From 3d385fa8acbd4145f8152a3b0793aaf2167a22c7 Mon Sep 17 00:00:00 2001
From: bom <mattis.boeckle@meissa-gmbh.de>
Date: Thu, 21 Jul 2022 16:08:13 +0200
Subject: [PATCH] Use node_ipv4 in traefik

As we are now using NodePools with more than one IP this ensures that the traefik and subsequently ingresses always have the IP-Address associated with the DNS entry and not a randomly selected one.
---
 .../provs/server/infrastructure/K3s.kt                       | 5 ++---
 .../k3s/{traefik.yaml => traefik.template.yaml}              | 1 +
 2 files changed, 3 insertions(+), 3 deletions(-)
 rename src/main/resources/org/domaindrivenarchitecture/provs/server/infrastructure/k3s/{traefik.yaml => traefik.template.yaml} (97%)

diff --git a/src/main/kotlin/org/domaindrivenarchitecture/provs/server/infrastructure/K3s.kt b/src/main/kotlin/org/domaindrivenarchitecture/provs/server/infrastructure/K3s.kt
index bb0c6cd..6b53ff0 100644
--- a/src/main/kotlin/org/domaindrivenarchitecture/provs/server/infrastructure/K3s.kt
+++ b/src/main/kotlin/org/domaindrivenarchitecture/provs/server/infrastructure/K3s.kt
@@ -29,7 +29,7 @@ private val k3sInstallScript = File( "/usr/local/bin/k3s-install.sh")
 private val k3sConfigFile = File( "/etc/rancher/k3s/config.yaml")
 private val k3sKubeConfig = File("/etc/rancher/k3s/k3s.yaml")
 
-private val k3sTraefikWorkaround = File(k3sManualManifestsDir, "traefik.yaml")
+private val k3sTraefikWorkaround = File(k3sManualManifestsDir, "traefik.template.yaml")
 private val certManagerDeployment = File(k3sManualManifestsDir, "cert-manager.yaml")
 
 private val certManagerIssuer = File(k3sManualManifestsDir, "le-issuer.yaml")
@@ -100,8 +100,7 @@ fun Prov.installK3s(k3sConfig: K3sConfig): ProvResult {
         // traefik
         if (k3sConfig.isDualStack()) {
             // see https://github.com/k3s-io/k3s/discussions/5003
-            createK3sFileFromResource(k3sTraefikWorkaround)
-            applyK3sFile(k3sTraefikWorkaround)
+            applyK3sFileFromResourceTemplate(k3sTraefikWorkaround, k3sConfigMap)
         } else {
             ProvResult(true)
         }
diff --git a/src/main/resources/org/domaindrivenarchitecture/provs/server/infrastructure/k3s/traefik.yaml b/src/main/resources/org/domaindrivenarchitecture/provs/server/infrastructure/k3s/traefik.template.yaml
similarity index 97%
rename from src/main/resources/org/domaindrivenarchitecture/provs/server/infrastructure/k3s/traefik.yaml
rename to src/main/resources/org/domaindrivenarchitecture/provs/server/infrastructure/k3s/traefik.template.yaml
index 6d1ddef..c1f4b30 100644
--- a/src/main/resources/org/domaindrivenarchitecture/provs/server/infrastructure/k3s/traefik.yaml
+++ b/src/main/resources/org/domaindrivenarchitecture/provs/server/infrastructure/k3s/traefik.template.yaml
@@ -46,6 +46,7 @@ spec:
       effect: "NoSchedule"
     service:
       ipFamilyPolicy: "PreferDualStack"
+      loadBalancerIP: ${node_ipv4}
       spec:
         type: LoadBalancer
         externalTrafficPolicy: Local