[alpine] imagick-3.5.0 can't be load into PHP without $PHPIZE_DEPS

[marxangels]

PHP Warning:  PHP Startup: Unable to load dynamic library 'imagick' (tried: /usr/local/lib/php/extensions/no-debug-non-zts-20190902/imagick (Error loading shared library /usr/local/lib/php/extensions/no-debug-non-zts-20190902/imagick: No such file or directory), /usr/local/lib/php/extensions/no-debug-non-zts-20190902/imagick.so (Error loading shared library /usr/local/lib/php/extensions/no-debug-non-zts-20190902/imagick.so: No such file or directory)) in Unknown on line 0

It says imagick.so: No such file or directory, but the file is there.
After rollback to my previous version, imagick-3.4.4 , everything is ok.

[marxangels]

apk add $PHPIZE_DEPS && \    
    apk add --virtual .imagick-deps imagemagick imagemagick-dev && \
    pecl install redis && \
    pecl install xdebug && \    
    pecl install imagick-3.4.4 && \
    pecl install igbinary && \    
    docker-php-ext-enable redis && \
    docker-php-ext-enable xdebug && \
    docker-php-ext-enable imagick && \
    docker-php-ext-enable igbinary && \
    # imagick-3.5.0 will not work
    apk del --purge $PHPIZE_DEPS

[wglambert]

Yeah PECL extensions are all compiled so we should add a section about temporarily installing $PHPIZE_DEPS

Current status is I'm running into Imagick/imagick#443 (comment)

Error loading shared library libgomp.so.1

FROM php:alpine
RUN apk add $PHPIZE_DEPS imagemagick-dev && \
mkdir -p /usr/src/php/ext/imagick && \
curl -fsSL https://pecl.php.net/get/imagick | tar xvz -C "/usr/src/php/ext/imagick" --strip 1 && \
docker-php-ext-install imagick && \
apk del $PHPIZE_DEPS

$ docker build . -t php:test
Sending build context to Docker daemon  2.048kB
Step 1/2 : FROM php:alpine
 ---> b224257ffa36
Step 2/2 : RUN apk add $PHPIZE_DEPS imagemagick-dev && mkdir -p /usr/src/php/ext/imagick && curl -fsSL https://pecl.php.net/get/imagick | tar xvz -C "/usr/src/php/ext/imagick" --strip 1 && docker-php-ext-install imagick && apk del $PHPIZE_DEPS
 ---> Using cache
 ---> 342eae452ce4
Successfully built 342eae452ce4
Successfully tagged php:test

$ docker run --rm php:test php -i | grep imagick
Warning: PHP Startup: Unable to load dynamic library 'imagick.so' (tried: /usr/local/lib/php/extensions/no-debug-non-zts-20200930/imagick.so (Error loading shared library libgomp.so.1: No such file or directory (needed by /usr/local/lib/php/extensions/no-debug-non-zts-20200930/imagick.so)), /usr/local/lib/php/extensions/no-debug-non-zts-20200930/imagick.so.so (Error loading shared library /usr/local/lib/php/extensions/no-debug-non-zts-20200930/imagick.so.so: No such file or directory)) in Unknown on line 0
Additional .ini files parsed => /usr/local/etc/php/conf.d/docker-php-ext-imagick.ini

[wglambert]

😉

RUN apk add libgomp

$ cat Dockerfile
FROM php:alpine
RUN apk add $PHPIZE_DEPS imagemagick-dev && \
mkdir -p /usr/src/php/ext/imagick && \
curl -fsSL https://pecl.php.net/get/imagick | tar xvz -C "/usr/src/php/ext/imagick" --strip 1 && \
pecl install imagick && \
docker-php-ext-enable imagick && \
apk del $PHPIZE_DEPS
RUN apk add libgomp

$ docker build . -t php:test
. . .
(1/1) Purging .docker-php-ext-enable-deps (20210628.172520)
OK: 258 MiB in 74 packages
World updated, but the following packages are not removed due to:
  pkgconf: imagemagick-dev

(1/21) Purging autoconf (2.71-r0)
(2/21) Purging m4 (1.4.18-r2)
(3/21) Purging dpkg (1.20.9-r0)
(4/21) Purging dpkg-dev (1.20.9-r0)
(5/21) Purging perl (5.32.1-r0)
(6/21) Purging file (5.40-r1)
(7/21) Purging g++ (10.3.1_git20210424-r2)
(8/21) Purging gcc (10.3.1_git20210424-r2)
(9/21) Purging binutils (2.35.2-r2)
(10/21) Purging libatomic (10.3.1_git20210424-r2)
(11/21) Purging libgomp (10.3.1_git20210424-r2)
(12/21) Purging libgphobos (10.3.1_git20210424-r2)
(13/21) Purging libc-dev (0.7.2-r3)
(14/21) Purging musl-dev (1.2.2-r3)
(15/21) Purging make (4.3-r0)
(16/21) Purging re2c (2.1.1-r0)
(17/21) Purging libmagic (5.40-r1)
(18/21) Purging mpc1 (1.2.1-r0)
(19/21) Purging mpfr4 (4.1.0-r0)
(20/21) Purging isl22 (0.22-r0)
(21/21) Purging gmp (6.2.1-r0)
Executing busybox-1.33.1-r2.trigger
OK: 27 MiB in 53 packages
Removing intermediate container 39268f246749
 ---> ffb50816a112
Step 3/3 : RUN apk add libgomp
 ---> Running in fa9c301bdddc
(1/1) Installing libgomp (10.3.1_git20210424-r2)
OK: 27 MiB in 54 packages
Removing intermediate container fa9c301bdddc
 ---> 3964e546eb50
Successfully built 3964e546eb50
Successfully tagged php:test

$ docker run --rm php:test php -i | grep imagick
Additional .ini files parsed => /usr/local/etc/php/conf.d/docker-php-ext-imagick.ini,
imagick
imagick module => enabled
imagick module version => 3.5.0
imagick classes => Imagick, ImagickDraw, ImagickPixel, ImagickPixelIterator, ImagickKernel
imagick.allow_zero_dimension_images => 0 => 0
imagick.locale_fix => 0 => 0
imagick.progress_monitor => 0 => 0
imagick.set_single_thread => 1 => 1
imagick.shutdown_sleep_count => 10 => 10
imagick.skip_version_check => 0 => 0

[tianon]

See also how WordPress handles this:

https://github.com/docker-library/wordpress/blob/35f4b2751ed7ded4c9462a66346952df4a50e2d0/latest/php7.4/fpm-alpine/Dockerfile#L22-L56

(which is a tad verbose but results in the smallest possible installation and without explicitly listing runtime dependencies -- only build-time)