v0.7.1

This release of NRI Reference Plugins brings new features, a few bug fixes, and updates to the documentation.

Highlights

• balloons policy now supports assigning kernel-isolated CPU cores to balloons when available. To prefer isolated CPU cores for a balloon, use the new preferIsolCpus boolean configuration option. For instance,

balloonTypes:
  - name: high-prio-physical-core
    minCPUs: 2
    maxCPUs: 2
    preferNewBalloons: true
    preferIsolCpus: true
    hideHyperthreads: true
...

• balloons policy now supports assigning performance optimized or energy efficient CPU cores to balloons when available. For instance, to define a balloon with energy efficient core preference and another one with performance core preference use the new preferCoreType configuration option like this:

balloonTypes:
  - name: low-prio
    namespaces:
      - logging
      - monitoring
    preferCoreType: efficient
...
  - name: high-prio
    preferCoreType: performance
...

• Topology-aware policy now allocates CPU cores in clusters of shared last-level cache. Whenever this provides different grouping than the rest of the topology, for instance hyperthreads, the CPU allocator now divides cores into groups defined by shared last-level cache. The topology-aware policy tries to allocate as few LLC groups to a container as possible and tries to avoid sharing an LLC group by multiple containers.

What's New

• balloons: add support for isolated cpus. by @fmuyassarov in #344
• balloons: add support for power efficient & high performance cores by @fmuyassarov in #354
• cpuallocator: implement clustered allocation based on cache groups. by @klihub in #343

What Changed

Resource assignment policies should now try harder to detect when a new container is a restarted instance of an existing container which has just exited or crashed. This should fix problems where a crashing container could not be restarted on an nearly fully allocated node.

• deps: bump NRT dependencies to v0.1.2. by @fmuyassarov in #348
• topology-aware: add missing SingleThreadForCPUs() to mockSysfs. by @klihub in #349
• balloons: add support for isolated cpus. by @fmuyassarov in #344
• cpuallocator: implement clustered allocation based on cache groups. by @klihub in #343
• fixes: fix host-wait-vm-ssh-server, improve vm-reboot. by @klihub in #350
• fix: clean up plugin at the beginning/end of tests. by @klihub in #351
• doc: add availableResources in the balloons policy documentation by @askervin in #355
• build: allow building a single plugin image. by @klihub in #357
• balloons: add support for power efficient & high performance cores by @fmuyassarov in #354
• e2e: fix cni_plugin=bridge in provisioning a vm by @askervin in #359
• e2e: bridge CNI setup fixes for Fedora/containerd. by @klihub in #361
• e2e: use bridge CNI plugin by default. by @klihub in #362
• CI: verify in smaller steps, verify binary builds. by @klihub in #364
• resmgr: lifecycle overlap detection and workaround. by @klihub in #358

Full Changelog: v0.7.0...v0.7.1