Symfony logs to stdout inside Docker container

Question

I\'m building a docker image for a Symfony application. In this image, I want to stream the Symfony logs to stdout. So, similar to how nginx logs are configured, I added thi

Answer 1

My config to get all php infos / warnings / errors to docker log (I am using php:7.1-apache image):

php.ini

log_errors = On
error_reporting = E_ALL | E_STRICT
error_log = /dev/stderr

Symfony config

# app/config/config_prod.yml
monolog:
handlers:
    main:
        type: group
        members: [logfile, dockerlog]
    logfile:
        type: stream
        path: "%kernel.logs_dir%/%kernel.environment%.log"
        level: debug
        channels: ['!event', '!doctrine']
    dockerlog:
        type: stream
        path:  "php://stderr"
        level: debug
        channels: ['!event', '!doctrine']

troubleshooting:

• check symfony environment (prod/dev/test)
• clear symfony cache maybe
• rebuild container, if you copy php.ini in dockerfile