Function isBuildContainer

packages/container/src/util.ts:268–270

()

 * `vercel build`. `VERCEL_BUILD_IMAGE` is set only on Vercel's build image.
 */
export function isBuildContainer(): boolean {
  return Boolean(readString(process.env.VERCEL_BUILD_IMAGE));
}

/**
 * Locate a pre-existing container registry auth file, if any. The build