terraform to create Azure linux Virtual Machine

Examples for the Virtual Machine resources

Reference

• https://github.com/hashicorp/terraform-provider-azurerm/tree/main/examples/virtual-machines

• https://learn.microsoft.com/en-us/azure/virtual-machines/linux/quick-create-terraform

• https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/virtual_machine

• https://gmusumeci.medium.com/how-to-deploy-a-centos-linux-vm-in-azure-using-terraform-64d972008282

install azure cli

https://learn.microsoft.com/zh-cn/cli/azure/install-azure-cli

install terraform

https://developer.hashicorp.com/terraform/downloads

Get started

[root@srv1 azure-vm]# cat output.tf
output "resource_group_name" {
  value = azurerm_resource_group.main.name
}
output "computer_name" {
  value = azurerm_linux_virtual_machine.main.computer_name
}
output "admin_username" {
  value = azurerm_linux_virtual_machine.main.admin_username
}
output "public_ip_address" {
  value = azurerm_linux_virtual_machine.main.public_ip_address
}

Need to Know

make sure you have ssh key created on local machine

[root@srv1 ~]# ssh-keygen

We have defined public_key in main.tf file, when linux vm craeted we have to use ssh-key to login

 admin_ssh_key {
    username   = "adminuser"
    public_key = file("~/.ssh/id_rsa.pub")
  }

[root@srv1 azure-vm]# tree
.
├── main.tf
├── output.tf
├── plan.maintf
├── README.md
├── terraform.tfstate
├── terraform.tfstate.backup
└── variables.tf

[root@srv1 azure-vm]# terraform validate
Success! The configuration is valid.
[root@srv1 azure-vm]# terraform fmt
[root@srv1 azure-vm]# terraform init
[root@srv1 azure-vm]# terraform plan -out main.plantf
[root@srv1 azure-vm]#  terraform apply main.tfplan
...
Apply complete! Resources: 8 added, 0 changed, 0 destroyed.

Outputs:

admin_username = "adminuser"
computer_name = "azvmlab-vm"
public_ip_address = "20.205.35.219"
[root@srv1 ~]# az vm list --resource-group azvmlab-resources --show-details -o table
Name        ResourceGroup      PowerState    PublicIps      Fqdns    Location    Zones
----------  -----------------  ------------  -------------  -------  ----------  -------
azvmlab-vm  azvmlab-resources  VM running    20.205.35.219           eastasia
[root@srv1 azure-vm]# ssh [email protected]
The authenticity of host '20.205.35.219 (20.205.35.219)' can't be established.
ECDSA key fingerprint is SHA256:6DA/ljluFG5cYpgxuDrutNGDsA7SwPPyRzZ2S1ewrpY.
ECDSA key fingerprint is MD5:46:67:ff:6c:87:53:30:d1:ae:67:a3:39:5f:00:bf:3b.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '20.205.35.219' (ECDSA) to the list of known hosts.

Thank you for choosing this Microsoft sponsored CentOS image from OpenLogic!
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                         | |__|  __/ | | | |_| |_| |___) |   / / \__, |
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While OpenLogic support is not including with this image, OpenLogic does
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[adminuser@azvmlab-vm ~]$ hostnamectl
   Static hostname: azvmlab-vm
         Icon name: computer-vm
           Chassis: vm
        Machine ID: ee6f639ed7044de08fbcaa46cf045b35
           Boot ID: 2dce38ac9edd44db9107e451b054a7a6
    Virtualization: microsoft
  Operating System: CentOS Linux 7 (Core)
       CPE OS Name: cpe:/o:centos:centos:7
            Kernel: Linux 3.10.0-1160.76.1.el7.x86_64
      Architecture: x86-64

clean up

[root@srv1 azure-vm]#  terraform plan -destroy -out main.destroy.tfplan
[root@srv1 azure-vm]#  terraform apply main.destroy.tfplan
...
Apply complete! Resources: 0 added, 0 changed, 8 destroyed.