CLI-driven Workflow

With the CLI integration, you can use Terrakube’s collaboration features in the Terraform CLI workflow that you are already familiar with. This gives you the best of both worlds as a developer who uses the Terraform CLI, and it also works well with your existing CI/CD pipelines.

You can initiate runs with the usual terraform plan and terraform apply commands and then monitor the run progress from your terminal. These runs run remotely in Terrakube.

Terrakube creates default templates for CLI-Driven workflow when you create a new organization, if you delete those templates you won't be able to run this workflow, check default templates for more information.

At the moment all the terraform operations are executed remotely in Terrakube

Configuration

To use the CLI-driven workflow the firts step will be to setup our project to use the terraform remote backend or the cloud block as the following example:

terraform {
  backend "remote" {
    hostname = "terrakube-api.example.com"
    organization = "simple"
    workspaces {
      name = "workspace1"
    }
  }
}

resource "random_string" "random" {
  length           = 16
  special          = true
  override_special = "/@£$"
}

terraform {
  cloud {
    organization = "simple"
    hostname = "terrakube-api.example.com"
    workspaces {
      name = "samplecloud"
    }
  }
}

resource "random_string" "random" {
  length           = 16
  special          = true
  override_special = "/@£$"
}

terraform {
  cloud {
    organization = "simple"
    hostname = "terrakube-api.example.com"

    workspaces {
      tags = ["development", "networking"]
    }
  }
}

resource "random_string" "random" {
  length           = 16
  special          = true
  override_special = "/@£$"
}

Hostname
- This should be the Terrakube API
Organization
- This should be the Terrakube organization where the workspace will be created.
Workspace
- The name of the workspace to be created. Or you can use an existing workspace created in the UI using the API or CLI driven workflow.

The cloud block is available in Terraform v1.1 and later. Previous versions can use the remote bakced to configure the CLI workflow and migrate state. Using tags in the cloud block is not yet supported

Once we have added the terraform remote state configuration we will need to authenticate to Terrakube using the following command with the Terrakube API as the following:

terraform login 8080-azbuilder-terrakube-3xqsq270uq1.ws-us82.gitpod.io

The output will look something like the following:

terraform login 8080-azbuilder-terrakube-po7evw1u15x.ws-us86.gitpod.io
Terraform will request an API token for 8080-azbuilder-terrakube-po7evw1u15x.ws-us86.gitpod.io using OAuth.

This will work only if you are able to use a web browser on this computer to
complete a login process. If not, you must obtain an API token by another
means and configure it in the CLI configuration manually.

If login is successful, Terraform will store the token in plain text in
the following file for use by subsequent commands:
    C:\Users\XXXXXX\AppData\Roaming\terraform.d\credentials.tfrc.json

Do you want to proceed?
  Only 'yes' will be accepted to confirm.

  Enter a value: yes

Terraform must now open a web browser to the login page for 8080-azbuilder-terrakube-po7evw1u15x.ws-us86.gitpod.io.

If a browser does not open this automatically, open the following URL to proceed:
    https://5556-azbuilder-terrakube-po7evw1u15x.ws-us86.gitpod.io/dex/auth?scope=openid+profile+email+offline_access+groups&client_id=example-app&code_challenge=YYe059U9HyeMy1-RmuEzSajPJYGdcY4IkNr0pZz4LZ8&code_challenge_method=S256&redirect_uri=http%3A%2F%2Flocalhost%3A10000%2Flogin&response_type=code&state=f8b6da79-35f3-2b92-d8d8-179cda386f91

Terraform will now wait for the host to signal that login was successful.


---------------------------------------------------------------------------------

Success! Terraform has obtained and saved an API token.

The new API token will be used for any future Terraform command that must make
authenticated requests to 8080-azbuilder-terrakube-po7evw1u15x.ws-us86.gitpod.io.

Terraform Init

After the authentication is completed you can run the following command to initialized the workspace

terraform init

The output will look like this:

terraform init

Initializing the backend...

Initializing provider plugins...
- Reusing previous version of hashicorp/random from the dependency lock file
- Using previously-installed hashicorp/random v3.4.3

Terraform has been successfully initialized!

You may now begin working with Terraform. 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. If you forget, other
commands will detect it and remind you to do so if necessary.

If the initialization is successfull you should be able to see something like this:

Implicit Workspace Creation

Terrakube will create a new workspace with the name you specify in the cloud block if it doesn’t already exist in your organization. You will see a message about this when you run terraform init.

Terraform Plan

Once the terraform initialization is completed we should be able to run a terraform plan remotely using the following:

terraform plan

Running plan in the remote backend. Output will stream here. Pressing Ctrl-C
will stop streaming the logs, but will not stop the plan running remotely.

Preparing the remote plan...

To view this run in a browser, visit:
https://8080-azbuilder-terrakube-po7evw1u15x.ws-us86.gitpod.io/app/simple/workspace1/runs/1

Waiting for the plan to start...

Terrakube Remote Plan Execution



Terraform used the selected providers to generate the following execution
plan. Resource actions are indicated with the following symbols:
  + create

Terraform will perform the following actions:

  # random_string.random will be created
  + resource "random_string" "random" {
      + id               = (known after apply)
      + length           = 16
      + lower            = true
      + min_lower        = 0
      + min_numeric      = 0
      + min_special      = 0
      + min_upper        = 0
      + number           = true
      + numeric          = true
      + override_special = "/@£$"
      + result           = (known after apply)
      + special          = true
      + upper            = true
    }

Plan: 1 to add, 0 to change, 0 to destroy.

You can use .tfvars file inside the workspace to upload the variables to the workspace automatically

If you go to the Terrakube UI, you will be able to see the workspace plan execution.

Terraform Apply

You can also execute a terraform apply and it will run inside Terrakube remotely.

terraform apply
Running apply in the remote backend. Output will stream here. Pressing Ctrl-C
will cancel the remote apply if it's still pending. If the apply started it
will stop streaming the logs, but will not stop the apply running remotely.

Preparing the remote apply...

To view this run in a browser, visit:
https://8080-azbuilder-terrakube-po7evw1u15x.ws-us86.gitpod.io/app/simple/workspace1/runs/2

Waiting for the plan to start...

Terrakube Remote Plan Execution



Terraform used the selected providers to generate the following execution
plan. Resource actions are indicated with the following symbols:
  + create

Terraform will perform the following actions:

  # random_string.random will be created
  + resource "random_string" "random" {
      + id               = (known after apply)
      + length           = 16
      + lower            = true
      + min_lower        = 0
      + min_numeric      = 0
      + min_special      = 0
      + min_upper        = 0
      + number           = true
      + numeric          = true
      + override_special = "/@£$"
      + result           = (known after apply)
      + special          = true
      + upper            = true
    }

Plan: 1 to add, 0 to change, 0 to destroy.


Do you want to perform these actions in workspace "workspace1"?
  Terraform will perform the actions described above.
  Only 'yes' will be accepted to approve.

  Enter a value: yes

random_string.random: Creating...
random_string.random: Creation complete after 0s [id=QvsEmtO7WoeJJcAJ]

Apply complete! Resources: 1 added, 0 changed, 0 destroyed.

The terraform apply can only be approved using the terraform CLI. You wont be able to approve the job inside the UI.

Terraform Destroy

Executing the terraform destroy is also possible.

terraform destroy
Running apply in the remote backend. Output will stream here. Pressing Ctrl-C
will cancel the remote apply if it's still pending. If the apply started it
will stop streaming the logs, but will not stop the apply running remotely.

Preparing the remote apply...

To view this run in a browser, visit:
https://8080-azbuilder-terrakube-po7evw1u15x.ws-us86.gitpod.io/app/simple/workspace1/runs/3

Waiting for the plan to start...

Terrakube Remote Plan Execution


random_string.random: Refreshing state... [id=QvsEmtO7WoeJJcAJ]

Terraform used the selected providers to generate the following execution
plan. Resource actions are indicated with the following symbols:
  - destroy

Terraform will perform the following actions:

  # random_string.random will be destroyed
  - resource "random_string" "random" {
      - id               = "QvsEmtO7WoeJJcAJ" -> null
      - length           = 16 -> null
      - lower            = true -> null
      - min_lower        = 0 -> null
      - min_numeric      = 0 -> null
      - min_special      = 0 -> null
      - min_upper        = 0 -> null
      - number           = true -> null
      - numeric          = true -> null
      - override_special = "/@£$" -> null
      - result           = "QvsEmtO7WoeJJcAJ" -> null
      - special          = true -> null
      - upper            = true -> null
    }

Plan: 0 to add, 0 to change, 1 to destroy.


Do you really want to destroy all resources in workspace "workspace1"?
  Terraform will destroy all your managed infrastructure, as shown above.
  There is no undo. Only 'yes' will be accepted to confirm.

  Enter a value: yes

random_string.random: Destroying... [id=QvsEmtO7WoeJJcAJ]
random_string.random: Destruction complete after 0s

Apply complete! Resources: 0 added, 0 changed, 1 destroyed.

Inside the UI the terraform destroy operation will look like this.

The terraform destroy can only be approved using the terraform CLI. You wont be able to approve the job inside the UI.

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Configuration

Terraform login.

Terraform Init

Implicit Workspace Creation

Terraform Plan

Terraform Apply