According to 2018 reports Docker is the most popular container platform constituting 83% of container space. It’s preferred because of the ease with which the user can work with. Docker also provides greater isolation between the containers on the same host operating system. Few of the other popular ones are CoreOS rkt
12 percent of production containers were rkt (pronounced “Rocket”) from CoreOS. rkt supports two types of images: Docker and appc. The main advantage of rkt is its usage with Kubernetes.In Kubernetes, an rkt container runtime can be declared as
“ kubelet --container-runtime=rkt”.
Compared with Docker, rkt has fewer third-party integrations. Red Hat recently acquired CoreOS. Application Container Image or appc is defined by the App Container spec. An ACI contains all necessary files to execute an application and an image.
Mesos Containerizer : 4 percent of production containers were Mesos from Apache. Mesos supports both Docker and appc image types. It works better with the frameworks of big data applications. Mesos is not a standalone container and requires the Mesos framework to make it run.
LXC Linux Containers : 1 percent of containers were LXC Linux Containers. LXC also has a great active community around it. The main disadvantage of LXC is its incompatibility with Kubernetes.
