When developing API extensions or services that deeply integrate with Kubernetes, you may find yourself juggling kubeconfig contexts or iterating through a slow build-push-deploy cycle. Telepresence allows you to develop services locally as if they were running in your cluster. It does this by proxying pods to your local machine and gives your local services seamless access to service discovery and volumes. With Telepresence, you no longer have to maintain Docker Compose files for local orchestration, and you can take full advantage of Kubernetes features such as Ingress, Secrets/ConfigMaps, RBAC and more. In this demo-led session, we’ll take a look at how Telepresence works, the different ways you can use it and how it makes iteratively developing on Kubernetes a breeze.

1. Telepresence
Seamless development environments on Kubernetes
1
Adnan Abdulhussein
GitHub/Twitter/Slack: @prydonius

2. ❯ Project Lead on 5 Kubernetes projects
❯ Kubernetes Training Provider
❯ Co-develop with Microsoft, IBM, Deis, Heptio
❯ OReilly Kubernetes Cookbook Author
SEALED
SECRETS
KUBECFG
CABIN
KUBEAPPS
2@prydonius

3. @prydonius 3
Kubernetes is a great
production environment

4. @prydonius 4
APPS/SERVICES
Microservices
Frontends
Databases
EXTENSIONS
Custom
Resources
Controllers

5. @prydonius 5
frontend service
database service
comments service products service
Applications
Ingress

6. Developing on Kubernetes...
6
services:
ui:
tty: true
build: ./docker
ports:
- 4200:4200
volumes:
- .:/app
command: "ng serve"
api:
tty: true
image: bitnami/monocular-api:latest
volumes:
- ./config.yaml:/config/monocular.yaml
environment:
- ENVIRONMENT=development
- MONOCULAR_AUTH_SIGNING_KEY=secret
ratesvc:
image: kubeapps/ratesvc:latest
environment:
- JWT_KEY=secret
command:
- /ratesvc
- --mongo-url=mongodb://root@mongodb
- --mongo-database=ratesvc
mongodb:
image: bitnami/mongodb:3
environment:
- MONGODB_ROOT_PASSWORD=password123
auth:
image: kubeapps/oauth2-bitnami:latest
...
volumes:
monocular-data:
...with Docker Compose
ConfigMaps
Secrets
Volumes
Service
Discovery
@prydonius

7. Maintaining 2 sets of manifests
7@prydonius

8. Need a way to re-implement
Ingress
Jobs/CronJobs
init-containers
...
8@prydonius

9. Need to mount in kubeconfig for extensions
9@prydonius

10. @prydonius 10
BUILD
PUSHDEPLOY
Development Cycle

11. 11@prydonius
Build-Push-Deploy cycle

12. 12@prydonius
TELEPRESENCE BY
FAST, LOCAL DEVELOPMENT FOR KUBERNETES AND OPENSHIFT MICROSERVICES
install with homebrew/apt/dnf
telepresence.io

13. 13@prydonius
How it works
Take advantage of debugging tools, live reload, etc.
Minikube, GKE, *KS

14. 14@prydonius
You get service discovery, volumes and
the same environment...
...from your local machine.

15. 15@prydonius
Proxying Methods
VPN
• works best for Go binaries, can't use with other VPNs
Inject TCP
• injects a shared library into the process
• doesn't work with statically linked (Go), and suid binaries
Container
• runs a proxy container and starts your container using the proxy network stack

16. 16@prydonius
Demo time

17. Thank
YouFor more
information,
visit bitnami.com
Thank You!
Learn more at telepresence.io
@prydonius on GitHub/Twitter/Slack
Join us at SIG-Apps every Monday @ 9am PT - https://k8s.io/community/