![]() In the case of instance launch, a Lifecycle hook is used to trigger a Lambda function which can add interfaces to an ASAv instance, and register outside interface IPs to target groups. Lifecycle hooks are used to get lifecycle change notification about an instance. Lambda Functions are delivered to customer in the form of a Python package. Register Gig0/1 interface to Load Balancer’s Target Groups.Ĭonfigure and deploy a new ASAv with the ASA configuration file. The basic functionality includes:Īdd/Remove Gig0/0, and Gig 0/1 interfaces to instance. The auto scale solution is a set of Lambda functions developed in Python, which gets triggered from Lifecycle hooks, SNS,ĬloudWatch event/alarm events. The template has limitations in validating user input, hence it is the user’s responsibility to validate input during deployment. The template takes user input to customize the deployment. The template consists of:Īuto Scale Group, Load Balancer, Security Groups, and other miscellaneous components. The CloudFormation template is used to deploy resources required by auto scale solution in AWS. The following components make up the auto scale solution. Serverless auto scale scripts are only invoked by CloudWatch events, hence they only run when an instance is launched. Other resources required for complete solution to work. We provide CloudFormation templates to automate the deployment of Auto Scale Manager components. The Auto Scale Manager is implemented using AWS Serverless architecture and communicates with AWS resources and the ASAv. To scale the ASAv instances in and out, an external entity called the Auto Scale Manager monitors metrics, commands an auto scale group toĪdd or delete the ASAv instances, and configures the ASAv instances. ![]() LB DNS, Port: 80 can be routed to Application-1 Port: 88 traffic can be routed to Application-2. Port-based bifurcation for traffic is possible. The left side is completely user-defined.Īpplication-initiated outbound traffic will not go through the ASAv.įigure 1. As indicated in the Use Case diagram, the right side of the dotted line is deployed All of the AWS requirementsĪnd conditions hold true for either case. ![]() The Internet-facing load balancer can be a Network Load Balancer or an Application Load Balancer. Secured ports need an SSL/TLS certificate, as described SSL Server Certificate in the Prerequisites. Only externally generated traffic is allowed to pass inside via the ASAv firewall. Because the AWS Load Balancer allows only Inbound-initiated connections, The Use Case for this ASAv AWS auto scale Solution is shown in the use case diagram. Support for enabling and disabling the auto scale feature. Support for Load Balancers and multi-availability zones. The ASAv auto scale solution is a CloudFormation template-based deployment that provides:Ĭompletely automated configuration automatically applied to scaled-out ASAv instances. Starting from version 6.4, the auto scale solution is supported on managed by FMC. That adds horizontal auto scaling capability to ASAv instances in the AWS environment. no helper VMs involved in the automation of this feature) The ASAv auto scale in AWS is a complete serverless implementation (i.e. The following sections describe how the components of the auto scale solution work for the ASAv on AWS.Ĭisco provides CloudFormation Templates and scripts for deploying an auto-scaling group of ASAv firewalls using several AWS services, including Lambda, auto scaling groups, Elastic Load Balancing (ELB), Amazon S3 Buckets, Auto Scale Solution for the FTDv ASAv on AWSĪuto Scale Solution for the FTDv ASAv on AWS.Deploy the ASAv Auto Scale Solution on AWS
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