Update JSONNET

.drone.jsonnet

@@ -1,3 +1,7 @@
+local distros = ['centos7', 
+                 'debian10', 
+                 'debian11'];
+
 local docker_service() =
  {
    name: 'docker',
@@ -6,6 +10,12 @@ local docker_service() =
    volumes: { name: 'dockersock', path: '/var/run' },
  };
 
+ local pipeline(distribution) = {
+  kind: "pipeline",
+  type: "docker",
+  name: "%(distribution)" % { distribution: distribution }
+};
+
 local email_notification() =
  {
    name: 'notify by email',
@@ -39,8 +49,10 @@ local test_distro(distribution) =
      },
   };
 
-// Run the steps
-{
+local gen_pipeline() = 
+  [{kind: 'pipeline',
+   type: 'docker',
+   name: 'Test on %(distro)s' % { distro: distro },
    steps: [
     [test_distro('centos7'),
      email_notification()],
@@ -51,5 +63,15 @@ local test_distro(distribution) =
    ],
    services: [ 
      docker_service(),
-  ]
+   ],
+   volumes: 
+   {
+     name: 'dockersock',
+     temp: {}, 
+   },
   }
+  for distro in distros];
+
+[
+  gen_pipeline(),
+]