feat: simple hello service

playbooks/install_k8s.yml

@@ -232,13 +232,14 @@
   gather_facts: false
   hosts: control
   tasks:
-    - name: Remove schedule taint to nodes.
+    # This makes sure Hetzer gives the nodes a proper Provider ID.
+    - name: Add schedule taint to nodes.
       kubernetes.core.k8s_taint:
-        state: absent
+        state: present
         name: "{{ item }}"
         taints:
           - key: node.cloudprovider.kubernetes.io/uninitialized
-            value: true
+            value: "true"
             effect: NoSchedule
       loop: [node-a, node-b]
 
@@ -264,3 +265,28 @@
         state: present
         update_repo_cache: true
         values_files: [IngressValues.yml]
+
+- name: Connect DNS to the Load Balancer.
+  gather_facts: false
+  vars_files:
+    - ../vault.yml
+  hosts: localhost
+  tasks:
+    - name: Get the IP address of the LB.
+      hetzner.hcloud.load_balancer_info:
+        api_token: "{{ secrets.hcloud_token }}"
+        name: "hetzner-lb"
+      register: hetzner_lb_info
+
+    - name: Connect DNS.
+      vars:
+        ip_address: "{{ hetzner_lb_info.hcloud_load_balancer_info[0].ipv4_address }}"
+      hetzner.hcloud.zone_rrset:
+        api_token: "{{ secrets.hcloud_token }}"
+        zone: "{{ secrets.zone_name }}"
+        name: "{{ item }}"
+        type: A
+        records:
+          - value: "{{ ip_address }}"
+        state: present
+      loop: ["*", "@"]

templates/HelloService.yml.jinja2

@@ -0,0 +1,51 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: hello-app
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: hello
+  template:
+    metadata:
+      labels:
+        app: hello
+    spec:
+      containers:
+        - name: hello
+          image: hashicorp/http-echo
+          args: ["-text=Hello from Kubernetes!"]
+          ports:
+            - containerPort: 5678
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: hello-service
+spec:
+  selector:
+    app: hello
+  ports:
+    - port: 80
+      targetPort: 5678
+---
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: hello-ingress
+  annotations:
+    nginx.ingress.kubernetes.io/rewrite-target: /
+spec:
+  ingressClassName: nginx
+  rules:
+    - host: hello.maximhutz.com
+      http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: hello-service
+                port:
+                  number: 80

templates/IngressValues.yml.jinja2

@@ -11,7 +11,7 @@ controller:
       load-balancer.hetzner.cloud/use-private-ip: "true"
       load-balancer.hetzner.cloud/protocol: "https"
       load-balancer.hetzner.cloud/network-zone: "eu-central"
-      load-balancer.hetzner.cloud/http-certificates: "managed_cert"
+      load-balancer.hetzner.cloud/http-certificates: "Main Certificate"
       load-balancer.hetzner.cloud/http-redirect-http: "true"
     enableHttp: false
     targetPorts:

terraform/network.tf

@@ -22,6 +22,6 @@ resource "hcloud_network_route" "gateway" {
 
 // A managed certificate for the domain, to be used by the load balancer.
 resource "hcloud_managed_certificate" "managed_cert" {
-  name         = "managed_cert"
+  name         = "Main Certificate"
   domain_names = ["*.${local.domain}", "${local.domain}"]
 }

vault.yml

@@ -1,36 +1,38 @@
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