@architect/deploy/src/sam/bucket/create-bucket.js

Deploys @architect projects

let crypto = require('crypto')
let series = require('@architect/utils/run-series')

module.exports = function createDeployBucket ({ appname, aws, region, update }, callback) {
  // Quick validation for S3 bucket naming requirements
  let bucketName = appname
    .replace(/_/g, '-')
    .replace(/\.\./g, '.')
    .replace(/-\./g, '-')
    .replace(/\.-/g, '-')
    .substr(0, 38) // No more than 63 chars

  // Create unique bucket name
  let seed = Buffer.from(`${appname}-${Date.now()}`)
  let createHash = crypto.createHash('sha256')
  createHash.update(seed)
  let hash = createHash.digest('hex').substr(0, 5)
  // Bucket names must be lower case
  let bucket = `${bucketName}-cfn-deployments-${hash}`.toLowerCase()

  series([
    function createBucket (callback) {
      let params = {
        Bucket: bucket,
        ACL: 'private', // Only the bucket owner has access rights
        CreateBucketConfiguration: { LocationConstraint: region },
      }
      // CreateBucketConfiguration.LocationConstraint cannot be 'us-east-1'. Ok!
      // However, CreateBucketConfiguration also cannot be empty
      // Thus, contrary to the spec, CreateBucketConfiguration, a required option, must be omitted if it does not contain other options when creating a bucket in 'us-east-1'
      if (region === 'us-east-1') {
        delete params.CreateBucketConfiguration
      }
      update.status(`Creating new private deployment bucket: ${bucket}`)
      aws.s3.CreateBucket(params)
        .then(() => callback())
        .catch(callback)
    },
    function updateSSM (callback) {
      aws.ssm.PutParameter({
        Name: `/${appname}/deploy/bucket`,
        Value: bucket,
        Type: 'SecureString',
        Overwrite: true,
      })
        .then(() => callback())
        .catch(callback)
    },
  ], function done (err) {
    if (err) {
      update.error('Deployment bucket creation error')
      callback(err)
    }
    else callback(null, bucket)
  })
}