Xavier

A year ago I couldn’t tell you what a PVC or ingress was. Today I’m recovering from broken clusters, migrating core services, and — most importantly — actually feeling confident. 🚀

#DevOps #learnk8s #100DaysOfCode #100DaysOfDevOps #homelab #kubernetes

- Stumbled upon mailgun, and am now using their free tier for my SMTP needs. Which aren't much.
- Deployed Komodo to monitor my docker containers.
#DevOps #learnk8s #100DaysOfCode #100DaysOfDevOps #homelab #kubernetes

I was experimenting with Longhorn and accidentally corrupted a few PVCs, including the one for Pi-hole. Since Pi-hole handles DNS inside my cluster, its downtime meant the entire cluster lost DNS. As a result, Infisical couldn’t resolve DNS, and my apps couldn’t access their secrets.

- Moved PiHole and Infisical (Secrets Manager) to external VMs outside of my K8s cluster. Not sure why I didn't do this when I initially built my cluster 🤷🏾‍♂️ . So what happened? #DevOps #learnk8s #100DaysOfCode #100DaysOfDevOps #homelab #kubernetes

- Fully migrated my K8s stack to RKE2. Having my apps "GItOps"ed made the process less painful then what it could've been.

#DevOps #learnk8s #100DaysOfCode #100DaysOfDevOps #homelab #kubernetes

Haven't posted in a while. Just a few update on my learning journey 🧵

#DevOps #learnk8s #100DaysOfCode #100DaysOfDevOps #homelab #kubernetes

Upcoming Project:
Migrate my current k8s stack to RKE2.
#DevOps #k8s #learnk8s #cncf #100DaysOfCode #100DaysOfDevOps #kubernetes

Goodby, Homepage.
Hello, Glance
#DevOps #k8s #learnk8s #cncf #100DaysOfCode #100DaysOfDevOps #kubernetes

In the end, I resolved it by just manually recreating the secret pihole was looking for.
✅

My secrets are managed by External Secrets, which was also failing because it couldn't resolve the dns name for Infisical because.... Pi-hole was down

After bringing my cluster back online, services were recovering except for a few. Pi-hole was complaining about a missing secret.

Just had a power outage that took down my entire homelab. Recovery was… fun, and I got a first hand example of circular dependencies. Mini Thread 🧵
#DevOps #k8s #learnk8s #cncf #100DaysOfCode #100DaysOfDevOps #kubernetes

Oh wow! Thanks for sharing!!

NewReleases.io Don't waste your time checking if some software is updated. Get Email, Webhook or notifications on Slack and other instant messengers.

Why am I just now discovering newreleases.io ?!? 😂
#DevOps #k8s #learnk8s #cncf #100DaysOfCode #100DaysOfDevOps #kubernetes

Weekend Wins:
- Transitioned from Uptime Kuma to Gatus
- Learned more about longhorn....by breaking and fixing my own deployment
- Created an LVM to mount /var/lib/longhorn , and move away from the default "/" mount point on all of my nodes.
#DevOps #k8s #learnk8s #100DaysOfCode #100DaysOfDevOps

Yeah this is the worst!

🤬 Instant Rage

All is well now, though. This is why home labs are crucial. In my case, there's no actual negative consequences of breaking my homelab. This is literally my playground to break and learn #DevOps #k8s #learnk8s #cncf #100DaysOfCode #100DaysOfDevOps #kubernetes

I broke my Longhorn deployment 🥴, which triggered a domino effect that disrupted several other applications in my cluster.

#DevOps #k8s #learnk8s #cncf #100DaysOfCode #100DaysOfDevOps #kubernetes

Migrating from Sealed Secrets to Infisical in my homelab.
#DevOps #k8s #learnk8s #cncf #100DaysOfCode #100DaysOfDevOps #kubernetes

Finally got VictoriaLogs set up in my homelab!— got some proper log monitoring in place at last. Feels good to see everything in one place!

#DevOps #k8s #learnk8s #cncf #100DaysOfCode #100DaysOfDevOps #kubernetes #observability

FINALLY, added some automation to my homelab via Ansible/Semaphore.

#DevOps #k8s #learnk8s #cncf #100DaysOfCode #100DaysOfDevOps #kubernetes #ansible

Imposter Syndrome is no joke 😩

I ended up trying the Logitech k860. Split keyboards are not for me lol

lazygit for the win!

What’s an overlooked topic that many "Getting Into DevOps’" guides miss? In my opinion, it’s networking. Understanding the basics of networking can make a huge difference, when troubleshooting. Thoughts?

#DevOps #k8s #learnk8s #cncf #100DaysOfCode #100DaysOfDevOps #kubernetes

Pulling the trigger, soon 😅
#DevOps #k8s #learnk8s #cncf #100DaysOfCode #100DaysOfDevOps #kubernetes

If you're running ingress-nginx in your Kubernetes cluster please take a look at this latest CVE details, it's a big one! Patches are out so please get updating as soon as you can!

kubernetes.io/blog/2025/03...

#Kubernetes #Nginx #Ingress #CloudNative

[chart] fullNameOverride Invalid type. Expected: null · Issue #5206 · kubernetes-sigs/external-dns What happened: Renovate upgarde the helm chart from 1.15.2 -> 1.16.0. We immeaditly got an error. Error: values don't meet the specifications of the schema(s) in the following chart(s): external-dn...

Fellow external-dns users. You might want to hold off on upgrading to helm v1.16.0.
github.com/kubernetes-s...
#DevOps #k8s #learnk8s #cncf #100DaysOfCode #100DaysOfDevOps #kubernetes

Troubleshooting Rook Ceph 😂

#DevOps #k8s #learnk8s #cncf #100DaysOfCode #100DaysOfDevOps #kubernetes