chore: improvements in docs

terraform/configs/cloud-init/control-plane.yaml.tpl

@@ -30,3 +30,8 @@ write_files:
     append: true
     encoding: b64
     content: ${hosts_file}
+  - path: /home/ubuntu/manifest.yaml
+    owner: ubuntu:ubuntu
+    encoding: b64
+    defer: true
+    content: ${manifest_file}

terraform/configs/cloud-init/worker.yaml.tpl

@@ -30,3 +30,8 @@ write_files:
     append: true
     encoding: b64
     content: ${hosts_file}
+  - path: /home/ubuntu/manifest.yaml
+    owner: ubuntu:ubuntu
+    encoding: b64
+    defer: true
+    content: ${manifest_file}

terraform/configs/hosts

@@ -1,7 +0,0 @@
-10.6.6.1  _gateway
-
-10.6.6.10 control-plane
-2001:db8:ca2:2::10 control-plane
-
-10.6.6.20 worker-1
-2001:db8:ca2:2::20 worker-1

terraform/configs/k8s/manifest.yaml

@@ -0,0 +1,38 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: nginx-dualstack
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: nginx-dualstack
+  template:
+    metadata:
+      labels:
+        app: nginx-dualstack
+    spec:
+      containers:
+        - name: nginx
+          image: nginx:alpine
+          ports:
+            - containerPort: 80
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: nginx-dualstack-svc
+spec:
+  type: LoadBalancer
+  externalIPs:
+    - 10.6.6.10
+    - 2001:db8:ca2:2::10
+  selector:
+    app: nginx-dualstack
+  ports:
+    - port: 80
+      targetPort: 80
+  ipFamilyPolicy: PreferDualStack
+  ipFamilies:
+    - IPv4
+    - IPv6

terraform/main.tf

@@ -35,17 +35,18 @@ resource "libvirt_volume" "worker_images" {
 data "template_file" "user_data" {
   for_each = local.user_templates
 
-  template = file("${path.module}/configs/cloud-init/${each.value}")
+  template = file("${path.root}/configs/cloud-init/${each.value}")
   vars = {
-    hosts_file     = base64encode(file("${path.module}/configs/hosts"))
-    ssh_public_key = file("../.ssh/id_rsa.pub")
+    hosts_file     = base64encode(file("${path.root}/../configs/hosts"))
+    manifest_file  = base64encode(file("${path.root}/configs/k8s/manifest.yaml"))
+    ssh_public_key = file("${path.root}/../.ssh/id_rsa.pub")
   }
 }
 
 data "template_file" "network_config" {
   for_each = local.user_templates
 
-  template = file("${path.module}/configs/cloud-init/network.yaml.tpl")
+  template = file("${path.root}/configs/cloud-init/network.yaml.tpl")
   vars = {
     ipv4_address = local.node_addrs[each.key].ipv4
     ipv4_prefix  = local.ipv4_prefix