How i can install snmp-module in php on Dokerfile - php

Question

My problem: When i run command
docker build --no-cache -t php --progress=plain .
My container is building, but I get Error in my PHP-project:
Error Call to undefined function snmp2_real_walk()
Command install in Dockerfile is't work... I need help!!
My Dockerfile:
FROM php:7.4-apache
# Use the default production configuration
RUN mv "$PHP_INI_DIR/php.ini-production" "$PHP_INI_DIR/php.ini"
RUN if command -v a2enmod >/dev/null 2>&1; then \
a2enmod rewrite headers \
;fi
RUN apt-get update
# Install tools required for build stage
RUN apt-get install -fyqq \
bash curl wget rsync ca-certificates openssl ssh git tzdata openntpd \
libxrender1 fontconfig libc6 \
mariadb-client gnupg binutils-gold autoconf \
g++ gcc gnupg libgcc1 linux-headers-amd64 make python
#RUN apt install -y libsnmp-dev
# Install composer
RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/bin --filename=composer \
&& chmod 755 /usr/bin/composer
# Install additional PHP libraries
RUN docker-php-ext-install bcmath pdo_mysql
RUN \
apt-get update && \
apt-get install libldap2-dev -y && \
rm -rf /var/lib/apt/lists/* && \
docker-php-ext-configure ldap --with-libdir=lib/x86_64-linux-gnu/ && \
docker-php-ext-install ldap
# Install libraries for compiling GD, then build it
RUN apt-get update && apt-get install -y \
libfreetype6 \
libfreetype6-dev \
libjpeg62-turbo \
libjpeg62-turbo-dev \
libsqlite3-dev \
libssl-dev \
libpng-dev \
libpng16-16 \
libcurl3-dev \
libxml2-dev \
libonig-dev \
libsnmp-dev \
snmp \
&& docker-php-ext-install mysqli xmlrpc \
&& docker-php-ext-configure gd --with-freetype=/usr/include/ --with-jpeg=/usr/include/ \
&& docker-php-ext-install gd \
&& apt-get remove -fyqq libfreetype6-dev libpng-dev libjpeg62-turbo-dev
# -------------------- Installing PHP Extension: snmp --------------------
RUN docker-php-ext-configure snmp --with-snmp \
# Installation
&& docker-php-ext-install -j$(getconf _NPROCESSORS_ONLN) snmp \
&& true
RUN sed -i 's/;extension=snmp/extension=snmp/' php.ini-production
# Add ZIP archives support
RUN apt-get install -fyqq zip libzip-dev \
&& docker-php-ext-install zip \
&& apt-get remove -fyqq libzip-dev
# Install xdebug
RUN pecl install xdebug \
&& docker-php-ext-enable xdebug
# Enable XDebug
ADD xdebug.ini /usr/local/etc/php/conf.d/xdebug.ini
WORKDIR /app
I've tried a lot of options. Editing the
php.ini-production
file did not lead to the expected result. At the same time, the php.ini file also does not exist, but the command is present...