Add Ubuntu 20.4 support

.github/workflows/continuous-integration.yml

@@ -20,6 +20,9 @@ jobs:
   test:
     needs: validate
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        images: ['jrei/systemd-ubuntu:18.04', 'jrei/systemd-ubuntu:20.04']
     steps:
       - name: Check out repository
         uses: actions/checkout@v2
@@ -28,3 +31,5 @@ jobs:
 
       - name: Molecule test
         uses: robertdebock/molecule-action@2.6.1
+        env:
+          MOLECULE_IMAGE: "${{ matrix.images }}"

meta/main.yml

@@ -4,12 +4,14 @@ galaxy_info:
   author: HIFIS Software Services
   company: Helmholtz Association of German Research Centres
   license: MIT
+  issue_tracker_url: https://github.com/Helmholtz-UFZ/ansible-role-zammad/issues
   min_ansible_version: 2.9
 
   platforms:
     - name: Ubuntu
       versions:
         - bionic
+        - focal
 
   galaxy_tags:
     - zammad

molecule/default/molecule.yml

@@ -7,7 +7,7 @@ driver:
   name: docker
 platforms:
   - name: instance
-    image: jrei/systemd-ubuntu:18.04
+    image: ${MOLECULE_IMAGE:-jrei/systemd-ubuntu:20.04}
     pre_build_image: true
     privileged: true
     override_command: false