Problem with sending logs to Cloudwatch log groups. How to properly config the monolog to send logs to Cloudwatch log group (using path: 'php://stdout')

[westacton-ronald]

Hi,

I want to inquire about sending logs to the Cloudwatch log group via path: 'php://stdout' using monolog.

My Setup is the following:

• Symfony 5.4
• Running Symfony-based system from AWS ECS (container)
• with AWSlogs driver task def setup in ECS (apache logs is successful with dumping logs to stdout)

my current and running monolog.yaml is setup with the following:

   main:
        type: stream
        path: php://stdout
        level: info
        channels: ["!event"]
        formatter: monolog.formatter.json
        
    requests:
        type: stream
        path: php://stdout
        level: debug
        channels: ["requests"]
        formatter: monolog.formatter.json`

Problem:

• NO Symfony logs are sent to the Cloudwatch log groups.
  Tried also changing the path to php://stderr but still the same no logs are received.

Troubleshoot:

• created a simple PHP script with the following to test if php can do a stdout. Yes, can receive this message from Cloudwatch.
  meaning the PHP config is working fine
  $stdout = fopen("php://stdout", "w");
fwrite($stdout,"Simple PHP Script to STDOUT:\n");

• from Docker container this monolog.yaml config works fine. as it displays the logs to the docker console log without any problem.

• also edit the php.ini with log_errors = On and error_log = /dev/stdout still not working with logging to Cloudwatch

Can someone, help me with this implementation? Thanks in advance