51–60 of 485 posts
-"As for scripting, commit to getting good at Bash." That advice can cause substantial headache on Ubuntu/Debian, where the Almquist shell is /bin/sh. This does not implement much of bash and will fail spectacularly on the simplest of scripts. This is also an issue on systems using Busybox. A useful approach to scripting is to grasp the POSIX shell first, then facets of bash and Korn as they are needed. -"As a practi…
When my SaaS app started scaling, I saw how badly cloud can be priced if you have even slightly unusual use-cases. It occurred to me that instead of spending ~$600/mo on GCP, I can invest in a $3000 PowerEdge server with much better hardware, run it out of my home office, and it pays for itself in less than a year. Running your own server is an investment that doesn't make sense for everyone. If you can get it, it is…
How do you handle traffic spikes, especially from the networking point of view? What kind of connection do you have? How do you make your service as fast for all customers around the world (saying you have a succesful Saas). How do you prevent a local blackout from taking down your service? Where do you store your backups, in case your building gets flooded or your machine blows up? What would you do in case a malicious process takes over the machine? These are some things that are managed in a cloud environment.
I understand investing in a datacenter rack where you own your hardware, if you have the skills, but running it in a home office cannot support a successful business nowadays IMO.
Time is money, and the more time I spend on infrastructure, the less time I spend on product. And thus is born the incredible demand of infrastructure as a service. Thankfully one person's cloud is another person's on prem infrastructure so sysadmin skills will always be in demand. From my perspective in enterprise computing, I now see people taking 2 paths. One where they become super deep sysadmins and work on infr…
At least in my experience, my hobby of maintaining my own home server helped out immensely in my path in the industry due to knowing what tools are available when working on multi-faceted software designs.
-"As for scripting, commit to getting good at Bash." That advice can cause substantial headache on Ubuntu/Debian, where the Almquist shell is /bin/sh. This does not implement much of bash and will fail spectacularly on the simplest of scripts. This is also an issue on systems using Busybox. A useful approach to scripting is to grasp the POSIX shell first, then facets of bash and Korn as they are needed. -"As a practi…
> -"As a practical goal, you should be able to recreate your host with a single Bash script." I disagree with this. A single bash script configuring an entire hosts can be overly complex and very difficult to follow. As someone who has created complex bash scripts, this will become very time consuming and prevent you from making many changes without significant efforts. I'd suggest familiarizing yourself with tools l…
Earlier quoted context omitted.
Do you have a static IP? I have a homelab too but getting “enterprise grade” service from comcast seems to be my biggest barrier to scaling without leaning on aws.
Hey, you actually have a few options, notably, doing nothing! Comcast doesn't actually change your public IP address between DHCP renewals and thus it's effectively static. The only time that it'll change is when the modem is powered off for an amount of time, or the upstream DOCSIS concentrator is powered off for maintenance or otherwise.
When my SaaS app started scaling, I saw how badly cloud can be priced if you have even slightly unusual use-cases. It occurred to me that instead of spending ~$600/mo on GCP, I can invest in a $3000 PowerEdge server with much better hardware, run it out of my home office, and it pays for itself in less than a year. Running your own server is an investment that doesn't make sense for everyone. If you can get it, it is…
And when some component of the server fails, your app is unavailable until you can repair it. So you need another server for redundancy. And a load balancer. And a UPS. And a second internet connection.
If your app is at all critical, you need to replicate all of this at a disaster recovery site. And buy/run/administer DR software.
And hardware has a limited lifespan, so the $3000 was never a one-time investment.
I think there is often still a case to be made for self-hosting but the numbers are not as rosy as they seem at first glance.
Earlier quoted context omitted.
I would assume if you put /bin/bash as your shebang that you're expecting to get bash-isms. I think the problem you're complaining about (which is a real one) is people putting /bin/sh and expecting bashisms. Debuntu being problematic here is more a side effect of bad practice.
Bash has a POSIX mode. Knowing when to switch into and out of this mode, and what impact it has, is a more advanced subject that should not burden those learning the Borne family. It is better to start with Almquist, or another pure POSIX implementation, with documentation specific to standard adherence. More advanced shell features should wait.
Does anyone have a good source of learning that is comprehensive and practical? I’m talking about a good guided book/tutorial on how to administer a server properly and what things one should know how to fix, not just how to set up Wordpress.
This means I can run my own servers and the only thing they do is running rke2.
I can take out a node and upgrade the base is without issues or anything.
And still get all the benefits of a high quality cluster is (k8s)
I love it.
And yes it's easier in my opinion and more streamlined to install a storage software (openebs) on my rke2 cluster and backing up those persistent volume than doing backup for my hard drives.
And my expectation is that while it works already very very good that it only gets even more stable and easier.
Time is money, and the more time I spend on infrastructure, the less time I spend on product. And thus is born the incredible demand of infrastructure as a service. Thankfully one person's cloud is another person's on prem infrastructure so sysadmin skills will always be in demand. From my perspective in enterprise computing, I now see people taking 2 paths. One where they become super deep sysadmins and work on infr…
I find it very similar to how understanding of OS and hardware fundamentals can make one a much better software engineer, how infrastructure in the cloud/servers are setup helps make better design decisions. At least in my experience, my hobby of maintaining my own home server helped out immensely in my path in the industry due to knowing what tools are available when working on multi-faceted software designs.