Accelerating golang CI builds with GOCACHE and Cloud Storage

cloudbuild.yaml

steps:
- name: gcr.io/cloud-builders/gsutil
  args: ['-m', '-q', 'cp', 'gs://your-caching-bucket/cache.tar.gz', '/workspace']
- name: ubuntu
  entrypoint: '/bin/bash'
  args: ['-c', 'tar -xf cache.tar.gz']
- name: ubuntu
  entrypoint: '/bin/bash'
  args: ['-c', 'mkdir bin']
- name: golang:rc
  entrypoint: 'go'
  args: ['install', '-installsuffix', 'cgo', './...']
  env:
  - 'GOCACHE=/workspace/.cache'
  - 'CGO_ENABLED=0'
  - 'GOOS=linux'
- name: ubuntu
  entrypoint: '/bin/bash'
  args: ['-c', 'tar -cf cache.tar.gz .cache']
- name: gcr.io/cloud-builders/gsutil
  args: ['-m', '-q', 'cp', '/workspace/cache.tar.gz', 'gs://your-caching-bucket']