Install ToolHive operator via ArgoCD

Co-Authored-By: Claude Opus 4.8 <[email protected]>

.gitignore

@@ -0,0 +1,8 @@
+.ci-schemas/
+.ci-rendered/
+.ci-chart-cache/
+.helm-cache/
+.helm-config/
+.helm-data/
+.DS_Store
+.kube/

README.md

@@ -0,0 +1,47 @@
+# toolhive
+
+Installs the [ToolHive](https://docs.stacklok.com/toolhive) Kubernetes operator
+via Argo CD, so MCP servers can be declared as `MCPServer` custom resources
+(see the `mcp-services` app). Runs in the `toolhive-system` namespace.
+
+## What it deploys
+
+A multi-source Argo CD Application renders two OCI Helm charts plus this repo's
+values:
+
+| Source                                                  | Purpose                          |
+|---------------------------------------------------------|----------------------------------|
+| `oci://ghcr.io/stacklok/toolhive/toolhive-operator-crds`| CRDs (MCPServer, MCPRegistry, …) |
+| `oci://ghcr.io/stacklok/toolhive/toolhive-operator`     | operator Deployment + RBAC       |
+| this repo (`ref: values`)                               | operator Helm values             |
+
+Both charts share a unified version, pinned via `chartVersion` in
+`bootstrap/applicationset.yaml` (currently `0.28.3`). RBAC scope is left
+`cluster` (chart default) so the operator can reconcile MCPServers in
+`mcp-services`.
+
+## Deploy
+
+```bash
+# validate the operator chart renders with our values
+helm template toolhive-operator oci://ghcr.io/stacklok/toolhive/toolhive-operator \
+  --version 0.28.3 -n toolhive-system \
+  -f manifest/overlays/production/helm-values/values.yaml >/dev/null
+
+# enable bootstrap/config.yaml (enabled: true), commit, push to main, then:
+kubectl get pods -n toolhive-system
+kubectl get crd | grep toolhive.stacklok.dev
+```
+
+Deploy this app **before** `mcp-services` — the MCPServer CRs depend on the CRDs
+installed here.
+
+## Bumping the version
+
+```bash
+curl -s 'https://api.github.com/repos/stacklok/toolhive/releases?per_page=10' \
+  | grep tag_name
+```
+
+Update `chartVersion` in `bootstrap/applicationset.yaml` and push. (The CRDs and
+operator charts are released together under the same version number.)

bootstrap/applicationset.yaml

@@ -0,0 +1,51 @@
+apiVersion: argoproj.io/v1alpha1
+kind: ApplicationSet
+metadata:
+  name: toolhive
+  namespace: argocd
+spec:
+  goTemplate: true
+  goTemplateOptions: ["missingkey=error"]
+  generators:
+    - list:
+        elements:
+          - environment: production
+            namespace: toolhive-system
+            overlay: production
+            chartVersion: 0.28.3
+  template:
+    metadata:
+      name: 'toolhive-{{ .environment }}'
+      labels:
+        app.kubernetes.io/managed-by: argocd
+        app.kubernetes.io/name: toolhive
+    spec:
+      project: default
+      sources:
+        # 1. ToolHive CRDs (MCPServer, MCPRegistry, ...). No values needed.
+        - repoURL: ghcr.io/stacklok/toolhive
+          chart: toolhive-operator-crds
+          targetRevision: '{{ .chartVersion }}'
+        # 2. ToolHive operator, values pulled from this repo via $values.
+        - repoURL: ghcr.io/stacklok/toolhive
+          chart: toolhive-operator
+          targetRevision: '{{ .chartVersion }}'
+          helm:
+            releaseName: toolhive-operator
+            valueFiles:
+              - $values/manifest/overlays/{{ .overlay }}/helm-values/values.yaml
+        # 3. Values source ref for the operator chart above.
+        - repoURL: http://gitea-ha-http.apps:3000/olb42/toolhive.git
+          targetRevision: main
+          ref: values
+      destination:
+        server: https://kubernetes.default.svc
+        namespace: '{{ .namespace }}'
+      syncPolicy:
+        automated:
+          prune: true
+          selfHeal: true
+        syncOptions:
+          - CreateNamespace=true
+          # CRD schemas are large; SSA avoids the last-applied-config annotation limit.
+          - ServerSideApply=true

bootstrap/config.yaml

@@ -0,0 +1,3 @@
+enabled: false
+target_namespace: argocd
+apply_from_branch: main

manifest/overlays/production/helm-values/values.yaml

@@ -0,0 +1,13 @@
+# Values for the toolhive-operator Helm chart
+# (oci://ghcr.io/stacklok/toolhive/toolhive-operator), supplied to the Argo CD
+# multi-source ApplicationSet via $values. Validated as Helm values, not as a
+# Kubernetes manifest.
+#
+# The operator runs in toolhive-system but must watch + reconcile MCPServer
+# resources in the mcp-services namespace, so RBAC stays cluster-scoped (the
+# chart default). To restrict it, set scope: namespace and list namespaces.
+
+operator:
+  rbac:
+    scope: cluster
+    allowedNamespaces: []