Micro-services in Golang

Transcript

1. Micro-services in Golang
2. Who is this guy? • Mark Wolfe <mark@wolfe.id.au> • @wolfeidau on twitter • github.com/wolfeidau • CTO at Ninja Blocks http://www.ninjablocks.com/
3. What are Micro-services? • Martin Fowler Micro Services • Application is a suite of small services • communicate with lightweight mechanisms, often REST • Written in different programming languages • Use different data storage technologies
4. The Art of Unix Programming • Book details 17 Rules these include: • Rule of Composition, build small simple programs • Summarised as Keep it Simple, Stupid (KISS) • Make each program do one thing well.
5. Building a Micro-service • Discovery • Operational Visibility • Logging • Metrics • Health Checks • Deployments/Upgrades
6. My Recipe • Logging, loggo used in Canonical’s Juju • Configuration, envconfig loads configuration from env • Heath checks, currently using stdlib for REST • Metrics, go-metrics port of Coda Hale's Metrics lib
7. Where do we start? • Pull down go-bootstrap project • Always version.go • Start in the main.go • Add a commands.go for dispatch via michellh/cli
8. Commands • Simple composable command line interface • Single binary • agent, where all the work happens • version, status, enable automation and monitoring
9. Code • Lets look under the bonnet of a service that uses this structure.
10. Questions?
11. Links • 12 Factor Applications • The Art of Unix Programming • Serf • Consul