Справочник по Angular — 2.2. Архитектор (`architect`)

"production": {
  "budgets": [
    { "type": "initial", "maximumWarning": "500kb", "maximumError": "1mb" }
  ],
  "outputHashing": "all",
  "optimization": true,
  "buildOptimizer": true,
  "fileReplacements": [
    {
      "replace": "src/environments/environment.ts",
      "with": "src/environments/environment.prod.ts"
    }
  ]
}