Tokenizer Gophercon sample service

Gophercon 2021 Workshop

Slides: https://github.com/eran-levy/tokenizer-gophercon/blob/main/Building%20cloud%20native%20service%20in%20Go.pdf

Setup pre-requisite -

• Go 1.15+
• Docker desktop + Kubernetes enabled:
  • Mac- https://docs.docker.com/docker-for-mac/#kubernetes
  • Windows- https://docs.docker.com/docker-for-windows/#kubernetes
  • Linux- https://docs.docker.com/engine/install/ and Minikube installation guide: https://minikube.sigs.k8s.io/docs/start/ (convenience scripts: https://get.docker.com/)
• Skaffold https://skaffold.dev/docs/install/
• Helm https://helm.sh/docs/intro/install/
• kubectl https://kubernetes.io/docs/tasks/tools/install-kubectl/

Make sure you can setup and start (scripts/):

1. MySQL docker container (setup-mysql-server.sh)
2. Redis docker container (setup-redis.sh)
3. Jaeger all-in-one docker container (setup-jaeger-all-in-one.sh)
4. Prometheus local (setup-prometheus.sh)
5. Protoc compiler and go plugins (generate-proto.sh)
6. Execute the sql script to create the database and a table (create-tables.sql)

Useful Web UIs:

• Jaeger UI: http://localhost:16686/search
• Prometheus UI: http://localhost:9090/ Redis CLI:

redis-cli 127.0.0.1:6379> ping PONG 127.0.0.1:6379> select 0 OK 127.0.0.1:6379> keys * (empty array)

Service environment variables override (DSN env var: SERVICE_DB_DSN=root:123456@tcp(127.0.0.1:3306)/tokenizer):

SERVICE_LOG_LEVEL=debug;SERVICE_DB_PASSWD=123456;