blog

12020-09-20

SEAN K.H. LIAO

dev loop

manual

Need a local dev env + registry + a cluster

  1. write dockerfile
  2. write k8s manifest
  3. write go code
  4. docker build && docker push
  5. kubectl apply / set
  6. go to 3

ci

Need partial local env + CI system + registry + cluster

  1. write dockerfile
  2. write k8s manifest
  3. write CI config to build + push + deploy
  4. write go code
  5. git commit && git push
  6. go to 3

ko

ko is specialized for go, automagically generate a dockerfile, basically automates the manual loop.

Need a local dev env + registry + a cluster

  1. write k8s manifest (replace image with go import path)
  2. write go code
  3. ko apply
  4. go to 2 (or run with --watch)

skaffold

skaffold is a more general purpose version of ko, for more languages, supporting more flows, such as CI.

Supports rendering final manifests for final deploy

Need: whichever flow you're automating

  1. write dockerfile
  2. write k8s manifest
  3. write go code
  4. skaffold run
  5. go to 3 (or run skaffold dev)