Manually orchestrating networks, volumes, and dependencies for multiple interconnected containers using imperative commands introduces operational inefficiencies and untraceable configuration drift. Modern DevSecOps engineering requires a declarative infrastructure, and the Compose execution layer within Docker and Podman serves as a fundamental engine for multi-service environments. This chapter explores multi-container orchestration by implementing a complex artifact management platform: Pulp 3. You’ll examine how to configure this advanced repository manager to establish fully self-hosted, secure software distribution channels, ensuring strict version compliance and mitigating third-party supply-chain risks within deployment workflows. Operating this infrastructure on-premises highlights a critical dependency layer required to support Cloud Repatriation strategies, enabling organizations to decouple their delivery systems from public cloud providers. Whether you’re a student transitioning from isolated container runs or an experienced administrator automating local software repositories without public internet dependencies, this chapter provides the technical framework needed to govern predictable, resilient, and sovereign multiservice architectures.