Add testing on Ubuntu LTS (currently bionic)

.github/workflows/bionic/Dockerfile

@@ -0,0 +1,33 @@
+FROM ubuntu:bionic
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+# Install the minimum amount of packages required for testing, which currently means:
+# - minimal set of packages required to run Python 3
+# - shipping versions of uWSGI and nginx (so that config files are put in the right places)
+# Also, make sure we have a sane default locale inside the container
+
+RUN apt-get update \
+ && apt-get dist-upgrade -y \
+ && apt-get install -y --no-install-recommends \
+    apt-utils \
+	ca-certificates \
+	locales \
+	curl \
+	tzdata \
+    git \
+    build-essential \ 
+    git \
+    incron \
+    nginx \
+    python3-pip \
+    python3-click \
+    python3-virtualenv \
+    uwsgi \
+    uwsgi-plugin-asyncio-python3 \
+    uwsgi-plugin-python3 \
+&& locale-gen en_US.UTF-8
+
+VOLUME ["/run"]
+
+CMD ["/usr/bin/python3", "/run/piku.py"]

.github/workflows/os-packages.yml

@@ -8,12 +8,11 @@ jobs:
     strategy:
       max-parallel: 2
       matrix:
-        distro: [buster]
+        distro: [ buster, bionic ]
 
     steps:
     - uses: actions/checkout@v1
     - name: Test on ${{ matrix.distro }}
       run: |
-        pwd
         docker build .github/workflows/${{ matrix.distro }} -t local/${{ matrix.distro }}
-        docker run local/${{ matrix.distro }}
+        docker run -v "$PWD":/run local/${{ matrix.distro }}