From be87c09560db52b5d7b6e4966bae46541f2625b5 Mon Sep 17 00:00:00 2001
From: Tine <tine@tjo.space>
Date: Sun, 14 Jul 2024 13:37:57 +0200
Subject: [PATCH] feat: external dns

---
 clusters/pink/kubeconfig    |   2 +-
 clusters/pink/kubernetes.tf | 131 +++++++++++++++++++++++++++++++++---
 clusters/pink/variables.tf  |   5 ++
 3 files changed, 127 insertions(+), 11 deletions(-)

diff --git a/clusters/pink/kubeconfig b/clusters/pink/kubeconfig
index c7d6cca..3871014 100755
--- a/clusters/pink/kubeconfig
+++ b/clusters/pink/kubeconfig
@@ -4,7 +4,7 @@ clusters:
 - name: pink
   cluster:
     server: https://api.pink.k8s.tjo.cloud:6443
-    certificate-authority-data: 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
+    certificate-authority-data: LS0tLS1CRUdJTiBDRVJUSUZJQ0FURS0tLS0tCk1JSUJpakNDQVRDZ0F3SUJBZ0lSQU9vTSthdnlEZkN1THc4TVptRnFnNll3Q2dZSUtvWkl6ajBFQXdJd0ZURVQKTUJFR0ExVUVDaE1LYTNWaVpYSnVaWFJsY3pBZUZ3MHlOREEzTVRReE1UQTFNRGRhRncwek5EQTNNVEl4TVRBMQpNRGRhTUJVeEV6QVJCZ05WQkFvVENtdDFZbVZ5Ym1WMFpYTXdXVEFUQmdjcWhrak9QUUlCQmdncWhrak9QUU1CCkJ3TkNBQVNEU3JVdUk1RFRxMHR4MkM4SmJHWmsvZXJlU0dlQU1tUzgzcE9RZklMbEFaMWE1NjJ4MnZobi9lMHYKWHQ0NmJFbzQ3QWttTlh3eEFNTExSRmkrYjF5V28yRXdYekFPQmdOVkhROEJBZjhFQkFNQ0FvUXdIUVlEVlIwbApCQll3RkFZSUt3WUJCUVVIQXdFR0NDc0dBUVVGQndNQ01BOEdBMVVkRXdFQi93UUZNQU1CQWY4d0hRWURWUjBPCkJCWUVGSGNLNFBEZHNSMmxnbHdRZmUwN2c3L0gralpGTUFvR0NDcUdTTTQ5QkFNQ0EwZ0FNRVVDSVFERm1qeTkKcm4yVXpUN1hTL1pUZW5nbHpIZC9OOFZHU1JIQlQzV0xCbkpZendJZ0hKMFdEd1NoOGJQTHpvSzNxSkNjVDlmQgp1ZmZ0U0ZMVHdhdkNvdmF6Y09BPQotLS0tLUVORCBDRVJUSUZJQ0FURS0tLS0tCg==
 contexts:
 - name: oidc@pink
   context:
diff --git a/clusters/pink/kubernetes.tf b/clusters/pink/kubernetes.tf
index cfe9df3..0205132 100644
--- a/clusters/pink/kubernetes.tf
+++ b/clusters/pink/kubernetes.tf
@@ -78,18 +78,107 @@ resource "kubernetes_manifest" "hetzner-nodes-as-loadbalancers" {
   }
 }
 
-# TODO: Certmanager, externaldns...
+resource "kubernetes_namespace" "tjo-cloud" {
+  metadata {
+    name = "tjo-cloud"
+  }
+}
+
+resource "kubernetes_secret" "digitalocean-token" {
+  metadata {
+    name      = "digitalocean-token"
+    namespace = kubernetes_namespace.tjo-cloud.metadata[0].name
+  }
+  data = {
+    token = var.digitalocean_token
+  }
+}
+
+resource "helm_release" "external-dns" {
+  name       = "external-dns"
+  chart      = "external-dns"
+  repository = "https://kubernetes-sigs.github.io/external-dns/"
+  version    = "v1.14.5"
+  namespace  = kubernetes_namespace.tjo-cloud.metadata[0].name
+
+  set {
+    name  = "namespaced"
+    value = "true"
+  }
+
+  set {
+    name  = "provider"
+    value = "digitalocean"
+  }
+
+  set {
+    name  = "env[0].name"
+    value = "DO_TOKEN"
+  }
+  set {
+    name  = "env[0].valueFrom.secretKeyRef.name"
+    value = kubernetes_secret.digitalocean-token.metadata[0].name
+  }
+  set {
+    name  = "env[0].valueFrom.secretKeyRef.key"
+    value = "token"
+  }
+
+  set_list {
+    name  = "sources"
+    value = ["gateway-httproute", "gateway-tlsroute", "gateway-tcproute", "gateway-udproute", "ingress", "service"]
+  }
+}
+
 resource "helm_release" "cert-manager" {
   name       = "cert-manager"
   chart      = "cert-manager"
   repository = "https://charts.jetstack.io"
   version    = "v1.15.1"
-  namespace  = "kube-system"
+  namespace  = kubernetes_namespace.tjo-cloud.metadata[0].name
 
   set {
     name  = "crds.enabled"
     value = true
   }
+
+  set_list {
+    name  = "extraArgs"
+    value = ["--enable-gateway-api"]
+  }
+}
+
+
+resource "kubernetes_manifest" "tjo-cloud-issuer" {
+  manifest = {
+    apiVersion = "cert-manager.io/v1"
+    kind       = "Issuer"
+    metadata = {
+      name      = "tjo-cloud"
+      namespace = kubernetes_namespace.tjo-cloud.metadata[0].name
+    }
+    spec = {
+      acme = {
+        email  = "tine@tjo.space"
+        server = "https://acme-staging-v02.api.letsencrypt.org/directory"
+        privateKeySecretRef = {
+          name = "tjo-cloud-acme-account"
+        }
+        solvers = [
+          {
+            dns01 = {
+              digitalocean = {
+                tokenSecretRef = {
+                  name = kubernetes_secret.digitalocean-token.metadata[0].name
+                  key  = "token"
+                }
+              }
+            }
+          }
+        ]
+      }
+    }
+  }
 }
 
 resource "kubernetes_manifest" "gateway" {
@@ -98,13 +187,33 @@ resource "kubernetes_manifest" "gateway" {
     kind       = "Gateway"
     metadata = {
       name      = "gateway"
-      namespace = "kube-system"
+      namespace = kubernetes_namespace.tjo-cloud.metadata[0].name
+      annotations = {
+        "cert-manager.io/issuer" : "tjo-cloud"
+      }
     }
     spec = {
       gatewayClassName = "cilium"
       listeners = [
-        { name : "http", protocol : "HTTP", port : 80 },
-        { name : "https", protocol : "HTTPS", port : 443 },
+        {
+          name : "http"
+          hostname : "*.${module.cluster.name}.${module.cluster.domain}"
+          protocol : "HTTPS"
+          port : 443
+          allowedRoutes : {
+            namespaces : {
+              from : "Same"
+            }
+          }
+          tls : {
+            mode : "Terminate"
+            certificateRefs : [
+              {
+                name : "tjo-cloud-tls"
+              }
+            ]
+          }
+        }
       ]
     }
   }
@@ -115,7 +224,7 @@ resource "helm_release" "dashboard" {
   repository = "https://kubernetes.github.io/dashboard"
   chart      = "kubernetes-dashboard"
   version    = "7.5.0"
-  namespace  = "kube-system"
+  namespace  = kubernetes_namespace.tjo-cloud.metadata[0].name
 }
 
 resource "kubernetes_manifest" "dashoard-http-route" {
@@ -128,11 +237,13 @@ resource "kubernetes_manifest" "dashoard-http-route" {
     kind       = "HTTPRoute"
     metadata = {
       name      = "dashboard"
-      namespace = "kube-system"
+      namespace = kubernetes_namespace.tjo-cloud.metadata[0].name
     }
     spec = {
       parentRefs = [
-        { name : "gateway" }
+        {
+          name : "gateway"
+        }
       ]
       hostnames = [
         "dashboard.${module.cluster.name}.${module.cluster.domain}"
@@ -149,8 +260,8 @@ resource "kubernetes_manifest" "dashoard-http-route" {
           ]
           backendRefs = [
             {
-              name : "kubernetes-dashboard-kong-proxy"
-              port : 443
+              name : "kubernetes-dashboard-web"
+              port : 8000
             }
           ]
         }
diff --git a/clusters/pink/variables.tf b/clusters/pink/variables.tf
index 9f71d9e..65c8e3c 100644
--- a/clusters/pink/variables.tf
+++ b/clusters/pink/variables.tf
@@ -19,3 +19,8 @@ variable "oidc_client_id" {
 variable "oidc_issuer_url" {
   type = string
 }
+
+variable "digitalocean_token" {
+  type      = string
+  sensitive = true
+}