Meetup Mesos : Mesos, Chronos and Marathon in CI/CD factory

Les Meetups Veille Techno’

Meetup Veille Techno’

Mesos, Chronos and MarathonIntegration in CI/CD factory


Principles• Open to all : everybody’s welcome !– Speakers– Attendees

• Based on BBL– A cutting edge technology– A concept introduced in a customer

• There’s a groupe on Yammer !


Now let’s deep dive…


What is Mesos ?Apache Mesos is an open-source cluster manager that was developed at the University of California, Berkeley. It "provides efficient resource isolation and sharing across distributed applications, or frameworks". The software enables resource sharing in a fine-grained manner, improving cluster utilization.


Who use Mesos ?


But wait…


Zookeeper

Apache ZooKeeper is a software project of the Apache Software Foundation, providing an open source distributed configuration service, synchronization service, and naming registry for large distributed systems.


Marathon

Marathon is an Apache Mesos framework for long-running applications. Given that you have Mesos running as the kernel for your datacenter, Marathon is the init or upstart daemon.


Chronos• Chronos is a replacement for cron. It is a

distributed and fault-tolerant scheduler that runs on top of Apache Mesos that can be used for job orchestration.


Other Frameworks


Mesosphere DCOS


Now, we are ready !


Example Architecture


How does it work ?


How does it work ?


Jenkins on Mesos

Put simply, whenever the Jenkins Build Queue starts getting bigger, this plugin automatically spins up additional Jenkins slave(s) on Mesos so that jobs can be immediately scheduled


Why Jenkins on Mesos ?• Provide high availability– Built-in Mesos– No more fancy architecture

• Mesos provide optimal utilization of resources– Most of the time, slaves are idle

• Build slave management is a nightmare





A concrete example


A concrete example




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Meetup Mesos : Mesos, Chronos and Marathon in CI/CD factory