ext-sockets won't compile in official Docker image 8.3.3-fpm-alpine3.19

[egege]

Description

1. Try creating a Docker image FROM 8.3.3-fpm-alpine3.19
2. Include there a RUN command docker-php-ext-install sockets

Dockerfile:

FROM php:8.3.3-fpm-alpine3.19

RUN docker-php-ext-install sockets

ErrorLog:

91.24 checking whether to build shared libraries... yes
91.24 checking whether to build static libraries... no
91.26 
91.26 creating libtool
91.28 appending configuration tag "CXX" to libtool
91.30 configure: patching config.h.in
91.31 configure: creating ./config.status
91.32 config.status: creating config.h
91.33 /bin/sh /usr/src/php/ext/sockets/libtool --tag=CC --mode=compile cc -I. -I/usr/src/php/ext/sockets -I/usr/src/php/ext/sockets/include -I/usr/src/php/ext/sockets/main -I/usr/src/php/ext/sockets -I/usr/local/include/php -I/usr/local/include/php/main -I/usr/local/include/php/TSRM -I/usr/local/include/php/Zend -I/usr/local/include/php/ext -I/usr/local/include/php/ext/date/lib  -fstack-protector-strong -fpic -fpie -O2 -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DHAVE_CONFIG_H  -fstack-protector-strong -fpic -fpie -O2 -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE   -DZEND_ENABLE_STATIC_TSRMLS_CACHE=1 -DZEND_COMPILE_DL_EXT=1 -c /usr/src/php/ext/sockets/sockets.c -o sockets.lo  -MMD -MF sockets.dep -MT sockets.lo
91.35 mkdir .libs
91.35  cc -I. -I/usr/src/php/ext/sockets -I/usr/src/php/ext/sockets/include -I/usr/src/php/ext/sockets/main -I/usr/src/php/ext/sockets -I/usr/local/include/php -I/usr/local/include/php/main -I/usr/local/include/php/TSRM -I/usr/local/include/php/Zend -I/usr/local/include/php/ext -I/usr/local/include/php/ext/date/lib -fstack-protector-strong -fpic -fpie -O2 -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DHAVE_CONFIG_H -fstack-protector-strong -fpic -fpie -O2 -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE -DZEND_ENABLE_STATIC_TSRMLS_CACHE=1 -DZEND_COMPILE_DL_EXT=1 -c /usr/src/php/ext/sockets/sockets.c -MMD -MF sockets.dep -MT sockets.lo  -fPIC -DPIC -o .libs/sockets.o
91.55 /usr/src/php/ext/sockets/sockets.c:59:12: fatal error: linux/sock_diag.h: No such file or directory
91.55    59 | #  include <linux/sock_diag.h>
91.55       |            ^~~~~~~~~~~~~~~~~~~
91.55 compilation terminated.
91.55 make: *** [Makefile:209: sockets.lo] Error 1

PHP Version

8.3

Operating System

Alpine

[egege]

related links：
#8899
#8681

[devnexen]

Note that php does not manage the docker images. It would be best to report to them to add to the the dependencies the missing linux-headers package.

[tianon]

Apologies for the noise -- answer is in docker-library/php#1500 (comment)