diff --git a/actionfiles/build_and_push_docker_image/Dockerfile b/actionfiles/build_and_push_docker_image/Dockerfile
index c24d5ef..972cf02 100644
--- a/actionfiles/build_and_push_docker_image/Dockerfile
+++ b/actionfiles/build_and_push_docker_image/Dockerfile
@@ -1 +1,46 @@
-FROM
\ No newline at end of file
+FROM mediawiki:lts
+
+# Define the MW_ROOT in MediaWiki as a variable name.
+ENV MW_ROOT /var/www/html
+
+# Make sure that existing software are updated and install development tools.
+# The /etc/apt/preferences.d/no-debian-php is to ensure that we can install php-zip.
+# We need php-zip so that Composer can install packages.
+# TODO remove the /etc/apt/preferences.d/no-debian-php and apt-get -q install -y --no-install-recommends zip unzip php-zip once we upgrade to 1.36 because they are not necessary anymore.
+RUN set -ex && \
+    apt-get -q update && apt-get upgrade -y && \
+    apt-get -q install -y --no-install-recommends nano vim ripgrep tig fd-find && \
+    rm /etc/apt/preferences.d/no-debian-php && \
+    apt-get -q install -y --no-install-recommends zip unzip php-zip && \
+    apt-get -q install -y --no-install-recommends mariadb-client && \
+    rm -rf /var/lib/apt/lists/*  # Remove unnecessary apt cache to keep the layer small
+
+# Define working directory for the following commands
+WORKDIR ${MW_ROOT}
+
+# Copy Tweeki skin to skins/
+COPY ./skins/Tweeki skins/Tweeki
+
+# Copy extensions
+COPY ./extensions extensions
+
+# Copy the php.ini with desired upload_max_filesize into the php directory.
+COPY ./resources/php.ini /usr/local/etc/php/php.ini
+# Copy more assets and composer file.
+COPY ./resources/aqua.png resources/assets/aqua.png
+COPY ./composer.local.json composer.local.json
+
+# TODO hack to address https://github.com/inblockio/DataAccounting/issues/244.
+# Remove this once MediaWiki has made a patch release.
+RUN sed -i 's/$this->package->setProvides( \[ $link \] );/$this->package->setProvides( \[ self::MEDIAWIKI_PACKAGE_NAME => $link \] );/' ./includes/composer/ComposerPackageModifier.php
+
+# Install the latest version of PHP package manager "Composer" and install
+# MW-OAuth2Client from Git master.
+RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin/ --filename=composer && \
+    composer update --no-dev && \
+    cd extensions && \
+    git clone https://github.com/rht/MW-OAuth2Client.git && \
+    cd MW-OAuth2Client && \
+    git submodule update --init && \
+    cd vendors/oauth2-client && \
+    composer install