An introduction to the products and features of HP-UX Containers
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Figure 3: System container file system layout
Workload containers
Workload containers provide a lightweight workload hosting environment. All workload containers share their file
system view, hostname, IPC namespace, and service daemons with the global. A workload container has restricted
access and view of these resources, rather than a virtualized view. This restricted view of a workload container can
be customized to meet the workload’s requirements. For example, it is possible to allow one workload container to
open IPC communications with another workload container, something that is not supported with system containers.
Like all containers, a workload container has a private directory under /var/hpsrp that is only accessible by that
container. Because workload containers share the entire file system with the global and other workload containers,
they can share application directories with other workload containers. For example, the /opt/my_application
directory is shared across all workload containers. See figure 4 for a detailed layout of a workload container file
system access.
You can create a workload container very quickly and it requires little disk space. Upfront application deployments
can require customization compared to other container types. However, ongoing maintenance of a workload
container is typically less than other container types as most system administration activities for workload containers
are shared with the global view.