chore: bring back status expression

functions/drop.sql

@@ -3,5 +3,3 @@ DROP VIEW IF EXISTS configs CASCADE;
 DROP VIEW IF EXISTS config_detail CASCADE;
 
 DROP VIEW IF EXISTS config_tags CASCADE;
-
-DROP VIEW IF EXISTS topology CASCADE;

models/components.go

@@ -73,6 +73,10 @@ type Component struct {
 	// ConfigID is the id of the config from which this component is derived
 	ConfigID *uuid.UUID `json:"config_id,omitempty"`
 
+	// StatusExpr allows defining a cel expression to evaluate the status of a component
+	// based on the summary.
+	StatusExpr string `json:"status_expr,omitempty" gorm:"column:status_expr;default:null"`
+
 	// HealthExpr allows defining a cel expression to evaluate the health of a component
 	// based on the summary.
 	HealthExpr string `json:"health_expr,omitempty" gorm:"column:health_expr;default:null"`
@@ -158,6 +162,22 @@ func (c *Component) ObjectMeta() metav1.ObjectMeta {
 	}
 }
 
+func (c Component) GetStatus() (string, error) {
+	if c.StatusExpr != "" {
+		env := map[string]any{
+			"summary": c.Summary.AsEnv(),
+		}
+		out, err := gomplate.RunTemplate(env, gomplate.Template{Expression: c.StatusExpr})
+		if err != nil {
+			return "", fmt.Errorf("failed to evaluate status expression %s: %v", c.StatusExpr, err)
+		}
+
+		return out, nil
+	}
+
+	return string(c.Status), nil
+}
+
 func (c Component) GetHealth() (string, error) {
 	if c.HealthExpr != "" {
 		env := map[string]any{
@@ -184,10 +204,6 @@ func (c Component) GetHealth() (string, error) {
 	}
 }
 
-func (c Component) GetStatus() (string, error) {
-	return string(c.Status), nil
-}
-
 func (c *Component) AsMap(removeFields ...string) map[string]any {
 	return asMap(c, removeFields...)
 }
@@ -258,6 +274,7 @@ func (component Component) Clone() Component {
 		ExternalId:   component.ExternalId,
 		Schedule:     component.Schedule,
 		Health:       component.Health,
+		StatusExpr:   component.StatusExpr,
 		HealthExpr:   component.HealthExpr,
 	}
 

query/topology.go

@@ -11,6 +11,7 @@ import (
 	"github.com/flanksource/commons/collections"
 	"github.com/flanksource/duty/context"
 	"github.com/flanksource/duty/models"
+	"github.com/flanksource/duty/types"
 	"github.com/jackc/pgx/v5"
 	gocache "github.com/patrickmn/go-cache"
 	"github.com/samber/lo"
@@ -32,7 +33,7 @@ func (opt TopologyOptions) selectClause() string {
 	}
 
 	// parents & (incidents, analysis, checks) columns need to fetched to create the topology tree even though they may not be essential to the UI.
-	return "name, namespace, id, is_leaf, status, health_expr, status_reason, icon, summary, topology_type, labels, team_names, type, parent_id, parents, incidents, analysis, checks"
+	return "name, namespace, id, is_leaf, status, status_expr, health_expr, status_reason, icon, summary, topology_type, labels, team_names, type, parent_id, parents, incidents, analysis, checks"
 }
 
 func (opt TopologyOptions) componentWhereClause() string {
@@ -397,6 +398,12 @@ func generateTree(components models.Components, compChildrenMap map[string]model
 			c.Health = lo.ToPtr(models.Health(health))
 		}
 
+		if status, err := c.GetStatus(); err != nil {
+			return nil, err
+		} else {
+			c.Status = types.ComponentStatus(status)
+		}
+
 		nodes = append(nodes, c)
 	}
 

schema/components.hcl

@@ -216,6 +216,10 @@ table "components" {
     null = false
     type = text
   }
+  column "status_expr" {
+    null = true
+    type = text
+  }
   column "health_expr" {
     null = true
     type = text
@@ -366,9 +370,9 @@ table "components" {
   }
   index "components_path_is_pushed_idx" {
     on {
-       expr = "length(path)"
+      expr = "length(path)"
     }
-    where   = "is_pushed IS FALSE"
+    where = "is_pushed IS FALSE"
   }
   index "idx_components_deleted_at" {
     columns = [column.deleted_at]

views/006_config_views.sql

@@ -513,6 +513,7 @@ END;
 $$ LANGUAGE plpgsql;
 
 
+
 CREATE OR REPLACE FUNCTION drop_config_items(ids text[]) RETURNS void as $$
   BEGIN
   ALTER TABLE config_items

views/010_topology.sql

@@ -196,7 +196,8 @@ CREATE OR REPLACE VIEW incident_summary_by_component AS
   SELECT id, jsonb_object_agg(key, value) as incidents FROM (select id, json_object_agg(type,json) incidents from type_summary group by id, type) i, json_each(incidents) group by id;
 
 -- Topology view
-CREATE OR REPLACE VIEW topology AS
+CREATE OR REPLACE VIEW
+  topology AS
 WITH
   children AS (
     SELECT