Setup .NET template by PhuocHoan · Pull Request #68 · helios-platform-team/helios-platform

PhuocHoan · 2026-04-12T13:53:11Z

Type of change

Bug fix (non-breaking change which fixes an issue)
New feature (non-breaking change which adds functionality)
Breaking change (fix or feature that would cause existing functionality to not work as expected)
Documentation update

Checklist

I have performed a self-review of my own code
I have made corresponding changes to the documentation
I have added evidence that prove my fix is effective or that my feature works
I have added unit tests for new feature
Existing unit tests pass locally with my changes
Prettier and linting checks pass (Backstage)
resolved Create .NET (C#) Web API Backstage Template #56

…ring

coderabbitai · 2026-04-12T13:53:24Z

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Pull request overview

Adds a new Backstage software template to scaffold a .NET Web API service (with GitOps manifests and DB env wiring), and updates local platform tooling/config to support the new template and registry auth changes.

Changes:

Introduce apps/portal/examples/dotnet-template (template definition, source skeleton, and GitOps manifests) and register it in Backstage catalog locations.
Switch Docker registry credentials from DOCKER_PASSWORD to DOCKER_TOKEN across Taskfile + prereq scripts + .env.example.
Update operator database controller tests to expect Postgres image tag 18 and adjust CORS origin config to include 127.0.0.1.

Reviewed changes

Copilot reviewed 24 out of 24 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
Taskfile.yml	Uses `DOCKER_TOKEN` instead of `DOCKER_PASSWORD` when creating docker-registry secret.
scripts/check-prereqs.sh	Requires `DOCKER_TOKEN` in `.env` checks.
scripts/check-prereqs.bat	Requires `DOCKER_TOKEN` and adds optional env-var checking helpers.
apps/portal/examples/nestjs-prisma-template/template.yaml	Updates template description text.
apps/portal/examples/dotnet-template/template.yaml	New Backstage scaffolder template for .NET Web API + GitOps + webhook/secret steps.
apps/portal/examples/dotnet-template/README.md	New documentation for the .NET template contents.
apps/portal/examples/dotnet-template/content/source/README.md	New generated service README for local dev and DB env vars.
apps/portal/examples/dotnet-template/content/source/Properties/launchSettings.json	New launch profile for local development with templated port.
apps/portal/examples/dotnet-template/content/source/Program.cs	New minimal ASP.NET Core app wiring env-based DB connection string + endpoints.
apps/portal/examples/dotnet-template/content/source/DotNetApi.csproj	New .NET Web API project targeting net10.0 with Swagger dependency.
apps/portal/examples/dotnet-template/content/source/Dockerfile	New multi-stage Dockerfile for build/publish and runtime.
apps/portal/examples/dotnet-template/content/source/docker-compose.yml	New compose stack for API + Postgres for local development.
apps/portal/examples/dotnet-template/content/source/Controllers/WeatherForecastController.cs	New sample controller and model.
apps/portal/examples/dotnet-template/content/source/catalog-info.yaml	New Backstage catalog descriptor for generated service.
apps/portal/examples/dotnet-template/content/source/appsettings.json	New appsettings with connection string template placeholders.
apps/portal/examples/dotnet-template/content/source/appsettings.Development.json	New dev logging overrides.
apps/portal/examples/dotnet-template/content/source/.gitignore	New ignore rules for .NET build/IDE artifacts.
apps/portal/examples/dotnet-template/content/source/.env.example	New example env file for DB and port values.
apps/portal/examples/dotnet-template/content/source/.dockerignore	New dockerignore for .NET artifacts and IDE files.
apps/portal/examples/dotnet-template/content/gitops/helios-app.yaml	New HeliosApp manifest template including service + database trait.
apps/portal/app-config.yaml	Adds dotnet template to catalog locations and expands CORS origins list.
apps/operator/internal/controller/database/resources_test.go	Updates expected Postgres image tag in StatefulSet generation test.
apps/operator/internal/controller/database/reconciler_test.go	Updates expected Postgres image tag in reconciliation tests.
.env.example	Renames docker registry credential from `DOCKER_PASSWORD` to `DOCKER_TOKEN`.

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Copilot · 2026-04-12T13:57:09Z

+}
+
+app.UseHttpsRedirection();
+app.MapControllers();
+
+app.MapGet("/health", () => Results.Ok(new { status = "ok" }));
+app.MapGet("/database/config", ([FromServices] IConfiguration config) =>
+    Results.Ok(new
+    {
+        Host = dbHost,
+        User = dbUser,
+        Database = dbName,
+        ConnectionString = config.GetConnectionString("DefaultConnection")
+    }));


The /database/config endpoint returns the resolved ConnectionString, which includes the database password. This leaks credentials to any caller and should be removed or restricted (e.g., only enabled in Development and never include secrets in responses).

Suggested change

}

app.UseHttpsRedirection();

app.MapControllers();

app.MapGet("/health", () => Results.Ok(new { status = "ok" }));

app.MapGet("/database/config", ([FromServices] IConfiguration config) =>

Results.Ok(new

{

Host = dbHost,

User = dbUser,

Database = dbName,

ConnectionString = config.GetConnectionString("DefaultConnection")

}));

app.MapGet("/database/config", () =>

Results.Ok(new

{

Host = dbHost,

User = dbUser,

Database = dbName

}));

}

app.UseHttpsRedirection();

app.MapControllers();

app.MapGet("/health", () => Results.Ok(new { status = "ok" }));

Copilot · 2026-04-12T13:57:09Z

+	if container.Image != "postgres:18" {
+		t.Errorf("Expected image %q, got %q", "postgres:18", container.Image)


This test passes version "16" into GenerateDatabaseStatefulSet(...) but asserts the image is postgres:18. Since the image is generated from the provided version, this expectation will fail unless the input version (or the generator) is updated consistently.

Suggested change

if container.Image != "postgres:18" {

t.Errorf("Expected image %q, got %q", "postgres:18", container.Image)

if container.Image != "postgres:16" {

t.Errorf("Expected image %q, got %q", "postgres:16", container.Image)

Copilot · 2026-04-12T13:57:10Z

 				Template: corev1.PodTemplateSpec{
 					Spec: corev1.PodSpec{
-						Containers: []corev1.Container{{Name: "postgres", Image: "postgres:15"}},
+						Containers: []corev1.Container{{Name: "postgres", Image: "postgres:18"}},
 					},
 				},


ReconcileInstances uses the database trait version ("16" in this test app) to set the StatefulSet image, but this test expects postgres:18. Align the expected image (and the existingSts seed image) with the trait version, or update the trait version if the default is being bumped.

Copilot · 2026-04-12T13:57:10Z

+      - db
+
+  db:
+    image: postgres:18-alpine


Local docker-compose uses postgres:18-alpine, but the operator's default Postgres version is 16 (apps/operator/internal/controller/database/traits.go:19). Consider aligning the local dev image tag with the platform default (or parameterizing it) to avoid version drift between local and cluster environments.

Suggested change

image: postgres:18-alpine

image: postgres:16-alpine

…sers/hph/impl/template-dotnet

NgocAnhDo26 · 2026-04-14T14:55:53Z

Can you resolve the conflicts?

NgocAnhDo26 · 2026-04-14T14:56:58Z

Also, can you provide screenshots to prove that the new template can be created, CI/CD pipeline run and deployed successfully?

PhuocHoan · 2026-04-15T15:38:07Z

These are screenshots that prove the template is working appropriately.

screencapture-127-0-0-1-8080-applications-argocd-pr68-dotnet-api-argocd-2026-04-15-22_19_39

screencapture-localhost-3000-catalog-default-component-pr68-dotnet-api-database-2026-04-15-22_19_17

screencapture-localhost-3000-catalog-default-component-pr68-dotnet-api-kubernetes-2026-04-15-22_18_20

screencapture-localhost-3000-catalog-default-component-pr68-dotnet-api-argo-cd-2026-04-15-22_18_02

screencapture-localhost-3000-catalog-default-component-pr68-dotnet-api-2026-04-15-22_16_41

screencapture-localhost-3000-catalog-default-component-pr68-dotnet-api-ci-cd-2026-04-15-22_17_08

screencapture-127-0-0-1-3030-helios-platform-pr68-dotnet-api-gitops-commits-branch-main-2026-04-15-22_16_28

screencapture-127-0-0-1-3030-helios-platform-pr68-dotnet-api-git-2026-04-15-22_16_19

PhuocHoan added 3 commits April 12, 2026 18:09

feat(portal): add .NET 10 Web API backstage template with postgres wi…

f69be3a

…ring

chore: update prereq scripts and operator test expectations

4ea9c93

portal: refine template descriptions and local CORS origins

95e1f1a

Copilot AI review requested due to automatic review settings April 12, 2026 13:53

Copilot started reviewing on behalf of PhuocHoan April 12, 2026 13:53 View session

Copilot AI reviewed Apr 12, 2026

View reviewed changes

PhuocHoan added 2 commits April 13, 2026 10:09

Upgrade dotnet template and postgres defaults to latest

e7946e9

Merge branch 'features/sprint4-backend-templates-db-injection' into u…

cf86730

…sers/hph/impl/template-dotnet

PhuocHoan added 5 commits April 15, 2026 15:59

Merge base branch and resolve template/setup conflicts

18cc2e1

Update dotnet template to SDK 10.0.202 and add PR68 evidence guide

2edfa6a

Remove PR68 evidence guide from tracked files

1a68e88

fix tekton and portal local dev integration

2f1779e

fix portal prettier formatting

8663db2

NgocAnhDo26 linked an issue Apr 18, 2026 that may be closed by this pull request

Create .NET (C#) Web API Backstage Template #56

Closed

5 tasks

NgocAnhDo26 merged commit c30b5b9 into features/sprint4-backend-templates-db-injection Apr 18, 2026
5 checks passed

NgocAnhDo26 deleted the users/hph/impl/template-dotnet branch April 18, 2026 08:15

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Setup .NET template#68

Setup .NET template#68
NgocAnhDo26 merged 10 commits into
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users/hph/impl/template-dotnet

PhuocHoan commented Apr 12, 2026

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		if container.Image != "postgres:18" {
		t.Errorf("Expected image %q, got %q", "postgres:18", container.Image)

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PhuocHoan commented Apr 12, 2026

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