![]() One is what we call the system Docker which runs as the first process. We accomplish this by launching two instances ofĭocker. How this worksĮverything in RancherOS is a Docker container. Everything else can be pulled in dynamically through Docker. This keeps the binary download of RancherOS very small. RancherOS includes only the bare minimum amount of software needed to run Docker. This includes system services such as udev and rsyslog. Everything in RancherOS is a container managed by Docker. The smallest, easiest way to run Docker in production at scale. As such, most ISVs have not certified their software to run on RancherOS, nor does RancherOS even contain the necessary components for many of these applications to run. It was not designed to be used as a general purpose OS (such as CentOS or Ubuntu). ISV Support - RancherOS was specifically designed as a minimalistic OS to support purpose-built containerized applications.RancherOS 1.x, which was specifically designed around using Docker engine only, unfortunately does not lend itself, in its current design, to this new evolving requirement. Container runtimes like containerd and CRIO are now being actively considered as the default choice. ![]() Docker - The current industry requirements for a container runtime are very much evolving.There are two significant reasons behind this product decision: RancherOS 1.x is no longer being actively maintained.
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