Cloud Foundry for Developers

Dependency management

As part of the original 12-factor principle, it mandates that an application's dependencies should be clearly defined and not rely on a system-wide packaging/location. For example, don't rely on some location on disk, like /usr/local/lib, or the Global Assembly Cache (GAC) for .NET Applications, where dependency location is known and expected to always exist. This is because these locations are unlikely to be set up or exist when migrating to a Cloud platform. In modern dependency management, we have Maven/Gradle/NuGet for Java and .NET applications, respectively, where dependencies are defined and are pulled in during a build. Later in Chapter 9, Buildpacks, we will explore the concept of buildpacks, which set up dependency ...