Ensure deployments spread over availability zones

ONSdigital · Jun 24, 2024 · c051a1b · c051a1b
1 parent 5fca996
commit c051a1b
Showing 1 changed file with 22 additions and 0 deletions.
diff --git a/dp-frontend-dataset-controller.nomad b/dp-frontend-dataset-controller.nomad
@@ -14,6 +14,17 @@ job "dp-frontend-dataset-controller" {
   group "web" {
     count = "{{WEB_TASK_COUNT}}"
 
+    spread {
+      attribute = "${node.unique.id}"
+      weight    = 100
+      # with `target` omitted, Nomad will spread allocations evenly across all values of the attribute.
+    }
+    spread {
+      attribute = "${attr.platform.aws.placement.availability-zone}"
+      weight    = 100
+      # with `target` omitted, Nomad will spread allocations evenly across all values of the attribute.
+    }
+
     constraint {
       attribute = "${node.class}"
       value     = "web"
@@ -80,6 +91,17 @@ job "dp-frontend-dataset-controller" {
   group "publishing" {
     count = "{{PUBLISHING_TASK_COUNT}}"
 
+    spread {
+      attribute = "${node.unique.id}"
+      weight    = 100
+      # with `target` omitted, Nomad will spread allocations evenly across all values of the attribute.
+    }
+    spread {
+      attribute = "${attr.platform.aws.placement.availability-zone}"
+      weight    = 100
+      # with `target` omitted, Nomad will spread allocations evenly across all values of the attribute.
+    }
+
     constraint {
       attribute = "${node.class}"
       value     = "publishing"