1. Migrating Oracle SOA Cloud Service Instances to Oracle Cloud Infrastructure
  2. Prepare to Migrate an Oracle SOA Cloud Service Classic Instance to Oracle Cloud Infrastructure
  3. Design the Oracle Cloud Infrastructure Network

Design the Oracle Cloud Infrastructure Network

Before you migrate your service instances from Oracle Cloud Infrastructure Classic to Oracle Cloud Infrastructure, you must design and implement a virtual cloud network (VCN) to support your migrated service instances.

You can create new Oracle Cloud Infrastructure compartments, VCNs, and subnets for your service instances, or you can use existing ones. See these topics in the Oracle Cloud Infrastructure documentation:

Consider the following guidelines when you create or select a network for your service instances:

  • If instances communicate using the default shared network in Oracle Cloud Infrastructure Classic, then use a single subnet for these instances.
  • If instances are on separate IP networks in Oracle Cloud Infrastructure Classic, then use separate subnets for these instances.
  • A VCN should have an address range that includes all of the IP networks in Oracle Cloud Infrastructure Classic that need to communicate. Alternatively, configure peering between multiple VCNs.
  • A subnet should have at least the same number of addresses as the corresponding IP network in Oracle Cloud Infrastructure Classic.
  • If an instance was created in Oracle Cloud Infrastructure Classic without public IP addresses, then use a private subnet for this instance.
  • If custom access rules were created for an instance in Oracle Cloud Infrastructure Classic to control communication to or from the instance, then create a security list in Oracle Cloud Infrastructure and assign the security list to the appropriate subnets. To use custom security lists, you must assign the instance to a custom subnet, and not the default subnet.

Before you create service instances in Oracle Cloud Infrastructure that use your new network resources, you must create policies that grant your service access to these resources. See Prerequisites for Oracle Platform Services in the Oracle Cloud Infrastructure documentation.