In order to include secret values in NaC:
1. Create env variable and assign secret value to it
2. Reference env variable in your datamodel
```yaml
apic:
access_policies:
mcp:
key: !env MCP_KEY
```
3. In CI/CD platform, ensure this value it properly set for particular task.
`!env` feature is supported by `yaml_merge` provided by netascode utils provider.
### Reference
1. [BRKCDN-2673 - Page 19](https://www.ciscolive.com/c/dam/r/ciscolive/emea/docs/2024/pdf/BRKDCN-2673.pdf)
2. [yaml_merge - Terraform docs](https://registry.terraform.io/providers/netascode/utils/latest/docs/data-sources/yaml_merge)