rust-k8s-demo

This project is an experiment with how modern web applications would look like when using Rust and Kubernetes. It is a simple web application that returns a new quotation for each request.

There are two isolated microservices. The frontendservice provides one endpoint that clients (browsers) can connect to. The quotationservice is a grpc server, that answers with a quotation for each request. Both the microservices use fully asynchronous Rust libraries and are based on tokio.

Features

• Microservices talking to each other using grpc
• Local dev setup using skaffold
• CI: Build code and run e2e tests for each commit in a k8s cluster
• Using cargo-chef to cache dependencies in Dockerfiles

Getting started

• The repo requires git-lfs.

  $ git clone https://github.com/hueypeard/rust-k8s-demo
  
  # make sure git lfs files have been cloned; otherwise git lfs pull will get the file
  $ ls -lh databaseservice/data
  total 15424
  -rw-r--r--  1 user  staff   7.5M Feb 27 15:55 data.sql

• Setup a local kubernetes cluster using kind.

  $ GO111MODULE="on" go get sigs.k8s.io/kind@v0.11.1
  $ kind create cluster --config kind-config.yaml

• Install skaffold and run the application

  $ make bootstrap
  $ skaffold run --tail

QED - Go to http://localhost. See setup.md for more options for development setup.

Customising this template

• [] Modify the authors key of frontendservice/Cargo.toml
• [] Modify the authors key of quotationservice/Cargo.toml
• [] Modify the copyright of LICENSE

Todo

• Features and boilerplate from https://github.com/EmbarkStudios/opensource-template
• Service mesh
• CD
• Distributed (open) tracing - partially done
• Prometheus, grafana, alert-manager
• Cert Manager
• External DNS(?)

LICENSE

This project is licensed under MIT.

Based on https://github.com/caulagi/rust-k8s-demo