Unable to enable php-ast in docker php 7.3.5 - php

Question

I'm trying to install php-ast extension to my project. This is my Dockerfile:
FROM php:7.3.5-apache
RUN apt-get -yqq update \
&& apt-get -yqq install --no-install-recommends libzip-dev git
COPY ./php/php.ini /usr/local/etc/php/
COPY ./php/php_errors.log /var/log/php_errors.log
COPY ./apache/error.log /var/log/apache2/error.log
COPY ./apache/access.log /var/log/apache2/access.log
COPY . /var/www/html
COPY ./apache/vhost.conf /etc/apache2/sites-available/000-default.conf
COPY ./mysql/my.cnf /etc/mysql/conf.d/my.cnf
COPY --from=composer:1.6.5 /usr/bin/composer /usr/bin/composer
RUN apt-get update && apt-get install -y libmcrypt-dev libtool zip unzip \
&& docker-php-ext-install mysqli pdo_mysql \
&& pecl install mcrypt-1.0.2 ast-1.0.1 \
&& docker-php-ext-enable mcrypt ast \
&& a2enmod rewrite
RUN chown -R www-data:www-data /var/www/html
After I run this build and try to use ast, I get message that ast is not enabled. Would someone explain in plain English how should I install this extension on Docker php 7.3.5 or higher?
Update
This is my docker-compose.yml:
version: "3"
services:
appnew:
build: .
depends_on:
- mysqlnew
ports:
- 8080:80
networks:
- app-net
volumes:
- ..:/var/www/html
container_name: appnew
mysqlnew:
image: mysql:5.6
ports:
- 13317:3306
environment:
- MYSQL_DATABASE=XXXX_db
- MYSQL_ROOT_PASSWORD=XXXXXX
volumes:
- mysql57data:/var/lib/mysql
- ./mysql/my.cnf:/etc/mysql/conf.d/my.cnf
# - ./mysql/logs:/var/log/mysql/
networks:
- app-net
container_name: mysqlnew
networks:
app-net:
driver: "bridge"
volumes:
mysql57data:
driver: "local"
And this is my php.ini:
date.timezone = Europe/London
memory_limit = 128M
post_max_size = 500M
upload_max_filesize = 200M
error_log = /var/log/php_errors.log
error_reporting = -1
log_errors = 1

Answer 1

I used this Dockerfile
FROM php:7.3.5-apache
RUN apt-get -yqq update \
&& apt-get -yqq install --no-install-recommends libzip-dev git
RUN apt-get update && apt-get install -y libmcrypt-dev libtool zip unzip \
&& docker-php-ext-install mysqli pdo_mysql \
&& pecl install mcrypt-1.0.2 ast-1.0.1 \
&& docker-php-ext-enable mcrypt ast \
&& a2enmod rewrite
ran the build and wrote php -m and this is the output
[PHP Modules]
ast
Core
ctype
curl
date
dom
fileinfo
and you so many lines after that.