Aria Suite Lifecycle Manager UI inaccessible after reverting to snapshots and rebooting

Products

• VCF Operations/Automation (formerly VMware Aria Suite)

Issue/Introduction

• The GUI and the SSH of the VM are not reachable. The VM is only reachable via the Console from vCenter
• Networking configuration missing when running command /opt/vmware/share/vami/vami_config_net
• Required ports listed at ports.broadcom.com are open
• Applying the steps in KB Aria Suite Lifecycle Manager appliance network configuration lost loses IP after upgrading from version 8.16.0 to 8.18. does not resolve the issue 

Environment

Aria Suite Lifecycle Manager 8.18.x

Cause

/etc/systemd/network/10-eth0-static.network file was missing entries for Domains and Gateway

Resolution

1. Take snapshot of Aria Suite Lifecycle Manager.  You can use the following KB as a guide Managing snapshots in vSphere Web Client 
2. Navigate to vCenter where Aria Suite Lifecycle Manager is hosted and locate the Aria Suite Lifecycle Manager appliance
3. Open the web/remote console for the Aria Suite Lifecycle Manager appliance 
4. Sign in as root
5. Edit the file /etc/systemd/network/10-eth0.network to add in Domains and Gateway fields under Network , then set those entries with the correct value 

   [Match]
   Name=eth0
   
   [Network]
   Domains=domain.com
   Gateway=###.###.###.###
   Address=###.###.###.##/24
   LinkLocalAddressing=no
   DHCP=no
   [DHCP]
   UseDNS=false

6. Restart the networkd service by running command systemctl restart systemd-networkd.service .

Note: if you receive the error "failed to start systemd-networkd.service unit systemd-networkd.service not found" please try  sudo systemctl stop systemd-networkd.service and then sudo systemctl start systemd-networkd.service .