Plan output reading in Terraform - Cheat Sheet & Quick Revision

Recall & Review

beginner

What does the 'terraform plan' command do?

It shows what changes Terraform will make to your infrastructure without applying them. Think of it like a preview before you make changes.

beginner

What information can you find in the output of 'terraform plan'?

You can see which resources will be added, changed, or destroyed. It tells you exactly what Terraform plans to do.

beginner

In Terraform plan output, what does a line starting with '+' mean?

It means a resource will be created (added). The '+' sign shows new resources.

beginner

What does a line starting with '-' indicate in Terraform plan output?

It means a resource will be destroyed (removed). The '-' sign shows resources that will be deleted.

beginner

Why is reading the Terraform plan output important before applying changes?

Because it helps you avoid mistakes by showing what will happen. You can catch unwanted deletions or changes before they happen.

What does the '+' symbol mean in Terraform plan output?

A No change to resource

B Resource will be destroyed

C Resource will be updated

D Resource will be created

The '+' sign means Terraform plans to add a new resource.

Which command shows the planned changes without applying them?

A terraform plan

B terraform init

C terraform destroy

D terraform apply

'terraform plan' previews changes without making them.

If you see a '-' sign next to a resource in the plan output, what does it mean?

A Resource will be unchanged

B Resource will be created

C Resource will be destroyed

D Resource will be renamed

The '-' sign means the resource will be deleted.

Why should you always read the plan output before applying?

A To check for syntax errors

B To preview changes and avoid mistakes

C To speed up deployment

D To update Terraform version

Reading the plan helps catch unwanted changes before applying.

What does Terraform show if a resource will be changed but not created or destroyed?

A ~

B -

C +

D !

The '~' symbol means the resource will be updated or changed.

Explain how to interpret the symbols '+' , '-' , and '~' in Terraform plan output.

Think of these symbols as signs showing what Terraform will do to each resource.

Describe why it is important to review the Terraform plan output before running 'terraform apply'.

It's like checking your work before pressing 'send' or 'submit'.