This document provides an overview of containerization and container orchestration technologies. It discusses schedulers like Kubernetes, Docker Swarm and Mesos and how they provide services for scheduling, resource management and service discovery. It also covers container networking with options like Flannel, Calico and WeaveNet. Container security topics like host security, Docker daemon security and container image security are outlined. Micro operating systems designed for containers like CoreOS, RancherOS and Ubuntu Snappy are presented. PaaS solutions like Convox and Docker Data Center are mentioned. The document is intended to provide information on containerization in no particular order.