Configure DNS bindings

This page describes how to configure DNS bindings for Standard VMware Engine Networks.

Each private cloud deploys a Cloud DNS Server that is used for all management appliances resolution. You can configure this server as the DNS server for all VMware workloads by setting up DNS bindings. To do so, you need to:

  1. Get the IP address of the Private Cloud's DNS server
  2. Set up DNS bind permissions to allow a user principal to bind to the intranet VPC
  3. Configure DNS for your VMware workloads or NSX-T segment DHCP DNS setting

Before you begin

You can only configure DNS bindings using the gcloud tool or the API.

gcloud and API requirements

To use the gcloud command line tool or the API to manage your VMware Engine resources, we recommend configuring the tools as described below.

gcloud

  1. Set your default project ID:

    gcloud config set project PROJECT_ID

  2. Set a default region and zone:

    gcloud config set compute/region REGION

    gcloud config set compute/zone ZONE

For more information on the gcloud vmware tool, see the Cloud SDK reference docs.

API

API examples in this documentation set use the cURL command-line tool to query the API. A valid access token is required as part of the cURL request. There are many ways to get a valid access token; the following steps use the gcloud tool to generate a access token:

  1. Login to Google Cloud:

    gcloud auth login

  2. Generate access token and export to TOKEN:

    export TOKEN=`gcloud auth print-access-token`

  3. Verify that TOKEN is set properly:

    echo $TOKEN

Now, use the authorization token in your requests to the API. For example:

curl -X GET -H "Authorization: Bearer \"$TOKEN\"" -H "Content-Type: application/json; charset=utf-8" https://vmwareengine.googleapis.com/v1/projects/PROJECT_ID/locations

Python

Python code samples in this documentation use the VMware Engine library to communicate with the API. To be able to use this approach, the library needs to be installed and the Application Default Credentials should be configured.

  1. Download and install the Python library:

    pip install google-cloud-vmwareengine

  2. Configure the ADC information by executing those command in your shell:

    gcloud auth application-default login

    Or, use a Service Account key file:

    export GOOGLE_APPLICATION_CREDENTIALS="FILE_PATH"

For more information about the library, visit the reference page or view code samples on GitHub.

Get a private cloud workload DNS server IP

Console

To get the IP address of your private cloud's DNS server, follow these steps.

  1. Access the Google Cloud console.
  2. From the main navigation, click Private clouds.
  3. Click the name of the private cloud you want to connect to.
  4. On the Summary page for the private cloud, under Private Cloud DNS servers, click Copy to copy the private Cloud DNS server IP address.

gcloud

To get the IP address of your private cloud's DNS server using Google Cloud CLI, use the gcloud vmware private-clouds describe command:

gcloud vmware private-clouds describe \
  --private-cloud=PRIVATE_CLOUD_ID \
  --project=PROJECT_ID \
  --location=REGION

Replace the following:

  • PRIVATE_CLOUD_ID: the private cloud name for this request
  • PROJECT_ID: the project ID for this request
  • REGION: the region of the private cloud; if this is stretched private cloud, specify the zone for this private cloud

API

To get the IP address of your private cloud's DNS server using the VMware Engine API, make a GET request:

curl -X GET -H "Authorization: Bearer TOKEN"  -H "Content-Type: application/json; charset=utf-8" "https://vmwareengine.googleapis.com/v1/projects/PROJECT_ID/locations/REGION/privateCloud/PRIVATE_CLOUD_ID"

Replace the following:

  • PROJECT_ID: the project ID for this request
  • REGION: the region of the private cloud; if this is stretched private cloud, specify the zone for this private cloud
  • PRIVATE_CLOUD_ID: the private cloud name for this request.

Set up DNS bind permissions

You can only set up and manage DNS bind permissions using the gcloud tool or directly using the REST API. It is not possible to set up bindings through the console.

Grant DNS bind permission

In order for a user to configure DNS bindings, you must grant a user principal the permission to bind to the intranet VPC. In this case, a user principal is the email address of the user who will bind the private DNS zone with the intranet VPC.

gcloud 

gcloud vmware dns-bind-permission grant \
  --user=USER

Replace USER with the email of the user who is going to bind the private DNS zone with the intranet VPC. For example, example1@gmail.com.

API

Make a POST request to dnsBindPermissions:grant method and provide the user email address in the request body.

curl -X POST -H "Authorization: Bearer TOKEN"  -H "Content-Type: application/json; charset=utf-8" https://vmwareengine.googleapis.com/v1/projects/PROJECT_ID/locations/global/privateClouds/dnsBindPermission:grant

{
"Principal": {
  "user": "USER"
}
}

Replace the following:

  • PROJECT_ID: the project for this request.
  • USER: the email of the user for whom you want to revoke permissions. For example, example1@gmail.com.

Revoke DNS Bind Permission

Revokes the DNS Bind Permission that was previously granted to the user.

gcloud 

gcloud vmware dns-bind-permission revoke \
  --user=USER

Replace USER with the email of the user for whom you want to revoke permissions. For example, example1@gmail.com.

API

Make a POST request to dnsBindPermissions:revoke and provide the user email address in the request body.

curl -X POST -H "Authorization: Bearer TOKEN"  -H "Content-Type: application/json; charset=utf-8" https://vmwareengine.googleapis.com/v1/projects/PROJECT_ID/locations/global/privateClouds/dnsBindPermission:revoke

{
"Principal": {
  "user": "USER"
}
}

Replace the following:

  • PROJECT_ID: the project for this request.
  • USER: the email of the user for whom you want to revoke permissions. For example, example1@gmail.com.

Describe DNS bind Permission

Describes DNS bind permissions for a project and which user principal has access to configure DNS bindings.

gcloud 

gcloud vmware dns-bind-permission describe

API

Make a GET request to dnsBindPermissions resource.

curl -X GET -H "Authorization: Bearer TOKEN"  -H "Content-Type: application/json; charset=utf-8" https://vmwareengine.googleapis.com/v1/projects/PROJECT_ID/locations/global/privateClouds/dnsBindPermission

Replace PROJECT_ID with the project for this request.

Binding Private Cloud DNS Zone with the VMware Engine network intranet VPC

Once you grant a user principal the permissions to configure DNS bindings, the user can create a binding between the private DNS zone in Cloud DNS and the intranet VPC of the VMware Engine Network. VMware Engine uses DNS peering to facilitate Cloud DNS resolution.

Locating the Intranet VPC URL

You need the network intranet VPC URL to create the new binding. The VMware Engine network intranet VPC can be found by listing the details of the VMware Engine network.

Console

To locate the Intranet VPC URL using the Google Cloud console, follow these steps:

  1. Access the Google Cloud console.
  2. From the main navigation, click VMware Engine networks.
  3. Locate the VMware Engine Network, click the Action option and select Copy Intranet VPC network URL.

gcloud 

gcloud vmware networks describe VMWARE_ENGINE_NETWORK

Replace VMWARE_ENGINE_NETWORK with the network to describe. As part of the response, gcloud returns the details of the network which contains the intranet VPC URL.

API

Make a GET request to the vmwareEngineNetworks resource and provide the name of the network:

curl -X GET -H "Authorization: Bearer TOKEN"  -H "Content-Type: application/json; charset=utf-8" https://vmwareengine.googleapis.com/v1/projects/PROJECT_ID/locations/global/vmwarenEngineNetworks/NETWORK_ID

Replace the following:

  • PROJECT_ID: the project for this request
  • NETWORK_ID: the network to describe

Binding

The intended workflow, once bind permissions are configured, is to add a DNS peering to the VMware Engine network intranet VPC into your standard Cloud DNS zone management process for each zone.

gcloud 

gcloud dns managed-zones create peering-DOMAIN  \
--dns-name="DOMAIN" \
--visibility="private" \
--networks="INTRANET_VPC_URL" \
--target-project="PROJECT_ID" \
--target-network="EXISTING_VPC" \
--description="DESCRIPTION"

Replace the following:

  • DOMAIN: the domain to extended, example zone1.example.com
  • INTRANET_VPC_URL: the intranet VPC URL for the VMware Engine network
  • EXISTING_VPC: the URL of the existing VPC network that the DOMAIN is already bound to
  • PROJECT_ID: the project ID for this request

API

Make a PATCH request to the managedZones resource and provide the name of the zone:

curl -X POST -H "Authorization: Bearer TOKEN"  -H "Content-Type: application/json; charset=utf-8" https://dns.googleapis.com/v1/projects/PROJECT_ID/managedZones -d "{
"name": "peering-DOMAIN",          
"description": "",
"dnsName": DOMAIN,
"peeringConfig": {
    "targetNetwork": {
        "networkUrl": EXISTING_VPC
    }
  },
  "privateVisibilityConfig": {
    "networks": [
      {
        "networkUrl": INTRANET_VPC_URL
      }
    ]
  }  
}"

Replace the following:

  • PROJECT_ID: the project ID for this request
  • DOMAIN: the domain to extended, example zone1.example.com
  • INTRANET_VPC_URL: the intranet VPC URL for the VMware Engine network.
  • EXISTING_VPC: the URL of the existing VPC network that the DOMAIN is already bound to

Example DNS Bindings

The following are some example DNS bindings you might use.

Authoritative

gcloud dns managed-zones create zone1 \
  --dns-name="zone1.example.com." \
  --visibility="private" \
  --description="DESCRIPTION" \
  --networks="EXISTING_VPC"
gcloud dns managed-zones create peering-zone1 \
  --dns-name="zone1.example.com." \
  --visibility="private" \
  --networks="INTRANET_VPC_URL" \
  --target-project="PROJECT_ID" \
  --target-network="EXISTING_VPC" \
  --description="DESCRIPTION"

Conditional Forwarding

gcloud dns managed-zones create zone1 \
  --description="DESCRIPTION" \
  --dns-name="zone1.example.com." \
  --visibility="private" \
  --networks=EXISTING_VPC \
  --forwarding-targets="DNS_SERVER_IP1","DNS_SERVER_IP2"
gcloud dns managed-zones create peering-zone1 \
  --dns-name="zone1.example.com." \
  --visibility="private" \
  --networks="INTRANET_VPC_URL" \
  --target-project="PROJECT_ID" \
  --target-network="EXISTING_VPC" \
  --description="DESCRIPTION"

Forwarding All

gcloud dns managed-zones create forward-all \
  --description="" --dns-name="." \
  --visibility="private" \
  --networks="EXISTING_VPC" \
  --forwarding-targets="DNS_SERVER_IP1","DNS_SERVER_IP2"
gcloud dns managed-zones create peering-forward-all \
  --dns-name="." \
  --visibility="private" \
  --networks="INTRANET_VPC_URL" \
  --target-project="PROJECT_ID" \
  --target-network="EXISTING_VPC" \
  --description="DESCRIPTION"

Google API Private

gcloud dns managed-zones create googleapis \
  --dns-name="googleapis.com." \
  --visibility="private" \
  --description="Direct GCVE traffic to Private IPs for Google API Access" \
  --networks="EXISTING_VPC"
gcloud dns managed-zones create peering-googleapis  \
  --dns-name="googleapis.com." \
  --visibility="private" \
  --networks="INTRANET_VPC_URL" \
  --target-project="PROJECT_ID" \
  --target-network="EXISTING_VPC" \
  --description="DESCRIPTION"
gcloud dns record-sets create private.googleapis.com. \
  --zone="googleapis" \
  --type="A" \
  --ttl="300" \
  --rrdatas="199.36.153.8,199.36.153.9,199.36.153.10,199.36.153.11"
gcloud dns record-sets create *.googleapis.com. \
  --zone="googleapis" \
  --type="CNAME" \
  --ttl="300" \
  --rrdatas="private.googleapis.com."

Google API Restricted

gcloud dns managed-zones create googleapis \
  --dns-name="googleapis.com." \
  --visibility="private" \
  --description="Direct GCVE traffic to Private IPs for Google API Access" \
  --networks="EXISTING_VPC"
gcloud dns managed-zones create peering-googleapis \
  --dns-name="googleapis.com." \
  --visibility="private" \
  --networks="INTRANET_VPC_URL" \
  --target-project="PROJECT_ID" \
  --target-network="EXISTING_VPC" \
  --description="DESCRIPTION"
gcloud dns record-sets create restricted.googleapis.com. \
  --zone="googleapis" \
  --type="A" \
  --ttl="300" \
  --rrdatas="199.36.153.4, 199.36.153.5, 199.36.153.6, 199.36.153.7"
gcloud dns record-sets create *.googleapis.com. \
  --zone="googleapis" \
  --type="CNAME" \
  --ttl="300" \
  --rrdatas="restricted.googleapis.com."