International Business Machines Corporation

Hemant K Shaw

Pradipta Kumar Banerjee

Harshal S Patil

Sudipta Biswas

Manjunath Kumatagi

Method, apparatus, and computer program product are provided for dynamically changing containerized workload isolation in response to detection of a triggering factor. In some embodiments, workload is containerized using a default container runtime (e.g., runC) that spawns one or more cgroup-based containers on a compute node using resource limiting capabilities of the compute node's host kernel including cgroups and namespaces. In some embodiments, in response to a triggering factor, such as a host kernel vulnerability, at least some of the containerized workload is migrated from running in the one or more cgroup-based containers to one or more virtual machines (VMs) launched by a standby container runtime (e.g., runV). In some embodiments, the cgroups and namespaces of the one or more cgroup-based containers are live migrated, without service interruption, to one or more VM runtimes on the one or more VMs using CRIU&#x2014;checkpoint/restore in userspace.

Dynamically changing containerized workload isolation in response to detection of a triggering factor

An apparatus for implementing a user policy includes a policy module that issues a user policy for a plurality of computing devices. Two or more of the computing devices have different hardware configurations. The apparatus includes a soft metrics module that, in response to the user policy, sends soft metrics for a computing device of the plurality of computing devices, to determine if the computing device complies with the user policy, where the soft metrics are specific to a hardware configuration of the computing device. The apparatus includes an operational data module that receives, from the computing device, operational data responsive to the soft metrics, and a compliance module that analyzes the operational data to determine if the computing device complies with the user policy.

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Karnataka, India

Hemant K Shaw