Configure MCP servers to use Harbor OCI registry

- Updated Chart.yaml dependencies to use OCI registry
- Added HelmRepository resource for Harbor
- Created Harbor registry secret (SOPS-encrypted)
- Updated HelmRelease to use HelmRepository instead of Git source
- Packaged and pushed all 16 MCP charts to Harbor OCI registry
- Updated .sops.yaml to handle platform secrets

All MCP charts are now available at:
oci://images.caffeinetux.com/mcp-charts

platform/mcp-servers/Chart.yaml

@@ -19,61 +19,61 @@ sources:
 dependencies:
   - name: mcp-gateway
     version: "1.0.0"
-    repository: "file://../mcp-gateway"
+    repository: "oci://images.caffeinetux.com/mcp-charts"
     condition: mcp-gateway.enabled
   - name: n8n-mcp
     version: "1.0.0"
-    repository: "file://../n8n-mcp"
+    repository: "oci://images.caffeinetux.com/mcp-charts"
     condition: n8n-mcp.enabled
   - name: playwright-mcp
     version: "1.0.0"
-    repository: "file://../playwright-mcp"
+    repository: "oci://images.caffeinetux.com/mcp-charts"
     condition: playwright-mcp.enabled
   - name: kubernetes-mcp
     version: "1.0.0"
-    repository: "file://../kubernetes-mcp"
+    repository: "oci://images.caffeinetux.com/mcp-charts"
     condition: kubernetes-mcp.enabled
   - name: github-mcp
     version: "1.0.0"
-    repository: "file://../github-mcp"
+    repository: "oci://images.caffeinetux.com/mcp-charts"
     condition: github-mcp.enabled
   - name: postgresql-mcp
     version: "1.0.0"
-    repository: "file://../postgresql-mcp"
+    repository: "oci://images.caffeinetux.com/mcp-charts"
     condition: postgresql-mcp.enabled
   - name: sqlite-mcp
     version: "1.0.0"
-    repository: "file://../sqlite-mcp"
+    repository: "oci://images.caffeinetux.com/mcp-charts"
     condition: sqlite-mcp.enabled
   - name: prometheus-mcp
     version: "1.0.0"
-    repository: "file://../prometheus-mcp"
+    repository: "oci://images.caffeinetux.com/mcp-charts"
     condition: prometheus-mcp.enabled
   - name: slack-mcp
     version: "1.0.0"
-    repository: "file://../slack-mcp"
+    repository: "oci://images.caffeinetux.com/mcp-charts"
     condition: slack-mcp.enabled
   - name: s3-mcp
     version: "1.0.0"
-    repository: "file://../s3-mcp"
+    repository: "oci://images.caffeinetux.com/mcp-charts"
     condition: s3-mcp.enabled
   - name: filesystem-mcp
     version: "1.0.0"
-    repository: "file://../filesystem-mcp"
+    repository: "oci://images.caffeinetux.com/mcp-charts"
     condition: filesystem-mcp.enabled
   - name: puppeteer-mcp
     version: "1.0.0"
-    repository: "file://../puppeteer-mcp"
+    repository: "oci://images.caffeinetux.com/mcp-charts"
     condition: puppeteer-mcp.enabled
   - name: fetch-mcp
     version: "1.0.0"
-    repository: "file://../fetch-mcp"
+    repository: "oci://images.caffeinetux.com/mcp-charts"
     condition: fetch-mcp.enabled
   - name: memory-mcp
     version: "1.0.0"
-    repository: "file://../memory-mcp"
+    repository: "oci://images.caffeinetux.com/mcp-charts"
     condition: memory-mcp.enabled
   - name: gitea-mcp
     version: "1.0.0"
-    repository: "file://../gitea-mcp"
+    repository: "oci://images.caffeinetux.com/mcp-charts"
     condition: gitea-mcp.enabled

platform/mcp-servers/harbor-secret.enc.yaml

@@ -0,0 +1,28 @@
+apiVersion: v1
+kind: Secret
+metadata:
+    name: harbor-registry-secret
+    namespace: flux-system
+type: kubernetes.io/dockerconfigjson
+stringData:
+    .dockerconfigjson: ENC[AES256_GCM,data:BkaiHpVTfTZRrP8+OMYyW99VJukKX4YaBqZ2W5+kPPHPGHUOR1B29JZGANuRRcWXyZKpwdnKchmMuPt4tvNXc8as+aXzjPqrFSHgoN/OW741rCUJJFlPSG+yIRzW0SRt9lcV+MguopAIRKukDNTM85HLBGnnBErGAgDDC2ebkQb66cmeDqBfXzq/kXu2tdsI+vVAoOBAr7gqFKMREYuaZEzM/h9c/Mn9NTASiAM=,iv:pkjoSBKKI1xd5rXIAmUXHrB2y1GULVo6lCL71ZbA5/Y=,tag:hqciSQi6NzYrysKZp7LZ4Q==,type:str]
+sops:
+    kms: []
+    gcp_kms: []
+    azure_kv: []
+    hc_vault: []
+    age:
+        - recipient: age1c7ke5ajhtzua7lrvzsg2p7krnnqv5jhvafh4lsl2s022j46jggnss4rxry
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBkTmV2M216RDRUMXVwRnlC
+            d1F1ZEl2ZS9pNSs5Y2F0bjJqNHFoQXpieWpJCmtiNTJVenloNEJYRUFPN2JIMEN2
+            blRvMDBiZ3pCaDRZTzhDWm1kZjZPNncKLS0tIE5OMGl0S0I4VXF0YXBqeWxGUGFv
+            bDlMZHNKcE9CNFBucG1oYXJyWWxLTVEKDV05XZgG0+fKzKYDiFuU0TD5Ml/fno41
+            UQcxgkiBTabv0ajtsGBUQ1/A5D+vL0SwPo7PHzH+drE63PVxekTl3w==
+            -----END AGE ENCRYPTED FILE-----
+    lastmodified: "2025-11-16T08:04:02Z"
+    mac: ENC[AES256_GCM,data:JdAT1Hm2DpNQcPWNYC/BI/0yuzWAFyCDZ4SwLR0eZOelYV28R83oYKC4tnCNTwEKm8/tgACLkq0ndfAei0N3cNFGr5o0gCReeN1KQFu1/URENYxLVVofg033AVZEeK8R/TAZkXndhd6HUYhHQatX1l5ro6hLrcItPAYl1s0AFBI=,iv:AfHDa+p1O3/cpcXTG/+CXq0yzlFJ9QBUBAh1UCj+pwo=,tag:a9gaISxT7iJ/1RcHoFwPgg==,type:str]
+    pgp: []
+    encrypted_regex: ^(data|stringData|password|token|apiKey|secret|key|auth|\.dockerconfigjson)$
+    version: 3.9.2

platform/mcp-servers/helmrelease.yaml

@@ -8,10 +8,11 @@ spec:
   timeout: 5m
   chart:
     spec:
-      chart: ./platform/mcp-servers
+      chart: mcp-umbrella
+      version: "1.0.0"
       sourceRef:
-        kind: GitRepository
-        name: flux-system
+        kind: HelmRepository
+        name: mcp-charts
         namespace: flux-system
       interval: 5m
 

platform/mcp-servers/helmrepository.yaml

@@ -0,0 +1,11 @@
+apiVersion: source.toolkit.fluxcd.io/v1beta2
+kind: HelmRepository
+metadata:
+  name: mcp-charts
+  namespace: flux-system
+spec:
+  type: oci
+  url: oci://images.caffeinetux.com/mcp-charts
+  interval: 5m
+  secretRef:
+    name: harbor-registry-secret

platform/mcp-servers/kustomization.yaml

@@ -1,11 +1,11 @@
 apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 
-namespace: mcp
-
 resources:
   - namespace.yaml
   - secrets.enc.yaml
+  - harbor-secret.enc.yaml
+  - helmrepository.yaml
   - helmrelease.yaml
 
 # SOPS decryption for encrypted secrets