Yes, you can use Vagrant to run integration tests for your infrastructure code without hitting real cloud servers. Vagrant allows you to create and manage virtual machines on your local machine, enabling you to test your infrastructure code in an isolated environment.
To use Vagrant for integration tests with Pulumi or Ansible:
Install Vagrant and a supported virtualization provider (e.g., VirtualBox) on your machine.
Create a Vagrantfile in your project directory, and configure it to set up the virtual machine(s) you need for testing. You can specify the base image, networking, and other settings in the Vagrantfile.
Use Vagrant commands like vagrant up and vagrant ssh to start and interact with the virtual machines.
Modify your Pulumi or Ansible configuration to target the Vagrant-created virtual machines instead of real cloud servers. This may involve adjusting IP addresses, hostnames, SSH keys, and other settings.
Run your integration tests against the Vagrant-created virtual machines.
Using Vagrant for integration tests can help you reduce costs and improve test execution speed since you're not interacting with real cloud servers. However, it's important to note that there may be differences between a Vagrant-created environment and a real cloud environment, so testing on actual cloud servers is still valuable for ensuring your infrastructure works as expected in production.