Azure ARM模板部署是事务性的吗？

Question

Lets say I'm deploying an Azure VM by scripting which requires multiple resources interdependent on one another.

Lets say a NIC fails,

1. Does the deployment script still go through to the deployment of the VM? So that I have a VM with no NIC
2. Does it fail rolling back the entire script?

Answer 1

No ARM templates are not executed within a transaction.

1. It's possible that you have deployed resources without deploying the whole ARM template. In your case it's not possible to have a VM without a NIC (But you test the deployment of the ARM template and make it work at the end.)
2. It does not roll back.

Answer 2

I think now they have added "--rollback-on-error" flag to rollback on last successful deployment if the deployment fails. Also you can specify the name of the deployment to which you need to roll back refer this: https://docs.microsoft.com/en-us/cli/azure/group/deployment?view=azure-cli-latest#commands .