feat: move kubernetes dir into templates to support jinja2 across all files (#831)

template/templates/kubernetes/apps/networking/external-dns/app/helmrelease.yaml.j2

@@ -0,0 +1,50 @@
+---
+apiVersion: helm.toolkit.fluxcd.io/v2beta1
+kind: HelmRelease
+metadata:
+  name: &app external-dns
+  namespace: networking
+spec:
+  interval: 30m
+  chart:
+    spec:
+      chart: external-dns
+      version: 1.13.0
+      sourceRef:
+        kind: HelmRepository
+        name: external-dns
+        namespace: flux-system
+  maxHistory: 2
+  install:
+    createNamespace: true
+    remediation:
+      retries: 3
+  upgrade:
+    cleanupOnFail: true
+    remediation:
+      retries: 3
+  uninstall:
+    keepHistory: false
+  values:
+    fullnameOverride: *app
+    provider: cloudflare
+    env:
+      - name: CF_API_TOKEN
+        valueFrom:
+          secretKeyRef:
+            name: external-dns-secret
+            key: api-token
+    extraArgs:
+      - --annotation-filter=external-dns.alpha.kubernetes.io/target
+      - --cloudflare-proxied
+      - --crd-source-apiversion=externaldns.k8s.io/v1alpha1
+      - --crd-source-kind=DNSEndpoint
+    policy: sync
+    sources: ["crd", "ingress"]
+    txtPrefix: k8s.
+    txtOwnerId: default
+    domainFilters: ["${SECRET_DOMAIN}"]
+    serviceMonitor:
+      enabled: true
+    podAnnotations:
+      secret.reloader.stakater.com/reload: external-dns-secret