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IsItTimeToPutYourPetKubernetesDown.md

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title description author marp theme class video_embed
Is It Time To Put Your Pet Kubernetes Down
Explores how Kubernetes is the new pet and the consequences that presents.
Chris Nesbitt-Smith
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<iframe width="560" height="315" src="https://www.youtube-nocookie.com/embed/W-FYK8sgSKo" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>

Is it time to put your pet Kubernetes down?
🐶☸️🔫⁉

🤔

Chris Nesbitt-Smith

UK Gov | esynergy | Control Plane | LearnK8s | lots of open source

👋
Hello

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Chris Nesbitt-Smith

  • Learnk8s & Control Plane Instructor + Consultant
  • esynergy - Digital Transformation Consultant
  • Crown Prosecution Service (UK gov) - Consultant
  • Opensource

Reminder what is Pets vs Cattle?

🐕🐄🤔

The before times ⏳

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🦹‍♀️👏

2023(?) ⌛️

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☸️ Kubernetes ☸️

"duh, we're doing Kubernetes"

🦸‍♀️

☸️ Kubernetes: Nodes (naming)

$ kubectl get nodes
NAME                                         STATUS   ROLES    AGE   VERSION
ip-10-170-7-102.eu-west-2.compute.internal   Ready    <none>   24h   v1.21.5-eks-9017834
ip-10-170-7-99.eu-west-2.compute.internal    Ready    <none>   24h   v1.21.5-eks-9017834

☸️ Kubernetes: Pods (naming)

$ kubectl get pods -A
NAMESPACE           NAME                                                  READY   STATUS    RESTARTS   AGE
cert-manager        cert-manager-6d99c7965c-c9q92                         1/1     Running   0          24h
cert-manager        cert-manager-cainjector-748dc889c5-ljv8c              1/1     Running   0          24h
cert-manager        cert-manager-webhook-5b679f47d6-wnt2f                 1/1     Running   0          24h
kube-system         aws-node-7b7q4                                        1/1     Running   0          24h
kube-system         aws-node-vwr5m                                        1/1     Running   0          24h
kube-system         calico-node-jfndm                                     1/1     Running   0          24h
kube-system         calico-node-zhzsf                                     1/1     Running   0          24h
kube-system         calico-typha-7dd5d4b984-p52gx                         1/1     Running   0          24h
kube-system         calico-typha-horizontal-autoscaler-767b5c958c-w6pjt   1/1     Running   0          24h
kube-system         cluster-autoscaler-6c8dc687c6-pts7q                   1/1     Running   1          24h
kube-system         coredns-65ccb76b7c-8pqj6                              1/1     Running   0          24h
kube-system         coredns-65ccb76b7c-dd48d                              1/1     Running   0          24h
kube-system         kube-proxy-5vqz2                                      1/1     Running   0          24h
kube-system         kube-proxy-zlh5k                                      1/1     Running   0          24h
kube-system         metrics-server-977777f66-mvr56                        1/1     Running   0          24h
nginx-ingress       ingress-controller-5b47bfdf66-c2xj8                   1/1     Running   0          24h
nginx-ingress       ingress-controller-5b47bfdf66-g94xw                   1/1     Running   0          24h
external-dns        external-dns-689dc89999-s6mjz                         1/1     Running   0          24h

☸️ Kubernetes: Pods (checks)

livenessProbe:
  httpGet:
    path: /healthz
    port: http

🐶🐱

Don't look 🆙

eksctl create cluster

...now what?

🧐

🙀🙀🙀🙀

helm install cert-manager jetstack/cert-manager
helm install external-dns external-dns/external-dns
helm install nginx-ingress nginx-stable/nginx-ingress
helm install istiod istio/istiod
etc

So?
🤷

Well

  • ☸️ www.mycompany.com
  • ☸️ dev.notprod.mycompany.com
  • ☸️ int.notprod.mycompany.com
  • ☸️ stg.notprod.mycompany.com
  • ☸️ qa.notprod.mycompany.com

Well

  • ☸️ team[1-10].www.mycompany.com
  • ☸️ team[1-10].dev.notprod.mycompany.com
  • ☸️ team[1-10].int.notprod.mycompany.com
  • ☸️ team[1-10].stg.notprod.mycompany.com
  • ☸️ team[1-10].qa.notprod.mycompany.com

🤖

😱

📆 Day 2

❄️

❄❅❆

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🤯

🐶🐱🐕🐇🐈
🐹🐩🦮🐕‍🦺🐈‍⬛🐰

🤖
🐶🐱🐕🐇🐈
🐹🐩🦮🐕‍🦺🐈‍⬛🐰
🏭

🤕

I❤️
🐶🐱🐕🐇🐈
🐹🐩🦮🐕‍🦺🐈‍⬛🐰

🍸🛒🔫

🍸🛒🔫
☁️

🥱

😮‍💨

🍸🛒🔫
⚙️🥷🔬🪓🔩
☁️

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😜

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👩‍🎓🧑‍🎓📚

💡

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👷‍♀️

🤬

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🔥👩‍🚒📉

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🗑

❤️‍🔥

🍦

I ❤️ 🍦

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KISS

Keep It Stupid Simple

KISS

Keep It Simple, Stupid

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💃

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🐶🔫 ?

👍

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🙏 Thanks 🙏

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  • cns.me
  • talks.cns.me
  • github.com/chrisns
  • learnk8s.io
  • esynergy.co.uk
  • controlplane.io

Chris Nesbitt-Smith

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Q&A🙋‍♀️🙋🙋‍♂️

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cns.me
cns.me


Chris Nesbitt-Smith