add an actual deploy policy

Author: TareqK

infrastructure/deploy/docker-compose.yaml

@@ -24,6 +24,14 @@ services:
     environment: *databuddy-env
     deploy:
       mode: global
+      update_config:
+        parallelism: 1
+        order: stop-first
+        failure_action: rollback
+        delay: 60s
+      rollback_config:
+        parallelism: 1
+        order: stop-first
       placement:
         constraints:
           - node.labels.app==true
@@ -44,6 +52,14 @@ services:
     environment: *databuddy-env
     deploy:
       mode: global
+      update_config:
+        parallelism: 1
+        order: stop-first
+        failure_action: rollback
+        delay: 60s
+      rollback_config:
+        parallelism: 1
+        order: stop-first
       placement:
         constraints:
           - node.labels.app==true
@@ -64,6 +80,14 @@ services:
     environment: *databuddy-env
     deploy:
       mode: global
+      update_config:
+        parallelism: 1
+        order: stop-first
+        failure_action: rollback
+        delay: 60s
+      rollback_config:
+        parallelism: 1
+        order: stop-first
       placement:
         constraints:
           - node.labels.app==true