Reboot host if needed or if forced

deploy.sh

@@ -2,7 +2,7 @@
 
 usage () {
     echo "Usage: $0"
-    echo "Usage: $0 boot"
+    echo "Usage: $0 reboot [-f|--force]"
     echo "Usage: $0 services [SINGLE_SERVICE]"
 }
 
@@ -16,8 +16,12 @@ if [ -z "$1" ]; then
     $BASE_CMD
 else
     case $1 in
-        boot)
-            $BASE_CMD --tags boot
+        reboot)
+            if [ "$2" = "-f" ] || [ "$2" = "--force" ]; then
+                $BASE_CMD --tags reboot --extra-vars "force_reboot=true"
+            else
+                $BASE_CMD --tags reboot
+            fi
         ;;
         services)
             if [ -z "$2" ]; then

roles/docker/tasks/main.yml

@@ -40,5 +40,5 @@
 - name: Set up Docker services
   import_tasks: services.yml
   tags:
-    - boot
+    - reboot
     - services

roles/os_config/tasks/main.yml

@@ -12,7 +12,12 @@
 - name: Configure SSH
   import_tasks: ssh.yml
 
+- name: Reboot if needed
+  import_tasks: reboot.yml
+  tags:
+    - reboot
+
 - name: Configure disks
   import_tasks: disks.yml
   tags:
-    - boot
+    - reboot

roles/os_config/tasks/reboot.yml

@@ -0,0 +1,12 @@
+# vim: ft=yaml.ansible
+---
+- name: Check if reboot is needed
+  stat:
+    path: /var/run/reboot-required
+  register: needs_reboot
+
+- name: Reboot host
+  reboot:
+    connect_timeout: 60
+  when: needs_reboot.stat.exists or
+        (force_reboot is defined and force_reboot)