通过 Jenkins SCM 构建和运行 Docker 映像（Jenkinsfile 与代码一起推送到 repo），Jenkins 本身在 docker 中运行，使用 dockerfile

Question

我正在尝试通过 Jenkins 为我的 Spring Boot 应用程序构建一个动态容器系统。为此，我通过 docker 运行 Jenkins，并设置了一个项目，该项目将从我的存储库中获取代码并读取 jenkins 文件。

该项目有 Dockerfile 和 Jenkins 文件，所以在读取之后，jenkins 会读取 jenkinsfile，然后再读取 dockerfile 并构建和运行，或者流程应该如此。我的应用程序的构建已创建，但是我在 docker 映像的运行部分遇到了问题。

我通过以下命令运行 jenkins：

docker run -d -v jenkins_home:/var/jenkins_home -v /var/run/docker.sock:/var/run/docker.sock -v $(which docker):/usr/bin/docker --name jenkinsHome  -p 8089:8080 -p 50000:50000 jenkins/jenkins:lts

这是我制作的dockerfile内容

# Start with a base image containing Java runtime
FROM gradle:5.0.0-jdk8-alpine as builder
COPY --chown=gradle:gradle . /home/gradle/src
WORKDIR /home/gradle/src
RUN gradle build


# Add Maintainer Info
LABEL maintainer="teckacademy@gmail.com"

# Add a volume pointing to /tmp
VOLUME /tmp

# Make port 8080 available to the world outside this container
FROM openjdk:8-jdk-alpine
EXPOSE 8081
COPY --from=builder /home/gradle/src/build/libs/*.jar /app/
#COPY --from=builder /home/gradle/src/build/libs/*.jar /app/app.jar
RUN ls -r /app
#RUN mkdir -p /app
# The application's jar file
#ARG JAR_FILE=/app/build/libs/aggregator-0.1-SNAPSHOT.jar
ARG PROPERTIES=src/main/resources/application.properties
#ARG PROPERTIES_DEV=src/main/resources/application-dev.properties
ARG PROPERTIES_DEV_YML=src/main/resources/application-qa.yml
ARG PROPERTIES_YML=src/main/resources/application.yml
ARG LOG=logback.xml

# Add the application's jar to the container
#ADD ${JAR_FILE} /app/app.jar
ADD ${PROPERTIES} /app/application.properties
ADD ${PROPERTIES_YML} /app/application.yml
ADD ${PROPERTIES_DEV_YML} /app/application-qa.yml
ADD ${LOG} /app/logback.xml

#RUN apk update
#RUN apk add --update mysql mysql-client && rm -f /var/cache/apk/*
#RUN apk add libmysql-java

#RUN bash -c 'touch /app.jar'
# Run the jar file
#ENTRYPOINT ["java","-    Dspring.config.location=./application.properties", "-jar","/app.jar"]
ENTRYPOINT ["java" ,"-Djava.security.egd=file:/dev/./urandom -    Dspring.profile.active=dev","-jar","/app/reppy-aggregator-dev-0.1-    SNAPSHOT.jar"]
#RUN sh docker stop aggregator-dev
#RUN sh docker build -t aggregator-dev .
#RUN sh docker run -d -p 8081:8081 --name aggregator-dev aggregator-    dev
#RUN sh 'java -jar -Dspring.profile.active=dev /app/app.jar &'
#ENV JAVA_OPTS=""
#ENTRYPOINT [ "sh", "-c", "java $JAVA_OPTS -        Djava.security.egd=file:/dev/./urandom -jar /app.jar" ]

请忽略散列线，我保留它们以显示我在此流程中还尝试了什么。

我拥有的詹金斯文件有以下代码：

pipeline {
agent {
    dockerfile true
    // args '-d -p 8081:8081'
}
stages {
    stage("Checkout") {
        steps {
            // git url: 'https://github.com/mrityush/reppy-aggregator.git', credentialsId: 'tecklabs', branch: 'qa'
            git url: 'https://github.com/mrityush/reppy-aggregator.git', credentialsId: '65b349b7-b6eb-4073-b4d1-194912ccc5b3', branch: 'qa'
        }
    }
    stage('Build image') {
        steps {
            script{
                docker.build aggregator-dev
            }
        }
    }
}
}

我需要通过 jenkinsfile 和 dockerfile 对以下 2 个命令进行等效语句：

docker build -t aggregator-dev .
docker run -d -p 8081:8081 aggregator-dev

但我不确定如何在这两个文件中的任何一个中执行此操作

以下错误是我在 jenkins 构建期间始终收到的错误，无论我尝试哪种组合。

Step 19/19 : ENTRYPOINT ["java" ,"-    Djava.security.egd=file:/dev/./urandom -Dspring.profile.active=dev","-    jar","/app/reppy-aggregator-dev-0.1-SNAPSHOT.jar"]
 ---> Running in df4ac65aad14
Removing intermediate container df4ac65aad14
 ---> 397efd233dff
Successfully built 397efd233dff
Successfully tagged     fe5ea528d5e52cbde8d07a84eb2f351d11de9c94:latest
[Pipeline] dockerFingerprintFrom
[Pipeline] }
[Pipeline] // stage
[Pipeline] sh
+ docker inspect -f . fe5ea528d5e52cbde8d07a84eb2f351d11de9c94
.
[Pipeline] withDockerContainer
Jenkins seems to be running inside container     b278ec9f6f776a9371dc8772e9ca2e1effe89ccba51601c95bd22b5819502074
$ docker run -t -d -u 1000:1000 -w     /var/jenkins_home/workspace/reppy-aggregator-dev --volumes-from     b278ec9f6f776a9371dc8772e9ca2e1effe89ccba51601c95bd22b5819502074 -e     ******** -e ******** -e ******** -e ******** -e ******** -e ******** -    e ******** -e ******** -e ******** -e ******** -e ******** -e ********     -e ******** -e ******** -e ******** -e ******** -e ******** -e     ******** -e ******** -e ******** -e ******** -e ******** -e ******** -    e ******** -e ******** -e ********     fe5ea528d5e52cbde8d07a84eb2f351d11de9c94 cat
$ docker top     fdad8c11f9d1a627bacffd90eded3e0e87a1c32612a9edaeb3c8b6237cae83ba -eo     pid,comm
ERROR: The container started but didn't run the expected command.     Please double check your ENTRYPOINT does execute the command passed as     docker run argument, as required by official docker images (see     https://github.com/docker-library/official-images#consistency for     entrypoint consistency requirements).
Alternatively you can force image entrypoint to be disabled by     adding option `--entrypoint=''`.

请告诉我如何解决这个 docker build run（通过容器中的 jenkins）问题。谢谢。

Answer 1

当您使用 Dockerfile 作为代理时，会自动为您构建映像。您只需在步骤中执行所需的命令即可。

pipeline {
 agent {
  dockerfile true
 }
 stages {
  stage('Use image') {
    steps {
        script{
            sh "uname -a"
        }
    }
  }
 }
}

上述管道构建映像并为我提供操作系统详细信息。存储库链接在这里https://github.com/rkamath3/ubuntu.git