Creating a target instance for each FortiGate-VM

To create a target instance for each FortiGate-VM:

1. Create a target instance around the primary FortiGate-VM instance:

   gcloud compute target-instances create doc-pf-primary-instance \
   	--instance <INSTANCE_NAME>
   

   

2. Create a target instance around the secondary FortiGate-VM instance:

   gcloud compute target-instances create doc-pf-secondary-instance \
   	--instance <INSTANCE_NAME>
   

3. Create a forwarding rule:

   gcloud compute forwarding-rules create doc-pf-rule \
   --ip-protocol TCP \
   --ports 80 \
   --target-instance doc-pf-primary-instance \
   --target-instance-zone=$zone1 \
   --region us-central1