Tolulope Omosefunmi

DevOps Engineer🚀

[Olúwatósìn Olaseinde @tosinolaseinde]

Reframing is very very important. You have to catch yourself mid thought and reframe.

[Akhilesh Mishra @livingdevops]

Kubernetes is beautiful.
Every Concept Has a Story, you just don't know it yet.

In k8s, you run your app as a pod. It runs your container. Then it crashes, and nobody restarts it. It is just gone.

So you use a Deployment. One pod dies and another comes back. You want 3 running, it keeps 3 running.

Every pod gets a new IP when it restarts. Another service needs to talk to your app but the IPs keep changing. You cannot hardcode them at scale.

So you use a Service. One stable IP that always finds your pods using labels, not IPs. Pods die and come back. The Service does not care.

But now you have 10 services and 10 load balancers. Your cloud bill does not care that 6 of them handle almost no traffic.

So you use Ingress. One load balancer, all services behind it, smart routing. But Ingress is just rules and nobody executes them.

So you add an Ingress Controller. Nginx, Traefik, AWS Load Balancer Controller. Now the rules actually work.

Your app needs config so you hardcode it inside the container. Wrong database in staging. Wrong API key in production. You rebuild the image every time config changes.

So you use a ConfigMap. Config lives outside the container and gets injected at runtime. Same image runs in dev, staging and production with different configs.

But your database password is now sitting in a ConfigMap unencrypted. Anyone with basic kubectl access can read it. That is not a mistake. That is a security incident.

So you use a Secret. Sensitive data stored separately with its own access controls. Your image never sees it.

Some days 100 users, some days 10,000. You manually scale to 8 pods during the spike and watch them sit idle all night. You cannot babysit your cluster forever.

So you use HPA. CPU crosses 70 percent and pods are added automatically. Traffic drops and they scale back down. You are not woken up at 2am anymore.

But now your nodes are full and new pods sit in Pending state. HPA did its job. Your cluster had nowhere to put the pods.

So you use Karpenter. Pods stuck in Pending and a new node appears automatically. Load drops and the node is removed. You only pay for what you actually use.

One pod starts consuming 4GB of memory and nobody told Kubernetes it was not supposed to. It starves every other pod on that node and a cascade begins. One rogue pod with no limits takes down everything around it.

So you use Resource Requests and Limits. Requests tell Kubernetes the minimum your pod needs to be scheduled. Limits make sure no pod can steal from everything around it. Your cluster runs predictably.

[Dr Oludayo Sokunbi @Oludeewon]

I miss Nigeria 🇳🇬 original banana.

I'm tired of these chemicals they call Banana in Canada 🇨🇦.

[Timmie_the_dev @timmietech]

git clone = Make I copy this repo come my side.
git pull = Abeg bring the latest gist.
git push = I don update am, take am back.
git commit = Oya, lock this change make e no loss.
git status = Wetin really dey sup here?
git checkout = Shift make I enter another lane.

[Big Timi @OrevaZSN]

Nobody actually loves you like your grandma from your mum’s side, the realest and purest love.

[Firdausee Yahaya @honeeybuch]

Beautiful Qur'an recitation you won't regret listening to.

[‏ً @omgsidewalks]

i'm going to teach my kids that their sibling is actually the most important person in their life. You take care of each other by all means possible 🫶🏾

[Tolulope Omosefunmi @Sefunmih]

Garri, milk and milo 😊😃

[Adekunbi🌹❤️ @Adhekunbi]

One thing you will never stop eating even if you are a billionaire?🎤🎤

[parks @parkersity_9]

seeing kids excited to see you is like the best feeling ever

[Firdaous🇯🇵🫧 @FirdaousIsiaq]

To worship Allah

[N👑 @iistargirl]

Whoever said consideration is the highest form of love cooked. You can’t claim to love your friend, partner and family but not be considerate.

[Tolulope Omosefunmi @Sefunmih]

@usmanomolara3 Happy birthday, my babygirl 🎉🎉😍❤️❤️

[Tolulope Omosefunmi @Sefunmih]

Me with two economics degrees but living the engineer life lol. Life really said plot twist.😂

[Tolulope Omosefunmi @Sefunmih]

@blondehotcoffee Where’s the lie?😂😂😂

[Emerald 💚 هداية @Mz_Tosyn]

I might miss salat time but I’ll never miss salat. No matter how tired I am, I’ll observe my salat even if I have to sit to do it.

[ỌMỌ́TÁRÁ LAWRENCE @theladymotara]

“Everybody my wife is next”
If you like no marry “Banger Boy”😌😂🥰

[Tolulope Omosefunmi @Sefunmih]

@Cupidkill_er Im fed up😂😂

[Dr. Parik Patel, BA, CFA, ACCA Esq. @ParikPatelCFA]

Gonna tell my kids I lived through the great AWS outage of 2025

[Tolulope Omosefunmi @Sefunmih]

🤣🤣🤣🤣🤣

[Uttam @uttam_singhk]

engineers everywhere pretending to “monitor the situation” while refreshing the aws status page

[Tolulope Omosefunmi @Sefunmih]

@Cupidkill_er I can't waitttttttt🤭🤭🤭🤭🤭