Update README.md

hyperv/terraform/README.md

@@ -5,13 +5,15 @@ activated and tools like Packer, Vagrant and Docker CLI installed.
 
 Now you are able to build Vagrant base boxes for HyperV in the Cloud with Packer.
 
-## Install Terraform
+## Stage 1: Spin up the Azure VM with Terraform
+
+### Install Terraform
 
 ```
 brew install terraform
 ```
 
-## Secrets
+### Secrets
 
 Get your Azure ID's and secret with `pass`
 
@@ -28,29 +30,53 @@ export ARM_CLIENT_SECRET="secret"
 export ARM_TENANT_ID="uuid"
 ```
 
-## Configure
+### Configure
 
 Adjust the file `variables.tf` to your needs to choose
 
 - location / region
 - DNS prefix and suffix
-- size of the VM's, default is `Standard_D2_v3`
+- size of the VM's, default is `Standard_D2_v3` which is needed for nested virtualization
 - username and password
 
-## Plan
+### Plan
 
 ```bash
 terraform plan
 ```
 
-## Create / Apply
+### Create / Apply
+
+Create the Azure VM with. After 5 minutes the VM should be up and running, and the provision.ps1 script will run inside the VM to install Packer, Vagrant, HyperV and then reboots the VM.
 
 ```bash
 terraform apply
 ```
 
-## Destroy
+## Stage 2: Packer build
+
+Now RDP into the Azure VM. Open a PowerShell terminal and clone my packer-windows repo or any other repo with a Packer template for HyperV.
+
+```
+git clone https://github.com/StefanScherer/packer-windows
+mkdir D:\packer_cache
+$env:PACKER_CACHE="D:\packer_cache"
+cd packer-windows
+packer build --only=hyperv-iso --var hyperv_switchname=ext windows_2016_docker.json
+```
+
+Packer creates an external Hyper-V virtual switch with name "ext". It downloads the eval ISO file and boots a Hyper-V VM to run the whole packer build configuration.
+
+You could also try to run it in this Azure VM with
 
-```bash
-terraform destroy
 ```
+vagrant box add windows_2016_docker windows_2016_docker_hyperv.box
+cd ..
+git clone https://github.com/StefanScherer/docker-windows-box
+cd docker-windows-box
+vagrant up
+```
+
+### packer push
+
+Now you can push the Vagrant box to Vagrant Cloud (https://app.vagrantup.com).