Using Kubernetes to deploy Django in GCP
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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.
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Using Kubernetes to deploy Django in GCP
- 1. USING KUBERNETES TO DEPLOY DJANGO IN GCP BY WALTER
- 2. INTRODUCTION ME ▸ FB: Walter Liu ▸ ▸ ▸ / ▸
- 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