Docker this week announced the first update to its rebranded flagship platform with the release of Docker Enterprise Edition (EE) 17.06. Back in March, Docker rolled out the first Docker EE, built on the backs of what had been known as Docker Commercially Supported and Docker Datacenter.

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You could call this Docker’s coming out party for the enterprise. Earlier this year, the company released a consolidated Docker Enterprise Edition, gathering its corporate container technologies into a single platform and brand. Wednesday, that platform was further updated to include Z System support, policy management, and multitenancy, thus creating a cross-platform management system for enterprise applications.

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At Ygrene, we build javascript code all day long. We do that with the help of Bitbucket, Bamboo CI server, and Docker. As many of you know, the first step in any modern javascript build is `npm install`. This fills your drive thousands of tiny javascript files, executables and whatever else. Each one of those files has a complete set of metadata and permissions assignments. When using Docker you will notice that all your commands run as root by default. This causes file permissions errors. Due to this fact, created files will now have a root or ‘0’ `uuid` the surrounding CI server thinks they belong to root. For subsequent npm scripts the errors were of the class:

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On June 28 Docker 17.06 CE was released, which among other improvements adds support for multi-stage image builds. While traditional docker builds had to use a single container for their work and output, multi-stage builds allow the use of intermediate containers to generate artifacts. Artifacts from intermediate containers are then copied into the final build image, meaning one needn’t ship the intermediate tools in the final image. While the community has found ways to perform multi-stage builds in prior versions of Docker, this is the first time that multi-stage builds can be accomplished in a single Dockerfile. By placing all of the build logic in a single Dockerfile we can use build tools without fear of bloating the output image, and make strong integrations in build pipelines that accept Dockerfiles, even for complex builds.

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Thanks to Docker, containers are now the future of web development. According to DataDog, 15% of hosts run Docker, which is significantly up both from the 6% of hosts running it at this point in 2015 and the 0% of hosts running it before it was released in March of 2013. LinkedIn has also seen a 160% increase in profile references to Docker in just the past year alone, indicating it’s becoming much more important to know something about Docker when looking for work.

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