Posts tagged: containers

All posts with the tag "containers"

85 posts latest post 2026-03-23
Publishing rhythm
Mar 2026 | 2 posts

I’m trying to learn proper logs, monitoring, otel, and grafana. Today I imported a bunch of pre-made k8s dashboards and made a few of my own for specific apps, and it made me want to know how I can turn my own custom dashboards into infrastructure as code. Turns out grafana makes it pretty easy to do this, if you have the grafana dashboard sidecar running. It will pick up any ConfigMap with the grafana_dashboard label and import it.

Go to Dashboards -> Pick a Dashboard -> Export -> JSON.

Diun, looks like a very interesting tool to monitor for image updates, it does not make any change, it only makes notifications. This feels like an easy start to getting image updates started with low effort, keep git ops, but requires manual updates. I see this as a tool that would be a great start and pair well with automated image updaters to ensure they are working as expected.

Keel looks interesting, I might give it a try as a simple image updater. I’m unsure if it fits my gitops patterns though. I like to keep everything defined in git, I don’t like drift outside of that so Keel might not be the thing I want.

Changing k8s Storage Class - Migration Job

I’m setting up longhorn in my homelab, and I ran into an issue where I initially setup some pvcs under longhorn, and later realized that to get longhorn to snapshot and backup I needed to hand edit volumes after the fact or change storage class. I’m all in on gitops so option 1 was not an option. So changing storageclass it is.

Now the issue is that you CANNOT mutate storageclass on a provisioned pvc, it is an immutable attribute.

This migration job will create a new pvc with the new storageclass and move the data from the old pvc to the new pvc.

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Kelsey says several times in this interview, you don’t need kubernetes. If you are running one node you don’t need kubernetes. My question though is, would you use kubernetes? Ya I get it if you are a web developer, data scientist, backend dev, but if you are looking to bee a whole ass engineer, or infrastructure engineer, you know kubernetes, Should you use kubernetes on single node?

I recently noticed that my og images were missing emoji. They were taken using headless chrome in a container. I fixed it by adding an emoji font in the containerfile / dockerfile.

RUN apt-get update && apt-get install -y \ # Add fonts with emoji support fonts-noto-color-emoji \ && rm -rf /var/lib/apt/lists/*

Before #

Here’s what they were looking like with broken emoji fonts.

And now with the fixed emoji font.

I put thought bubbles on my thoughts posts and stars on my github stars posts

Today I learned that the docs in postiz are a bit behind, (fantastic docs btw, they are to the point, and cover almost all of what you need). The docs state that you need to include an R2 bucket to handle uploads.

This issue shows that more work has been done, one of which is local storage. The compose file they use in the quick start has the required env variables to set this up.

STORAGE_PROVIDER: "local" UPLOAD_DIRECTORY: "/uploads" NEXT_PUBLIC_UPLOAD_DIRECTORY: "/uploads"

looking into my running instance I can see my images there.

slow nfs performance

I’m running a two node k3s cluster at home, I thought I could simply mount an nfs share on each worker node, and essentially have the same storage accross all nodes. I’m already learning why this is not reccommended.

I’ve been running some cronjobs and argo workflows on the second node for awhile, these are things that run in the background and I don’t care if they take a bit longer to keep my master node freed up for more critical work.

I just started trying to build this site in a cronjob, It was taking 20 minutes to build, and something I noticed was that markata was taking minutes to run glob ( search for files ), normally this happens in a few ms and I never notice this step.

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Depot’s uptime seems to be great. I definitely hit some issues with it this afternoon 12/24/24 that were not reported. I wonder if my issues were with the fly integration. Maybe fly ran out of credits to depot or something.

Just learned about depot today ironically because it seems to be down and fly is using them under the hood to do the container builds, seems like a really great service for fast builds accross your team.

This is a really amazing documentary of argocd. I got into k8s pretty late in the game. Which is pretty typical for me. As I went to use k8s for the first time i was using workflows, then cd. both of these tools had a level of polish that made them seem like they had been there forever and not quite as young as they actually are.

I thought it was interesting how they focused on how the name must be two syllables or less, start with a or b, logo needs to be cutesy funny and recognizable seemed interesting, but puts them at the top of lists and makes them look like they’ve been there forever.