问题
I'm developing a Spring Boot app with several data services, but I'm struggling to get it working as a containerized application. This is the project folder structure:
myapp/
├── src/
│ └── ...
├── docker-compose.yml
├── Dockerfile
├── init-mongo.js
└── pom.xml
And this is the Dockerfile content I came up with after reading tutorials and official documentation:
#
# Build stage
#
FROM maven:3.5-jdk-8 AS build
COPY init-mongo.js /docker-entrypoint-initdb.d/
COPY src /app/src/
COPY pom.xml /app/
RUN mvn -f /app/pom.xml clean package
#
# Package stage
#
FROM openjdk:8-alpine
COPY --from=build /app/target/*.jar /usr/app/app.jar
ENTRYPOINT ["java","-jar","/usr/app/app.jar"]
And this is my docker-compose.yml:
version: '3'
services:
app-mongodb:
container_name: app-mongodb
image: mongo
environment:
MONGO_INITDB_DATABASE: appdb
MONGO_INITDB_ROOT_USERNAME: mongodbusr
MONGO_INITDB_ROOT_PASSWORD: mongodbpwd
volumes:
- mongodata:/usr/share/mongodb/data
ports:
- "27017:27017"
hostname: app-mongodb
app-mariadb:
container_name: app-mariadb
image: mariadb
environment:
MYSQL_DATABASE: appdb
MYSQL_ROOT_PASSWORD: mariadbpwd
MYSQL_ROOT_HOST: '%'
ports:
- "3306:3306"
restart: always
app-elasticsearch:
container_name: app-elasticsearch
image: docker.elastic.co/elasticsearch/elasticsearch:6.8.6
volumes:
- esdata:/usr/share/elasticsearch/data
ports:
- "9200:9200"
hostname: app-elasticsearch
app:
build: .
ports:
- 8080:8080
depends_on:
- app-mariadb
- app-mongodb
- app-elasticsearch
volumes:
mongodata:
esdata:
Thing is it should work, but I keep getting Maven error whenever I run the docker-compose up command:
myapp_1 | [INFO] Scanning for projects...
myapp_1 | [INFO] ------------------------------------------------------------------------
myapp_1 | [INFO] BUILD FAILURE
myapp_1 | [INFO] ------------------------------------------------------------------------
myapp_1 | [INFO] Total time: 0.216 s
myapp_1 | [INFO] Finished at: 2020-10-24T19:25:15Z
myapp_1 | [INFO] ------------------------------------------------------------------------
myapp_1 | [ERROR] No goals have been specified for this build. You must specify a valid lifecycle phase or a goal in the format <plugin-prefix>:<goal>
or <plugin-group-id>:<plugin-artifact-id>[:<plugin-version>]:<goal>. Available lifecycle phases are: validate, initialize, generate-sources, process-sources, generate
-resources, process-resources, compile, process-classes, generate-test-sources, process-test-sources, generate-test-resources, process-test-resources, test-compile, pr
ocess-test-classes, test, prepare-package, package, pre-integration-test, integration-test, post-integration-test, verify, install, deploy, pre-clean, clean, post-clea
n, pre-site, site, post-site, site-deploy. -> [Help 1]
myapp_1 | [ERROR]
myapp_1 | [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
myapp_1 | [ERROR] Re-run Maven using the -X switch to enable full debug logging.
myapp_1 | [ERROR]
myapp_1 | [ERROR] For more information about the errors and possible solutions, please read the following articles:
myapp_1 | [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/NoGoalSpecifiedException
What am I missing?
EDIT: I tried explicitly packaging the JAR file and then just copying it to the end container editing the Dockerfile content, as suggested by @BeppeC:
FROM openjdk:8-alpine
COPY target/*.jar /usr/app/app.jar
ENTRYPOINT ["java","-jar","/usr/app/app.jar"]
It's still producing the same error, so it seems there's something triggering the mvn build which I'm not aware of.
EDIT2: I suspect what is causing the "no goals" error might be something wrong with my pom.xml file:
<?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>it.clsoft</groupId>
<artifactId>myapp</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>myapp</name>
<description>My web app</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.session</groupId>
<artifactId>spring-session-core</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.12</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-elasticsearch</artifactId>
<version>3.2.10.RELEASE</version>
</dependency>
<dependency>
<groupId>org.bitbucket.b_c</groupId>
<artifactId>jose4j</artifactId>
<version>0.7.0</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-compress</artifactId>
<version>1.19</version>
</dependency>
<dependency>
<groupId>org.tukaani</groupId>
<artifactId>xz</artifactId>
<version>1.8</version>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.8.5</version>
</dependency>
<dependency>
<groupId>com.github.sisyphsu</groupId>
<artifactId>dateparser</artifactId>
<version>1.0.4</version>
</dependency>
<dependency>
<groupId>nz.net.ultraq.thymeleaf</groupId>
<artifactId>thymeleaf-layout-dialect</artifactId>
<version>2.4.1</version>
</dependency>
<dependency>
<groupId>com.github.darrachequesne</groupId>
<artifactId>spring-data-jpa-datatables</artifactId>
<version>5.0.0</version>
</dependency>
<dependency>
<groupId>com.github.darrachequesne</groupId>
<artifactId>spring-data-mongodb-datatables</artifactId>
<version>1.0.3</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.19</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.mariadb.jdbc</groupId>
<artifactId>mariadb-java-client</artifactId>
<version>2.4.4</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.mongodb</groupId>
<artifactId>mongo-java-driver</artifactId>
<version>3.12.4</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.owasp.esapi</groupId>
<artifactId>esapi</artifactId>
<version>2.2.0.0</version>
</dependency>
<dependency>
<groupId>org.powermock</groupId>
<artifactId>powermock-module-junit4</artifactId>
<version>2.0.7</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.powermock</groupId>
<artifactId>powermock-api-mockito2</artifactId>
<version>2.0.7</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<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>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
It seems alright to me, but again I'm working my way through tutorials so I might've missed something important.
回答1:
Works for me if I change from:
#
# Build stage
#
FROM maven:3.5-jdk-8 AS build
COPY init-mongo.js /docker-entrypoint-initdb.d/
COPY src /app/src/
COPY pom.xml /app/
RUN mvn -f /app/pom.xml clean package
TO:
#
# Build stage
#
FROM maven:3.5-jdk-8 AS build
COPY init-mongo.js /docker-entrypoint-initdb.d/
COPY src /app/src/
COPY pom.xml /app/
WORKDIR /app
RUN mvn clean package
Main problem I saw was purely that no pom was available in the current working dir.. / (root dir).. setting the WORKDIR to the /app worked perfectly though.
来源：https://stackoverflow.com/questions/64511717/dockerfile-cant-build-app-with-maven-no-goals-specified-for-this-build