Dockerfile-grocy: php-fpm.conf sed 'listen' directives are outdated

[jayaddison]

tl;dr - some sed commands in Dockerfile-grocy are no-ops and can be removed.

Detailed Summary

Although the sed ... php-fpm.conf commands in Dockerfile-grocy succeed, they don't appear to be applying edits to /usr/local/etc/php-fpm.conf currently.

The listen directives may have been moved into different files in the image's filesystem (image ref: php:7.2-fpm-alpine).

Steps to check the contents of the base image:

# create and start a root shell in a container
$ buildah run $(buildah from php:7.2-fpm-alpine) sh -c "PS1='% ' sh"

# look for 'listen' directives in the base fpm conf file
% grep "listen\s*=" /usr/local/etc/php-fpm.conf

# perform the same search in the fpm conf include directory
% grep "listen\s*=" /usr/local/etc/php-fpm.d/*.conf
/usr/local/etc/php-fpm.d/www.conf:listen = 127.0.0.1:9000
/usr/local/etc/php-fpm.d/zz-docker.conf:listen = 9000

Cause (pending further investigation)

The php:7.2-fpm-alpine Dockerfile hasn't changed much between 7.2-alpha3 and the latest version.

It seems most likely that change(s) to the underlying Alpine filesystem (3.6 -> 3.11) and/or PHP release (7.2.0-alpha3 -> 7.2.29) may have changed between 3.6 and 3.11?