Ignore tag values in shared-tag-values

aws_project_costs/project-cost-schema.json

@@ -12,6 +12,14 @@
         "minLength": 1
       }
     },
+    "shared-tag-values": {
+      "description": "Project tag values that should be ignored and considered as shared costs",
+      "type": "array",
+      "items": {
+        "type": "string",
+        "minLength": 1
+      }
+    },
     "project-groups": {
       "description": "Groups of projects which use common infrastructure, a mapping of group-name to list of projects in the group",
       "type": "object",

aws_project_costs/project_costs.py

@@ -41,6 +41,7 @@ def _shared_account(
     start,
     description,
     proj_tag_names_map,
+    shared_tag_values,
     project_tagname,
     projects_in_group,
     costs_dict,
@@ -53,7 +54,9 @@ def _shared_account(
             raise NotImplementedError(f"Project tag {costs_tag} not yet implemented")
 
         project_tag = costs_tag[5:]
-        if project_tagname and project_tag:
+        if project_tagname and project_tag and (project_tag not in shared_tag_values):
+            if project_tag not in proj_tag_names_map:
+                raise ValueError(f"{project_tag} is not in proj-tag-names")
             project_name = proj_tag_names_map[project_tag]
             rows.append(
                 (
@@ -65,6 +68,7 @@ def _shared_account(
                 )
             )
         else:
+            # Either untagged, or a tag that should be considered shared
             cost_per_project = item["COST"] / len(projects_in_group)
             for project_name in projects_in_group:
                 rows.append(
@@ -111,6 +115,7 @@ def allocate_costs(*, accountname, config, start, df):
             start,
             description,
             config["proj-tag-names"],
+            config["shared-tag-values"],
             project_tagname,
             projects_in_group,
             costs_dict,

example/2024-01-01_2024-02-01.csv

@@ -15,6 +15,7 @@ START,END,accountname,Proj$,COST
 2024-01-01,2024-02-01,aws-training,Proj$project-004,66.66
 2024-01-01,2024-02-01,aws-production-1,Proj$project-001,888.22
 2024-01-01,2024-02-01,aws-production-1,Proj$project-002,55.668
+2024-01-01,2024-02-01,aws-production-1,Proj$shared,5
 2024-01-01,2024-02-01,aws-production-2,Proj$,25.5
 2024-01-01,2024-02-01,aws-production-2,Proj$project-003,0.111
 2024-01-01,2024-02-01,aws-production-2,Proj$project-004,545.3009

example/output.csv

@@ -17,8 +17,13 @@ start,projectname,account,tag,cost
 2024-01-01,SPECIAL-OPS,aws-special-ops-dev [project-specific],Proj$project-001,0.02
 2024-01-01,Internal - training,aws-training [project-specific],Proj$project-001,45.2
 2024-01-01,Internal - training,aws-training [project-specific],Proj$project-004,66.66
+2024-01-01,Internal - development,aws-production-1 [shared],Proj$shared,1.0
+2024-01-01,Internal - training,aws-production-1 [shared],Proj$shared,1.0
 2024-01-01,Project A,aws-production-1 [shared],Proj$project-001,888.22
+2024-01-01,Project A,aws-production-1 [shared],Proj$shared,1.0
 2024-01-01,Project B,aws-production-1 [shared],Proj$project-002,55.668
+2024-01-01,Project B,aws-production-1 [shared],Proj$shared,1.0
+2024-01-01,SPECIAL-OPS,aws-production-1 [shared],Proj$shared,1.0
 2024-01-01,Internal - development,aws-production-2 [shared],Proj$,5.1
 2024-01-01,Internal - training,aws-production-2 [shared],Proj$,5.1
 2024-01-01,Project A,aws-production-2 [shared],Proj$,5.1

example/projects.yaml

@@ -4,6 +4,9 @@ proj-tag-names:
   "project-003": "Project B"
   "project-004": "SPECIAL-OPS"
 
+shared-tag-values:
+  - "shared"
+
 project-groups:
   tre:
     - "Project A"