Mike Coleman
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Docker Compose and Kubernetes with Docker for Desktop
With KubeCon EU happening in Copenhagen, we looked back at the most popular posts with our readers on Docker and Kubernetes. For those of you that have yet to try Docker EE 2.0, this blog highlights how in Docker for Desktops you can use Docker compose to directly deploy an application onto a Kubernetes cluster.
If you’re running an edge version of Docker on your desktop (Docker for Mac or Docker for Windows Desktop), you can now stand up a single-node Kubernetes cluster with the click of a button. While I’m not a developer, I think this is great news for the millions of developers who have already been using Docker on their Macbook or Windows laptop because they now have a fully compliant Kubernetes cluster at their fingertips without installing any other tools.
Developers using Docker to build containerized applications often build Docker Compose files to deploy them. With the integration of Kubernetes into the Docker product line, some developers may want to leverage their existing Compose files but deploy these applications in Kubernetes.
With Docker on the desktop (as well as Docker Enterprise Edition) you can use Docker compose to directly deploy an application Continue reading
Docker Compose and Kubernetes with Docker for Desktop
If you’re running an edge version of Docker on your desktop (Docker for Mac or Docker for Windows Desktop), you can now stand up a single-node Kubernetes cluster with the click of a button. While I’m not a developer, I think this is great news for the millions of developers who have already been using Docker on their Macbook or Windows laptop because they now have a fully compliant Kubernetes cluster at their fingertips without installing any other tools.
Developers using Docker to build containerized applications often build Docker Compose files to deploy them. With the integration of Kubernetes into the Docker product line, some developers may want to leverage their existing Compose files but deploy these applications in Kubernetes. There is, of course, Kompose, but that’s a translation layer which causes you to have two separate artifacts to manage. Is there a way to keep a native Docker-based workflow?
With Docker on the desktop (as well as Docker Enterprise Edition) you can use Docker compose to directly deploy an application onto a Kubernetes cluster.
Here’s how it works:
Let’s assume I have a simple Docker compose file like the one below that describes a three tier Continue reading
Role-based Access Control for Kubernetes with Docker EE
Last week we released the latest beta for Docker Enterprise Edition. Without a doubt one of the most significant features in this release is providing a single management control plane for both Swarm and Kubernetes-based clusters – including clusters made up of both Swarm and Kubernetes workers. This offers customers unparalleled choice in how they manage both their traditional and cloud native applications.
When we were looking at doing this release we knew we couldn’t just slap a GUI on top of Kubernetes and call it good. We wanted to find areas where we could simplify and secure the deployment of applications onto Kubernetes nodes.
One such area is role-based access control (RBAC). Docker EE 17.06 introduced an enhanced RBAC solution that provided flexible and granular access controls across multiple teams and users. While Kubernetes first introduced a basic RBAC solution with the 1.6 release, in this upcoming release, we extend Docker EE’s existing RBAC support to support Kubernetes primitives.
(If you’re not familiar how RBAC works in Docker EE, please read my blog post from August 2017)
In addition to the five predefined authentication roles in Docker EE (view only, full control, none, etc) there are Continue reading
My Three Favorite New Features in Docker Enterprise Edition
I’ve been at Docker for just over two years now, and I’ve worked with every version of Docker Enterprise Edition (née Docker Datacenter) since before there even was a Docker Enterprise Edition (EE). I’m more excited about this new release than any previous release.
There are several new features that are going to ease the management of your applications (both traditional and cloud-native) wherever you need them to run: the cloud or the data center, virtual or physical, Linux or Windows – and now even IBM Z mainframes.
It would take too long to discuss all of the new features, so with that in mind, I’m going to talk about my three favorite features in Docker EE 17.06.
Hybrid-OS Clusters
Docker and Microsoft introduced support for Windows Server containers last fall. This was a major milestone that helped Docker move towards the goal of embracing apps across the entirety of the data center. With this latest release Docker extends hybrid OS operations even further: IT admins can now build and manage clusters comprised of Linux, Windows Server 2016, and IBM Z mainframes – all from the same management plane. This means you can manage applications comprised of both Windows Continue reading
Docker for the SysAdmin Webinar Q&A
On June 27th I presented a webinar on “Docker for the SysAdmin”. The webinar was driven by a common scenario I’m seeing: A sysadmin is sitting at her desk minding her own business when a developer walks in and says “here’s the the new app, it’s in a Docker image. Please deploy it ASAP”. This session is designed to help provides some guidance on how sysadmins should think about managing Dockerized applications in production.
In any case, I was a bit long-winded (as usual), and didn’t have time to answer all the Q&A during the webinar (and there were quite a few).
So, as promised, here are all the questions from that session, along with my answers. If you need more info, hit me up on Twitter: @mikegcoleman
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Q: I am planning an application deployment and want to use Docker. What cloud would you recommend at the moment? I have GCP, Azure, AWS under my belt. 1) TCO 2) Performance ?
A: Answering that would require me to understand your application on a pretty deep level, so I can’t really provide a specific response. I will say that if you choose one cloud provider today, and realize that Continue reading
Learn Docker with our DockerCon 2017 Hands-On Labs
We’re excited to announce that DockerCon 2017 will feature a comprehensive set of hands-on labs. We first introduced hands-on labs at DockerCon EU in 2015, and they were also part of DockerCon 2016 last year in Seattle. This year we’re offering a broader range of topics that cover the interests of both developers and operations personnel on both Windows and Linux (see below for a full list)
These hands-on labs are designed to be self-paced, and are run on the attendee’s laptop. But, don’t worry, all the infrastructure will be hosted again this year on Microsoft Azure. So, all you will need is a laptop capable of instantiating a remote session over SSH (for Linux) or RDP (for Windows).
We’ll have a nice space set up in between the ecosystem expo and breakout rooms for you to work on the labs. There will be tables and stools along with power and wireless Internet access as well as lab proctors to answer questions. But, because of the way the labs are set up, you could also stop by, sign up, and take your laptop to a quiet spot and work on your own.
As you can tell, we’re pretty stoked on Continue reading
Docker at Tech Field Day 12
Docker will be presenting at Tech Field Day 12, and you can sit in on the sessions – at least virtually.
Tech Field Day is an opportunity for IT practitioners to hear from some of the leading technology companies, and Docker is excited to be participating again. Many thanks to Stephen Foskett and Tom Hollingsworth for cultivating a vibrant community of technical leaders and evangelists and inviting us to participate. Looking forward to meeting more of the delegates.
Our session will be Wednesday, November 16th, from 4:30 to 6:30pm Pacific. We have a full slate of topics including:
- Docker Datacenter: What is Docker Datacenter and how can it help organizations implement their own Container as a Service platform.
- Docker for Windows Server: An overview of the integration of Docker containers and Windows Server 2016.
- Docker for AWS and Docker for Azure: Learn about the easiest way to deploy and manage clusters of Docker hosts on both Azure and AWS.
- Docker Security: We’ll discuss how to implement a secure software supply chain with Docker.
- Docker Networking: A conversation on how Docker allows developers to define container centric networks that run on top of your existing infrastructure.
Walk, Jog, Run: Getting Smarter About Docker
I’ve spent most of the summer traveling to and speaking at a lot of different trade shows: EMC World, Cisco Live!, VMworld, HP Discover, Dockercon, and LinuxCon (as well as some meetups and smaller gatherings). A lot of the time, I’m speaking to people who are just getting familiar with Docker. They may have read an article or have had someone walk into their office and say “This Docker thing, so hot right now. Go figure it out”.
Certainly there are a number of companies running Docker in production, but there are still many who are asking fundamental questions about what Docker is, and how it can benefit their organization. To help folks out in that regard, I wrote an eBook.
After someone gets a grasp on what Docker is, they tend to want to dive in and start exploring, but often times they aren’t sure how to get started.
My advice (based on the approach I took when I joined Docker last year) is to walk, jog, and then run:
Walk: Decide where you want to run Docker, and install it. This could be Docker for Mac, Docker for Windows, or just installing Docker on Linux. Continue reading
DockerCon Hands-on Labs
At last year’s DockerCon EU 2015, we offered Hands-on Labs to attendees for the first time and the feedback was really positive! So much so, we are stoked to announce that we’re bringing them back for DockerCon 2016 coming up in Seattle on June 19-21.