Terraform Cheatsheet

To implement infrastructure as code with different cloud providers, terraform comes with commands that take subcommands such as "apply" or "plan" to do its job. Below is the complete list of subcommands

Terraform workspaces in more detail -

Terraform workspaces are a feature that allows you to manage multiple distinct sets of Terraform state files within a single Terraform configuration.

Workspaces are useful when you need to maintain multiple copies of the same infrastructure for different purposes, such as development, testing, staging, and production, without duplicating your configuration files.

When you work with Terraform workspaces, each workspace has its own state file, which means that you can have different resource instances or configurations for each workspace.

This separation helps prevent accidental changes to the wrong environments and makes it easier to manage complex deployments.

Terraform starts with a single, default workspace named `default` that you cannot delete. If you have not created a new workspace, you are using the default workspace in your Terraform working directory.

Few commands to work on workspaces -

List workspaces:

$ terraform workspace list  
 * default

Create a workspace:

$ terraform workspace new dev
 Created and switched to workspace "dev"!

You're now on a new, empty workspace. Workspaces isolate their state,

so if you run "terraform plan" Terraform will not see any existing state

for this configuration.

$ terraform workspace new staging
 Created and switched to workspace "staging"!

You're now on a new, empty workspace. Workspaces isolate their state,

so if you run "terraform plan" Terraform will not see any existing state

for this configuration.

To check the current workspace, use the `terraform workspace show` command.

$ terraform workspace show
staging

Select a Workspace:
To switch b/w workspaces

$ terraform workspace list
  default
  dev
* staging 

$ terraform workspace select dev
 Switched to workspace "dev".

$ terraform workspace show
 dev

Destroy Resources per workspace:
$ terraform workspace delete dev