I'm using this offical php Docker image: https://github.com/docker-library/php/blob/76a1c5ca161f1ed6aafb2c2d26f83ec17360bc68/7.1/alpine/Dockerfile
Now I need to add support for yaml extension, that is not bundled with php.
I see the base image I'm using uses phpize.
I'm trying with this approach:
# Install and enable yaml extension support to php
RUN apk add --update yaml yaml-dev
RUN pecl channel-update pecl.php.net
RUN pecl install yaml-2.0.0 && docker-php-ext-enable yaml
PHP Api Version: 20160303
Zend Module Api No: 20160303
Zend Extension Api No: 320160303
Cannot find autoconf. Please check your autoconf installation and the
$PHP_AUTOCONF environment variable. Then, rerun this script.
ERROR: `phpize' failed
ERROR: Service 'php_env' failed to build: The command '/bin/sh -c pecl install yaml-2.0.0 && docker-php-ext-enable yaml' returned a non-zero code: 1
Alpine uses apk to install packages. The compiling process is complaining about missing
autoconf, which is found in Alpine's
I'd suggest you to run these commands:
RUN apk add --no-cache --virtual .build-deps \ g++ make autoconf yaml-dev RUN pecl channel-update pecl.php.net RUN pecl install yaml-2.0.0 && docker-php-ext-enable yaml RUN apk del --purge .build-deps
If you need to install other non-dev libraries, you can install them in a separate
apk add command. This procedure will:
install the build deps, using
--no-cache means you're using an updated index and not cached locally (thus no need of
--update or to save the pkg in the cache).
--virtual means you're creating a virtual reference for all those packages that can later be deleted (because they're useless after the compiling process)
do your stuff with pecl and docker-php-ext-enable
delete the previous build deps
If you still encounter any missing dependency, you can see as reference this: https://pkgs.alpinelinux.org/packages