Use Centos 7 for building

This will bring the libc requirements back down.

Author: code-asher

ci/image/Dockerfile

@@ -1,10 +1,29 @@
-FROM node:12.14.0
+FROM centos:7
 
-RUN apt-get update && apt-get install -y \
-	libxkbfile-dev \
-	libx11-dev \
-	libsecret-1-dev
+RUN yum update -y \
+  && yum install -y epel-release centos-release-scl \
+  && yum-config-manager --enable rhel-server-rhscl-7-rpms \
+  && yum update -y \
+  && yum install -y \
+    devtoolset-6 \
+    gcc-c++ \
+    xz \
+    ccache \
+    git \
+    wget \
+    openssl \
+    libxkbfile-devel \
+    libsecret-devel \
+    libx11-devel
 
-RUN curl -L https://github.com/mvdan/sh/releases/download/v3.0.1/shfmt_v3.0.1_linux_amd64 > /usr/local/bin/shfmt && chmod +x /usr/local/bin/shfmt
+RUN mkdir /usr/share/node && cd /usr/share/node \
+  && curl https://nodejs.org/dist/v12.14.0/node-v12.14.0-linux-x64.tar.xz | tar xJ --strip-components=1 --
+ENV PATH "$PATH:/usr/share/node/bin"
+RUN npm install -g yarn
+
+RUN curl -L https://github.com/mvdan/sh/releases/download/v3.0.1/shfmt_v3.0.1_linux_amd64 > /usr/local/bin/shfmt \
+  && chmod +x /usr/local/bin/shfmt
+
+RUN echo 'source /opt/rh/devtoolset-6/enable' >> /root/.bashrc
 
 ENTRYPOINT ["/bin/bash", "-c"]