Dockerfile in yawast-0.7.0.beta3 vs Dockerfile in yawast-0.7.0

@@ -1,8 +1,50 @@
 FROM ruby:2.4-jessie
 
+RUN apt-get update && apt-get install -y \
+	apt-transport-https \
+	ca-certificates \
+	curl \
+	wget \
+	gnupg \
+	unzip \
+    --no-install-recommends \
+	&& curl -sSL https://dl.google.com/linux/linux_signing_key.pub | apt-key add - \
+	&& echo "deb https://dl.google.com/linux/chrome/deb/ stable main" > /etc/apt/sources.list.d/google-chrome.list \
+	&& apt-get update && apt-get install -y google-chrome-stable \
+    fontconfig \
+    fonts-ipafont-gothic \
+    fonts-wqy-zenhei \
+    fonts-thai-tlwg \
+    fonts-kacst \
+    fonts-noto \
+    ttf-freefont \
+    --no-install-recommends \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
+RUN CHROME_STRING=$(/usr/bin/google-chrome-stable --version) \
+  && CHROME_VERSION_STRING=$(echo "${CHROME_STRING}" | grep -oP "\d+\.\d+\.\d+\.\d+") \
+  && CHROME_MAJOR_VERSION=$(echo "${CHROME_VERSION_STRING%%.*}") \
+  && wget --no-verbose -O /tmp/LATEST_RELEASE "https://chromedriver.storage.googleapis.com/LATEST_RELEASE_${CHROME_MAJOR_VERSION}" \
+  && CD_VERSION=$(cat "/tmp/LATEST_RELEASE") \
+  && rm /tmp/LATEST_RELEASE \
+  && CHROME_DRIVER_VERSION="${CD_VERSION}" \
+  && echo "Using chromedriver version: "$CD_VERSION \
+  && echo "Using Chrome version:       "$CHROME_VERSION_STRING \
+  && wget --no-verbose -O /tmp/chromedriver_linux64.zip https://chromedriver.storage.googleapis.com/$CD_VERSION/chromedriver_linux64.zip \
+  && unzip /tmp/chromedriver_linux64.zip -d /usr/bin/ \
+  && rm /tmp/chromedriver_linux64.zip \
+  && chmod +x /usr/bin/chromedriver
+
+RUN groupadd -r chrome && useradd -r -g chrome -G audio,video chrome \
+    && mkdir -p /home/chrome && chown -R chrome:chrome /home/chrome \
+		&& mkdir -p /opt/google/chrome && chown -R chrome:chrome /opt/google/chrome
+
 COPY . /data
 WORKDIR /data
+
+USER chrome
 
 ENV LANG      C.UTF-8
 ENV LANGUAGE  C.UTF-8
 ENV LC_ALL    C.UTF-8