You’re in the Layout section. From here, you can create your first Oracle CDB.
Quick reminder: A Container Database (CDB) is a single database that holds one or more Pluggable Databases (PDBs).

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Select Add a new cluster button on the right side of the screen. A new window will open.

As you can see, there are eight node types to choose from. 123 Cluster includes the most relevant and widely used technologies for your infrastructure needs. The list includes: PostgreSQL, Elasticsearch, MySQL, Redis, MariaDB, Oracle, SQL Server, and MongoDB.
Select Oracle icon and press Next.

The Select install mode of cluster menu will appear.
There are two options:

• Add existing Database
• Install new CDB

The Add Existing Database option lets you connect a database that already exists outside the 123Cluster environment.
::: Use this option if you already have a database hosted outside 123Cluster.
The Install new CDB option will create a Container Database (CDB) that holds one or more Pluggable Databases (PDB).
::: This option is useful when your task requires replication.

After that select Next and Select the service type - PROXMOX
Now you have to select OS version.

The new window will appear: type CDB Name, then type PDB Name, create an OS Password and select Next.

The new window will appear, you need to create four different passwords:

• Database Password
• User Sys Password
• System User Password
• PDB Admin Password

Quick reminder: Make sure to note and save these passwords securely.

::: Install from - Choose between Local or Network repository.
::: Oracle Edition - Choose suitable Oracle version: Express, Standard or Enterprise.

In this window you can choose the Сluster size: small, medium or large.
Click on the Rest API icon.

• You can paste generated code for use in automation in your preferred DevOps tool.

Finally, select Submit to finalize your installation.

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Your installation path will look like this:
Add a new cluster → Choose node type → Select install mode → Select service type → Choose OS version → Enter cluster details → Click Submit

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