Configured .gitlab-ci.yml, Dockerfile, and RoboFile.php

Dockerfile

@@ -12,7 +12,9 @@ RUN apt-get update && \
     unzip \
     sudo \
     wget \
-    gnupg1
+    gnupg1 \
+    openssh-server \
+    openssh-client
 
 ADD https://packages.sury.org/php/apt.gpg /etc/apt/trusted.gpg.d/php.gpg
 RUN sh -c 'echo "deb https://packages.sury.org/php/ $(lsb_release -sc) main" > /etc/apt/sources.list.d/php.list'
@@ -34,6 +36,10 @@ RUN apt-get update && \
     php7.2-bz2 \
     php7.2-opcache
 
+RUN apt-get install -y \
+    git \
+    libcurl4-gnutls-dev libicu-dev libmcrypt-dev libvpx-dev libjpeg-dev libpng-dev libxpm-dev zlib1g-dev libfreetype6-dev libxml2-dev libexpat1-dev libbz2-dev libgmp3-dev libldap2-dev unixodbc-dev libpq-dev libsqlite3-dev libaspell-dev libsnmp-dev libpcre3-dev libtidy-dev mysql-client
+
 COPY --from=composer:1.5 /usr/bin/composer /usr/bin/composer
 
 RUN php -v && \