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Get started

Prerequisites

  • Helm Cli

Refer to Helm official Doc to install helm Cli.

  • Install Terraform Kubernetes Controller

Download the latest chart, like terraform-controller-0.1.8.tgz, from the latest releases and install it.

$ helm install -n tf-controller terraform-controller terraform-controller-0.1.8.tgz
NAME: terraform-controller
LAST DEPLOYED: Mon Apr 26 15:55:35 2021
NAMESPACE: default
STATUS: deployed
REVISION: 1
TEST SUITE: None

For Alibaba Cloud

Apply Provider configuration

$ export ALICLOUD_ACCESS_KEY=xxx; export ALICLOUD_SECRET_KEY=yyy

If you'd like to use Alicloud Security Token Service, also export ALICLOUD_SECURITY_TOKEN.

$ export ALICLOUD_SECURITY_TOKEN=zzz
$ sh hack/prepare-alibaba-credentials.sh

$ kubectl get secret -n vela-system
NAME                                              TYPE                                  DATA   AGE
alibaba-account-creds                             Opaque                                1      11s

$ kubectl apply -f examples/alibaba/provider.yaml
provider.terraform.core.oam.dev/default created

Apply Terraform Configuration

Apply Terraform configuration configuration_hcl_oss.yaml (JSON configuration configuration_oss.yaml is also supported) to provision an Alibaba OSS bucket.

apiVersion: terraform.core.oam.dev/v1beta1
kind: Configuration
metadata:
  name: alibaba-oss
spec:
  hcl: |
    resource "alicloud_oss_bucket" "bucket-acl" {
      bucket = var.bucket
      acl = var.acl
    }

    output "BUCKET_NAME" {
      value = "${alicloud_oss_bucket.bucket-acl.bucket}.${alicloud_oss_bucket.bucket-acl.extranet_endpoint}"
    }

    variable "bucket" {
      description = "OSS bucket name"
      default = "vela-website"
      type = string
    }

    variable "acl" {
      description = "OSS bucket ACL, supported 'private', 'public-read', 'public-read-write'"
      default = "private"
      type = string
    }

  variable:
    bucket: "vela-website"
    acl: "private"

  writeConnectionSecretToRef:
    name: oss-conn
    namespace: default
$ kubectl get configuration.terraform.core.oam.dev
NAME         AGE
alibaba-oss   1h

$ kubectl get configuration.terraform.core.oam.dev alibaba-oss -o yaml
apiVersion: terraform.core.oam.dev/v1beta1
kind: Configuration
metadata:
  annotations:
    kubectl.kubernetes.io/last-applied-configuration: |
      {"apiVersion":"terraform.core.oam.dev/v1beta1","kind":"Configuration","metadata":{"annotations":{},"name":"alibaba-oss","namespace":"default"},"spec":{"JSON":"{\n  \"resource\": {\n    \"alicloud_oss_bucket\": {\n      \"bucket-acl\": {\n        \"bucket\": \"${var.bucket}\",\n        \"acl\": \"${var.acl}\"\n      }\n    }\n  },\n  \"output\": {\n    \"BUCKET_NAME\": {\n      \"value\": \"${alicloud_oss_bucket.bucket-acl.bucket}.${alicloud_oss_bucket.bucket-acl.extranet_endpoint}\"\n    }\n  },\n  \"variable\": {\n    \"bucket\": {\n      \"default\": \"poc\"\n    },\n    \"acl\": {\n      \"default\": \"private\"\n    }\n  }\n}\n","variable":{"acl":"private","bucket":"vela-website"},"writeConnectionSecretToRef":{"name":"oss-conn","namespace":"default"}}}
  creationTimestamp: "2021-04-02T08:17:08Z"
  generation: 2
spec:
  ...
  variable:
    acl: private
    bucket: vela-website
  writeConnectionSecretToRef:
    name: oss-conn
    namespace: default
status:
  outputs:
    BUCKET_NAME:
      type: string
      value: vela-website.oss-cn-beijing.aliyuncs.com
  state: provisioned

Looking into Configuration (optional)

  • Watch the job to complete
$ kubectl get job
NAME               COMPLETIONS   DURATION   AGE
alibaba-oss-apply   1/1           12s        94s

$ kubectl get pod
NAME                     READY   STATUS      RESTARTS   AGE
alibaba-oss-apply-5c8b6   0/2     Completed   0          111s

$ kubectl logs alibaba-oss-rllx4 terraform-executor

Initializing the backend...

Initializing provider plugins...
- Finding latest version of hashicorp/alicloud...
- Installing hashicorp/alicloud v1.119.1...
- Installed hashicorp/alicloud v1.119.1 (signed by HashiCorp)

Terraform has created a lock file .terraform.lock.hcl to record the provider
selections it made above. Include this file in your version control repository
so that Terraform can guarantee to make the same selections by default when
you run "terraform init" in the future.


Warning: Additional provider information from registry

The remote registry returned warnings for
registry.terraform.io/hashicorp/alicloud:
- For users on Terraform 0.13 or greater, this provider has moved to
aliyun/alicloud. Please update your source in required_providers.

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.
alicloud_oss_bucket.bucket-acl: Creating...
alicloud_oss_bucket.bucket-acl: Creation complete after 3s [id=vela-website]

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

Outputs:

BUCKET_NAME = "vela-website.oss-cn-beijing.aliyuncs.com"

OSS bucket is provisioned.

$ ossutil ls oss://
CreationTime                                 Region    StorageClass    BucketName
2021-04-10 00:42:09 +0800 CST        oss-cn-beijing        Standard    oss://vela-website
Bucket Number is: 1

0.146789(s) elapsed
  • Check the generated connection secret
$ kubectl get secret oss-conn
NAME       TYPE     DATA   AGE
oss-conn   Opaque   1      2m41s

Update Configuration

Change the OSS ACL to public-read.

apiVersion: terraform.core.oam.dev/v1beta1
kind: Configuration
metadata:
  name: alibaba-oss
spec:
  JSON: |
    ..

  variable:
    ...
    acl: "public-read"

Delete Configuration

Delete the configuration will destroy the OSS cloud resource.

$ kubectl delete configuration.terraform.core.oam.dev alibaba-oss
configuration.terraform.core.oam.dev "alibaba-oss" deleted

$ ossutil ls oss://
Bucket Number is: 0

0.030917(s) elapsed

For AWS

Apply Provider configuration

$ export AWS_ACCESS_KEY_ID=xxx;export AWS_SECRET_ACCESS_KEY=yyy

$ sh hack/prepare-aws-credentials.sh

$ kubectl get secret -n vela-system
NAME                                              TYPE                                  DATA   AGE
aws-account-creds                                 Opaque                                1      52s

$ kubectl apply -f examples/aws/provider.yaml
provider.terraform.core.oam.dev/default created

Apply Terraform Configuration

Apply Terraform configuration configuration_hcl_s3.yaml to provision a s3 bucket.

apiVersion: terraform.core.oam.dev/v1beta1
kind: Configuration
metadata:
  name: aws-s3
spec:
  hcl: |
    resource "aws_s3_bucket" "bucket-acl" {
      bucket = var.bucket
      acl    = var.acl
    }

    output "BUCKET_NAME" {
      value = aws_s3_bucket.bucket-acl.bucket_domain_name
    }

    variable "bucket" {
      default = "vela-website"
    }

    variable "acl" {
      default = "private"
    }

  variable:
    bucket: "vela-website"
    acl: "private"

  writeConnectionSecretToRef:
    name: s3-conn
    namespace: default

$ kubectl get configuration.terraform.core.oam.dev
NAME     AGE
aws-s3   6m48s

$ kubectl describe configuration.terraform.core.oam.dev aws-s3
apiVersion: terraform.core.oam.dev/v1beta1
kind: Configuration
...
  Write Connection Secret To Ref:
    Name:       s3-conn
    Namespace:  default
Status:
  Outputs:
    BUCKET_NAME:
      Type:   string
      Value:  vela-website.s3.amazonaws.com
  State:      provisioned

$ kubectl get secret s3-conn
NAME      TYPE     DATA   AGE
s3-conn   Opaque   1      7m37s

$ aws s3 ls
2021-04-12 19:03:32 vela-website

For GCP

Apply Provider configuration

For authentication with GCP, the GOOGLE_CREDENTIALS variable containing the Google authentication JSON must be exported. At this time, the file path is not supported.

$ export GOOGLE_CREDENTIALS='{ "type": "service_account", "project_id": "example-project-123456", "private_key_id": "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "private_key": "-----BEGIN PRIVATE KEY-----\\n-----END PRIVATE KEY-----\n", "client_email": "test@developer.gserviceaccount.com", "client_id": "123456789012345678901", "auth_uri": "https://accounts.google.com/o/oauth2/auth", "token_uri": "https://oauth2.googleapis.com/token", "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs", "client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/test%40developer.gserviceaccount.com" }'
$ export GOOGLE_PROJECT=yyy

$ sh hack/prepare-gcp-credentials.sh

$ kubectl get secret -n vela-system
NAME                                              TYPE                                  DATA   AGE
gcp-account-creds                                 Opaque                                1      52s

$ kubectl apply -f examples/gcp/provider.yaml
provider.terraform.core.oam.dev/default created

Apply Terraform Configuration

Apply Terraform configuration configuration_hcl_bucket.yaml to provision a storage bucket.

apiVersion: terraform.core.oam.dev/v1beta1
kind: Configuration
metadata:
  name: gcp-bucket
spec:
  hcl: |
    resource "google_storage_bucket" "bucket" {
      name = var.bucket
    }

    output "BUCKET_URL" {
      value = google_storage_bucket.bucket.url
    }

    variable "bucket" {
      default = "vela-website"
    }

  variable:
    bucket: "vela-website"
    acl: "private"

  writeConnectionSecretToRef:
    name: bucket-conn
    namespace: default
$ kubectl get configuration.terraform.core.oam.dev
NAME         AGE
gcp-bucket   6m48s

$ kubectl describe configuration.terraform.core.oam.dev gcp-bucket
apiVersion: terraform.core.oam.dev/v1beta1
kind: Configuration
...
  Write Connection Secret To Ref:
    Name:       bucket-conn
    Namespace:  default
Status:
  Outputs:
    BUCKET_URL:
      Type:   string
      Value:  gs://vela-website
  State:      provisioned

$ kubectl get secret bucket-conn
NAME      TYPE     DATA   AGE
bucket-conn   Opaque   1      7m37s

For VMware vSphere

Apply Provider configuration

$ export VSPHERE_USER=xxx
$ export VSPHERE_PASSWORD=yyy
$ export VSPHERE_SERVER=zzz
# If you have a self-signed cert, you will need this.
$ export VSPHERE_ALLOW_UNVERIFIED_SSL=true

$ sh hack/prepare-vsphere-credentials.sh

$ kubectl get secret -n vela-system
NAME                             TYPE                                  DATA   AGE
vsphere-account-creds            Opaque                                1      1m

$ kubectl apply -f examples/vsphere/provider.yaml

Apply Terraform configuration

Apply Terraform configuration configuration_hcl_folder.yaml to provision a folder.

apiVersion: terraform.core.oam.dev/v1beta1
kind: Configuration
metadata:
  name: vsphere-folder
spec:
  hcl: |
    #############
    # Variables #
    #############
    variable "vsphere-datacenter" {
      type        = string
      description = "VMware vSphere datacenter"
    }

    variable "folder-name" {
      type        = string
      description = "The name of folder"
    }

    variable "folder-type" {
      type        = string
      description = "The type of folder"
    }

    ##########
    # Folder #
    ##########

    data "vsphere_datacenter" "dc" {
      name = var.vsphere-datacenter
    }

    resource "vsphere_folder" "folder" {
      path          = var.folder-name
      type          = var.folder-type
      datacenter_id = data.vsphere_datacenter.dc.id
    }

    output "folder" {
        value       = "folder-${var.folder-type}-${var.folder-name}"
    }

  variable:
    vsphere-datacenter: Datacenter01
    folder-name: test
    folder-type: vm

  writeConnectionSecretToRef:
    name: folder-outputs
    namespace: default

  providerRef:
    name: vsphere
$ kubectl get configuration.terraform.core.oam.dev
NAME             STATE       AGE
vsphere-folder   Available   17m

$ kubectl describe configuration.terraform.core.oam.dev vsphere-folder
Name:         vsphere-folder
Namespace:    default
Labels:       <none>
Annotations:  API Version:  terraform.core.oam.dev/v1beta1
Kind:         Configuration
...
Status:
  Message:  Cloud resources are deployed and ready to use.
  Outputs:
    Folder:
      Type:   string
      Value:  folder-vm-test
  State:      Available
Events:       <none>

$ kubectl get secret folder-outputs
NAME         TYPE     DATA   AGE
vm-outputs   Opaque   1      18m