Docker containers are created from Docker images. Many enterprise tools have also grown up around Docker to make it easier to manage and orchestrate complex distributed and clustered applications architectures.ĭocker utilizes a client-server architecture and a remote API to manage and create Docker containers and images. Docker runs natively on Linux since Docker was originally built on Linux containers but it also works on Mac and Windows. Like the popular version control software Git, Docker has a social aspect in that developers and sysadmins can share their images via Docker Hub.ĭocker is an open source solution that is available as the free Community Edition or the subscription based Enterprise Edition for multiple platforms. These lightweight virtual machines can be promoted through testing and production environments where sysadmins deploy and run them.ĭocker makes it easier for organizations to automate infrastructure, isolate applications, maintain consistency, and improve resource utilizations. It provides tools for simplifying DevOps by enabling developers to create templates called images that can be used to create lightweight virtual machines called containers, which include their applications and all of their applications’ dependencies. This is a guest post by Dieter Reuter, Senior Consultant at Hypriot.Īt Hypriot we recently built and released our own OS image to run the Docker Engine on a low-cost Raspberry Pi and labeled it HypriotOS.Almost overnight, Docker has become the de facto standard that developers and system administrators use for packaging, deploying, and running distributed and cloud native applications. Just download, extract, flash to a SD card and boot your Raspberry Pi - and within minutes you have Docker up and running and you can instantly start using it.Ī user can download this pre-compiled Raspbian based SD card image, which includes a Linux 3.18.8 kernel with all Docker related kernel options included, and Docker 1.5.0 is already enabled with Overlay filesystem. You can read more details and find the download links in our blog post Heavily ARMed after major upgrade: Raspberry Pi with Docker 1.5.0.Īs developers and geeks, we’re really comfortable using SSH and a bash shell to control the Docker CLI. It’s also not a problem to connect a Linux or Mac OS X host via a native Docker CLI over the network, even a Windows client works well. But what about the normal end users? Wouldn’t it be great to have a more convenient way to use a graphical frontend via web or a specific app. A GUI would be really cool, but this would take a long time to develop. Kitematic to the RescueĮven the fact that our OS image works pretty much out of the box, and everybody can use Docker within minutes we’ve received a lot of feedback, whether we could build and deliver a graphical application to control Docker and deploying apps/containers with it. We’ve just read the announcement on the Docker blog and were extremely impressed but also a little bit frustrated, it’s only meant to be used on a Mac running it’s own Boot2Docker VM through a newly created Docker Machine.Īnd here comes Kitematic to the rescue - what a great timing. We were fascinated immediately about the simplicity and the seamless GUI, instantly installing Kitematic on a MacBookPro and it was running within 10 minutes only. Really impressed and hooked! Another 15 minutes later, we had cloned the source code repo from GitHub, then a “npm install” and a “npm start” and WOW, we’re running our personal dev version! And we even were able to create our own Mac App with a “npm run release”.
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