Creating Instances Using an Orchestration

To create multiple instances in Compute Classic, you must create the required resources (SSH public keys, storage volumes, security lists, and so on), define the attributes of the instances in an orchestration JSON file, add the orchestration to Compute Classic, and then start the orchestration.

Task	Procedure / CLI Command
1. Generate SSH key pairs.	See Generating an SSH Key Pair in Using Oracle Cloud Infrastructure Compute Classic.
2. Add the public keys to Compute Classic.	ssh-key add
3. (Optional) Create storage volumes for storing data and applications. Note that you can also create storage volumes and attach them after creating the instances.	storage-volume add
4. (Optional) Create boot disks. This step is required only if you want to set up the instances to boot from a persistent disk.	storage-volume add (with the `bootable` parameter set to `True`)
5. (Optional) Create security lists.	sec-list add
6. (Optional) Reserve the required number of public IP addresses. This step is required only if you want to assign a fixed public IP address to your instance.	ip-reservation add
7. Define the attributes of all your instances in an orchestration file, a text file in JSON format. These attributes include the instance shape; the machine image to be used to create the instance; and the SSH keys, IP address, storage volumes, and security lists that you want to attach.	See Building Your First Orchestration in Using Oracle Cloud Infrastructure Compute Classic.
8. Add the orchestration to the service.	orchestration add
9. Start the orchestration.	orchestration update
10. Monitor the status of the orchestration.	orchestration get After all the objects defined in the orchestration are created, the `status` of the orchestration changes to `ready`.