If `VMImage` is not provided while `DeployAsVM` is on, it will default the Docker image to be `DefaultVMImage`.

## Scenario 2: Supporting Additional OS Images

We list the supported OSes in [vm_test.go](https://github.com/istio/istio/blob/master/tests/integration/pilot/vm_test.go)

# Istio Integration Tests

This folder contains Istio integration tests that use the test framework checked in at
[istio.io/istio/pkg/test/framework](https://github.com/istio/istio/tree/master/pkg/test/framework).

## Table of Contents

1. [Overview](#overview)
1. [Writing Tests](#writing-tests)
    1. [Adding a Test Suite](#adding-a-test-suite)
    1. [Sub-Tests](#sub-tests)
    1. [Parallel Tests](#parallel-tests)