K8s-demo.md

1. list namespaces

   kubectl get namespace
   

2. switch to demo namespace

   kubectl config set-context devenv --namespace=demo
   

3. list pods

   kubectl get pods
   

4. list deployment configuration files (yaml)

   cd ~/eventbrite/docker-dev/kubernetes/ && ls -l | grep yaml
   

5. deploy containers (bay up equivalent)

   kubectl apply -f .
   

   Note: Each container is being started in a seperate pod. These are being run in certified K8s cloud infra - Amazon EKS

6. list pods and their statuses

   kubectl get pods
   

   Note: These commands are kubectl tool's low-level commands. A lighter tool on top of kubectl will be provided that has similar or better abstraction level than bay.

7. shell into a container (bay shell equivalent)

   kubectl exec -ti core-web-76745bc545-brxtf bash
   

8. tail logs (bay tail ... equivalent)

   kubectl logs -f core-web-76745bc545-brxtf
   

9. setup dashboard for monitoring

   kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/master/src/deploy/recommended/kubernetes-dashboard.yaml
   
   kubectl proxy
   

   Note: To switch to dashboard of a diff namespace, edit namespace value in url http://localhost:8001/api/v1/namespaces/kube-system/services/https:kubernetes-dashboard:/proxy/#!/overview?namespace=demo

10. open dashboard

    • http://localhost:8001/api/v1/namespaces/kube-system/services/https:kubernetes-dashboard:/proxy/

11. forward remote port to your local

    kubectl port-forward deployment/core-web 4443:443
    

12. proxy local traffic from 443 to 4443

    sudo socat tcp-l:443,fork,reuseaddr tcp:127.0.0.1:4443
    

13. Open https://www.evbdev.com in browser

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14. rsync (bay mount equivalent)

    oc rsync -w --exclude=js,django/media/django,.git ~/eventbrite/core core-web-76745bc545-brxtf:/srv/core