前言
項目需要:
安裝Dockeridea中安裝docker插件,并配置docker一個SpringBoot項目創(chuàng)建Dockerfile
一、下載、安裝、配置Docker下載Docker
下載地址:官網(wǎng)下載 Docker
安裝
一直下一步就行
配置路徑:Settings–General 勾選 Expose daemon on tcp://localhost:2375 without TLS
設(shè)置鏡像,提高下載鏡像的速度https://xaiqlt1z.mirror.aliyuncs.com
測試是否安裝成功
C:\Users\msi>docker -v
Docker version 19.03.12, build 48a66213fe
C:\Users\msi> docker run hello-world
Hello from Docker!
This message shows that your installation appears to be working correctly.
To generate this message, Docker took the following steps:
1. The Docker client contacted the Docker daemon.
2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
(amd64)
3. The Docker daemon created a new container from that image which runs the
executable that produces the output you are currently reading.
4. The Docker daemon streamed that output to the Docker client, which sent it
to your terminal.
To try something more ambitious, you can run an Ubuntu container with:
$ docker run -it ubuntu bash
Share images, automate workflows, and more with a free Docker ID:
https://hub.docker.com/
For more examples and ideas, visit:
https://docs.docker.com/get-started/
二、Idea 安裝Docker插件
1.安裝docker插件在idea中: file--Plugins--Marketplace 搜索 Docker 安裝
2.配置Docker服務(wù)
file – 搜索docker – 選擇Docker – 右側(cè)添加一個Docker
Connection successful 顯示,表示 Docker鏈接成功
三、創(chuàng)建SpringBoot項目,修改pom.xmlspringMVC 項目,訪問 localhost:8080/hello 顯示 hello 字符串
@RequestMapping("/hello")
@ResponseBody
public String hello () {
return "hello";
}
1.配置pom.xml 文件
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>com.spotify</groupId>
<artifactId>docker-maven-plugin</artifactId>
<version> 1.2.1</version>
<executions>
<execution>
<id>build-image</id>
<phase>package</phase>
<goals>
<goal>build</goal>
</goals>
</execution>
</executions>
<configuration>
<imageName>${project.artifactId}</imageName>
<imageTags>
<imageTag>latest</imageTag>
</imageTags>
<dockerDirectory>${project.basedir}</dockerDirectory>
<dockerHost>http://localhost:2375</dockerHost>
<resources>
<resource>
<targetPath>/</targetPath>
<directory>${project.build.directory}</directory>
<include>${project.build.finalName}</include>
</resource>
</resources>
</configuration>
</plugin>
</plugins>
</build>
2.創(chuàng)建Docker 文件
在main文件夾下創(chuàng)建一個docker文件夾,并在里面創(chuàng)建一個Dockerfile文件。xxxxx.jar 是使用maven打包后復(fù)制進(jìn)來的。
Dockerfile 文件內(nèi)容:
# From java image, version : 8
FROM java:8
# 掛載app目錄
VOLUME /app
# COPY or ADD to image
COPY demo-0.0.1-SNAPSHOT.jar app.jar
RUN bash -c "touch /app.jar"
EXPOSE 8080
ENTRYPOINT ["java", "-jar", "app.jar"]
maven打包,將其target目錄下的jar包復(fù)制進(jìn)docker目錄下。
配置Dockerfile配置
運行
運行成功
測試
使用docker 檢查容器是否啟動:
測試項目是否啟動:
總結(jié)
今天學(xué)了下Docker容器,基本的命令學(xué)會了,但是一直沒弄懂怎么使用。借此機(jī)會就花費時間進(jìn)行學(xué)習(xí)。目前只是會用,后面會補上步驟詳細(xì)描述。
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