David Chung

InfraKit and Docker Swarm Mode: A Fault-Tolerant and Self-Healing Cluster

Back in October 2016, Docker released Infrakit, an open source toolkit for creating and managing declarative, self-healing infrastructure. This is the second in a two part series that dives more deeply into the internals of InfraKit. Introduction In the first installment of this two part series about the internals of InfraKit, we presented InfraKit’s design, architecture, and approach to high availability.  We also discussed how it can be combined with other systems to give distributed computing clusters self-healing and self-managing properties. In this installment, we present an example of leveraging Docker Engine in Swarm Mode to achieve high availability for InfraKit, which in turn enhances the Docker Swarm cluster by making it self-healing.   Docker Swarm Mode and InfraKit One of the key architectural features of Docker in Swarm Mode is the manager quorum powered by SwarmKit.  The manager quorum stores Continue reading…

Lisa McNicol

Docker Online Meetup recap: Introducing Docker 1.13

Last week, we released Docker 1.13 to introduce several new enhancements in addition to building on and improving Docker swarm mode introduced in Docker 1.12. Docker 1.13 has many new features and fixes that we are excited about, so we asked core team member and release captain, Victor Vieux to introduce Docker 1.13 in an online meetup. The meetup took place on Wednesday, Jan 25 and over 1000 people RSVPed to hear Victor’s presentation live. Victor gave an overview and demo of many of the new features: Restructuration of CLI commands Experimental build CLI backward compatibility Swarm default encryption at rest Compose to Swarm Data management commands Brand new “init system” Various orchestration enhancements In case you missed it, you can watch the recording and access Victor’s slides below.   Below is a short list of the questions asked to Victor at Continue reading…