Building container images on Kubernetes is a desirable capability. It opens new avenues of continuous integration (CI). We are no longer tied to using something like Jenkins to schedule our CI build jobs. We can use the scheduling proficiency of Kubernetes instead.
Do a search and you'll find very little official comprehensive tutorial-type documentation on how to apply one or more patches to OpenBSD. The information is spread among different manual pages and such.
As described in Security updates FAQ:
While applying fixes from the errata page typically requires less time than a CVS checkout/update and rebuild, there is no universal set of instructions to follow. Sometimes you must patch and recompile one application, sometimes more.
Here's how I patched an OpenBSD 6.3 system running on Cubox i4-pro with 32GB MicroSD card in July of 2018.
Have you ever seen an issue where Terraform recreates AWS EC2 instances on every plan and apply?
Ubiquiti Unifi Security Gateway (USG) is a great device to run at the edge of a home network. It becomes even better when it's running OpenBSD. This guide documents how to setup such a gateway. There are accompanying git repos to somewhat automate the process as well.
Getting newer versions of Python on long term support releases of Linux distributions, such as Ubuntu or CentOS, without interfering with the system Python can be pretty involved. Doing it on multiple instances is even harder. Fortunately, it is possible and quite easy by using snapd.
A Python virtualenv is an isolated directory that serves as the root filesystem (kind of) for an installation of Python. In simpler terms, Python is installed in a non-privileged directory by a regular user. Anything installed for that instance of Python does not affect any other Python instance installed on the system.
This guide will show you how each instance of a Python interpreter differs from others and how to use this to your advantage.
Are you in the same boat as I was only a few weeks ago? That is, does writing a Makefile intimidates you beyond belief? Fear not! Makefiles appear to be insurmountable (and some of the complicated ones really are) but if you start with simple steps, they are really not that difficult.
When one reads the Python Socket Programming HOWTO, non-blocking sockets are mentioned along with select. This is a tale of when select can cause issues if you're not careful.
EdgeRouter Lite is a great device to run at the edge of a home network. It becomes even better when it's running OpenBSD. This guide documents how to setup such a gateway. There are accompanying git repos to somewhat automate the process as well.
pkgsrc is a cross operating system package manager. It supports -- among many others -- NetBSD, Minix, SmartOS, Linux, and macOS. I like it because of this portability. It also has the additional, and I would say the best, benefit of being installed in the home directory and run completely without needing root access. I also like that I don't have to depend on binary packages built by someone else, say Joyent, although there's absolutely nothing wrong with it. Finally, it provides a large number of different packages. I have never encountered a package that I needed but was not available. In short pkgsrc is a portable, featureful, and flexible package manager. What's not to like?
pkgsrc can sometimes be a little behind native package managers, such as MacPorts on macOS, but it catches up quickly. For my use case -- getting access to multiple versions of Python -- it works well enough if I closely follow its trunk branch.
There's generally good and detailed documentation available for pkgsrc but an introductory guide that pulled in some essential starter information was lacking. This guide fills that void by making it easy to get started with pkgsrc and learn about some of its core concepts. Thus, I dubbed it the mini handbook or the missing starter handbook.