Stack Update with VM-Series Auto Scaling Template for AWS
(v2.1)
A stack update allows you to modify the resources
that the VM-Series Auto Scaling template firewall template deploys.
Instead of deleting your existing deployment and redeploying the
solution, use the stack update to modify launch configuration parameters.
You
can modify the AWS instance type, the key pair for your auto scaling
groups, and the APi key associated with the adminstrative user account
on the firewall.
You do not have to update the stack
to modify default notifications or create auto scaling alarms. See Change Scaling Parameters and CloudWatch Metrics (v2.1).
When
you deploy the VM-Series Auto Scaling template, the auto scaling
groups and the launch configuration are automatically created for
you. The launch configuration is a template that an auto scaling
group uses to launch EC2 instance, and it specifies parameters such
as the instance type, the key pair for your auto scaling group,
or the API key associated with the administrative user account on
the firewall.
For critical applications,
perform a stack update during a maintenance window.
You
can update your stack directly or create change sets. The
workflow in this document takes you through the manual stack update.
- In the AWS CloudFormation console, select the parent stack that you want to update and choose .
- Modify the resources that you want to update.You can modify the instance type, security group, key pair for the stack resources, or the API key associated with the administrative user account on the firewall.If you create a new administrative user account or modify the credentials of the existing administrator on the firewall, in order to update that stack and deploy new firewalls with the updated API key, you need to follow the workflow in Modify Administrative Account (v2.1).
- Acknowledge the notifications and review the changes and clickUpdateto initiate the stack update.
