Graphical User Interface

If desired, a graphical user interface is also provided when the application has been installed from source. This can provide a convenient wrapper that enables users to perform validations without using extensive command-line usage.

At this time the application can only be run from source, but in the future a packaged version may be provided.

How to Start the Application

  1. Ensure you have installed the application and its dependencies from source as described in the Installation chapter

  2. Navigate to the ice_validator directory:

    > cd <vvp-directory>/ice_validator
  3. Launch the gui using the command:

    > python

How to Use the Tool


The look-and-feel of the application will vary slightly depending on the Operating System of the host machine. The screenshot below is how the application looks on a Windows machine.

Sample Screenshot of VVP GUI Application


All configuration options available to the command-line version of the application are exposed as options on the left-hand side of the GUI.

Additional Validation Categories

This allows the base set of tests to be extended by selecting additional categories of tests. At this time, only one additional category is supported.

This maps to the --category command-line option.

Category Description
Environment File Compliance When selected, VVP will flag parameters in environment files that should be excluded per the ONAP Heat requirements. De-selecting this can be useful when when testing instantiation directly in OpenStack without ONAP orchestration. This is equivalent to specifying --category=environment_file from the command-line.


Verbosity - Controls the level of comparison output displayed in the underlying pytest validation output. Default maps to pytest -v level of verbosity.

Report Format - Controls the format of the output report generated after validation. The options are: HTML (the default), Excel, and CSV. This is equivalent the --report-format command-line option with the exception, that the JSON format is not supported via the GUI.

Input Format - Controls the expected format of the template files. This can either be a ZIP file containing the Heat templates or a directory containing the Heat templates. There is no ZIP file option for the command-line script at this time.

Halt on Basic Failures - VVP deems certain tests as “base tests” which if failed have the potential to generate a large number of other errors. This would include tests such as validating that the Heat templates are valid YAML. If checked, the tool will immediately stop all other tests and show a report of this single failure. This can be useful in reducing the number of errors to sift through in these situations. De-selecting this option is the equivalent of specifying --continue-on-failure as a command-line option.

Running Validations

  1. Select the desired input format in the settings (ZIP or Directory)
  2. Select the […] button next to the Template Location input box
  3. Select the directory or ZIP file containing the Heat templates, and then click Open
  4. Once the input is selected, select the “Validate Templates” button to start the validation process. The white box to the right will display output as the validations are executed.
  5. Once validation is complete a summary of pass and fail will be written to the output window, and a “View Report” option will appear on the left-hand control panel.
  6. Select the “View Report” option, and the report will be opened in the the appropriate application based on report format.
  7. If you have questions about report output, please refer to the Validation Report reference material for more information.