feat: Authentik | set up authentik + dependencies

Includes redis and changes to pihole, nginx, prometheus and gitea

helm/values/prometheus.values.yaml

@@ -1,10 +1,16 @@
 grafana:
   enabled: true
+  service:
+    type: LoadBalancer
+    annotations:
+      external-dns.alpha.kubernetes.io/hostname: grafana.dogar.dev
   ingress:
     enabled: true
     ingressClassName: nginx-internal
     annotations:
       cert-manager.io/cluster-issuer: cloudflare-issuer
+      cert-manager.io/private-key-algorithm: ED25519
+      cert-manager.io/acme-challenge-type: dns01
     hosts:
       - grafana.dogar.dev
     tls: