如何在docker容器里手动重启php-fpm

php-fpm is a process manager which supports the USER2 signal, which is used to reload the config file.

From inside the container:

kill -USR2 1
Outside:

docker exec -it <mycontainer> kill -USR2 1
Complete example:

docker run -d --name test123 php:7.1-fpm-alpine
docker exec -it test123 ps aux
docker exec -it test123 kill -USR2 1
docker exec -it test123 ps aux

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