containers
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Docker + Golang = <3
This is a short collection of tips and tricks showing how Docker can be useful when working with Go code. For instance, I’ll show you how to compile Go code with different versions of the Go toolchain, how to cross-compile to a different platform (and test the result!), or how to produce really small container…
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The 10 Most Common Questions IT Admins ask About Docker
Over the past few months we have attended a string of industry tradeshow events, helping to teach the world about Docker for enterprise. We were at HPE Discover, DockerCon, RedHat Summit and Cisco Live all within the past 6weeks! I had the pleasure of helping to represent Docker at each events and spoke with attendees….
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So, when do you use a Container or VM?
Recently I was giving a talk at a trade show on the basics of Docker, and how an application goes from an idea to being a production workload running on a Universal Control Plane managed Swarm cluster. As part of that talk, I spent a bit of time talking about how containers are not VMs….
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To Use Physical Or To Use Virtual: That is the container deployment question
I have had a version of the following conversation more than a few times with community members trying to sort out where to run their containerized apps in production: User: So, where should I run my containers? Bare metal or VM’s Me: It’s not a question of “either / or” – that’s the beauty of…
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Containers and VMs Together
A couple weeks back I talked about how Docker containers were not virtual machines (VMs). I received a lot of positive feedback on the article (thanks!), but I also heard a common question: Can VMs and Docker containers coexist? The answer is a resounding “yes.” At the most basic level VMs are a great place…
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Containers are not VMs
I spend a good portion of my time at Docker talking to community members with varying degrees of familiarity with Docker and I sense a common theme: people’s natural response when first working with Docker is to try and frame it in terms of virtual machines. I can’t count the number of times I have…
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Gathering LXC and Docker containers metrics
Linux Containers rely on control groups which not only track groups of processes, but also expose a lot of metrics about CPU, memory, and block I/O usage. We will see how to access those metrics, and how to obtain network usage metrics as well. This is relevant for “pure” LXC containers, as well as for…
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