Add OIDC to argocd

apps/templates/authentik-helm.yaml

@@ -71,6 +71,11 @@ spec:
                   secretKeyRef:
                     name: stalwart-oidc-client-secret
                     key: client_secret
+              - name: ARGOCD_OIDC_CLIENT_SECRET
+                valueFrom:
+                  secretKeyRef:
+                    name: argocd-oidc-client-secret
+                    key: client_secret
           server:
             volumes:
               - name: blueprint-vault
@@ -82,6 +87,9 @@ spec:
               - name: blueprint-ldap
                 configMap:
                   name: authentik-blueprint-ldap
+              - name: blueprint-argocd
+                configMap:
+                  name: authentik-blueprint-argocd
             volumeMounts:
               - name: blueprint-vault
                 mountPath: /blueprints/custom/vault-oidc.yaml
@@ -92,6 +100,9 @@ spec:
               - name: blueprint-ldap
                 mountPath: /blueprints/custom/ldap.yaml
                 subPath: ldap.yaml
+              - name: blueprint-argocd
+                mountPath: /blueprints/custom/argocd-oidc.yaml
+                subPath: argocd-oidc.yaml
             ingress:
               enabled: true
               ingressClassName: nginx
@@ -114,6 +125,9 @@ spec:
               - name: blueprint-ldap
                 configMap:
                   name: authentik-blueprint-ldap
+              - name: blueprint-argocd
+                configMap:
+                  name: authentik-blueprint-argocd
             volumeMounts:
               - name: blueprint-vault
                 mountPath: /blueprints/custom/vault-oidc.yaml
@@ -124,6 +138,9 @@ spec:
               - name: blueprint-ldap
                 mountPath: /blueprints/custom/ldap.yaml
                 subPath: ldap.yaml
+              - name: blueprint-argocd
+                mountPath: /blueprints/custom/argocd-oidc.yaml
+                subPath: argocd-oidc.yaml
           postgresql:
             enabled: false
           redis:

argocd/kustomization.yaml

@@ -16,4 +16,5 @@ patches:
       kind: ReplicaSet
       name: argocd-notifications-controller
     path: overlays/argocd-notifications-controller-patch.yaml
-  - path: overlays/argocd-cm.patch.yaml
+  - path: overlays/argocd-cm.patch.yaml
+  - path: overlays/argocd-rbac-cm.patch.yaml

argocd/overlays/argocd-cm.patch.yaml

@@ -6,7 +6,16 @@ metadata:
     app.kubernetes.io/name: argocd-cm
     app.kubernetes.io/part-of: argocd
 data:
-  # kustomize.buildOptions: "--enable-helm" 
+  url: https://argocd.rubenhensen.nl
+  oidc.config: |
+    name: Authentik
+    issuer: https://authentik.rubenhensen.nl/application/o/argocd/
+    clientID: argocd
+    clientSecret: $oidc.authentik.clientSecret
+    requestedScopes:
+      - openid
+      - profile
+      - email
   resource.exclusions: |
     - apiGroups:
       - "velero.io"

argocd/overlays/argocd-rbac-cm.patch.yaml

@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: argocd-rbac-cm
+  labels:
+    app.kubernetes.io/name: argocd-rbac-cm
+    app.kubernetes.io/part-of: argocd
+data:
+  policy.csv: |
+    g, ik@rubenhensen.nl, role:admin
+  scopes: "[email]"

argocd/webhook-es.yaml

@@ -10,12 +10,16 @@ spec:
     kind: ClusterSecretStore
   target:
     template:
-      type: kubernetes.io/dockerconfigjson
       data:
-        webhook.github.secret: "{{ .mysecret | toString }}"
+        webhook.github.secret: "{{ .webhook_secret | toString }}"
+        oidc.authentik.clientSecret: "{{ .oidc_client_secret | toString }}"
     name: argocd-secret
-    creationPolicy: Owner
+    creationPolicy: Merge
   data:
-  - secretKey: mysecret
+  - secretKey: webhook_secret
     remoteRef:
       key: github_secret
+  - secretKey: oidc_client_secret
+    remoteRef:
+      key: kv/argocd-oidc
+      property: client_secret

authentik/blueprint-argocd-oidc.yaml

@@ -0,0 +1,40 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: authentik-blueprint-argocd
+data:
+  argocd-oidc.yaml: |
+    version: 1
+    metadata:
+      name: ArgoCD OIDC
+    entries:
+      - model: authentik_providers_oauth2.oauth2provider
+        id: argocd-provider
+        state: present
+        identifiers:
+          name: ArgoCD
+        attrs:
+          name: ArgoCD
+          authorization_flow: !Find [authentik_flows.flow, [slug, default-provider-authorization-implicit-consent]]
+          authentication_flow: !Find [authentik_flows.flow, [slug, default-authentication-flow]]
+          invalidation_flow: !Find [authentik_flows.flow, [slug, default-provider-invalidation-flow]]
+          client_type: confidential
+          client_id: argocd
+          client_secret: !Env [ARGOCD_OIDC_CLIENT_SECRET, ""]
+          redirect_uris:
+            - matching_mode: strict
+              url: https://argocd.rubenhensen.nl/auth/callback
+          signing_key: !Find [authentik_crypto.certificatekeypair, [name, "authentik Self-signed Certificate"]]
+          property_mappings:
+            - !Find [authentik_providers_oauth2.scopemapping, [managed, goauthentik.io/providers/oauth2/scope-openid]]
+            - !Find [authentik_providers_oauth2.scopemapping, [managed, goauthentik.io/providers/oauth2/scope-email]]
+            - !Find [authentik_providers_oauth2.scopemapping, [managed, goauthentik.io/providers/oauth2/scope-profile]]
+      - model: authentik_core.application
+        id: argocd-app
+        state: present
+        identifiers:
+          slug: argocd
+        attrs:
+          name: ArgoCD
+          provider: !KeyOf argocd-provider
+          meta_launch_url: https://argocd.rubenhensen.nl

authentik/external-secret.yaml

@@ -81,3 +81,21 @@ spec:
       remoteRef:
         key: kv/stalwart-oidc
         property: client_secret
+---
+apiVersion: external-secrets.io/v1beta1
+kind: ExternalSecret
+metadata:
+  name: argocd-oidc-client-secret
+spec:
+  secretStoreRef:
+    name: vault-backend
+    kind: ClusterSecretStore
+  refreshInterval: 15m
+  target:
+    name: argocd-oidc-client-secret
+    creationPolicy: Owner
+  data:
+    - secretKey: client_secret
+      remoteRef:
+        key: kv/argocd-oidc
+        property: client_secret