Remote-exec provisioner in Terraform - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of the remote-exec provisioner in Terraform?

The remote-exec provisioner runs commands on a remote machine after it is created, allowing you to configure the machine or install software.

beginner

Which connection methods can remote-exec use to connect to the remote machine?

It can use SSH for Linux machines or WinRM for Windows machines to connect and run commands remotely.

beginner

How do you specify commands to run with remote-exec?

You specify commands inside the inline argument as a list of strings, each string is a command to run in order.

intermediate

What happens if a command in remote-exec fails during execution?

Terraform stops the provisioning process and reports an error, so you can fix the issue before continuing.

beginner

Why is it important to configure the connection block correctly when using remote-exec?

Because Terraform needs the right credentials and network access to connect to the remote machine and run commands successfully.

What does the remote-exec provisioner do in Terraform?

A Runs commands on a remote machine after creation

B Creates a remote machine

C Deletes remote resources

D Manages Terraform state files

The remote-exec provisioner runs commands on the remote machine after it is created.

Which protocol is commonly used by remote-exec to connect to Linux machines?

A WinRM

B FTP

C HTTP

D SSH

SSH is the standard protocol used to connect to Linux machines remotely.

Where do you list the commands to run in a remote-exec provisioner?

A In the provider block

B Inside the <code>connection</code> block

C Inside the <code>inline</code> block

D In the Terraform backend configuration

Commands are listed inside the inline block as a list of strings.

What must you configure to allow remote-exec to connect to the remote machine?

A The Terraform backend

B The <code>connection</code> block with credentials and host info

C The provider version

D The output variables

The connection block provides the necessary details for Terraform to connect remotely.

If a command in remote-exec fails, what does Terraform do?

A Stops and reports an error

B Ignores the error and continues

C Retries the command indefinitely

D Deletes the remote machine

Terraform stops the provisioning process and reports the error to prevent further issues.

Explain how the remote-exec provisioner works in Terraform and why it is useful.

Think about how you would set up a new computer remotely after turning it on.

Describe the role of the connection block when using remote-exec and what happens if it is misconfigured.

Imagine trying to call a friend but dialing the wrong number.