diff --git a/ci/Dockerfile/ubuntu1804 b/ci/Dockerfile/ubuntu1804
new file mode 100644
index 0000000..a4a9f30
--- /dev/null
+++ b/ci/Dockerfile/ubuntu1804
@@ -0,0 +1,10 @@
+FROM ubuntu:18.04
+# Don't ask. Ubuntu is awful.
+RUN sed -e 's/main$/main universe/' --in-place=orig /etc/apt/sources.list
+RUN DEBIAN_FRONTEND=noninteractive apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -yy cscope ctags \
+  libz-dev libexpat-dev \
+  python language-pack-en texinfo \
+  build-essential g++ git bison flex unzip \
+  cpio vim-common lsb-release \
+  libxml-simple-perl libxml-sax-perl libxml2-dev libxml2-utils xsltproc \
+  wget bc libssl-dev python-matplotlib python-numpy graphviz eatmydata bsdmainutils rsync