从实例配置文件元数据服务器检索凭据时出错。 Laravel S3

Question

Issue

The same code, on almost identical servers, fails locally and on production, however works on our staging server. When we attempt to interact with an item in a bucket, we get an Error retrieving credentials.... - Both servers, staging and production, are deployed by Envoyer and provisioned by Forge to AWS EC2 instances. - Both instances hit the same bucket with the same bucket policy. - .env settings are same for all, minus the server name and debugging

Error on production:

Aws\Exception\CredentialsException
Error retrieving credentials from the instance profile metadata server. (cURL error 28: Connection timed out after 1003 milliseconds (see http://curl.haxx.se/libcurl/c/libcurl-errors.html))

Server settings

Staging

• Ubuntu 16.04.2 LTS on AWS
• PHP 7.1.3-3
• NPM 3.10.10
• Node v6.10.1

Production

• Ubuntu 16.04.1 LTS on AWS EC2
• PHP 7.1.6-1
• npm 3.10.10
• Node v6.10.1

Composer.json packages

"laravel/framework": "5.4.*",       // 5.4.25
"aws/aws-sdk-php-laravel": "~3.0",  // 3.1.0
"guzzlehttp/guzzle": "~6.0",        // 6.2.3

Code sample

function getPhoto($personID)
{
   $contents   = '';
   $id         = $personID;
   $cloudFront = env('AWS_CLOUDFRONT_PHOTO'); // d212rosgvhtylp.cloudfront.net
   $fileKey    = filePath($id) . '_t.jpg'; // 9ae299a1990e79d62f07c28bb60ecf6f_t.jpg
   $fileURL    = $cloudFront . '/' . filePath($id) . '_t.jpg'; // d212rosgvhtylp.cloudfront.net/9ae299a1990e79d62f07c28bb60ecf6f_t.jpg
   // check if in remote storage then get contents
   $contents = Storage::disk('s3photo')->get($fileKey); /* ****** FAILS HERE ****** */
   // stream bioPhoto
   header('Content-Type: image/jpeg');
  echo $contents;
}

Answer 1

After ensuring your .env files contain the correct values for the AWS client, run the following command:

php artisan config:clear

This should clear up your issue if it is caused by initially having incorrect or missing env data, not sure when the cache is updated on it's own but the config cache seems to be pretty persistent.