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UPGRADE.md

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Upgrading your AccessTier

This document explains how to upgrade your AccessTier to a newer version with zero downtime.

  1. (Optional) If you have pinned your deployment to a particular version of Netagent, update the value of package_name to match the version you want to deploy.

    module "aws_accesstier" {
    package_name = "banyan-netagent-1.26.1"
}

  2. Run terraform plan to confirm that only the auto-scaling group and launch configuration will be updated:

    Terraform will perform the following actions:

# aws_autoscaling_group.asg will be updated in-place
# aws_launch_configuration.conf must be replaced

  3. Run terraform apply to update the ASG and launch configuration.

  4. Open the AWS management console in your browser. Navigate to EC2 > Auto-Scaling Groups and select your ASG. Click on Instance refresh.

  5. Click the Start instance refresh button. Change the minimum healthy percentage to 50% and the instance warmup time to 180 seconds. Click Start.

  6. After a few minutes, the status of the instance refresh should change to "Successful".

  7. Log into the Banyan Command Center to verify that the new AccessTier instances are reporting. Navigate to Directory & Infrastructure > AccessTiers to see them.