dist-validators: don't run any tasks if no layout is defined

Signed-off-by: Jakub Sokołowski <jakub@status.im>

ansible/roles/distribute-validators/defaults/main.yml

@@ -10,7 +10,7 @@ dist_validators_name: ~
 dist_validators_path: '{{ dist_validators_repo_path }}/{{ dist_validators_name | mandatory }}/validators'
 dist_validators_secrets_path: '{{ dist_validators_repo_path }}/{{ dist_validators_name | mandatory }}/secrets'
 
-dist_validators_layout: {}
+#dist_validators_layout:
 #  'node-01': { start: 0, end: 1023 }
 #  'node-01': { start: 1024, end: 2047 }
 

ansible/roles/distribute-validators/tasks/main.yml

@@ -1,8 +1,14 @@
 ---
 - name: Find new and old validators
   include_tasks: read.yml
+  when: dist_validators_layout is defined
+
 - name: Verify if validators changed
   include_tasks: check.yml
+  when: dist_validators_layout is defined
+
 - name: Copy over validators and secrets
   include_tasks: write.yml
-  when: secrets_changed or validators_changed
+  when: >
+    dist_validators_layout is defined and
+    (secrets_changed or validators_changed)