In this post, I’m going to talk about using Ansible to configure policy routing on Linux. If you’re not familiar with Linux policy routing, have a look at this post, and also review this post for one potential use case (I’m sure there are a number of other quite valuable use cases).
As you may recall from the policy routing introductory post, there are three steps involved in configuring policy routing:
/etc/iproute2/rt_tablesAll three of these tasks can be handled via Ansible.
To address step #1, you can use Ansible’s “lineinfile” module to add a reference to the new routing table in /etc/iproute2/rt_tables. For example, consider this Ansible task:
- lineinfile: dest=/etc/iproute2/rt_tables line="200 eth1"
This snippet of Ansible code would add the line “200 eth1” to the end of the etc/iproute2/rt_tables file (if the line does not already exist). This takes care of task #1.
For tasks #2 and #3, you can use a Jinja2 template. Because the creation of the policy routing rule and the routing table entries can Continue reading
The Docker open source project is among the most successful in recent history by every possible metric: number of contributors, GitHub stars, commit frequency, … Managing an open source project at that scale and preserving a healthy community doesn’t come without challenges.
This post is the last of a 3-part series on how we deal with those challenges on the Docker Engine project. Part 1 was all about the people behind the project, and part 2 focused on the processes. In Part 3, we will cover tooling and automation.
There are many areas for automation in a project such as Docker. We wanted to present and share some of our tooling with you: the CI, the utility bots, and the project dashboards.
Orchestration for dockerized applications in production has been a huge reason for why today’s enterprises have begun to leverage Docker Datacenter.
Universal Control Plane, the management layer of the Docker Container-as-a-Service platform delivers production-level orchestration. The tool enables enterprise IT ops teams to manage, deploy and scale their applications across their multi-node clusters. These clusters can be comprised of nodes that exist both in cloud providers like Azure and AWS as well as in the datacenter. Universal Control Plane comes with Docker Swarm embedded into it, giving it the power to create clusters and scale applications across their environment, regardless of infrastructure type, all with support from the Docker team.
There is only one week left until DockerCon 2016 and we can’t contain our excitement for all of the new fun additions we have added to this year’s conference! With all of these amazing activities lined up, DockerCon is going to be one whale of a time. Below is just a teaser of the exciting things to come. Continue reading
Ready for another new addition to DockerCon this year?
The Open Forum track is brand new to this year’s conference agenda! This room is our unique version of hybrid Birds-of-a-Feather sessions and interactive panel discussions. The goal is for a highly interactive conversational room around some guided topics. Be sure to stop in at some point during the conference and let us know what you think!
Docker has evolved tremendously over the last 3 years to empower developers and IT operations teams to maintain greater control over their own environments without sacrificing agility. From an ops tool used by the original dotCloud team, to Docker’s commercially supported Containers-as-a-Service (CaaS) platform, Docker Datacenter (DDC), Docker has been at the forefront of this evolution.
Today we are excited to announce the next evolution in the Docker story providing enterprises with infrastructure optimized for the Docker platform with the leading provider of cloud infrastructure – Hewlett Packard Enterprise (HPE). Together, Docker and HPE will deliver integrated and fully supported Docker ready HPE x86 servers, bundled with Docker’s commercially supported Engine (CS Engine) right out of the box.
DockerCon 2016 is sold out but we are thrilled to announce that the General Sessions on both Day 1 and Day 2 of DockerCon will be livestreamed! Continue reading
It has been a fun two weeks since we launched the #DockerVideo contest. Thank you for all the submissions, likes and retweets but most importantly, thanks for being part of the Docker for Mac and Windows beta. Continue reading
This week HPE will host over 10,000 IT executives, architects, engineers, partners and thought-leaders from around the world at HPE Discover 2016, June 7-9th in Las Vegas.
Come visit Docker in Booth #213 to learn how Docker’s Containers-as-a-Service platform is transforming modern application infrastructures, allowing business to benefit from a more agile development environment.
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.
Welcome to Technology Short Take #67. Here’s hoping something I’ve collected for you here proves useful!
Long-time readers of my site know that my wife, Crystal, launched what is now known as Spousetivities at VMworld 2008. Since that time, she’s been able to organize activities for hundreds of companions at dozens of events around the world. This year she’s adding another event to the roster: DockerCon 2016 in Seattle!
That’s right, Crystal and Spousetivities will be available at DockerCon in Seattle. Here’s a quick look at some of the things she’s got planned:
All in all, it sounds like a great set of activities. Also, I’m very impressed that DockerCon is also offering childcare during the event. Between Spousetivities offering kid-friendly events both days and DockerCon providing childcare, there’s no reason not to bring the family with you to Seattle.
If you’re interested in signing up for any Continue reading
As many of you probably know, I launched a new podcast, called the Full Stack Journey Podcast, back in January. (Here’s the blog post announcing the new podcast.) In this post, I wanted to provide a quick update on the podcast.
First, the podcast now has its own website! Like this site, the Full Stack Journey site is a Jekyll-powered site hosted on GitHub (here’s the site’s repository). I find the Jekyll+GitHub Pages workflow works really well for me, so leveraging the same workflow for the Full Stack Journey site—as opposed to using WordPress or some other CMS—will (hopefully) help make it easier to continue to produce and publish the podcast.
The effort involved in getting the dedicated site up took up a fair amount of time over the last few weeks. This leads me to the second point, which is that I’ve published episode #4 with Brent Salisbury, and will soon (in the next few days) be publishing episode #5 with Patrick Kelso. These episodes are very late (sorry!). June’s episode shouldn’t be as late, and I’m aiming to be back on track with an early July Continue reading