Open Container Initiative (OCI) Reviews

rkt is an application containers engine that was developed for modern production cloud environments. It is pod-native, pluggable execution environments, and a well-defined area that allows for easy integration with other systems. The pod is the core execution unit of RKT. It is a collection or applications that execute in a shared context. (Pods in Kubernetes orchestration software are synonymous with rkt's pods). rkt lets users apply different configurations (such as isolation parameters) at both the pod-level and per-application levels. Rkt's architecture allows each pod to execute in the Unix process model (i.e. There is no central daemon, and each pod executes in its own isolated environment. rkt implements an open container format called the App Container (appc spec), but can also execute other container images such as those created with Docker.

A Moby Project engine from Docker that is specifically designed for embedded and IoT use. It is 3.5x smaller than Docker CE and packaged as one binary. There are many chipset architectures that can be used to support everything from small IoT devices to large industrial gateways. Bandwidth-efficient updates using binary diffs are 10-70x less than pulling layers in most scenarios. To prevent unnecessary writing to disk, extract layers as they arrive. This protects your storage from possible corruption. In the event of power outage, durable and atomic image pulls protect against partial container pulls. Image pull prevents page cache thrashing, so your application runs unaffected in low-memory environments. balenaEngine, a new container engine designed for embedded and IoT use and compatible with Docker containers, is now available. BalenaEngine, which is based on Docker's Moby Project technology, supports container deltas that provide 10-70x more efficient bandwidth usage.