I have used Ansible to build and configure a single node of a RAC for my OCM 12C studies.
Although my solution has a few rough edges, it does reliably build a single RAC node.
This is a technical note about unusable indices in transportable tablespaces. The presence of these cause the import to report errors. This bug is fixed in 18.2.
This is a short technical note about about resolving ORA-16714: the value of property %s is inconsistent with the database setting errors in DataGuard configurations.
This is a short technical note about some issues I had with the _fix_control parameter.