How does local-exec Provisioner work in Terraform?

How does local-exec Provisioner work in Terraform?

The local-exec provisioner invokes a local executable after a resource is created. This invokes a process on the machine running the Terraform, not on the resource. You can see the remote-exec provisioned to run commands on the resource.

How do you use Terraform Provisioner?

Provisioners are used to execute scripts on a local or remote machine as part of resource creation or destruction. Provisioners can be used to bootstrap a resource, cleanup before destroy, run configuration management, etc.

How do I always run local-exec with Terraform?

So, how can you make sure to invalidate state for the null resource, so it always runs the local-exec script. Using timestamp. The following example always builds a docker image locally, when running both terraform apply generically to the *. tf file, or when targeting the resource directly.

Which Provisioner should you use to run a command on the Terraform server during deployment?

local-exec provisioner helps run a script on instance where we are running our terraform code, not on the resource we are creating. For example, if we want to write EC2 instance IP address to a file, then we can use below local-exec provisioner with our EC2 resource and save it locally in a file.

How does Terraform remote-exec work?

The remote-exec provisioner invokes a script on a remote resource after it is created. This can be used to run a configuration management tool, bootstrap into a cluster, etc. To invoke a local process, see the local-exec provisioner instead. The remote-exec provisioner supports both ssh and winrm type connections.

Can Terraform run commands?

Try running “terraform plan” to see any changes that are required for your infrastructure. All Terraform commands should now work. If you ever set or change modules or backend configuration for Terraform, rerun this command to reinitialize your working directory.

What is the difference between Provisioner and provider?

As nouns the difference between provisioner and provider is that provisioner is one who supplies provisions while provider is one who, or that which, provides a service, commodity, or the means for subsistence.

What is the remote-exec Provisioner in Terraform?

When should I run terraform init?

The terraform init command is used to initialize a working directory containing Terraform configuration files. This is the first command that should be run after writing a new Terraform configuration or cloning an existing one from version control. It is safe to run this command multiple times.

How to use remote Exec in TerraForm resource provisioner?

This example demonstrates how to use a connection construct for remote exec. Terraform uses a number of defaults when connecting to a resource, but these can be overridden using a connection block in either a resource or provisioner.

What can remote exec provisioner be used for?

The remote-exec provisioner invokes a script on a remote resource after it is created. This can be used to run a configuration management tool, bootstrap into a cluster, etc. To invoke a local process, see the local-exec provisioner instead.

How to use self.private _ IP in TerraForm?

The above example uses self.private_ip, which will work only if the host where you are running Terraform is running in or able to connect to the VPC where you’re deploying this instance.

Do you need a public IP to use remote exec?

You can also use this technique for other provisioners that require access to the remote resource. The location where the script is remotely executed must be an Oracle Cloud Infrastructure resource that has a public IP and supports remote login.