Add dashboard UID auto-generation and Gitea CI workflow

environments/modules/grafana_rule_group/locals.tf

@@ -0,0 +1,65 @@
+locals {
+  # Duration parsing map
+  duration_units = {
+    "s" = 1
+    "m" = 60
+    "h" = 3600
+    "d" = 86400
+  }
+
+  # Mapping for datasources
+  datasource_mapping      = { for ds in var.datasources : ds.uid => ds.name }
+  datasource_mapping_type = { for ds in var.datasources : ds.uid => lookup(ds, "type", "prometheus") }
+
+  # Folder time range mapping with 1-minute default
+  folder_time_ranges = {
+    for uid in distinct([for group in var.groups : lookup(var.folder_uids, group.dashboard_alert_group_name, null) if group.dashboard_alert_group_name != null]) :
+    uid => lookup(var.folder_time_ranges, uid, 60) # Default to 60 seconds (1 minute) if not specified
+  }
+
+  # Combine all alerts and their respective configurations
+  combined_alerts = flatten([
+    for group in var.groups : [
+      for datasource_uid in group.alerts_on_datasources_uid :
+      {
+        alert_group_name = group.dashboard_alert_group_name
+        folder_uid       = lookup(var.folder_uids, group.dashboard_alert_group_name, null)
+        datasource_name  = lookup(local.datasource_mapping, datasource_uid, "unknown")
+        datasource_uid   = datasource_uid
+        datasource_type  = lookup(local.datasource_mapping_type, datasource_uid, "prometheus")
+
+        alert_files = [
+          for file_path in fileset(group.alert_definitions_path, "**/*.yaml") :
+          {
+            # Store full YAML content
+            content = yamldecode(file("${group.alert_definitions_path}/${file_path}"))
+
+            # Extract commonly used fields
+            name        = try(yamldecode(file("${group.alert_definitions_path}/${file_path}")).name, null)
+            alert_type  = try(yamldecode(file("${group.alert_definitions_path}/${file_path}")).datasource_type, "prometheus")
+            editor_type = try(yamldecode(file("${group.alert_definitions_path}/${file_path}")).editor_type, null)
+            mode        = try(yamldecode(file("${group.alert_definitions_path}/${file_path}")).mode, "single")
+
+            # File metadata
+            alert_file_path = "${group.alert_definitions_path}/${file_path}"
+            alert_category  = split("/", file_path)[0]
+          }
+          if can(group.alert_definitions_path) &&
+          group.alert_definitions_path != null &&
+          (try(trimspace(group.alert_definitions_path), "") != "")
+        ]
+      }
+    ]
+  ])
+
+  # Group alerts by datasource
+  grouped_alerts_by_datasource = {
+    for alert in local.combined_alerts :
+    "${alert.datasource_name} (${alert.alert_group_name})" => merge(alert, {
+      alert_files = flatten([
+        for a in local.combined_alerts :
+        a.alert_files if a.datasource_name == alert.datasource_name && a.alert_group_name == alert.alert_group_name
+      ])
+    })
+  }
+}