oam/knowledge base/cloud computing/oci

Oracle Cloud Infrastructure

1. Concepts
   1. Compartments
   2. Networking
      1. Access to the Internet
2. Further readings
   1. Sources

Concepts

Compartments

Compartments are tenancy-wide and extend across regions.
They can be nested to create hierarchies up to 6 levels deep.

After creating a compartment, one needs to write at least one (access) policy for it; until then, no one can access it but administrators or users with permissions at the tenancy level.
When creating sub-compartments, users inherit access permissions from compartments higher up their hierarchy.

Before deleting a compartment, all resources in it must have been moved, deleted or terminated.
This includes any policies attached to the compartment itself.

Networking

Access to the Internet

Resource	Used for	Free-tier limit
Internet Gateway	public resources that need to be reached from the internet	?
NAT Gateway	resources that need to reach the internet but are not reachable from the internet	0 (not available)
Bastion	resources that require Secure Shell (SSH) access but otherwise are not reachable from the internet	5

Further readings

• oci-cli
• Compute images
• Connect to private compute instances using OCI Bastion Service
• Running Commands on an Instance

Sources

• Required keys and OCIDs