REFACTOR(authelia): remove kanidm

- and restore authelia
- Delete kanidm folder
- Remove oauth2-proxy from velero
- Restore velero ingress to use authelia middleware
- Update kustomization.yaml to use authelia instead of kanidm

cert-manager/cluster-issuer.yaml

@@ -22,3 +22,20 @@ spec:
     - http01:
         ingress:
           class: traefik
+---
+apiVersion: cert-manager.io/v1
+kind: ClusterIssuer
+metadata:
+  name: letsencrypt-staging
+spec:
+  acme:
+    # Let's Encrypt Staging 서버
+    # 테스트용 - 브라우저에서 신뢰하지 않지만 rate limit 없음
+    server: https://acme-staging-v02.api.letsencrypt.org/directory
+    email: bluemayne0213@icloud.com
+    privateKeySecretRef:
+      name: letsencrypt-staging
+    solvers:
+    - http01:
+        ingress:
+          class: traefik