add prometheus

don't publish traefik api

roles/prometheus/tasks/main.yml

@@ -0,0 +1,19 @@
+- name: Create app directory
+  file:
+    path: "{{ service_dir }}"
+    state: directory
+- name: Copy Docker Compose script
+  template:
+    src: "{{ role_path }}/templates/docker-compose.yml.j2"
+    dest: "{{ service_dir }}/docker-compose.yml"
+- name: Copy prometheus.yml
+  template:
+    src: "{{ role_path }}/templates/prometheus.yml.j2"
+    dest: "{{ service_dir }}/prometheus.yml"
+  register: config
+- name: Start Docker Compose
+  docker_compose:
+    project_src: "{{ service_dir }}"
+    pull: true
+    remove_orphans: true
+    restarted: "{{ config.changed }}"