最簡單的spring boot打包docker映象的實現
阿新 • • 發佈:2020-10-23
這個spring boot專案只在網頁輸出一個hello world文字,沒有其他複雜的配置和頁面,屬於入門級,可以放心食用。
本專案通過maven打包,打包和構建映象的命令為:
mvn clean install package docker:build
spring boot打包docker映象步驟如下:
(一)
在pom.xml檔案中新增docker配置:
<!--docker maven plugin,在目錄src/main/docker下建立Dockerfile檔案,Dockerfile檔案用來說明如何構建按映象--> <plugin> <groupId>com.spotify</groupId> <artifactId>docker-maven-plugin</artifactId> <version>0.4.13</version> <configuration> <imageName>${project.artifactId}</imageName> <dockerDirectory>src/main/docker</dockerDirectory> <resources> <resource> <targetPath>/</targetPath> <directory>${project.build.directory}</directory> <!--下面的.jar不要忘記寫,否則會報“ Exception caught: ADD failed: stat /var/lib/docker/tmp/docker-builder646478477/yang-0.0.1.jar: no such file or directory”錯誤--> <include>${project.build.finalName}.jar</include> </resource> </resources> </configuration> </plugin>
(二)
在src/main/docker資料夾(新建資料夾)下建Dockerfile檔案,該檔案不要字尾,可以新建一個txt檔案,再把.txt字尾去掉,檔案內容如下:
From java:8 VOLUME /TMP ADD yang-0.0.1.jar /yang-0.0.1.jar ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/yang.jar"]
ADD yang-0.0.1.jar /yang-0.0.1.jar的名字 要和pom的<artifactId>yang</artifactId>
保持名字一樣,不然maven打出來的包,docker找不到。
比如,我這個專案中的<artifactId>標籤內容為:
pom.xml檔案:
<artifactId>yang</artifactId> <version>0.0.1</version> <name>yang</name> <packaging>jar</packaging>
Dockerfile檔案:
ADD yang-0.0.1.jar /yang-0.0.1.jar
ADD yang-0.0.1.jar /yang-0.0.1.jar這一句前面的jar包是本地打包的jar包名稱,後面是複製到docker後的重新命名。
本專案完整的pom.xml檔案內容如下,各位可以作為參考:
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.2.4.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.springboot</groupId> <artifactId>yang</artifactId> <version>0.0.1</version> <name>yang</name> <packaging>jar</packaging> <description>Demo project for Spring Boot</description> <properties> <java.version>1.8</java.version> <!--<docker.image.prefix>yang-0.0.1</docker.image.prefix>--> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> <scope>runtime</scope> <optional>true</optional> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <optional>true</optional> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> <exclusions> <exclusion> <groupId>org.junit.vintage</groupId> <artifactId>junit-vintage-engine</artifactId> </exclusion> </exclusions> </dependency> <!--redis--> <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-redis --> <!--<dependency>--> <!--<groupId>org.springframework.boot</groupId>--> <!--<artifactId>spring-boot-starter-redis</artifactId>--> <!--<version>1.4.7.RELEASE</version>--> <!--</dependency>--> <!--<!– https://mvnrepository.com/artifact/mysql/mysql-connector-java –>--> <!--<dependency>--> <!--<groupId>mysql</groupId>--> <!--<artifactId>mysql-connector-java</artifactId>--> <!--<version>8.0.18</version>--> <!--</dependency>--> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> <!--docker maven plugin,在目錄src/main/docker下建立Dockerfile檔案,Dockerfile檔案用來說明如何構建按映象--> <plugin> <groupId>com.spotify</groupId> <artifactId>docker-maven-plugin</artifactId> <version>0.4.13</version> <configuration> <!--<imageName>${docker.image.prefix}/${project.artifactId}</imageName>--> <imageName>${project.artifactId}</imageName> <dockerDirectory>src/main/docker</dockerDirectory> <resources> <resource> <targetPath>/</targetPath> <directory>${project.build.directory}</directory> <include>${project.build.finalName}.jar</include> </resource> </resources> </configuration> </plugin> </plugins> </build> </project>
到此這篇關於最簡單的spring boot打包docker映象的實現的文章就介紹到這了,更多相關spring boot打包docker映象內容請搜尋我們以前的文章或繼續瀏覽下面的相關文章希望大家以後多多支援我們!