Gopuff
Introduction
Gopuff delivers thousands of everyday items, at your door in 30 minutes. Get everyday value in your pocket. Instantly. Gopuff was a new start up working with all the latest technologies to build out a fully microservices environment. I worked largly with kubernetes that deployed all services, pipleines to deploy them and terraform to create the infrastructure. This was my first full time position at a corporation and was the most intense, and efficient learning curve of my life.
Breakdown
Kubernetes
I was introduced to the entire ecosystem of kubernetes. The best resource to learn more about what is out there is through CNCF Projects. After getting the basics down with CRD's, kubectl and the general flow with helm. I started to pick projects that interested me and implement ones that I thought would help. ArgoCD was my favoriate, but also really enjoyed working with OPA and prometheus. We ended up building a prod parallel environment were I learned about how to spin up services from terraform up to proper service mesh routing.
CI/CD
Gopuff relied heavily on github actions. I learned how to run pipelines, architect repetable patterns and how to deploy services in production. This is where I really learned about the importance of good architecture and how to set up services to catch bugs before prod.
Payments database migration
One of my hardest challenges was migrating our payments database from a shared relational DB to its own microserviced one. The solution required no code changes which made duel writing impossible. I ended up running a pipeline to first to a bulk migration, and then smaller ones to migrate the new rows based on the timestamps of what data had not been migrated. We ended up doing this with only 2 minutes of downtime.