# Active Directory Federation Services
This blueprint does the following:
Terraform:
- (Optional) Creates a project.
- (Optional) Creates a VPC.
- Sets up managed AD
- Creates a server where AD FS will be installed. This machine will also act as admin workstation for AD.
- Exposes AD FS using GLB.
Ansible:
- Installs the required Windows features and joins the computer to the AD domain.
- Provisions some tests users, groups and group memberships in AD. The data to provision is in the files directory of the ad-provisioning ansible role. There is script available in the scripts/ad-provisioning folder that you can use to generate an alternative users or memberships file.
- Installs AD FS
In addition to this, we also include a Powershell script that facilitates the configuration required for Anthos when authenticating users with AD FS as IdP.
The diagram below depicts the architecture of the blueprint:
![Architecture](architecture.png)
## Running the blueprint
Clone this repository or [open it in cloud shell](https://ssh.cloud.google.com/cloudshell/editor?cloudshell_git_repo=https%3A%2F%2Fgithub.com%2Fterraform-google-modules%2Fcloud-foundation-fabric&cloudshell_print=cloud-shell-readme.txt&cloudshell_working_dir=blueprints%2Fcloud-operations%2Fadfs), then go through the following steps to create resources:
- `terraform init`
- `terraform apply -var project_id=my-project-id -var ad_dns_domain_name=my-domain.org -var adfs_dns_domain_name=adfs.my-domain.org`
Once the resources have been created, do the following:
1. Create an A record to point the AD FS DNS domain name to the public IP address returned after the terraform configuration was applied.
2. Run the ansible playbook
ansible-playbook playbook.yaml
# Testing the blueprint
1. In your browser open the following URL:
https://adfs.my-domain.org/adfs/ls/IdpInitiatedSignOn.aspx
2. Enter the username and password of one of the users provisioned. The username has to be in the format: username@my-domain.org
3. Verify that you have successfully signed in.
Once done testing, you can clean up resources by running `terraform destroy`.
## Variables
| name | description | type | required | default |
|---|---|:---:|:---:|:---:|
| [ad_dns_domain_name](variables.tf#L44) | AD DNS domain name. | string
| ✓ | |
| [adfs_dns_domain_name](variables.tf#L49) | ADFS DNS domain name. | string
| ✓ | |
| [project_id](variables.tf#L24) | Host project ID. | string
| ✓ | |
| [ad_ip_cidr_block](variables.tf#L90) | Managed AD IP CIDR block. | string
| | "10.0.0.0/24"
|
| [disk_size](variables.tf#L54) | Disk size. | number
| | 50
|
| [disk_type](variables.tf#L60) | Disk type. | string
| | "pd-ssd"
|
| [image](variables.tf#L66) | Image. | string
| | "projects/windows-cloud/global/images/family/windows-2022"
|
| [instance_type](variables.tf#L72) | Instance type. | string
| | "n1-standard-2"
|
| [network_config](variables.tf#L35) | Network configuration | object({…})
| | null
|
| [prefix](variables.tf#L29) | Prefix for the resources created. | string
| | null
|
| [project_create](variables.tf#L15) | Parameters for the creation of the new project. | object({…})
| | null
|
| [region](variables.tf#L78) | Region. | string
| | "europe-west1"
|
| [subnet_ip_cidr_block](variables.tf#L96) | Subnet IP CIDR block. | string
| | "10.0.1.0/28"
|
| [zone](variables.tf#L84) | Zone. | string
| | "europe-west1-c"
|
## Outputs
| name | description | sensitive |
|---|---|:---:|
| [ip_address](outputs.tf#L15) | IP address. | |