Modify rad install to create default resource group and environment

[zachcasper]

Description

rad install kubernetes previously only installed the Radius Helm chart, leaving the cluster without a usable resource group or environment. Users then had to run additional commands (or use rad init) before they could deploy anything. This PR brings rad install kubernetes in line with rad init by automatically creating the default resource group and a default environment (in the default Kubernetes namespace) immediately after a successful Helm install.

Behavior:

• After Helm.InstallRadius succeeds, the runner builds an in-process workspace targeting the just-installed control plane and calls CreateOrUpdateResourceGroup(ctx, "local", "default", …) and CreateOrUpdateEnvironment(ctx, "default", …) with KubernetesCompute{Namespace: "default"}.
• CreateOrUpdate semantics make the calls idempotent — re-running with --reinstall will not corrupt user-edited groups/environments.
• The early-return path for an existing install (without --reinstall) is unchanged: nothing is touched.
• Kube context resolution mirrors what Helm itself targets: --kubecontext if set, otherwise the active context from kubeconfig. If kubeconfig has no active context, a clear error tells the user to pass --kubecontext.
• If the post-install group/environment creation fails (e.g. transient UCP error), the error message tells the user how to recover (rad group create default / rad env create default) so they don't have to reinstall.
• No client-side workspace is persisted to ~/.rad/config.yaml; the workspace used here is in-process only.

Files changed:

• pkg/cli/cmd/install/kubernetes/kubernetes.go: adds ConnectionFactory + KubernetesInterface to Runner, the post-install createDefaultGroupAndEnvironment step, resolveKubeContext helper, default constants, updated Long description.
• pkg/cli/cmd/install/kubernetes/kubernetes_test.go: updates all successful-install tests with the new mock expectations, adds a test for the kubeconfig-fallback path and a test for the empty-current-context failure path. Mock expectations assert Location == LocationGlobal and KubernetesCompute.Namespace == "default" on the env payload.

Type of change

• This pull request fixes a bug in Radius and has an approved issue (issue link required).

Fixes: #11869

Contributor checklist

Please verify that the PR meets the following requirements, where applicable:

• An overview of proposed schema changes is included in a linked GitHub issue.
  • Yes
  • Not applicable
• A design document is added or updated under eng/design-notes/ in this repository, if new APIs are being introduced.
  • Yes
  • Not applicable
• The design document has been reviewed and approved by Radius maintainers/approvers.
  • Yes
  • Not applicable
• A PR for resource-types-contrib is created, if resource types or recipes are affected by the changes in this PR.
  • Yes
  • Not applicable
• A PR for dashboard is created, if the Radius Dashboard is affected by the changes in this PR.
  • Yes
  • Not applicable
• A PR for the documentation repository is created, if the changes in this PR affect the documentation or any user facing updates are made.
  • Yes — rad install kubernetes user-facing behavior changes; docs should call out the new default group/env and the new failure modes.
  • Not applicable

[Copilot]

Pull request overview

This PR updates rad install kubernetes so that, after a successful Helm install, it also ensures a usable default setup by creating a default resource group and a default environment targeting the default Kubernetes namespace—bringing the command in line with rad init.

Changes:

• Add a post-install step to create the default resource group and default environment after Helm installation completes.
• Add kube context resolution logic that falls back to the current kubeconfig context when --kubecontext isn’t provided.
• Update/install unit tests to cover the new post-install behavior and kubeconfig edge cases.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
pkg/cli/cmd/install/kubernetes/kubernetes.go	Adds post-install default resource group/environment creation and kube context resolution helpers.
pkg/cli/cmd/install/kubernetes/kubernetes_test.go	Updates existing tests for new expectations and adds tests for kubecontext fallback and missing current context.

Comments suppressed due to low confidence (1)

pkg/cli/cmd/install/kubernetes/kubernetes.go:235

• CreateOrUpdateResourceGroup / CreateOrUpdateEnvironment are full upserts (PUT) and will update an existing default group/environment to match the payload here. That contradicts the comment about leaving existing resources unchanged and can reset user edits during --reinstall (e.g., environment compute kind/namespace). To preserve user changes, check for existence first (GET; treat 404 as "missing"), and only create when absent (or explicitly skip update when an existing resource differs).

// createDefaultGroupAndEnvironment ensures that a resource group named "default" and an environment named
// "default" exist on the cluster Radius was just installed on. Existing resources with the same names are
// left unchanged (CreateOrUpdate semantics), so re-running install is safe.
func (r *Runner) createDefaultGroupAndEnvironment(ctx context.Context) error {

[codecov]

Codecov Report

❌ Patch coverage is 65.57377% with 21 lines in your changes missing coverage. Please review.
✅ Project coverage is 51.72%. Comparing base (4d3ce52) to head (e98b97c).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
pkg/cli/setup/defaults.go	0.00%	15 Missing ⚠️
pkg/cli/cmd/install/kubernetes/kubernetes.go	86.36%	3 Missing and 3 partials ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #11870   +/-   ##
=======================================
  Coverage   51.71%   51.72%           
=======================================
  Files         725      726    +1     
  Lines       45629    45674   +45     
=======================================
+ Hits        23599    23625   +26     
- Misses      19789    19806   +17     
- Partials     2241     2243    +2     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[willdavsmith]

looks good, left a couple of comments

[radius-functional-tests]

Radius functional test overview

🔍 Go to test action run

Click here to see the test run details

Name	Value
Repository	zachcasper/radius
Commit ref	e98b97c
Unique ID	func892edddda7
Image tag	pr-func892edddda7

• gotestsum 1.13.0
• KinD: v0.29.0
• Dapr: 1.14.4
• Azure KeyVault CSI driver: 1.4.2
• Azure Workload identity webhook: 1.3.0
• Bicep recipe location ghcr.io/radius-project/dev/test/testrecipes/test-bicep-recipes/<name>:pr-func892edddda7
• Terraform recipe location http://tf-module-server.radius-test-tf-module-server.svc.cluster.local/<name>.zip (in cluster)
• applications-rp test image location: ghcr.io/radius-project/dev/applications-rp:pr-func892edddda7
• dynamic-rp test image location: ghcr.io/radius-project/dev/dynamic-rp:pr-func892edddda7
• controller test image location: ghcr.io/radius-project/dev/controller:pr-func892edddda7
• ucp test image location: ghcr.io/radius-project/dev/ucpd:pr-func892edddda7
• deployment-engine test image location: ghcr.io/radius-project/deployment-engine:latest

Test Status

⌛ Building Radius and pushing container images for functional tests...
✅ Recipe publishing succeeded
✅ Container images build succeeded
⌛ Publishing Bicep Recipes for functional tests...
⌛ Starting corerp-cloud functional tests...
✅ Recipe publishing succeeded
⌛ Starting ucp-cloud functional tests...
⌛ Starting corerp-cloud functional tests...
✅ ucp-cloud functional tests succeeded
✅ corerp-cloud functional tests succeeded
✅ ucp-cloud functional tests succeeded
✅ corerp-cloud functional tests succeeded
✅ corerp-cloud functional tests succeeded
✅ corerp-cloud functional tests succeeded