Finalize docker export capabilities

Feature description:

Finalize capabilities to export an opyrator to a Docker image.

The export can be executed via command line:

opyrator export my_opyrator:hello_world --format=docker my-opyrator-image:latest

💡 The Docker export requires that Docker is installed on your machine.

After the successful export, the Docker image can be run as shown below:

docker run -p 8080:8080 my-opyrator-image:latest

Running your Opyrator within this Docker image has the advantage that only a single port is required to be exposed. The separation between UI and API is done via URL paths: http://localhost:8080/api (API); http://localhost:8080/ui (UI). The UI is automatically configured to use the API for all function calls.

[LukasMasuch]

@dleunji the Docker export is not ready yet for release 😦 But we have prioritized this feature and will update this issue as soon as it is ready for usage.

[amitmtrn]

Hi, I want to collaborate on this issue, can you tell me if the logic for exporting the docker would be acceptable?

1. pip freeze to a requirements file
2. create docker file from python
3. copy the opyrator file and the requirements (from the freeze)
4. pip install the requirements (on the docker file)
5. opyrator launch-ui and opyrator-launch-api (2 ports open on the docker 8080 and 8051)
6. dump the docker image