day40(8/30)——使用docker部署project-exam-system

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

8.1 hostname

8.2 https 注释

9. ./prepare

10. ./installed

10.1 使用nginx发布web服务

10.2 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.yml
version: "2"
service:
nginx:
contanner_name: name0
image: nginx:latest
ports:
- "80:80"
volumns:
- /opt/web/:/usr/share/nginx/html/

1.容器的角色

2.容器的位置

3.容器的启动

4.容器之间的关系

playbook role 编排

二、使用docker部署project-exam-system
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
1.1 vim /etc/docker/daemon.json

[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

3、普通部署
1. 镜像
1.1 前端：nginx服务
（1）拉取nginx:latest镜像

[root@docker ~]# docker search nginx
[root@docker ~]# docker pull nginx

（2）创建nginx容器

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

[root@docker ~]# docker ps --all

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
243f7f9a0470 nginx:latest "/docker-entrypoint.…" 12 seconds ago Up 12 seconds 0.0.0.0:80->80/tcp, :::80->80/tcp ecstatic_johnson
[root@docker ~]# docker exec -it 243 ls /usr/share/nginx/html
50x.html index.html

（3）创建一个目录，不单独放置前端的内容，将后端的所有资料也放在这里

[root@docker ~]# mkdir project_exam_system
[root@docker ~]# cd project_exam_system/
[root@docker project_exam_system]# mkdir web

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

（4）上传项目 dist

C:\Users\think book>scp -r E:\xxxx\dist\ root@192.168.8.168:~/project_exam_system/web/
[root@docker project_exam_system]# docker stop 243
243
[root@docker project_exam_system]# docker rm 243

（5）再创建一个容器，不映射端口

[root@docker web]# docker run -itd -p80:80 -v /root/project_exam_system/web/dist/:/usr/share/nginx/html/ nginx:latest
46ffd2bf7face9ce7866af7d440f43f299c4c7d8d6c51444a0db602e162a1353
[root@docker web]# docker exec -it 46f ls /usr/share/nginx/html
assets favicon.ico index.html

（6）测试

登录异常，原因是后端没有部署

登陆的时候请求域名，我们是hosts域名劫持来实现

修改/etc/hosts

192.168.8.168 bu.yuanyu.zhangmin

1.2 后端业务
springboot 优点不用单独部署tomcat，已经在springboot中部署tomcat

（1）准备拉取基础镜像

[root@docker project_exam_system]# docker pull centos

（2）创建容器

[root@docker ~]# docker run -it centos:latest /bin/bash
[root@5fd07aadd6a6 /]# ls

bin etc lib lost+found mnt proc run srv tmp var
dev home lib64 media opt root sbin sys usr
（3）将在服务器上的java文件上传到容器中

资源项目.war .properties

[root@docker ~]# docker cp jdk-17_linux-x64_bin.tar.gz 5fd:/
Successfully copied 183MB to 5fd:/
[root@docker ~]# docker cp application.properties 5fd:/
Successfully copied 4.1kB to 5fd:/
[root@docker ~]# docker cp Project_ExamSystem-V1.0.0.war 5fd:/
Successfully copied 41MB to 5fd:/

（4）对已经传到容器的文件进行部署

[root@docker ~]# docker attach 5fd
[root@5fd07aadd6a6 /]# 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
（4）创建jdk解压目录

[root@5fd07aadd6a6 /]# mkdir /usr/local/jdk
[root@5fd07aadd6a6 /]# tar -zxvf jdk-17_linux-x64_bin.tar.gz -C /usr/local/jdk/ --strip-components=1 //=1 ：跳过一层目录

[root@5fd07aadd6a6 /]# ls /usr/local/jdk/
LICENSE bin include legal man
README conf jmods lib release

（5）修改applation.proerties文件

[root@5fd07aadd6a6 /]# vi application.properties

spring.datasource.url=jdbc:mysql://192.168.8.168:3306/project_exam_system
spring.datasource.username=blt
spring.datasource.password=blt
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
（6）启动

[root@5fd07aadd6a6 /]# /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"}

（7）根据容器生成镜像

[root@docker ~]# docker commit 5fd java:v0
[root@docker ~]# docker images

REPOSITORY TAG IMAGE ID CREATED SIZE
java v0 21a2b56dffe3 21 seconds ago 774MB
centos yum 1bd5d7b13eed 2 days ago 272MB
nginx latest 5ef79149e0ec 2 weeks ago 188MB
[root@docker ~]# docker stop df
df
[root@docker ~]# docker rm 5f
df

（8）根据新建的镜像创建容器

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

[root@docker ~]# docker ps

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f68d82c68dfe java:v0 "/bin/bash" 5 minutes ago Up 5 minutes 0.0.0.0:8080->8080/tcp, :::8080->8080/tcp fervent_ganguly
[root@docker ~]# docker attach f6
[root@f68d82c68dfe /]# /usr/local/jdk/bin/java -jar Project_ExamSystem-V1.0.0.war

1.3 数据持久化业务 mysql 5.7.44
（1）拉取mysql镜像

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

[root@docker ~]# docker images

REPOSITORY TAG IMAGE ID CREATED SIZE
mysql 5.7.44 5107333e08a8 8 months ago 501MB
（2）根据镜像制作容器，并映射端口

[root@docker ~]# docker run -itd -e MYSQL_ROOT_PASSWORD=root -p3306:3306 mysql:5.7.44
7dcf9b329a1abef12c82dbcf1d1eac9ce2b908ac84909490088a09e2611dadc8
[root@docker ~]# docker ps --all

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
7dcf9b329a1a mysql:5.7.44 "docker-entrypoint.s…" 5 seconds ago Up 4 seconds 0.0.0.0:3306->3306/tcp, :::3306->3306/tcp, 33060/tcp nice_gauss
（3）导出数据库文件

[root@docker ~]# docker cp 7dc:/var/lib/mysql project_exam_system/

C:\Users\think book>scp E:\xxx\project_exam_system.sql root@192.168.8.168:~/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]# 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
（4）将sql上传到MySQL容器

[root@docker ~]# docker cp project_exam_system/mysql/project_exam_system.sql 7dc:/
Successfully copied 11MB to 7dc:/

（5）执行mysql文件

（6）使用exec指令访问数据库管理界面

[root@docker ~]# docker exec -it 7dc mysql -uroot -proot

mysql> show databases;
+---------------------+
| Database |
+---------------------+
| information_schema |
| mysql |
| performance_schema |
| project_exam_system |
| sys |
+---------------------+
5 rows in set (0.01 sec)
mysql> create user 'blt'@'%' identified by 'blt';
Query OK, 0 rows affected (0.00 sec)

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

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

（7）登录测试

（8）Dockerfile优化

创建Java资源存放目录，并把所有资源文件移动到Java目录下

[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
│ └── Project_ExamSystem-V1.0.0.war
├── mysql
│ └── project_exam_system.sql
└── web
└── dist
├── assets
├── favicon.ico
└── index.html

5 directories, 6 files
进入java目录解压jdk并改名

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

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

编写.sh文件和Dockerfile文件

[root@docker java]# vim start.sh

#!/bin/bash
/usr/local/jdk/bin/java -jar Project_ExamSystem-V1.0.0.war
[root@docker 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

WORKDIR /

EXPOSE 8080

ADD start.sh /start.sh

RUN chmod -v +x /start.sh

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

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 5d3dda7a16e7 21 seconds ago 591MB
根据java:v1镜像创建容器

[root@docker java]# docker run -it -p8081:8080 java:v1 /bin/bash
[root@a3ab4be45e47 /]# /usr/local/jdk/bin/java -jar Project_ExamSystem-V1.0.0.war
[root@docker java]# docker exec a3a ss -anut | grep 8080

tcp LISTEN 0 128 *:8080 *:*