Configure git repositories, helm chart museums and dex connectors

This way argo-cd could be configured to update itself via helm

.gitignore

@@ -1,2 +1,3 @@
 output
 .vscode
+.DS_Store

charts/argo-cd/templates/argocd-cm.yaml

@@ -0,0 +1,25 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ include "argo-cd.fullname" . }}-cm
+  labels: 
+    app: {{ include "argo-cd.name" . }}-server
+    app.kubernetes.io/name: {{ include "argo-cd.name" . }}-server
+    helm.sh/chart: {{ include "argo-cd.chart" . }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+    app.kubernetes.io/part-of: {{ include "argo-cd.name" . }}
+    app.kubernetes.io/component: server
+data:
+{{- if .Values.config.helmRepositories }}
+  helm.repositories: |
+{{ toYaml .Values.config.helmRepositories | indent 4 }}
+{{- end }}
+{{- if .Values.config.repositories }}
+  repositories: |
+{{ toYaml .Values.config.repositories | indent 4 }}
+{{- end }}
+{{- if .Values.config.dexConfig }}
+  dex.config: |
+{{ toYaml .Values.config.dexConfig | indent 4 }}
+{{- end }}

charts/argo-cd/values.yaml

@@ -28,6 +28,45 @@ repoServer:
     tag: v0.11.0
     pullPolicy: Always
 
+config:
+  helmRepositories:
+    - name: privateRepo
+      url: http://chartmuseum.privatecloud.com
+      usernameSecret:
+        name: private-chartmuseum
+        key: username
+      passwordSecret:
+        name: private-chartmuseum
+        key: password
+    - name: incubator
+      url: https://kubernetes-charts-incubator.storage.googleapis.com/
+  repositories:
+    - url: git@gitlab.com:usersprivategroup/users-gitops-config.git
+      sshPrivateKeySecret:
+        key: privateKey
+        name: argocd-dev-key
+    - url: git@gitlab.com:accountingprivategroup/accounting-gitops-config.git
+      sshPrivateKeySecret:
+        key: privateKey
+        name: argocd-dev-key
+    dexConfig:
+    #   # Argo CD's externally facing base URL. Required for configuring SSO
+    #   # url: https://argo-cd-demo.argoproj.io
+    #
+    #   # A dex connector configuration. See documentation on how to configure SSO:
+    #   # https://github.com/argoproj/argo-cd/blob/master/docs/sso.md#2-configure-argocd-for-sso
+      connectors:
+        # GitHub example
+        - type: github
+          id: github
+          name: GitHub
+          config:
+            clientID: aabbccddeeff00112233
+            clientSecret: $dex.github.clientSecret
+            orgs:
+            - name: your-github-org
+              teams:
+
 resources: {}
   # We usually recommend not to specify default resources and to leave this as a conscious
   # choice for the user. This also increases chances charts run on environments with little