Introduction I’ve noticed several things with Docker registries: The APIs to interrogate them are either cumbersome, unfinished, or usually only partially implemented Free private registries are rarely found on the web, probably because of the cost of storage and data transfer GitLab are one of the few providers that offer free registry access, but today […]

I’ve been keen to move some of my web services from CI to CD recently, and I was keen to see if it could be done using zero-downtime techniques. In other words, I wanted to run a minimum of two instances, to restart each one independently, and then to use a networking system to route […]

As documented in some of my past posts, I’ve been using Docker on CircleCI a lot recently, and I thought it was about time I investigated adding Docker layer caching to the mix. This is one of Docker’s best features, in my view: if a layer does not need building, because the command and the […]

Introduction Over the last six months, I’ve been working on a microservices-oriented application, and it has reached a level of complexity that means I could not do without the tests I have written. My tests are not perfect, and there’s times when I’ve plumped for slow functional tests when fast unit tests would have been […]

Introduction When I first started maintaining “play” servers on the internet, in order to run my own blog and various software projects, the build process was long and laborious. That would have been around 2009, and at that time I was working for corporate logistics provider whose Disaster Recovery time was measured in days, not […]

Introduction I’ve just made use of a Docker multi-stage build when Dockerising my WordPress blog, and I thought it would be useful to examine the benefits. Multi-stage builds are a nice way of being able to do build fragments in order to selectively copy pieces into the output build. Here’s a cut-down example: There are […]

Yes, the title is largely click-bait, but with good reason. I am presently using Code Fresh as my Docker registry, but I’m not really a fan of their service. I have therefore been spending a great deal of search-engine time on finding a replacement for my (unfunded) tech projects, to little avail. Free is of […]