The final installment of a blog series explores automating the unsealing and snapshotting of HashiCorp Vault using HashiCorp Nomad and a tool called Vault Unsealer. This series previously covered deploying infrastructure and running Vault as a Nomad job, and now it delves into automating operational tasks such as unsealing Vault servers and taking data snapshots. Vault Unsealer automates the unsealing process by using unseal keys and the Vault API, which is particularly useful for organizations that cannot use auto-unseal due to security policies or costs. The blog also outlines how to configure a Nomad job to take regular backups of Vault data, using Terraform for deployment and workload identity for authentication. The series highlights the benefits of running Vault on Nomad, offering a streamlined approach to managing Vault servers, and suggests that smaller organizations with limited resources might benefit from this setup. Additionally, it touches on the potential of using HashiCorp Vault as a certificate authority within GitHub Actions workflows and the importance of security automation in building reliable infrastructure.