jimdelois/behance-docker-php-stdout-bug

To reproduce:

git clone git@github.com:jimdelois/behance-docker-php-stdout-bug
cd behance-docker-php-stdout-bug
docker-compose up -d

Enter the Docker Machine Name for your local

DOCKER_MACHINE_NAME=""

Send a request to the container:

curl -XGET http://$(docker-machine ip $DOCKER_MACHINE_NAME):$(docker port badboy 8080 | awk '{split($0,a,":"); print a[2]}')

Examine the Docker logging by examining the raw container logs from the docker host (e.g., docker-machine ssh $DOCKER_MACHINE_NAME, thence tail -F /var/lib/docker/containers/$CONTAINER_ID/$CONTAINER_ID-json.log):

Actual: {"log":"I want a Bad Boy Sandwich\n","stream":"stderr","time":"2020-11-19T06:18:08.672226893Z"}
Expected: {"log":"I want a Bad Boy Sandwich\n","stream":"stdout","time":"2020-11-19T06:18:08.672226893Z"}

Notes:

Raw PHP stream explicitly set to php://stdout; Loggers (e.g., Monolog) in production applications typically use this stream
The unexpected outcome is that containers are sending "normal" PHP output to STDERR, which affects metrics in AWS, FluentD routing, Sumo queries, etc.

jimdelois / behance-docker-php-stdout-bug

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