... posting in a fresh thread Hi, We have a usecase to run multi-user workloads on mesos. Users provide docker images encapsulating application logic, which we (we = say some "Central API") schedule on Chronos / Marathon. However, we need to run some standard pre / post steps for every docker submitted by users. We have following options -
1. Ask every user to embed their logic inside a pre-defined docker template which will perform pre/post steps. è This is error prone, makes us dependent on whether the users followed template, and not very popular with users either. 2. Extend every user docker (FROM <>) and find a way to add pre-post steps in our docker. Refer this docker when scheduling on chronos / marathon. è Building new dockers does not scale as users and applications grow 3. Write a custom executor which will perform the pre-post steps and manage the user docker lifetime. è Deals with user docker lifetime and is obviously complex. Is there a standard / openly available DockerExecutor which manages the docker lifetime and which I can extend to build my custom executor? For instance, do you suggest extending https://github.com/apache/mesos/blob/master/src/docker/executor.cpp as a starting point? Can I access it in Java? This way I will be concerned only with my custom logic (pre/post steps) and still get benefits of a standard way to manage docker containers. Thanks and regards, Kapil Malik | [email protected]<mailto:[email protected]> | 33430 / 8800836581
