Hello and welcome. In this demonstration, I'll show you how to create a preemptible instance. Let's get started. As you can see, currently I am in the OCI console and I'm logged in as the compute admin. I'll click on the hamburger menu, click on "Compute". Under compute, click on "Instances", click on "Create instance". I'll give it a name, preemptable-demoinstance. I am okay with ociarchassociate compartment. If I go to the placement and click on "Edit", I can select the availability domain of my choice. Click on "Show Advanced Options". Under capacity type, rather than selecting on-demand capacity, I will select preemptable capacity. Then there is also an option whether you want to permanently delete the attached boot volume when the capacity is reclaimed. By default, it is selected. Under fault domain, you can let Oracle choose the best fault domain. Under image and shape, you can select the appropriate image and the shape as per your requirement. Under networking, if I click on "Edit", I can select an existing virtual network, demovcn, and I can select an existing subnet, subnetA. I can also choose to assign a public IP address. With respect to SSH keys, let me very quickly generate one. I'll use this command to generate a key pair. Here you can see the private and the public key. Let me just copy. I'm going to paste it over here. You can also specify custom boot volume size. By default, the boot volume size is 46.6 GB, but you can specify any integer between 50-32 GB. Let me go ahead and specify 100 GB. You can also choose to use in-transit encryption. You can also encrypt the volume with a key that you manage, meaning customer managed keys. Let me click on "Create" instance. Currently, the preemptible-demoinstance is provisioning. Now you can see that the preemptible-demoinstance is running. Just want to highlight that some actions are not allowed for preemptible instances. For example, you cannot start, you cannot stop, you cannot reboot the instance. If the capacity is reclaimed in less than a minute, you are not charged for that time. If I click on "Edit", I'll just be able to edit the name of the preemptible instance. That's it. Now let me go ahead and connect to this instance. I'll copy the public IP address. Opc is the username. There you go. I'm connected to the preemptible-demoinstance. If you look at the preemptible-demoinstance, under instance inflammation, you can see that the capacity type is preemptable. Now, let me show you one last thing. For that, I will log out of the compute admin user. Let me sign out and let me login as a tenancy administrator. If I click on the hamburger menu, go to Observability and Management. Under Events Service, click on "Rules". Let me click on "Create Rule". Let me call it preemptablerule. I can provide a description, send a notification when a preemptible instance is terminated. The condition is event type, the service name, select compute. I can select instance and then preemption action. This is a rule condition. Under action, you can select either streaming, notification, or you may trigger functions. Let me click on Notifications. Let me select the compartment and let me select the topic. Let me create the rule. Now when you create this preemptablerule, an instance preemption action event is emitted 30 seconds before the instance termination begins. This marks the end of this demonstration where we looked at how we can create a preemptible instance and how we can use the events service to receive notifications when a preemptible instance is terminated. Thanks for watching.
