If you’re looking for a high level overview of. All 3 of those options have their own pros and cons and in this article we’re going to cover them. Running your own Virtual Machine and installing Docker yourself. The installation tool kit and setup files include: WordPress files MariaDB/MySQL used for WordPress database phpMyAdmin interface to connect to your MySQL database WP-Cli: WordPress Command Line Interface Makefile directives for automatization.Getting Started with Docker Desktop for Mac Step 1: Local Webserver Step 2: Customize and Push to Docker Hub Step 3: Run a Multi-Service App Step 4.Updated May 2019 to be much more comprehensive than the original September 2015 version A little backgroundIf you’re on macOS or Windows you can install Docker with: Docker for Mac / Windows (now known as Docker Desktop) Docker Toolbox. This article shows an example of WordPress Docker setup files for local development on either Windows, MAC or Ubuntu.The Docker, you need to start the Daemon process first I am using a Mac so. NET Core > App choose the Web Application template:If you havent yet tried to install Docker for Windows, try reading my guide. Create a new solution by going to File > New Solution. Creating an ASP.NET Core Web Application and Adding Docker Support. For Docker installation, review and follow the information at Install Docker Desktop for Mac. If youre on a Mac, make sure the Docker engine is running.The motivation for the original version of this article was to flag Docker as a possible solution to:Docker Desktop Visual Studio for Mac 2019 Installation and Setup.Performance Comparison: Docker vs. What problem does Docker solve for CFD? What is Docker? Why is it useful for CFD? What is it good/not-so-good for? And, most importantly, how do you actually use it? That’s what I hope this updated version might achieve. But I think there’s still some confusion about using OpenFOAM with Docker. make it easier to work with several different versions (&/or different releases) of OpenFOAM on the same machineSince then, both OpenCFD & The OpenFOAM Foundation have started distributing Docker-ised versions of their respective releases, easing these issues. providing a consistent CFD environment across a range of operating systems
Docker Setup Mac Step 1How do I add my favourite text editor to the container? Can I keep them or do I have to re-do them every time? I’ve made some changes to my container. How do I get my data into & out of the container? Building your own OpenFOAM Docker image It would be pretty helpful to me if… Meaning you can install OpenFOAM on Windows as easily as you can on Linux (especially if you’re running the Foundation version & using their Ubuntu packs).But if you want to run OpenFOAM on multiple operating systems with a high-degree of confidence that they’re all running the same version of the code and that they’ll all behave consistently, then perhaps Docker could be useful?I typically run OpenFOAM on macOS, and on AWS instances running Ubuntu Linux. A feature that lets you run Linux command-line tools alongside your usual Windows programs. Not impossible, but not ideal, particularly if you were just looking to take OpenFOAM for a quick spin.On Windows that problem has largely gone away with the introduction of the Windows Subsystem for Linux. Back then, running OpenFOAM on Windows, macOS (or even a niche Linux distribution) involved virtual machines, patching &/or compiling from source or using an unofficial port. Change the access to CPU & memory on Mac & WindowsBack in late-2015 running OpenFOAM® on something other than a mainstream Linux distribution was a daunting proposition. They’re standardised so they can be handled & transported wherever they end up in the world. But, if you don’t run on multiple operating systems, don’t need to manage multiple versions/releases or you need to juice every last drop of performance from OpenFOAM, then this may not be the post for you…sorry.Docker is set of tools that make running, building and managing software containers much easier than it otherwise might be.But what is a container in this context? Think of a shipping container. I could deploy the same CFD environment anywhere, without doing any extra work.That’s all possible & it’s thanks to an idea called containerisation & an open-source project called DockerNever heard of either? Read on. the process of updating/upgrading OpenFOAM was consistent & could be done just once behaviour was consistent across the board (scripts that worked locally, also worked in the cloud) And, as the Docker Engine can be installed on almost any infrastructure, your container can be used, without modification, almost anywhere.So, by packaging your CFD environment (OpenFOAM & whatever other tools you may need) into a container you can, thanks to Docker run OpenFOAM pretty much anywhere. That container can then be used on any machine running the Docker Engine. In the same way, a Docker container lets you package up all of the code you need to run a particular set of computing tasks. Lightweight — unlike a virtual machine, containers don’t need to contain an entire operating system in order to function. Except with Docker we get these extra benefits: Why not just use a virtual machine?We could get broadly the same effect using a virtual machine running Linux. Reducing system administration time and increasing confidence that everything will work (just about) everywhere□. ![]() So, no waiting for your virtual machine to boot or leaving it running just in case you want to access it quickly. Quick Start — Docker is architected in such a way that starting a process in a container is almost instantaneous. Try doing that with a virtual machine image. Need to share your exact CFD environment with a client so that they can do some runs themselves? No problem — email them the Dockerfile & away they go. Being plain-text it’s readable, understandable, sharable, archivable, version controllable and easily edited. Foundation Ubuntu package running in Docker = 5m 10s This is the main reason why it probably isn’t the approach for someone looking to juice the last drops of crunch power from their system.As a very simple illustration, I timed the execution of the standard motorbike tutorial in OpenFOAM v6. NativeBut, surely the performance takes a hit when running OpenFOAM in a container, doesn’t it?Docker introduces an additional interface between our code & the underlying system resources on Windows & Mac (less so on Linux) which can reduce performance. Plus, you can update or modify any one of those different versions completely independent of the others.Performance Comparison: Docker vs. By isolating different OpenFOAM versions in their own containers you can have multiple OpenFOAM releases (&/or versions) on one system without needing to worry about incompatible libraries or clashing language versions. Download & Install Docker Community Edition The 5-min VersionThese are the very basic steps to get OpenFOAM running on any machine in 5 mins: Here are some options for getting started. Installing OpenFOAM via DockerInstalling OpenFOAM can be ridiculously easy with Docker - it can also be ridiculously complicated & frustrating if you’re not familiar with it. The takeaway here is not who won, but that the performance gap can be negligible. Can you write in kindle for macDo OpenFOAM-y things in your new container, just to show it workedThe “5 mins” bit depends on your internet connection, but you can get the idea from the more-or-less realtime animation below.Both OpenCFD & The OpenFOAM Foundation use Docker to package releases for Windows, Mac and other Linux versions.Their approaches vary slightly, but you can find their detailed installation & usage instructions here: docker container run -ti cfdengine/openfoam Choose an existing image & start it (it will download the contents the first time you run it) Search the online Docker repository ( Docker Hub) for an OpenFOAM image Hence the official OpenFOAM Docker versions (from The OpenFOAM Foundation & OpenCFD) have “helper” scripts to start the containers. Most of this functionality is down to how the image was built (using this Dockerfile).An OpenFOAM Docker image that was built differently will need to be used differently. That drops us into a new BASH shell, as a user called “foam”, with access to all of the codes within the container (a minimal Ubuntu install with OpenFOAM v6 but no ParaView). So, before we go on to show you how to use OpenFOAM via Docker, you need to understand a little bit more about containers and how their images are built.Terminology primer - you run a container, which is created from an image which was built from a Dockerfile (or it should’ve been □).Here’s our command from our 5-min install:Docker container run -ti cfdengine/openfoamRunning this fetches my simple OpenFOAM image from Docker Hub and starts a container on our local machine. How you use any given container depends heavily on how it was built.
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