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Version: v1.4

Terraform

To provision cloud resources, you can use terraform along with related cloud provider addons.

Enable Terraform addon​

vela addon enable terraform

After terraform addon enabled, you will have a basic capability to create cloud resource in CRD ways. Then you can enable a terraform provider addon for specific cloud.s

Enable Terraform Provider addon​

KubeVela can support following cloud providers by enabling the Terraform provider addons.

$ vela addon list | grep terraform-
terraform-alibaba           KubeVela    Kubernetes Terraform Controller for Alibaba Cloud                                                       [1.0.2, 1.0.1]                          enabled (1.0.2)
terraform-tencent           KubeVela    Kubernetes Terraform Controller Provider for Tencent Cloud                                              [1.0.0, 1.0.1]                          enabled (1.0.0)
terraform-aws               KubeVela    Kubernetes Terraform Controller for AWS                                                                 [1.0.0, 1.0.1]                          enabled (1.0.0)
terraform-azure             KubeVela    Kubernetes Terraform Controller for Azure                                                               [1.0.0, 1.0.1]                          enabled (1.0.0)
terraform-baidu             KubeVela    Kubernetes Terraform Controller Provider for Baidu Cloud                                                [1.0.0, 1.0.1]                          enabled (1.0.0)
terraform-gcp               KubeVela    Kubernetes Terraform Controller Provider for Google Cloud Platform                                      [1.0.0, 1.0.1]                          enabled (1.0.0)
terraform-ucloud            KubeVela    Kubernetes Terraform Controller Provider for UCloud                                                     [1.0.1, 1.0.0]                          enabled (1.0.1)

To enable one of them, use the following command:

$ vela addon enable terraform-<provider-name>

You can also disable, upgrade, check status of an addon by command vela addon.

Authenticate Terraform Provider​

After any of the terraform provider addon enabled, you can create credential for them by vela provider command.

Add Credential​

Each Terraform provider can be authenticated by the command as below.

$ vela provider add -h
Authenticate Terraform Cloud Provider by creating a credential secret and a Terraform Controller Provider

Usage:
  vela provider add [flags]
  vela provider add [command]

Examples:
vela provider add <provider-type>

Available Commands:
  terraform-alibaba Authenticate Terraform Cloud Provider terraform-alibaba
  terraform-aws     Authenticate Terraform Cloud Provider terraform-aws
  terraform-azure   Authenticate Terraform Cloud Provider terraform-azure
  terraform-baidu   Authenticate Terraform Cloud Provider terraform-baidu
  terraform-gcp     Authenticate Terraform Cloud Provider terraform-gcp
  terraform-tencent Authenticate Terraform Cloud Provider terraform-tencent
  terraform-ucloud  Authenticate Terraform Cloud Provider terraform-ucloud

For example, let's authenticate the Terraform provider terraform-aws.

Here is the help message for authenticate the terraform-aws.

$ vela provider add terraform-aws -h
Authenticate Terraform Cloud Provider terraform-aws by creating a credential secret and a Terraform Controller Provider

Usage:
  vela provider add terraform-aws [flags]

Examples:
vela provider add terraform-aws

Flags:
      --AWS_ACCESS_KEY_ID string       Get AWS_ACCESS_KEY_ID per https://aws.amazon.com/blogs/security/wheres-my-secret-access-key/
      --AWS_DEFAULT_REGION string      Choose one of Code form region list https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-regions-availability-zones.html#concepts-available-regions
      --AWS_SECRET_ACCESS_KEY string   Get AWS_SECRET_ACCESS_KEY per https://aws.amazon.com/blogs/security/wheres-my-secret-access-key/
      --AWS_SESSION_TOKEN string       Get AWS_SESSION_TOKEN per https://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_use-resources.html
  -h, --help                           help for terraform-aws
      --name default                   The name of Terraform Provider for AWS, default is default (default "aws")

Global Flags:
  -y, --yes   Assume yes for all user prompts

Authenticate a Terraform provider​

$ vela provider add terraform-aws --AWS_ACCESS_KEY_ID=xxx --AWS_SECRET_ACCESS_KEY=yyy --AWS_DEFAULT_REGION=us-east-1

Without setting a provider name by --name, an AWS Terraform provider named aws will be created.

You also create multiple providers by specifying the --name flag.

$ vela provider add terraform-aws --name aws-dev --AWS_ACCESS_KEY_ID=xxx --AWS_SECRET_ACCESS_KEY=yyy --AWS_DEFAULT_REGION=us-east-1

Provision cloud resources​

After a Terraform provider is authenticated, you can provision and/or consume cloud resources.