AWS SDN connector using certificates

FortiOS automatically updates dynamic addresses for AWS using an AWS SDN connector, including mapping attributes from AWS instances to dynamic address groups in FortiOS.

Configuring the SDN connector using the GUI, then checking the configuration using the CLI is recommended.

This topic describes one of multiple configuration methods available with this SDN connector type. See the More Links section on the right sidebar for other methods.

To configure an AWS SDN connector using the GUI:

1. Configure the AWS SDN connector:
   1. Go to Security Fabric > External Connectors.
   2. Click Create New, and select Amazon Web Services (AWS).
   3. In the Access key ID field, enter the key created in the AWS management portal.
   4. In the Secret access key field, enter the secret access key accompanying the above access key.
   5. In the Region name field, enter the region name. Refer to AWS Regions and Endpoints for the desired region name.
   6. In the VPC ID field, enter the VPC ID within the specified region you desire to cover with the SDN connector.
   7. Click OK.
2. Check the configuration using the CLI:

   config system sdn-connector

   edit "<connector-name>"

   show

   The output resembles the following:

   config system sdn-connector

   edit "<connector-name>"

   set access-key "<example-access-key>"

   set secret-key ENC <example-secret-key>

   set region "us-west-2"

   set vpc-id "vpc-e1e4b587"

   set update-interval 1

   next

   end

   If you see that the SDN connector is not enabled in Security Fabric > External Connectors in the GUI, run the following commands to enable the SDN connector:

   diagnose deb application awsd -1

   diagnose debug enable

   The output may display an error like the following:

   FGT # awsd sdn connector AWS_SDN prepare to update

   awsd sdn connector AWS_SDN start updating

   aws curl response err, 403

   <?xml version="1.0" encoding="UTF-8"?>

   <Response><Errors><Error><Code>UnauthorizedOperation</Code><Message>You are not authorized to perform this operation.</Message></Error></Errors><RequestID>8403cc11-b185-41da-ad6d-23bb4db7d00a</RequestID></Response>

   awsd curl failed 403

   awsd sdn connector AWS_SDN failed to get instance list

   aws curl response err, 403

   {"Message":"User: arn:aws:iam::956224459807:user/jcarcavallo is not authorized to perform: eks:ListClusters on resource: arn:aws:eks:us-east-1:956224459807:cluster/*"}

   awsd sdn connector AWS_SDN get EKS cluster list failed

   awsd sdn connector AWS_SDN list EKS cluster failed

   awsd sdn connector AWS_SDN start updating IP addresses

   awsd sdn connector AWS_SDN finish updating IP addresses

   awsd reap child pid: 569

   In this case, you must configure power user access for the current administrator in the AWS management console:

   

   After configuring power user access, run the following commands:

   diagnose deb application awsd -1

   diagnose debug enable

   The output should display without error, as follows:

   FGT # AWSD: update sdn connector AWS_SDN status to enabled

   awsd sdn connector AWS_SDN prepare to update

   awsd sdn connector AWS_SDN start updating

   awsd get ec2 instance info successfully

   awsd sdn connector AWS_SDN start updating IP addresses

   awsd sdn connector AWS_SDN finish updating IP addresses

   awsd reap child pid: 893

   The AWS connector is now enabled.

3. Create a dynamic firewall address for the configured AWS SDN connector:

   1. Go to Policy & Objects > Addresses.

   2. Click Create New, then select Address.

   3. From the Type dropdown list, select Dynamic.

   4. From the Sub Type dropdown list, select Fabric Connector Address.

   5. In the Filter field, add the desired filters. The following filters are supported:

      Description	Key	Example value
      Architecture	architecture	x86
      Autoscaling group	AutoScaleGroup	10703c-4f731e90-fortigate-payg-auto-scaling-group
      AZ	placement.availabilityzone	us-east-1a
      Group name	placement.groupname
      Image ID	imageId	ami-123456
      Instance ID	instanceId	i-12345678
      Instance type	instanceType	t2.micro
      Key name	keyName
      Kubernetes cluster	k8s_cluster
      Kubernetes label and its name	k8s_label.Name
      Kubernetes namespace	k8s_namespace
      Kubernetes node name	k8s_nodename
      Kubernetes pod name	k8s_podname
      Kubernetes region	k8s_region
      Kubernetes service name	k8s_servicename
      Kubernetes zone	k8s_zone
      Private DNS name	privateDnsName	ip-172-31-10-211.us-west-2.compute.internal
      Public DNS name	publicDnsName	ec2-54-202-168-254.us-west-2.compute.amazonaws.com
      Security group ID	SecurityGroupId
      Subnet ID	subnetId	sub-123456
      Tag and its name. This key supports a maximum of eight tags.	tag.Name
      Tenancy placement	placement.tenancy
      VPC ID	VpcId

      

4. Ensure that the AWS SDN connector resolves dynamic firewall IP addresses:
   1. Go to Policy & Objects > Addresses.
   2. Hover over the address created in step 2 to see a list of IP addresses for instances that belong to the security group configured in step 2.

      The following is an example for a public SDN address type:

      

      The following is an example for a private SDN address type:

      

To configure AWS SDN connector using CLI commands:

1. Configure the AWS connector:

   config system sdn-connector

   edit "<connector-name>"

   set access-key "<example-access-key>"

   set secret-key ENC <example-secret-key>

   set region "us-west-2"

   set vpc-id "vpc-e1e4b587"

   set update-interval 1

   next

   end

2. Create a dynamic firewall address for the configured AWS SDN connector with the supported filter:

   config firewall address

   edit "aws-ec2"

   set type dynamic

   set sdn "<connector-name>"

   set filter "SecurityGroupId=sg-05f4749cf84267548"

   set sdn-addr-type public

   next

   edit "aws-eks1"

   set type dynamic

   set sdn "<connector-name>"

   set filter "K8S_Region=us-west-2"

   next

   end

3. Confirm that the AWS SDN connector resolves dynamic firewall IP addresses using the configured filter:

   config firewall address

   edit "aws-ec2"

   set type dynamic

   set sdn "<connector-name>"

   set filter "SecurityGroupId=sg-05f4749cf84267548"

   set sdn-addr-type public

   config list

   edit "34.222.246.198"

   next

   edit "54.188.139.177"

   next

   edit "54.218.229.229"

   next

   end

   next

   edit "aws-eks1"

   set type dynamic

   set sdn "<connector-name>"

   set filter "K8S_Region=us-west-2"

   config list

   edit "192.168.114.197"

   next

   edit "192.168.167.20"

   next

   edit "192.168.180.72"

   next

   edit "192.168.181.186"

   next

   edit "192.168.210.107"

   next

   end

   next

   end

To add an EC2 instance to test automatic address population:

1. Assume that you want to boot up another instance with an IP address of 34.222.246.178, which is currently stopped. This instance belongs to the security group that the aws-ec2 address is filtering for. In the AWS management portal, start the instance.

2. Verify that the instance is running.

3. At this point, running show again shows the SDN connector has automatically populated and added the 34.222.246.178 instance.

   config firewall address

   edit "aws-ec2"

   set type dynamic

   set sdn "<connector-name>"

   set filter "SecurityGroupId=sg-05f4749cf84267548"

   set sdn-addr-type public

   config list

   edit "34.222.246.198"

   next

   edit "54.188.139.177"

   next

   edit "54.218.229.229"

   next

   edit "34.222.246.178"

   next

   end

   next

   end

   Therefore, administrators do not need to add this instance to the address manually. When a firewall policy is applied to this address, 34.222.246.178 is automatically covered.