The database engine to use for your custom engine version (CEV). The only supported value is <code>custom-oracle-ee</code>.

The name of your CEV. The name format is 19.<i>customized_string</i>. For example, a valid CEV name is <code>19.my_cev1</code>. This setting is required for RDS Custom for Oracle, but optional for Amazon RDS. The combination of <code>Engine</code> and <code>EngineVersion</code> is unique per customer per Region.

The name of an Amazon S3 bucket that contains database installation files for your CEV. For example, a valid bucket name is <code>my-custom-installation-files</code>.

The Amazon S3 directory that contains the database installation files for your CEV. For example, a valid bucket name is <code>123456789012/cev1</code>. If this setting isn't specified, no prefix is assumed.

The ID of the Amazon Machine Image (AMI). For RDS Custom for SQL Server, an AMI ID is required to create a CEV. For RDS Custom for Oracle, the default is the most recent AMI available, but you can specify an AMI ID that was used in a different Oracle CEV. Find the AMIs used by your CEVs by calling the <a href="https://docs.aws.amazon.com/AmazonRDS/latest/APIReference/API_DescribeDBEngineVersions.html">DescribeDBEngineVersions</a> operation.

<p>The Amazon Web Services KMS key identifier for an encrypted CEV. A symmetric encryption KMS key is required for RDS Custom, but optional for Amazon RDS.</p> <p>If you have an existing symmetric encryption KMS key in your account, you can use it with RDS Custom. No further action is necessary. If you don't already have a symmetric encryption KMS key in your account, follow the instructions in <a href="https://docs.aws.amazon.com/kms/latest/developerguide/create-keys.html#create-symmetric-cmk"> Creating a symmetric encryption KMS key</a> in the <i>Amazon Web Services Key Management Service Developer Guide</i>.</p> <p>You can choose the same symmetric encryption key when you create a CEV and a DB instance, or choose different keys.</p>

An optional description of your CEV.

<p>The CEV manifest, which is a JSON document that describes the installation .zip files stored in Amazon S3. Specify the name/value pairs in a file or a quoted string. RDS Custom applies the patches in the order in which they are listed.</p> <p>The following JSON fields are valid:</p> <dl> <dt>MediaImportTemplateVersion</dt> <dd> <p>Version of the CEV manifest. The date is in the format <code>YYYY-MM-DD</code>.</p> </dd> <dt>databaseInstallationFileNames</dt> <dd> <p>Ordered list of installation files for the CEV.</p> </dd> <dt>opatchFileNames</dt> <dd> <p>Ordered list of OPatch installers used for the Oracle DB engine.</p> </dd> <dt>psuRuPatchFileNames</dt> <dd> <p>The PSU and RU patches for this CEV.</p> </dd> <dt>OtherPatchFileNames</dt> <dd> <p>The patches that are not in the list of PSU and RU patches. Amazon RDS applies these patches after applying the PSU and RU patches.</p> </dd> </dl> <p>For more information, see <a href="https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/custom-cev.html#custom-cev.preparing.manifest"> Creating the CEV manifest</a> in the <i>Amazon RDS User Guide</i>.</p>