You can run confd_cli in a batch mode upon device startup to process your configuration CLI commands.
Following is a snippet of what is described in 16.4.1, Starting the CLI, of the ConfD User Guide:
The confd_cli program can also be used for batch processing of CLI commands, either by storing the commands in a file and running confd_cli on the file, or by having the following line at the top of the file (with the location of the program modified appropriately):
In addition, the SCRIPTING section of the man pages for confd_cli shows how to execute CLI commands in non-interactive mode from a shell script.
You can also use the confd_load command line utility to load the configuration in CLI configuration format. Refer to vol. 1 of the man pages for confd_load for more information.