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Depends on how you do it, technically, sure, you can execute any code you like, including ssh / winrm into a new VM. AWS and Azure also have ways to execute code (user data / Custom Script Extension) when VMs come up.
The latter would be the preferred and more managed way.

<@U011FC5P146> AWS for example can use the `userData` on an instance to support the `cloud-init` mechanism for instance initialization. Terraform has a resource for userdata customization that I found pretty handy (<https://www.terraform.io/docs/providers/template/d/cloudinit_config.html>) but you can also craft your own string and set the `userData` field directly from that.  In case you're on AWS, here's the docs for cloud-init on ec2: <https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/user-data.html#user-data-cloud-init>

Thanks guys. I was hoping I could get similar functionality to Ansible but in javascript.

that's essentially what I use these `cloud-init` yamls for, so you're in the right space. the string you'd end up setting would be a cloud-init yaml, which then would get run on instance standup. I've been using this for a few months now and been very happy to remove ansible from my instance configurations :smile:

Cloud init and user data are two things though. Former doesn't work on Windows.

yeah, good point. I always forget about windows :slightly_smiling_face:

<@U011FC5P146> there is a way to do this in Pulumi

there is an example here <https://github.com/pulumi/examples/tree/master/aws-ts-ec2-provisioners>

it shows how to write code to connect to the VM and "provision" it

it's not a built in mechanism to Pulumi, it's just using the power of the language ecosystem you are writing on

You can also use Packer to create aws AMI or VM image. This way you can spin up your instances faster if init code is complex and takes time to execute. And that works for Windows, except you have to script init in powershell (although choco works like a charm for installing packages).