JSONNET configuration added

.drone.jsonnet

@@ -0,0 +1,55 @@
+local docker_service() =
+ {
+   name: 'docker',
+   image: 'docker:dind',
+   privileged: 'true',
+   volumes: { name: 'dockersock', path: '/var/run' },
+ };
+
+local email_notification() =
+ {
+   name: 'notify by email',
+   image: 'drillster/drone-email',
+   settings:
+    { host: 'mail.guise.net.nz',
+      username:
+        { from_secret: 'EMAIL_USER' },
+      password:
+        { from_secret: 'EMAIL_PASS' },
+      from: 'drone@guise.net.nz'
+    },
+   when:
+     {  status: [ 'changed', 'failure' ] },
+  };
+
+local test_distro(distribution) =
+  {
+    name: 'Test on %(distribution)s' % { distribution: distribution },
+    volumes: { name: 'dockersock', path: '/var/run' },
+    image: 'guisea/ansible-molecule:latest',
+    commands: [
+      'sleep 10', // give docker enough time to start
+      'mkdir ${DRONE_REPO_NAME}',
+      'rsync -a . ${DRONE_REPO_NAME} --exclude ${DRONE_REPO_NAME}',
+      'cd ${DRONE_REPO_NAME}',
+      'molecule test'
+    ],
+    environment:
+     { MOLECULE_DISTRO: '%(distribution)s' % { distribution: distribution }
+     },
+  };
+
+// Run the steps
+{
+  steps: [
+    [test_distro('centos7'),
+     email_notification()],
+    [test_distro('debian10'),
+     email_notification()],
+    [test_distro('debian11'),
+     email_notification()],
+  ],
+  services: [ 
+    docker_service(),
+  ]
+}