = 1
net.ipv4.ip_forward = 1
EOF

sysctl --system

yum install -y yum-utils device-mapper-persistent-data lvm2

yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo



yum install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin -y

# 运行docker脚本
[root@docker001 ~]# source docker.sh

2.修改docker配置文件daemon.json

[root@docker001 ~]# 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"
    ]
}

3.修改docker.service文件

[root@docker001 ~]# vim /usr/lib/systemd/system/docker.service 
13	ExecStart=/usr/bin/dockerd
[root@docker001 ~]# systemctl daemon-reload

4.重启docker服务

[root@docker001 ~]# systemctl restart docker

5.拉取nginx镜像

[root@docker001 ~]# docker pull nginx

6.查看镜像

[root@docker001 ~]# docker images
REPOSITORY   TAG       IMAGE ID       CREATED       SIZE
nginx        latest    5ef79149e0ec   2 weeks ago   188MB

7.创建容器

# 创建容器
[root@docker001 ~]# docker run -itd -p80:80 nginx:latest 
db8ffd17378657990222bb65accff54631c41e9251c844f1f95c8b66d44a0c7a

# 查看创建的容器
[root@docker001 ~]# docker ps
CONTAINER ID   IMAGE          COMMAND                   CREATED          STATUS          PORTS                               NAMES
db8ffd173786   nginx:latest   "/docker-entrypoint.…"   26 seconds ago   Up 25 seconds   0.0.0.0:80->80/tcp, :::80->80/tcp   upbeat_stonebraker

# 访问测试
[root@docker001 ~]# curl localhost
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
html { color-scheme: light dark; }
body { width: 35em; margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif; }
</style>
</head>
<body>
<h1>Welcome to nginx!</h1>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p>

<p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.</p>

<p><em>Thank you for using nginx.</em></p>
</body>
</html>

# 使用exec命令查看容器nginx中的/usr/share/nginx/html目录
[root@docker001 ~]# docker exec -it db8 ls /usr/share/nginx/html
50x.html  index.html

8.在容器启动之后，nginx服务就发布了

二、部署考试系统的前端

创建一个目录，不单独放置前端的资料，将后端的所有资料也都放在这里

1.创建目录

[root@docker001 ~]# mkdir project_exam_system
[root@docker001 ~]# cd project_exam_system/
[root@docker001 project_exam_system]# mkdir web
[root@docker001 project_exam_system]# cd web/
[root@docker001 web]# rz -E
rz waiting to receive.

2.将dist文件放到web目录下

# 解压dist.zip包
[root@docker001 web]# unzip dist.zip

# 查看解压后的文件
[root@docker001 web]# ls
dist  dist.zip

# 删除dist.zip包
[root@docker001 web]# rm -rf dist.zip 

# 只需要留下解压后的dist文件
[root@docker001 web]# ls
dist

3.查看web目录下dist文件中的内容

[root@docker001 web]# cd ..
[root@docker001 project_exam_system]# ls web/dist/
assets  favicon.ico  index.html

4.删除测试nginx页面所创建容器

# 停止db8容器的运行
[root@docker001 project_exam_system]# docker stop db8
db8

# 删除容器
[root@docker001 project_exam_system]# docker rm db8
db8

5.创建容器 ，映射端口为80，挂载/usr/share/nginx/html目录

[root@docker001 web]# docker run -itd -p80:80 -v /root/project_exam_system/web/dist/:/usr/share/nginx/html nginx:latest
11568e4a88646ea4b1cb9243678fe220ae263ea70591441f093dd72a7f4660a8

6.查看创建的容器

[root@docker001 web]# docker ps
CONTAINER ID   IMAGE          COMMAND                   CREATED          STATUS          PORTS                                       NAMES
11568e4a8864   nginx:latest   "/docker-entrypoint.…"   29 seconds ago   Up 28 seconds   0.0.0.0:80->80/tcp, :::80->80/tcp           vibrant_gates

7.修改hosts文件

在物理机的C:\Windows\System32\drivers\etc中找到hosts文件，添加IP地址和域名

8.测试前端页面

浏览器访问：192.168.2.60

三、部署考试系统的后端

1.拉取centos镜像

[root@docker001 ~]# docker pull centos

2.将软件包拖到root下

#将软件包jdk-17_linux-x64_bin.tar.gz 和软件包project_exam_system.zip拖到root下
[root@docker001 ~]# ls
anaconda-ks.cfg  docker.sh  jdk-17_linux-x64_bin.tar.gz  project_exam_system.zip

3.解压软件包project_exam_system.zip

# 解压project_exam_system.zip软件包
[root@docker001 ~]# unzip project_exam_system.zip 
Archive:  project_exam_system.zip

# 查看解压包后的文件
[root@docker001 ~]# ls
anaconda-ks.cfg         docker.sh                    Project_ExamSystem-V1.0.0.war
application.properties  jdk-17_linux-x64_bin.tar.gz  project_exam_system.zip
dist                    project_exam_system.sql

4.使用centos镜像创建容器

# 使用centos镜像创建容器
[root@docker001 ~]# docker run -itd centos:latest /bin/bash
d107d28c1503012c6f9aa43d09c94d64f439c60de61d2c3c2d4d565690fdca0f

# 查看创建的容器
[root@docker001 ~]# docker ps
CONTAINER ID   IMAGE           COMMAND                   CREATED          STATUS          PORTS                               NAMES
d107d28c1503   centos:latest   "/bin/bash"               12 seconds ago   Up 11 seconds                                       quirky_chandrasekhar
11568e4a8864   nginx:latest    "/docker-entrypoint.…"   2 minutes ago    Up 2 minutes    0.0.0.0:80->80/tcp, :::80->80/tcp   vibrant_gates

5.将宿主机root目录下的微服务项目文件复制到用centos镜像创建的容器中

# 将宿主机的jdk包复制到容器中
[root@docker001 ~]# docker cp jdk-17_linux-x64_bin.tar.gz d107:/
Successfully copied 183MB to d107:/

# 将宿主机的Project包复制到容器中
[root@docker001 ~]# docker cp Project_ExamSystem-V1.0.0.war d107:/
Successfully copied 41MB to d107:/

# 将宿主机的application文件复制到容器中
[root@docker001 ~]# docker cp application.properties d107:/
Successfully copied 4.1kB to d107:/

6.挂载容器的终端

[root@docker001 ~]# docker attach d107

7.查看有没有将软件包和文件复制到容器中

[root@d107d28c1503 /]# ls
Project_ExamSystem-V1.0.0.war  home			    media  run	 usr
application.properties	       jdk-17_linux-x64_bin.tar.gz  mnt    sbin  var
bin			       lib			    opt    srv
dev			       lib64			    proc   sys
etc			       lost+found		    root   tmp

8.在容器中创建目录，解压包

# 在容器中创建目录
[root@d107d28c1503 /]# mkdir /usr/local/jdk

# 解压软件包到指定目录，并且跳过第一层目录
[root@d107d28c1503 /]# tar -zxf jdk-17_linux-x64_bin.tar.gz -C /usr/local/jdk/ --strip-components=1

[root@d107d28c1503 /]# ls /usr/local/jdk/
LICENSE  README  bin  conf  include  jmods  legal  lib	man  release

9.在容器中修改application.properties文件

[root@d107d28c1503 /]# vi application.properties 
spring.datasource.url=jdbc:mysql://192.168.2.60:3306/project_exam_system

10.在容器中运行Project_ExamSystem-V1.0.0.war并访问验证

[root@d107d28c1503 /]# /usr/local/jdk/bin/java -jar Project_ExamSystem-V1.0.0.war

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/

 :: Spring Boot ::                (v3.3.2)

2024-08-30 05:03:07.508  INFO 21 --- [           main] com.dn.es.ProjectExamSystemApplication             : Starting ProjectExamSystemApplication vV1.0.0 using Java 17.0.12 with PID 21 (/Project_ExamSystem-V1.0.0.war started by root in /)
2024-08-30 05:03:07.511  INFO 21 --- [           main] com.dn.es.ProjectExamSystemApplication             : No active profile set, falling back to 1 default profile: "default"
2024-08-30 05:03:09.435  INFO 21 --- [           main] o.s.d.r.config.RepositoryConfigurationDelegate     : Multiple Spring Data modules found, entering strict repository configuration mode
2024-08-30 05:03:09.440  INFO 21 --- [           main] o.s.d.r.config.RepositoryConfigurationDelegate     : Bootstrapping Spring Data Redis repositories in DEFAULT mode.
2024-08-30 05:03:09.497  INFO 21 --- [           main] o.s.d.r.config.RepositoryConfigurationDelegate     : Finished Spring Data repository scanning in 31 ms. Found 0 Redis repository interfaces.
2024-08-30 05:03:11.178  INFO 21 --- [           main] o.s.boot.web.embedded.tomcat.TomcatWebServer       : Tomcat initialized with port 8080 (http)
2024-08-30 05:03:11.211  INFO 21 --- [           main] org.apache.coyote.http11.Http11NioProtocol         : Initializing ProtocolHandler ["http-nio-8080"]
2024-08-30 05:03:11.213  INFO 21 --- [           main] org.apache.catalina.core.StandardService           : Starting service [Tomcat]
2024-08-30 05:03:11.213  INFO 21 --- [           main] org.apache.catalina.core.StandardEngine            : Starting Servlet engine: [Apache Tomcat/10.1.26]
2024-08-30 05:03:11.623  INFO 21 --- [           main] o.a.c.core.ContainerBase.[Tomcat].[localhost].[/]  : Initializing Spring embedded WebApplicationContext
2024-08-30 05:03:11.624  INFO 21 --- [           main] o.s.b.w.s.c.ServletWebServerApplicationContext     : Root WebApplicationContext: initialization completed in 3998 ms
2024-08-30 05:03:14.976  INFO 21 --- [           main] org.apache.coyote.http11.Http11NioProtocol         : Starting ProtocolHandler ["http-nio-8080"]
2024-08-30 05:03:15.732  INFO 21 --- [           main] o.s.boot.web.embedded.tomcat.TomcatWebServer       : Tomcat started on port 8080 (http) with context path '/'
2024-08-30 05:03:15.815  INFO 21 --- [           main] com.dn.es.ProjectExamSystemApplication             : Started ProjectExamSystemApplication in 9.652 seconds (process running for 10.863)
read escape sequence
[root@docker001 ~]# curl 173.17.0.3:8080

{"code":20002,"msg":"账号不存在或密码错误"}[root@docker001 ~]#

11.使用容器创建java镜像

[root@docker001 ~]# docker commit d107 java:v0
sha256:64b4ea040bff2b7d3476273d62a5ae235fabe90e495ea81c6ac4efc6e33f2fd3

# 查看创建的java镜像
[root@docker001 ~]# docker images
REPOSITORY   TAG       IMAGE ID       CREATED          SIZE
java         v0        64b4ea040bff   10 seconds ago   774MB
<none>       <none>    22eb536c0d76   54 minutes ago   774MB
nginx        latest    5ef79149e0ec   2 weeks ago      188MB
centos       latest    5d0da3dc9764   2 years ago      231MB

12.查看容器

[root@docker001 ~]# docker ps
CONTAINER ID   IMAGE           COMMAND                   CREATED          STATUS          PORTS                               NAMES
d107d28c1503   centos:latest   "/bin/bash"               14 minutes ago   Up 14 minutes                                       quirky_chandrasekhar
11568e4a8864   nginx:latest    "/docker-entrypoint.…"   17 minutes ago   Up 17 minutes   0.0.0.0:80->80/tcp, :::80->80/tcp   vibrant_gates

13.删除使用centos镜像创建的容器

因为已经用这个容器导出java镜像了

# 停止容器
[root@docker001 ~]# docker stop d107
d107

# 删除容器
[root@docker001 ~]# docker rm d107
d107

14.使用java镜像创建容器

[root@docker001 ~]# docker run -itd -p8080:8080 java:v0
464d9b2b5f0b4a0cb80ac134128130393f67f7d0bf37c84763cdbf5a29015c1f

15.查看用java镜像创建的容器

[root@docker001 ~]# docker ps
CONTAINER ID   IMAGE          COMMAND                   CREATED          STATUS          PORTS                                       NAMES
464d9b2b5f0b   java:v0        "/bin/bash"               9 seconds ago    Up 8 seconds    0.0.0.0:8080->8080/tcp, :::8080->8080/tcp   epic_pascal
11568e4a8864   nginx:latest   "/docker-entrypoint.…"   19 minutes ago   Up 19 minutes   0.0.0.0:80->80/tcp, :::80->80/tcp           vibrant_gates

16.在创建的容器中运行

# 挂载创建的容器的终端
[root@docker001 ~]# docker attach 464d

# 运行
[root@464d9b2b5f0b /]# /usr/local/jdk/bin/java -jar Project_ExamSystem-V1.0.0.war

17.访问测试：

浏览器访问：192.168.2.60，出现200和500就是对的

四、数据库持久化-5.7.44

1.拉取mysql镜像

[root@docker001 ~]# docker pull mysql:5.7.44

2.使用mysql镜像创建容器

# 使用mysql镜像创建端口号为3306，用户和密码为root的容器
[root@docker001 ~]# docker run -itd -e MYSQL_ROOT_PASSWORD=root -p3306:3306 mysql:5.7.44 
1a07feb046ee3038c2364c5b655ff4cfd31acf28db5e747810fc42b05195338d

# 查看创建的容器
[root@docker001 ~]# docker ps 
CONTAINER ID   IMAGE          COMMAND                   CREATED              STATUS              PORTS                                                  NAMES
1a07feb046ee   mysql:5.7.44   "docker-entrypoint.s…"   About a minute ago   Up About a minute   0.0.0.0:3306->3306/tcp, :::3306->3306/tcp, 33060/tcp   optimistic_herschel
464d9b2b5f0b   java:v0        "/bin/bash"               2 hours ago          Up About an hour    0.0.0.0:8080->8080/tcp, :::8080->8080/tcp              epic_pascal
11568e4a8864   nginx:latest   "/docker-entrypoint.…"   3 hours ago          Up About an hour    0.0.0.0:80->80/tcp, :::80->80/tcp                      vibrant_gates

3.在project_exam_system/目录下创建mysql目录

[root@docker001 ~]# mkdir mysql
[root@docker001 ~]# mv mysql project_exam_system/
[root@docker001 ~]# ls project_exam_system/
mysql  web

4.远程登录mysql运行project_exam_system.sql文件

5.使用exec命令登录mysql

[root@docker001 ~]# docker exec -it 1a mysql -uroot -proot
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 5
Server version: 5.7.44 MySQL Community Server (GPL)

Copyright (c) 2000, 2023, Oracle and/or its affiliates.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.


# 查看数据库
mysql> show databases;
+---------------------+
| Database            |
+---------------------+
| information_schema  |
| mysql               |
| performance_schema  |
| project_exam_system |
| sys                 |
+---------------------+
5 rows in set (0.00 sec)

# 创建和java项目中的用户
mysql> create user 'zhangmin'@'%' identified by 'zhangmin';
Query OK, 0 rows affected (0.00 sec)

# 给创建的用户所有的权限
mysql> grant all on *.* to 'zhangmin'@'%';
Query OK, 0 rows affected (0.00 sec)

# 刷新权限
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

mysql>

6.在远程工具中查看用户和密码

7.进行用户登录

8.进入考试系统

五、实现镜像的自动创建

1.查看root下的文件

[root@docker001 ~]# ls
anaconda-ks.cfg         jdk-17_linux-x64_bin.tar.gz  Project_ExamSystem-V1.0.0.war
application.properties  project_exam_system          project_exam_system.zip
docker.sh               project_exam_system.sql.0

2.创建project_exam_system/java目录

[root@docker001 ~]# mkdir project_exam_system/java

3.将文件拷贝到project_exam_system/java/目录下

# 将root目录下application.properties文件拷贝到project_exam_system/java/目录下
[root@docker001 ~]# cp application.properties project_exam_system/java/

# 将root目录下jdk包拷贝到project_exam_system/java/目录下
[root@docker001 ~]# cp jdk-17_linux-x64_bin.tar.gz project_exam_system/java/

# 将root目录下Project_ExamSystem-V1.0.0.war包拷贝到project_exam_system/java/目录下
[root@docker001 ~]# cp Project_ExamSystem-V1.0.0.war project_exam_system/java/

4.解压jdk软件包

[root@docker001 java]# tar -zxvf jdk-17_linux-x64_bin.tar.gz

5.查看解压后的文件

[root@docker001 java]# ls
application.properties  jdk-17.0.12                  Project_ExamSystem-V1.0.0.war
Dockerfile              jdk-17_linux-x64_bin.tar.gz

6.给解压后的jdk-17.0.12文件改名为jdk

[root@docker001 java]# mv jdk-17.0.12/ jdk

7.查看改名后的文件

[root@docker001 java]# ls
application.properties  jdk                          Project_ExamSystem-V1.0.0.war
Dockerfile              jdk-17_linux-x64_bin.tar.gz

8.编写start.sh文件

[root@docker001 java]# vim start.sh

# !/bin/bash

/usr/local/jdk/bin/java -jar /Project_ExamSystem-V1.0.0.war

9.编辑Dockerfile文件

[root@docker001 java]# vim  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 start.sh /start.sh

RUN chmod -v +x start.sh
WORKDIR /

EXPOSE 8080

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

10.创建一个名为java:v1镜像

[root@docker001 java]# docker build -t java:v1 .
[+] Building 0.4s (11/11) FINISHED                                     docker:default
 => [internal] load build definition from Dockerfile                             0.0s
 => => transferring dockerfile: 369B                                             0.0s
 => [internal] load metadata for docker.io/library/centos:latest                 0.0s
 => [internal] load .dockerignore                                                0.0s
 => => transferring context: 2B                                                  0.0s
 => [1/7] FROM docker.io/library/centos:latest                                   0.0s
 => [internal] load build context                                                0.0s
 => => transferring context: 54.75kB                                             0.0s
 => CACHED [2/7] ADD application.properties /application.properties              0.0s
 => CACHED [3/7] ADD jdk/ /usr/local/jdk/                                        0.0s
 => CACHED [4/7] ADD Project_ExamSystem-V1.0.0.war /Project_ExamSystem-V1.0.0.w  0.0s
 => [5/7] ADD start.sh /start.sh                                                 0.0s
 => [6/7] RUN chmod -v +x start.sh                                               0.2s
 => exporting to image                                                           0.1s
 => => exporting layers                                                          0.1s
 => => writing image sha256:1afee7532f08bf1bb19320165a076f4293abee9094e4c164317  0.0s
 => => naming to docker.io/library/java:v1                                       0.0s

11.使用java:v1创建一个容器，映射端口为8081

[root@docker001 java]# docker run -itd -p8081:8080 java:v1 
1aa141a489fbe18838c0d56c316446faa807eeb7da152a64203eb73e1ab15f1e

12.查看创建的容器

[root@docker001 java]# docker ps
CONTAINER ID   IMAGE          COMMAND                   CREATED             STATUS             PORTS                                                  NAMES
1aa141a489fb   java:v1        "/start.sh /bin/bash"     5 seconds ago       Up 5 seconds       0.0.0.0:8081->8080/tcp, :::8081->8080/tcp              jolly_buck
1a07feb046ee   mysql:5.7.44   "docker-entrypoint.s…"   About an hour ago   Up About an hour   0.0.0.0:3306->3306/tcp, :::3306->3306/tcp, 33060/tcp   optimistic_herschel
464d9b2b5f0b   java:v0        "/bin/bash"               3 hours ago         Up 2 hours         0.0.0.0:8080->8080/tcp, :::8080->8080/tcp              epic_pascal
11568e4a8864   nginx:latest   "/docker-entrypoint.…"   4 hours ago         Up 2 hours         0.0.0.0:80->80/tcp, :::80->80/tcp                      vibrant_gates

13.查看容器是否开启服务

# 使用exec命令查看容器内开启的端口

[root@docker001 java]# docker exec 1aa141 ss -tuln|grep 8080
tcp   LISTEN 0      128                *:8080            *:*

14.访问测试

[root@docker001 java]# curl localhost:8081
{"code":20002,"msg":"账号不存在或密码错误"}

15.在宿主机上检查有没有开启服务

[root@docker001 java]# netstat -lnput|grep 8081
tcp        0      0 0.0.0.0:8081            0.0.0.0:*               LISTEN      20459/docker-proxy  
tcp6       0      0 :::8081                 :::*                    LISTEN      20463/docker-proxy


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