Golang training pre-session: portfolio Sharing our work and projects written in go. Ayoub Bousselmi (github.com/abousselmi) Sofiane Imadali (github.com/sofianinho)

1. Golang Skills
What we know so far…
Sofiane Imadali, Ayoub Bousselmi
21/02/2018

2. Agenda
 When, Why and How ?
 Golang Projects
 Play-with-Docker (open source project)
 VNF API (open source project from scratch)
 Wall and Wall API (open source project, api from scratch)
 Clutch (open source project, from scratch)
 Prometheus Integration (exporters development)
 Next steps…
 Kubernetes and CRD
2/21/2019 Golang Skills 2

3. When, Why and How ?
2/21/2019 Golang Skills 3

4. When, Why and How ?
2/21/2019 Golang Skills 4
When
 2016
 Go version: 1.7
Why
 Docker
 RANaaS project: beego based Swagger API (OpenAPI)
 integrations with MangoDB
 fake data generator like Joke2k/faker in Python:

5. When, Why and How ?
2/21/2019 Golang Skills 5
When
 2017
 Go version: 1.7, 1.8, 1.9
Why
 Docker with Play-with-Docker project
 Wall and Wall API
 VNF API to integrate Dockerized OpenAirInterface
 AccessPoint API to integrate with hostapd and dhcpd

6. When, Why and How ?
2/21/2019 Golang Skills 6
When
 2018
 Go version: 1.8, 1.9, 1.10
Why
 Docker with Play-with-Docker project
 Docker-machine driver for the PlayGround (PWD)
 Clutch: metrics exporter from PCP to Kafka
 All exporters with Prometheus (Web, Postgres),
Alertmanager
 GitTar: git clone from a repo (for CI)

7. Golang Projects
2/21/2019 Golang Skills 7

8. Play-with-Docker
2/21/2019 Golang Skills 8
Goal
 Ephemeral environment to play with docker
 Part of the Plug’in sandbox
Implementation
 Gorilla Mux: API routes and handlers
 Docker SDK (official API from github)
 HTML/CSS/JavaScript/WebSockets
connected to golang backend
Main libraries
 gorilla/mux
 docker/docker/api
 prometheus/promhttp
Links
 https://gitlab.forge.orange-labs.fr/lucy/playground

9. Docker Machine Driver
2/21/2019 Golang Skills 9
Goal
 Use docker-machine to interact with
PlayGround
 Create containers (DINDs) in the PlayGround
Implementation
 Docker-machine SDK
Main libraries
 docker/machine
Links
 https://gitlab.forge.orange-labs.fr/lucy/playground-driver

10. VNF API
2/21/2019 Golang Skills 10
Goal
 Wrap binaries and make them HTTP
attainable
 Inspired by Ligato project
Implementation
 Gin-gonik for swagger API
 Logrus for logging
 Templating for different configurations
Main libraries
 sirupsen/logrus
 gin-gonic/gin
 savaki/swag
Links
 https://www.sdxcentral.com/products/ligato/

11. Wall and Wall API
2/21/2019 Golang Skills 11
Goal
 Make something like Gist (Github) for the
Sandbox users
Implementation
 Jekyll + Nginx
 Golang based API + Templating for posts
Main libraries
 gorilla/mux + gorilla/handlers
 urfave/negroni
Links
 https://gitlab.forge.orange-labs.fr/lucy/wall-api
 https://gitlab.forge.orange-labs.fr/lucy/wall

12. Clutch
2/21/2019 Golang Skills 12
Goal
 Create small probe to extract metrics from
PCP to Kafka
Implementation
 Kafka and PCP integration
 Logrus for logging
 Viper for configuration management
Main libraries
 Shopify/sarama
 sirupsen/logrus
 spf13/viper
Links
 https://gitlab.forge.orange-labs.fr/tqwt7730/clutch

13. Prometheus Integration
2/21/2019 Golang Skills 13
Goal
 Export metrics from PlayGround to
Prometheus
 Create an observable deployment on
OpenWatt
Implementation
 Using official golang Http client
 Rebuild Docker images from source code
Main libraries
 prometheus/promhttp
Links
 https://gitlab.forge.orange-labs.fr/tqwt7730/prom-bbe

14. GitTar
2/21/2019 Golang Skills 14
Goal
 Clone a git project from remote repo
 Use BasicAuth credentials
Implementation
 Swagger REST API
 Combine with AtomDocs (Sandbox) for
documentation CI/CD
Main libraries
 gopkg.in/src-d/go-git.v4
 gin-gonic/gin
 savaki/swag
Links
 https://gitlab.forge.orange-labs.fr/tqwt7730/gittar

15. Beego
2/21/2019 Golang Skills 15
Goal
 Create an API for integration for the Radio
Access Network as a Service (RANaaS) project
Implementation
 Generate basic REST API micro-service
skeleton
Main libraries
 astaxie/beego
Links
 https://beego.me/

16. Next steps…
2/21/2019 Golang Skills 16

17. Kubernetes and CRD
2/21/2019 Golang Skills 17
 Play with Kubernetes
 https://github.com/play-with-docker/play-with-docker/tree/k8s
 Deploy K8S using Vagrant
 https://github.com/sofianinho/vagrant-kube
 CRD: we can collaborate !
 Operator Framework:
https://github.com/operator-framework

18. Thanks
sofiane.imadali@orange.com
ayoub.bousselmi@orange.com