Configuring SSH access for TAS for VMs

TAS for VMs supports SSH access into running apps to help troubleshoot apps hosted by a deployment.

You can configure a TAS for VMs deployment to allow SSH access to app instances, and configure load balancing for those app SSH sessions.

Configure TAS for VMs SSH access

You can configure TAS for VMs to activate or deactivate deployment wide SSH access to app instances. In addition to this deployment wide configuration, Space Managers have SSH access control over their Space, and Space Developers have SSH access control to their apps. For details about SSH access permissions, see App SSH Overview.

To configure TAS for VMs SSH access for app instances:

1. Go to the Tanzu Operations Manager Installation Dashboard.

2. Click the TAS for VMs tile.

3. Select App Containers.

4. Activate or deactivate the Allow SSH access to app containers check box.

5. Optionally, select the Allow SSH when an app is created check box to activate SSH access for new apps by default in spaces that permit SSH. If you deselect this check box, developers can still activate SSH after pushing their apps by running cf enable-ssh APP-NAME, where APP-NAME is the name of the app for which they want to enable SSH.

Configure an SSH load balancer

For IaaSes where load balancing is available as a service, you can provision a load balancer to balance load across SSH proxy instances. Configure this load balancer to forward incoming TCP traffic on port 2222 to a target pool where you deploy diego_brain instances.

For AWS, Azure, and GCP IaaSes, you configure SSH load balancers in the Resource Config pane. To register SSH proxies with a load balancer:

1. Select Resource Config.

2. Expand the row for the job that handles SSH requests. This depends on the TAS for VMs release you are using:

   • TAS for VMs: Click the icon next to Diego Brain.
   • Small Footprint TAS for VMs: Click the icon next to Control.

3. Enter your load balancer name in the Load Balancers field.

Tanzu Operations Manager supports an API-only nsx_lbs field. You can configure load balancers in vSphere using this field.