First off, the external containerizer was officially removed in Mesos 1.1.0 (it had been deprecated long before that release): https://issues.apache.org/jira/browse/MESOS-3370
--- If you want to develop/deploy a new isolation method for Mesos, you should first consider writing isolator modules (Mesos modules): https://github.com/apache/mesos/blob/master/include/mesos/slave/isolator.hpp Isolator modules are only applicable for the Mesos containerizer, so if you plan to run docker workloads, you can consider using built-in isolators ("docker/runtime") that support running docker images in the Mesos containerizer. If you plan to use the Docker containerizer, your only choice is to develop a custom executor to isolate tasks only within the same executor (docker will take over isolating executors from each other). --- There are few benefits from running the Mesos agent inside a Docker container and many pitfalls, so this practice is highly discouraged. Instead, we recommend running the Mesos agent directly via a supervisor (upstart, systemd, etc.). The agent itself is not containerized when run normally. On Sun, Aug 6, 2017 at 4:32 PM, Thodoris Zois <z...@ics.forth.gr> wrote: > Hello, > > Is support of external containerizer removed from Mesos? Also, i have > developed some isolators that i would like to use with Mesos. I found 3 > ways to do that but i don't know what is the proper way and what are the > advantages and disadvantages in each case. > > The 1st one is as a Mesos module > > The 2nd one is a custom executor > > The 3rd one is the container image on agent. > > What i am trying to do is to isolate docker tasks (images - one task per > docker container) that run under the same agent with my own isolators. > > What are the benefits of running agent in a big docker container and > inside small docker containers as tasks? If you don't run the agent under > a big docker container then by default is running under Mesos container > while inside are running small docker containers with tasks? (Assume > that we don't run tasks under mesos container) > > > Thank you and sorry for the so many questions! > Thodoris >
