PHP base images have large size

[ahmad-moussawi]

Hey, thanks for this amazing project!

Why is the PHP image so large (1.3 GB)? Is this normal? I expected PHP images to be smaller, around a few hundred MB.

this is the output of podman images on my machine:

podman images
REPOSITORY                          TAG           IMAGE ID      CREATED       SIZE
localhost/lerd-php85-fpm            local         3bb8eb2d4b36  15 hours ago  1.31 GB
localhost/lerd-dnsmasq              local         f44eb2d8287c  16 hours ago  9.24 MB
docker.io/library/mariadb           10.11         b09758891b16  30 hours ago  337 MB
docker.io/axllent/mailpit           latest        c66fa46e454b  2 days ago    34.5 MB
docker.io/library/nginx             alpine        f787d2269bb5  3 days ago    63.8 MB
docker.io/library/mysql             8.4.9         1487abffa4fa  4 days ago    831 MB
ghcr.io/geodro/lerd-php85-fpm-base  4402d235f676  94abde92260d  5 days ago    1.31 GB
docker.io/library/phpmyadmin        latest        0de7ee7345e2  8 days ago    589 MB
docker.io/library/redis             7.4.9-alpine  487efc061638  9 days ago    39.9 MB
docker.io/library/alpine            latest        3cb067eab609  4 weeks ago   8.74 MB

[geodro]

good catch on the size, you're right it's on the high end. the bulk of it is the build toolchain (autoconf, make, g++, linux headers, and the long list of -dev packages) plus all the runtime extras the image carries by default, ImageMagick, Ghostscript, ffmpeg, node and npm, the new zsh shell stuff, plus around 30 PHP extensions including imagick, redis, mongodb, igbinary, pcov, xdebug. the toolchain alone is roughly 800MB because everything sits in a single RUN layer, so once pecl is done compiling the .so files the headers and compilers don't get dropped.

I just put up PR #364 that splits the Containerfile into a builder and a runtime stage, the toolchain stays in the builder and only the compiled .so files plus the runtime libs land in the final image. on PR #358's base that takes localhost/lerd-php85-fpm from 1.36 GB down to 535 MB, around 60 percent off, with the same set of extensions loading and composer, node, npm, ghostscript, imagemagick, ffmpeg, mysql client and zsh all still there. custom extensions like imap keep working too because their apk runtime deps get reinstalled in the runtime stage.

if you want to try it locally before it lands you can check out the slim/php-image-on-358 branch and run lerd php:rebuild --local, the --local flag bypasses the pre-built base image pull. once #358 and #364 ship the pre-built ghcr base image will get republished at the new size so existing users pick it up on the next 24h refresh.

[ahmad-moussawi]

Nice!, one thing that could be improved as well, is if it's possible to show a progress while downloading the images, I would be happy to contribute in a PR, but it's very far from my knowledge :-D