FROM amazonlinux:2

ENV COMPOSER_ALLOW_SUPERUSER=1
ENV PATH=$PATH:vendor/bin

RUN yum update -y \
    && yum upgrade -y \
    && yum install -y  \
      curl \
      git \
      libxml2 \
      libxml2-devel \
      httpd \
      mysql \
      gcc \
      vim \
      make

RUN amazon-linux-extras install php7.2

RUN yum install -y \
      php-devel \
      php-mbstring \
      php-opcache \
      php-soap \
      php-mysqlnd \
      php-pear

RUN yum clean all

RUN pecl install xdebug

RUN mkdir -p /www
RUN ln -s /www/xxxxxxxxxxxxxxxx/xxxxxxxxxxxxxxxx /etc/httpd/conf.d/
RUN ln -s /www/xxxxxxxxxxxxxxxx/config/xdebug.ini /etc/php.d/

EXPOSE 80
CMD ["/usr/sbin/httpd", "-D", "FOREGROUND"]

以上のDockerfileを記述し、buildは成功
docker run後 以下のようなエラーが出ます

/var/log/httpd/error_log

[suexec:notice] [pid 1] AH01232: suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[lbmethod_heartbeat:notice] [pid 1] AH02282: No slotmem from mod_heartmonitor
[http2:warn] [pid 1] AH10034: The mpm module (prefork.c) is not supported by mod_http2. The mpm determines how things are processed in your server. HTTP/2 has more demands in this regard and the currently selected mpm will just not do. This is an advisory warning. Your server will continue to work, but the HTTP/2 protocol will be inactive.
[http2:warn] [pid 1] AH02951: mod_ssl does not seem to be enabled
[mpm_prefork:notice] [pid 1] AH00163: Apache/2.4.33 () configured -- resuming normal operations
[core:notice] [pid 1] AH00094: Command line: '/usr/sbin/httpd -D FOREGROUND'

アクセスログ 

[proxy:error] [pid 7] (2)No such file or directory: AH02454: FCGI: attempt to connect to Unix domain socket /run/php-fpm/www.sock (*) failed
[proxy_fcgi:error] [pid 7] [client 172.17.0.1:34136] AH01079: failed to make connection to backend: httpd-UDS
172.17.0.1 - - [19/Jul/2018:08:59:29 +0000] "GET / HTTP/1.1" 503 299
[proxy:error] [pid 6] (2)No such file or directory: AH02454: FCGI: attempt to connect to Unix domain socket /run/php-fpm/www.sock (*) failed
[proxy_fcgi:error] [pid 6] [client 172.17.0.1:34138] AH01079: failed to make connection to backend: httpd-UDS, referer: http://localhost:8890/

ブラウザ画面（http://localhost:8890/）

Service Unavailable
The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.

エラーが出てhttpdがうまく動作しません