Docker revolutionized how developers and operations teams build, ship, and run applications, enabling them to leverage the latest advancements in software development: the microservice architecture style, the immutable infrastructure deployment style, and the DevOps cultural model.
Existing software layers are not a great fit to leverage these trends. Infrastructure as a service is too low level; platform as a service is too high level; but containers as a service (CaaS) is just right. Container images are just the right level of abstraction for DevOps, allowing developers to specify all their dependencies at build time, building and testing an artifact that, when ready to ship, is the exact thing that will run in production. CaaS gives ops teams the tools to control how to run these workloads securely and efficiently, providing portability between different cloud providers and on-premises deployments.
Patrick Chanezon offers a detailed overview of the latest evolutions to the Docker ecosystem enabling CaaS: standards (OCI, CNCF), infrastructure (runC, containerd, Notary), platform (Docker, Swarm), and services (Docker Cloud, Docker Datacenter). Patrick ends with a demo showing how to do in-container development of a Spring Boot application on a Mac running a preconfigured IDE in a container, provision a highly available Swarm cluster using Docker Datacenter on a cloud provider, and leverage the latest Docker tools to build, ship, and run a polyglot application architected as a set of microservices—including how to set up load balancing.
Patrick Chanezon is member of the technical staff at Docker Inc., where he helps to build Docker, an open platform for distributed applications for developers and sysadmins. A software developer and storyteller, Patrick spent 10 years building platforms at Netscape and Sun and 10 more evangelizing platforms at Google, VMware, and Microsoft. His main professional interest is in building and kickstarting the network effect for these wondrous two-sided markets called platforms. Patrick has worked on platforms for portals, ads, commerce, social, the Web, distributed apps, and the cloud.
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