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In this guide we will show you how to create a Docker container for Odysseus. Such a container can help you to run and share Odysseus more easily. If you want to user use our predefined Odysseus Server Docker ContainerImage, see Run with Docker.

Step-by-step guide

We assume that you have a Linux system up and running, e.g. Ubuntu. If you want to try it out without changing your system or if you don't have a Linux machine, we recommend VirtualBox.

Installing Docker

1. Open a Terminal window.
2.  Type "docker"
3. If Docker is already installed, a help page with common Docker options and commands will show up.
4. If not, your Terminal will probably give you a hint how to install Docker. Under Ubuntu, it is "sudo apt-get install docker.io"

Preparing the Folder

Now we need a folder where we can put everything that we need in.

...

tobi@tobi-VirtualBox:~$ ls
Desktop  Documents  Downloads  examples.desktop  Music  Pictures  Public  Templates  Videos
tobi@tobi-VirtualBox:~$ cd Documents/
tobi@tobi-VirtualBox:~/Documents$ ls
tobi@tobi-VirtualBox:~/Documents$ mkdir odysseusdocker
tobi@tobi-VirtualBox:~/Documents$ ls
odysseusdocker
tobi@tobi-VirtualBox:~/Documents$ cd odysseusdocker/
tobi@tobi-VirtualBox:~/Documents/odysseusdocker$ mkdir odysseus

...

Create a docker image

Currently, we provide docker only for linux X86_64 based systems. The images can be used for Linux and Windows (we did not make any tests with MacOS)

If you want to create you own docker image, you can use the following dockerfile as a starting point:

https://git.swl

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.informatik.uni-oldenburg.de

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/projects/ODYJENK/repos/odysseus_all_new/browse/Dockerfile

Please have a look at the official docker documentation for further information about docker.

Szenario: Local Update site and other features should be installed into a docker image

Here:

• The base odysseus images is used as base image
• An own update site (e.g.

...

• created with maven) is copied to the image
• The database feature is installed from the stable update site
• From the own file based update site the sample feature is installed

FROM odysseusol/odysseus
ADD ./de.uniol.inf.is.odysseus.sample.feature.update /de.uniol.inf.is.odysseus.sample.feature.update
RUN /usr/lib/odysseus/odysseus -application org.eclipse.equinox.p2.director -repository https://odysseus.informatik.uni-oldenburg.de/updatesite/odysseus_all_new/stable/origin/master/latest/ -installIU de.uniol.inf.is.odysseus.database.feature.feature.group -destination /usr/lib/odysseus -profile DefaultProfile;
RUN /usr/lib/odysseus/odysseus -application org.eclipse.equinox.p2.director -repository file:///de.uniol.inf.is.odysseus.sample.feature.update -installIU de.uniol.inf.is.odysseus.sample.feature.feature.group -destination /usr/lib/odysseus -profile DefaultProfile;
EXPOSE 8888
CMD ["/usr/lib/odysseus/odysseus","-console -debug -data @noDefault"]

Hint: To get the names of the installable units 

• look at the update-site folders in the features folder
• take the full name of the feature.jar until the "_", e.g. : de.uniol.inf.is.odysseus.database.feature_1.0.0.202111142343.jar  → de.uniol.inf.is.odysseus.database.feature
• append .feature.group

...

#!/bin/sh
cd home
cd odysseus
echo "Starting Odysseus ..."
./odysseus

1. Now we want to create the Dockerfile which describes our Docker container
2. Create a new file called "Dockerfile" within our "odysseusdocker"-folder (e.g. with nano again or what ever you prefer)
3. Put the content from the box below into the Dockerfile

 # We will use Ubuntu as our basis
FROM ubuntu:15.10
 
# We need Java 8 - install Java 8 on that Ubuntu machine
RUN apt-get update
RUN apt-get install software-properties-common -y
RUN add-apt-repository ppa:webupd8team/java -y
RUN apt-get update
RUN echo debconf shared/accepted-oracle-license-v1-1 select true | debconf-set-selections
RUN apt-get install oracle-java8-installer -y
RUN apt-get install oracle-java8-set-default
 
# Add java to environment variables
ENV JAVA_HOME /usr/lib/jvm/java-8-oracle
 
# Start Odysseus on startup of the container
ADD startup.sh /home/startup.sh
ADD odysseus /home/odysseus
CMD ./home/startup.sh
 
# We need a port to be exposed - this is the port for the WebService from Odysseus
EXPOSE 9669

Now we have everything prepared in that folder.

Build and run the Docker container

1. In your Terminal window, navigate to the "odysseusdocker"-folder
2. Type "sudo docker build ." (The " ." refers to the folder we are in. The command assumes a file named "Dockerfile" in that folder.)
3. Wait (it will take some time to get the basis for our container: Ubuntu and Java 8. But next time you do it it's much faster.)
4. Now we should see a message that the container was successfully build. We can type "sudo docker images" to see our images.

Successfully built 36d0ac65435c
tobi@tobi-VirtualBox:~/Documents/odysseusdocker$ sudo docker images
REPOSITORY          TAG                 IMAGE ID            CREATED              VIRTUAL SIZE
<none>              <none>              36d0ac65435c        About a minute ago   950.6 MB
ubuntu              15.10               6ed4652370be        27 hours ago         136.1 MB
tobi@tobi-VirtualBox:~/Documents/odysseusdocker$ 

Now we can run the Docker container:

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