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Ansible Techniques I Wish I’d Known Earlier
If you’ve ever spent ages waiting for an Ansible playbook to get through a bunch of tasks so yours can be tested, then this article is for you.
Ian Miell
For a few years I was ‘Head of DevOps’. Before I got that job title I’d done much the same work under other names, and since then I’ve watched the same work get called SRE, and then it seemed to morph towards platform engineering. If you’ve been in this industry for any length of time you’ll have seen titles come and…
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2
Things I Wish I'd Known Before Using Vagrant
One of the ironies of working a lot with Docker, Kubernetes, and OpenShift is that I’ve had to learn a lot about Vagrant and Virtualbox. Mostly I use it to spin up OpenShift clusters on my local machine, but I’ve had to poke into lots of corners to get various other things working too.
3
How and why I run my own DNS servers
Despite my woeful knowledge of networking, I run my own DNS servers on my own websites run from home.
4
“Who Should Write the Terraform?”
Working in Cloud Native consulting , I’m often asked about who should do various bits of ‘the platform work ‘.
5
‘AWS vs. K8s’ Is the New ‘Windows vs. Linux’
If, like me, you’re over 40 and work in IT, you’ll probably remember a time when everyone used Windows, and a small but growing proportion of people were wasting their lives compiling Linux in their spare time.
6
Goodbye Docker: Purging Is Such Sweet Sorrow
This was triggered by a recurring incident I faced where the Docker daemon was using 100% CPU on multiple cores that made the host effectively unusable.
7
Unprivileged Docker Builds – A Proof of Concept
I work at a very ‘locked-down’ enterprise, where direct access to Docker is effectively verboten.
8
Things I Learned Managing Site Reliability (2017)
For several years I managed the 3rd line site reliability operation for many of the world’s busiest gambling sites, working for a little-known company that built and ran the core backend online software for several businesses that each at peak could take tens of millions of pounds in revenue per hour. I left a couple…