traefik: wait for marathon before starting (smlr)

fixes #1073

roles/common/tasks/main.yml

@@ -35,6 +35,15 @@
   tags:
     - bootstrap
 
+- name: enable yum repos
+  sudo: yes
+  copy:
+    src: "{{ item }}"
+    dest: "/etc/yum.repos.d/{{ item }}"
+  with_items:
+    - asteris-mantl-rpm.repo
+    - ciscocloud-rpm.repo
+
 - name: install system utilities
   sudo: yes
   yum:
@@ -48,6 +57,7 @@
     - unzip
     - jq
     - java-1.8.0-openjdk
+    - smlr
   tags:
     - bootstrap
 
@@ -92,15 +102,6 @@
     - security
     - bootstrap
 
-- name: enable yum repos
-  sudo: yes
-  copy:
-    src: "{{ item }}"
-    dest: "/etc/yum.repos.d/{{ item }}"
-  with_items:
-    - asteris-mantl-rpm.repo
-    - ciscocloud-rpm.repo
-
 - include: users.yml
 - include: ssl.yml
 - include: distributive.yml

roles/traefik/handlers/main.yml

@@ -3,6 +3,10 @@
   sudo: yes
   command: systemctl reload consul
 
+- name: reload systemd
+  sudo: yes
+  command: systemctl daemon-reload
+
 - name: restart traefik
   sudo: yes
-  command: systemctl restart traefik
+  command: systemctl restart traefik

roles/traefik/tasks/main.yml

@@ -8,6 +8,29 @@
     - traefik
     - bootstrap
 
+- name: create directory for local traefik service override
+  sudo: yes
+  file:
+    dest:  /etc/systemd/system/traefik.service.d
+    state: directory
+    mode: 0755
+  tags:
+    - traefik
+    - bootstrap
+
+- name: create local traefik service override
+  sudo: yes
+  copy:
+    dest: /etc/systemd/system/traefik.service.d/marathon.conf
+    content: |
+      [Service]
+      ExecStartPre=-smlr {{ traefik_marathon_endpoint }}/v2/leader
+  notify:
+    - reload systemd
+    - restart traefik
+  tags:
+    - traefik
+
 - name: make certificate directory
   sudo: yes
   file: