How can I optimize the deployment process of a microservices architecture using HashiCorp tools?

I’m currently working on a software development project that involves deploying a microservices architecture. We’re using various HashiCorp tools, including Terraform for infrastructure as code and Consul for service discovery. However, we’re encountering challenges with optimizing our deployment pipeline to ensure smooth scaling, efficient resource usage, and minimal downtime. I’m particularly interested in best practices for integrating HashiCorp Vault for secrets management and Nomad for orchestrating containers within our CI/CD pipeline. Any insights, experiences, or recommendations from the community would be greatly appreciated.