Spring boot with docker unable to find valid certification path to requested target error

Question

I\'m using spring boot and am trying to set it up with Docker. I\'ve tried everything I could find on google and nothing seems to get me going. I\'

Answer 1

fixed this in windows 10 by:

        <plugin>
            <groupId>com.spotify</groupId>
            <artifactId>docker-maven-plugin</artifactId>
            <version>0.4.13</version>
            <configuration>
                <imageName>yourImageName</imageName>
                <dockerDirectory>src/main/docker</dockerDirectory>
                <dockerHost>https://192.168.99.100:2376</dockerHost>
                <dockerCertPath>/Users/your_user/.docker/machine/machines/default</dockerCertPath>
                <resources>
                    <resource>
                        <targetPath>/</targetPath>
                        <directory>${project.build.directory}</directory>
                        <include>${project.build.finalName}.jar</include>
                    </resource>
                </resources>
            </configuration>
        </plugin>

Important are these two tags:

<dockerHost>https://192.168.99.100:2376</dockerHost>
<dockerCertPath>/Users/your_user/.docker/machine/machines/default</dockerCertPath>

I am using a dockerfile, which path you have to define with this tag:

<dockerDirectory>src/main/docker</dockerDirectory>  

Now you can build your jar and generate docker image via:

mvn package docker:build

I think on mac just follwing value has to be different:

<dockerCertPath>/Users/your_user/.docker/machine/machines/default</dockerCertPath>

Answer 2

I ended up building the docker image by myself without the plugin:

docker build -f Dockefile .

And my Dockefile (has been renamed):

FROM java:8-jdk
EXPOSE 8080
#VOLUME /tmp

ADD target/app-0.0.1-SNAPSHOT.jar /opt/demo/app-0.0.1-SNAPSHOT.jar
CMD ["java","-jar","/opt/demo/app-0.0.1-SNAPSHOT.jar"]

I then run it like so:

 docker run <container id here>

I just couldn't get the mvn plugin to work!

Edit

Furthermore I ended up creating a docker-compose.yml which makes things a lot simpler!!!

You define properties such as the ports you want open, dockerfile location, and run docker-compose, and it'll magically build+run the docker image!

Example docker-compose.yml that I'm using:

version: '2'
services:
  web:
    build: .
    ports:
     - "8080:8080"

build references the Dockerfile location. *Note you may need to the Dockerfile+yml file to be in the same location!

ports reference the ports I want open. Now I can goto localhost:8080 and my request will be forwarded to the docker container.

Read more on docker container here:

https://docs.docker.com/compose/gettingstarted/