Digital Ocean

A few days ago DigitalOcean released their Managed Kubernetes service, as I had a little time this afternoon I decided to give it a spin. Each of the public clouds has a Kubernetes service now, I covered these in the third edition of Mastering Docker external link. The general gist of the chapter was that both the Microsoft Azure and Google Cloud offerings were both excellent. However, the Amazon Web Services offering was an over-complicated mess....

I have been reading about Flocker external link for quite a while and it’s been something I have been meaning to look at since the introduction of plugins back in the Docker 1.7 release external link. But I have been busy external link looking at other parts of Docker. Since I had a few hours this weekend I thought it was about time and had a play. ClusterHQ describes Flocker as; Flocker is an open-source container data volume manager for your Dockerized application....

As I have mentioned a few times on this blog I tend to use DigtialOcean external link to spin up servers for testing and to host some of my projects. I also still use CentOS 7 external link as my preferred OS. Each time I boot a droplet I run few a couple of tasks to get the server how I prefer it. Run a yum update Enable swap external link Install & configure Fail2Ban external link Enable firewalld Install vim-enhanced, deltarpm & enable EPEL external link As I am lazy and sometimes re-launch instances several times when working on a project I decided to write a quick script to do the above so I don’t have to external link....

I noticed yesterday that my DigitalOcean monthly spend was a little more than I was expecting, turns out I have launched the wrong instance size when I last rebuilt my machine, so to save myself a few dollars a month I migrated the instance to a fresh server with a lower spec. By default DigitalOcean servers do not come with swap external link enabled, because of this you run the risk of oomkiller external link killing processes to try and keep the server accessible....

On Friday DigitalOcean announced the availability external link of CoreOS external link on their platform. CoreOS is a very optimized Operating System which is designed to just run containers. While it has some very powerful clustering elements made up of …. etcd external link fleet external link systemmd external link …. I decided my first step should be to do the opposite of every blog post I have read about CoreOS and run a single instance with the tools I am used to using....

As I didn’t get chance to have a play with the pre-release CentOS 7.0 builds I decided to wait until DigitalOcean external link lauched their image external link which they did just in time for the weekend. Check the IP Address First thing I did was type in ifconfig and got ….. [[email protected] ~]# ifconfig -bash: ifconfig: command not found ….. not a good start, have dabbled with a Fedora external link when I installed OpenShift external link I remembered about the ip command …....