pushing docker image to dockerhub

Question

I ve created my own docker file ( that runs a shell script which prints \"helloworld\"). The image is \"hellodocker\" and the tag is \"mytag\" I now have:

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Answer 1

You either need to tag it as <myuser>/hellodocker when you build it, e g

docker build -t <myuser>/hellodocker:mytag .

or create a new tag tied to the same image, i e

docker tag hellodocker:mytag <myuser>/hellodocker:mytag

Answer 2

First go to your Docker Hub account and make the repo. Here is a screenshot of my Docker Hub account:

From the pic, you can see my repo is “chuangg”

HOW TO UPLOAD YOUR DOCKER IMAGE ONTO DOCKER HUB

Method #1= Pushing your image through the command line (cli)

1) docker commit <container ID> <repo name>/<Name you want to give the image>

Yes, I think it has to be the container ID. It probably cannot be the image ID.

For example= docker commit 99e078826312 chuangg/gene_commited_image

2) docker run -it chaung/gene_commited_image

3) docker login --username=<user username> --email=<user email address>

For example= docker login --username=chuangg --email=gc.genechaung@gmail.com

Yes, you have to login first. Logout using “docker logout”

4) docker push chuangg/gene_commited_image

Method #2= Pushing your image using pom.xml and command line.

Note, I used a Maven Profile called “build-docker”. If you don’t want to use a profile, just remove the <profiles>, <profile>, and <id>build-docker</id> elements.

Inside the parent pom.xml:

<profiles>
        <profile>
            <id>build-docker</id>
            <build>
                <plugins>
                    <plugin>
                        <groupId>io.fabric8</groupId>
                        <artifactId>docker-maven-plugin</artifactId>
                        <version>0.18.1</version>
                        <configuration>
                            <images>
                                <image>
                                    <name>chuangg/gene_project</name>
                                    <alias>${docker.container.name}</alias>
                                    <!-- Configure build settings -->
                                    <build>
                                        <dockerFileDir>${project.basedir}\src\docker\vending_machine_emulator</dockerFileDir>
                                        <assembly>
                                            <inline>
                                                <fileSets>
                                                    <fileSet>
                                                        <directory>${project.basedir}\target</directory>
                                                        <outputDirectory>.</outputDirectory>
                                                        <includes>
                                                            <include>*.jar</include>
                                                        </includes>
                                                    </fileSet>
                                                </fileSets>
                                            </inline>
                                        </assembly>
                                    </build>
                                </image>
                            </images>
                        </configuration>
                        <executions>
                            <execution>
                                <id>docker:build</id>
                                <phase>package</phase>
                                <goals>
                                    <goal>build</goal>
                                </goals>
                            </execution>
                        </executions>
                    </plugin>
                </plugins>
            </build>
        </profile>
    </profiles>

Docker Terminal Command to deploy the Docker Image (from the directory where your pom.xml is located)= mvn clean deploy -Pbuild-docker docker:push

For those of you not using a Maven Profile, the command would simply be mvn clean deploy docker:push

Note, the difference between Method #2 and #3 is that Method #3 has an extra <execution> for the deployment.

Method #3= Using Maven to automatically deploy to Docker Hub

Add this stuff to your parent pom.xml:

    <distributionManagement>
        <repository>
            <id>gene</id>
            <name>chuangg</name>
            <uniqueVersion>false</uniqueVersion>
            <layout>legacy</layout>
            <url>https://index.docker.io/v1/</url>
        </repository>
    </distributionManagement>


    <profiles>
        <profile>
            <id>build-docker</id>
            <build>
                <plugins>

                    <plugin>
                        <groupId>io.fabric8</groupId>
                        <artifactId>docker-maven-plugin</artifactId>
                        <version>0.18.1</version>
                        <configuration>
                            <images>
                                <image>
                                    <name>chuangg/gene_project1</name>
                                    <alias>${docker.container.name}</alias>
                                    <!-- Configure build settings -->
                                    <build>
                                        <dockerFileDir>${project.basedir}\src\docker\vending_machine_emulator</dockerFileDir>
                                        <assembly>
                                            <inline>
                                                <fileSets>
                                                    <fileSet>
                                                        <directory>${project.basedir}\target</directory>
                                                        <outputDirectory>.</outputDirectory>
                                                        <includes>
                                                            <include>*.jar</include>
                                                        </includes>
                                                    </fileSet>
                                                </fileSets>
                                            </inline>
                                        </assembly>
                                    </build>
                                </image>
                            </images>
                        </configuration>
                        <executions>
                            <execution>
                                <id>docker:build</id>
                                <phase>package</phase>
                                <goals>
                                    <goal>build</goal>
                                </goals>
                            </execution>
                            <execution>
                                <id>docker:push</id>
                                <phase>install</phase>
                                <goals>
                                    <goal>push</goal>
                                </goals>
                            </execution>

                        </executions>
                    </plugin>
                </plugins>
            </build>
        </profile>
    </profiles>
</project>

Go to C:\Users\Gene.docker\ directory and add this to your config.json file:

Now in your Docker Quickstart Terminal type= mvn clean install -Pbuild-docker

For those of you not using a Profile, just type mvn clean install

Here is a screenshot of what it will look like if it works:

Here is my full pom.xml and a screenshot of my directory structure:

<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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>

<groupId>com.gene.app</groupId>
<artifactId>VendingMachineDockerMavenPlugin</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>

<name>Maven Quick Start Archetype</name>
<url>www.gene.com</url>

<build>
    <pluginManagement>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <configuration>
                    <archive>
                        <manifest>
                            <mainClass>com.gene.sample.Customer_View</mainClass>
                        </manifest>
                    </archive>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.1</version>
                <configuration>

                    <source>1.7</source>
                    <target>1.7</target>

                </configuration>
            </plugin>
        </plugins>
    </pluginManagement>
</build>


<dependencies>
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.8.2</version>
        <scope>test</scope>
    </dependency>

</dependencies>

<distributionManagement>
    <repository>
        <id>gene</id>
        <name>chuangg</name>
        <uniqueVersion>false</uniqueVersion>
        <layout>legacy</layout>
        <url>https://index.docker.io/v1/</url>
    </repository>
</distributionManagement>


<profiles>
    <profile>
        <id>build-docker</id>
        <properties>
            <java.docker.version>1.8.0</java.docker.version>
        </properties>
        <build>
            <plugins>

                <plugin>
                    <groupId>io.fabric8</groupId>
                    <artifactId>docker-maven-plugin</artifactId>
                    <version>0.18.1</version>
                    <configuration>
                        <images>
                            <image>
                                <name>chuangg/gene_project1</name>
                                <alias>${docker.container.name}</alias>
                                <!-- Configure build settings -->
                                <build>
                                    <dockerFileDir>${project.basedir}\src\docker\vending_machine_emulator</dockerFileDir>
                                    <assembly>
                                        <inline>
                                            <fileSets>
                                                <fileSet>
                                                    <directory>${project.basedir}\target</directory>
                                                    <outputDirectory>.</outputDirectory>
                                                    <includes>
                                                        <include>*.jar</include>
                                                    </includes>
                                                </fileSet>
                                            </fileSets>
                                        </inline>
                                    </assembly>
                                </build>
                            </image>
                        </images>
                    </configuration>
                    <executions>
                        <execution>
                            <id>docker:build</id>
                            <phase>package</phase>
                            <goals>
                                <goal>build</goal>
                            </goals>
                        </execution>
                        <execution>
                            <id>docker:push</id>
                            <phase>install</phase>
                            <goals>
                                <goal>push</goal>
                            </goals>
                        </execution>

                    </executions>
                </plugin>
            </plugins>
        </build>
    </profile>
</profiles>

Here is my Eclipse Directory:

Here is my Dockerfile:

FROM java:8

MAINTAINER Gene Chuang
RUN echo Running Dockerfile in src/docker/vending_machine_emulator/Dockerfile directory

ADD maven/VendingMachineDockerMavenPlugin-1.0-SNAPSHOT.jar /bullshitDirectory/gene-app-1.0-SNAPSHOT.jar 

CMD ["java", "-classpath", "/bullshitDirectory/gene-app-1.0-SNAPSHOT.jar", "com/gene/sample/Customer_View" ] 

Common Error #1:

Solution for Error #1= Do not sync the <execution> with maven deploy phase because then maven tries to deploy the image 2x and puts a timestamp on the jar. That’s why I used <phase>install</phase>.

Answer 3

If you want hellodocker repository under myuserid namespace, you have to first tag your local hellodocker to myuseridlike:

docker tag hellodocker myuserid/hellodocker

And then push this myuserid/hellodocker repository to hub like:

docker push myuserid/hellodocker