Python's asyncio enables a
variety of use cases and workflows. In this post we'll explore the ability to
send a SIGHUP signal so one async task (or more) can reload its configuration
and continue. It's similar in concept to the nginx -s reload command where
nginx reloads its configuration without restarting.
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.