AWS SDK for PHP: Error retrieving credentials from the instance profile metadata server

Solution 1:

In my case, I was using

return DynamoDbClient::factory(array(
  'version' => 'latest',
  'region'  => AWS_REGION,
  'key' => AWS_KEY,
  'secret'  => AWS_SECRET
));

which used to be ok with aws/aws-sdk-php version 2.8.5 , but when composer automatically installed version 3.2.0, I got the error above. The problem is simply that I should've changed the way I made the call to

return DynamoDbClient::factory(array(
  'version' => 'latest',
  'region'  => AWS_REGION,
  'credentials' => array(
    'key' => AWS_KEY,
    'secret'  => AWS_SECRET,
  )
));

as documented here. Without changing the call, the apache php was falling back to looking for the ~/.aws/credentials file using the HOME environment variable, which was empty. You can check its value by running php -r 'var_dump(getenv("HOME"));'.

This is a related post

Solution 2:

In my case I had to use hard-coded credentials

$s3Client = new S3Client([
    'region' => REGION,
    'version' => '2006-03-01',
    'credentials' => [
        'key'    => S3_KEY,
        'secret' => S3_SECRETE,
    ],
]);

See more details here:

Solution 3:

You have to place the .aws/credentials file with your configuration in the home directory of the web service *usually /var/www) not in the home directory of the logged in user.

You can find what home directory you web service is using by running echo getenv('HOME'); in a php file on your server.

Solution 4:

I was trying to use a credentials file and got the same error, this guy on github pretty much nailed it:

The credentials file should be in ini format but not have a .ini extension. It should have a 'default' section defined with your key and secret:

$ less ~/.aws/credentials

[default]
aws_access_key_id = key
aws_secret_access_key = secret

If you specified other section name instead of default, just add a profile key to the S3Client parameters:

[example]
aws_access_key_id = key
aws_secret_access_key = secret

$s3Client = new \Aws\S3\S3Client([
    'version' => '2006-03-01',
    'region' => $yourPreferredRegion,
    'profile' => 'example',
]);

Using a credentials file or environment variables is the recommended way of providing credentials on your own server

And @Anti 's answer also helped me alot!

If you prefer the hard coded way, just follow @shadi 's answer.

Solution 5:

Here are the steps:

1. Type cd ~ By this you will go into the home directory.
2. mkdir .aws
3. sudo vi .aws/credentials

4. Write following lines and save the file.

   [default]
   aws_access_key_id = Your AWS Access Key
   
   aws_secret_access_key = Your AWS Secret Access Key