I agree, compiled languages prevent large classes of errors, including invoking functions with wrong parameters. However, whether or not you define calling max() with no arguments to be an error or not is unrelated to your language being compiled or interpreted. You could define max() to be -inf in C++ if you wanted, even though the language allows you to prevent invocations of max() with no arguments altogether.
I actually have no sense how common that is. My experience is with very small non-production docker environments, and with Kubernetes, but I have no idea what people typically do in between.
Well, someone needs to run docker compose up, right? (or you set restart policy, but that’s not always possible)
systemd has nothing to do with docker, except to start the docker daemon.
I think what OP was describing was writing systemd unit files that would start/stop docker containers.
one way to achieve this would be to push all sources over to the Raspberry Pi, build the docker image on the Raspberry Pi, give the docker image a ‘latest’ tag and use Systemd with Docker or Podman to execute the image.
I do it almost exactly like this, except instead of systemd I just start containers with --restart unless-stopped.
I’m also looking at improving the current setup, but haven’t really made any progress. I’m thinking of setting up a GitOps type workflow, e.g. as described here: https://medium.com/linux-shots/gitops-on-docker-using-portainer-8712ba7d38c9 (disclaimer: I haven’t tried these instructions myself)
The language not being compiled has nothing to do with error handling. You could have a min function that operates on dynamic arrays (e.g. std::min_element in C++ or min() in Python).
I remember the first time I ran out of inodes: it was very confusing. You just start getting ENOSPC, but du still says you have half the disk space available.
echo 1 > /proc/sys/kernel/sysrq && echo c > /proc/sysrq-trigger
any chance it’s overheating? did you clean the vents and checked the fans?
I don’t think it’s overhyped, at least I’ve never heard anyone hyping it up so much. I would be happy to recommend you other books if you want :)
I also don’t think it’s a big deal if you didn’t like the book. I don’t think even Knuth himself would be upset, really.
Sounds like atop is exactly what you need.
Also, if you remember enjoying hacking, maybe pick that up again? There’s a massive shortage of security engineers at all times.
First of all, you can totally do it! The field is massive, but also full of very bad programmers, and seeing how you were able to write a coherent text of three paragraphs, that already puts you ahead of the curve. Determination and perseverance is key.
I would suggest to play to your strengths. Java is still Java. Most of the progress since the 1990s was in the libraries and tooling, which only recently have become passable. The language itself also evolved somewhat, but there’s nothing that you won’t pick up in a couple of days of working with it.
Start with [1], work through all the boxes that are unfamiliar to you, practice a little on a pet project, or an open source project, and you’ll land a job in no time.
You likely have a mental model of Subversion, so what I would suggest is to try to forget as much of it as possible first, as Git is very different.
Take a tutorial that is aimed at Git beginners, e.g. [1]. This will help you start building a new mental model as well as get first practical experience.
After that, read the official docs starting wtih the object model[2]. The reason why many people struggle to get into git, especially after using other VCS, is that it was built from the ground up, without much regard of the established conventions and terminology. Linus Torvalds once mentioned that he used his experience designing file systems when developing git.
So the object model of git is very simple, but also not intuitive. However, once you understand it, everything will start making sense, including the xkcd you’ve linked.
[1] https://gitimmersion.com/ [2] https://git-scm.com/book/en/v2/Git-Internals-Git-Objects
I didn’t use yaml much while it was gaining popularity, and therefore didn’t pay much attention. But this article really made me pay attention and now I distrust anything that uses yaml in any capacity.
https://ruudvanasseldonk.com/2023/01/11/the-yaml-document-from-hell
I have to download an app to confirm the reservation?
<three sentences not containing the answer to the question>
yes, calling it a heist specifically is extremely colourful in the wrong way
I can’t imagine how normal people use any software at all. When something doesn’t work for me, often I can figure out what could’ve gone wrong. For instance, there might be bug in the JavaScript form handler, and I can just bypass it. Or an app doesn’t invalidate its cache properly, so I just need to flush it manually.
Before you do anything, make sure you have a backup copy of all of your important data!