Walter discusses using Kubernetes on Google Cloud Platform to deploy a Django application. He describes how Kubernetes provides infrastructure as code to automate and scale the application. Key Kubernetes components used include pods, deployments, statefulsets, secrets and configmaps. Services are used for internal and external load balancing, with an ingress controller providing a global load balancer. The document also touches on cluster creation steps, load balancing options, and templating with Python Jinja.

1. USING KUBERNETES TO
DEPLOY DJANGO IN GCP
BY WALTER

2. INTRODUCTION
ME
▸ FB: Walter Liu
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▸
▸ /
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3. Based on a true story
No computer was harmed during
the process.

4. GAME GO PRODUCTION TOMORROW.
LET’S INCREASE SIZE OF THE
CLUSTER
REAL STORY

5. ASIA-EAST1-C IS FULL.
REAL STORY

6. WHAT? MY WHOLE CLUSTER IS
IN ASIA-EAST1-C !!!
REAL STORY

7. K8S + GCP COME TO RESCUE

8. USING KUBERNETES
K8S + GCP
▸ Infrastructure as code
▸ Record cluster creation steps
▸ Automation scripts for daily jobs
▸ Note: Puppet/Chef/Ansible/Saltstack is not needed for
current application
▸ GCP: easy K8S hosting and cluster is free under 5 VMs.

9. USING KUBERNETES
USED K8S COMPONENTS
▸ POD
▸ Deployment
▸ Statefulset
▸ Secrets/ConfigMap
▸ Endpoints
▸ Service
▸ Ingress

10. USING KUBERNETES
POD
▸ one POD could contain multiple containers.
▸ Nginx+uwsgi+django
▸ cloudsql-proxy
▸ twemproxy
▸ telegraf
▸ Share
▸ IP
▸ networking space
▸ shared volumes

11. USING KUBERNETES
DEPLOYMENT
▸ POD template
▸ Desired state instead of changing
property
▸ replicas: number of POD
▸ image: the container image
▸ the version of the application
▸ health check for auto-restart POD

12. USING KUBERNETES
STATEFULSET
▸ Like deployment with static POD name
▸ prod-nimo-kvs-0
▸ prod-nimo-kvs-1
▸ Usage: Sharded service
▸ redis
▸ memcached
▸ Other usage: static volume

13. USING KUBERNETES
SECRETES/CONFIGMAP
▸ Usage: environment variables for Django settings
▸ No git for secretes

14. USING KUBERNETES
ENDPOINTS
▸ Usage: IPs of external resources

15. USING KUBERNETESTEXT
SERVICE
▸ K8S Internal service
▸ External service
▸ TCP Load Balancer
▸ [optional] Firewall
▸ *Global Load Balancer
▸ with Ingress

16. USING KUBERNETES
INGRESS
▸ Global Load Balancer
▸ No firewall ability

17. Ingress
Service
Deployment/POD Statefulset/POD GCP Cloud SQL
Service Service/Endpoints

18. USING KUBERNETES
K8S HAS NO CRONTAB
▸ Use celery
▸ Google App Engine

19. USING KUBERNETES
K8S+GCP LOAD BALANCER
▸ GCP Global Load Balancer
▸ GCP TCP Load Balancer
▸ GCP Internal Load Balancer (1.7 beta support)
▸ K8S Internal Load Balancer

20. USING KUBERNETES
CLUSTER CREATION STEPS
▸ kubectl create -f web_secretes.yaml
▸ kubectl apply -f cache_stateful_set.yaml
▸ ./titan_control deploy prod
▸ Like => kubectl apply -f prod_web_deploy.yaml
▸ kubectl apply -f service.yaml
▸ kubectl apply -f ingress.yaml
▸ gsutil mb -l asia gs://static.example.com

21. NEW CLUSTER CREATED IN
30 MINUTES
REAL STORY

22. OTHERS
TEMPLATING
▸ I use Python Jinjia to do K8S templating.
▸ Someone had suggested me HELM.
▸ Show Templating example.

24. WE ARE HIRING
▸
▸
▸ 8
▸ MIS/
▸ PHP
FB GCPUG + Walter Liu

25. ▸

26. ▸ PHP
▸ Docker
▸ Kubernetes
▸ Google Cloud
▸ git
▸ mix of Scrum/Kanban
▸ Trello/Slack

27. PICAXXXX@GMAIL DOT COM
Walter Liu

28. Q & A