Feature/dev 243

group_vars/k8s-cluster/plain.yml

@@ -4,3 +4,4 @@ cloud_provider: external
 kube_network_plugin: calico
 kubelet_preferred_address_types: InternalIP,ExternalIP,Hostname
 docker_log_opts: "--log-opt max-size=100m --log-opt max-file=5 --log-opt compress=true"
+helm_enabled: true

kubernetes.yml

@@ -1,4 +1,7 @@
 ---
 - hosts: k8s-cluster
   roles:
-    - kubernetes-ccm
+    - kubernetes-base
+#    - kubernetes-ccm    # DEV-243 is waiting for hetzner support << Ticket#2021110303010972 RE: Anderes Problem (Server: #15275628) >>
+    - kubernetes-certmanager
+    - kubernetes-ingress

roles/kubernetes-base/tasks/main.yml

@@ -0,0 +1,17 @@
+---
+- name: k8s-base | install needed pip dependencies
+  ansible.builtin.package:
+    name: "{{ item }}"
+    state: latest
+  loop:
+    - python3-pip
+  when:
+  - inventory_hostname == groups['kube-master'][0]
+
+- name: k8s-base | install needed pip dependencies
+  pip:
+    name: "{{ item }}"
+  loop:
+    - kubernetes
+  when:
+  - inventory_hostname == groups['kube-master'][0]

roles/kubernetes-ccm/tasks/main.yml

@@ -1,19 +1,5 @@
 ---
-- name: K8S-CCM | install needed pip dependencies
-  ansible.builtin.package:
-    name:
-      - python3-pip
-    state: latest
-  when:
-  - inventory_hostname == groups['kube-master'][0]
-
-- name: K8S-CCM | install needed pip dependencies
-  pip:
-    name: kubernetes
-  when:
-  - inventory_hostname == groups['kube-master'][0]
-
-- name: K8S-CCM | download Hetzner CCM
+- name: k8s-CCM | download Hetzner CCM
   ansible.builtin.get_url:
     url: https://github.com/hetznercloud/hcloud-cloud-controller-manager/releases/download/v1.12.0/ccm-networks.yaml
     dest: /tmp/ccm.yaml
@@ -21,7 +7,7 @@
   when:
   - inventory_hostname == groups['kube-master'][0]
 
-- name: K8S-CCM | create secret for Hetzner CCM
+- name: k8s-CCM | create secret for Hetzner CCM
   community.kubernetes.k8s:
     definition:
       api_version: v1
@@ -39,7 +25,7 @@
   when: 
   - inventory_hostname == groups['kube-master'][0]
 
-- name: K8S-CCM | Apply Hetzner CCM manifest to the cluster.
+- name: k8s-CCM | Apply Hetzner CCM manifest to the cluster.
   community.kubernetes.k8s:
     state: present
     src: /tmp/ccm.yaml

roles/kubernetes-certmanager/defaults/main.yml

@@ -0,0 +1,12 @@
+---
+k8s_certmanager_helm__release_values:
+  installCRDs: true
+  webhook.timeoutSeconds: 4
+
+k8s_certmanager_helm__cluster_issuers:
+  prod:
+    email: friedrich.goerz@netgo.de
+    server: https://acme-v02.api.letsencrypt.org/directory
+  staging:
+    email: friedrich.goerz@netgo.de
+    server: https://acme-staging-v02.api.letsencrypt.org/directory

roles/kubernetes-certmanager/tasks/main.yml

@@ -0,0 +1,51 @@
+---
+- name: k8s-certmanager | install cert-manager via helm
+  community.kubernetes.helm:
+    name: cert-manager
+    chart_ref: "{{ k8s_certmanager_helm__chart_ref | default('jetstack/cert-manager') }}"
+    chart_version: "{{ k8s_certmanager_helm__chart_version | default('v1.5.4') }}"
+    release_namespace: "{{ k8s_certmanager_helm__release_namespace | default('cert-manager') }}"
+    create_namespace: yes
+    release_values: "{{ k8s_certmanager_helm__release_values }}"
+  when:
+  - inventory_hostname == groups['kube-master'][0]
+
+- name: k8s-certmanager | create secret for digitalocean-dns
+  community.kubernetes.k8s:
+    definition:
+      api_version: v1
+      kind: Secret
+      metadata:
+        namespace: "{{ k8s_certmanager_helm__release_namespace | default('cert-manager') }}"
+        name: digitalocean-dns
+      type: Opaque
+      data:
+        access-token: "{{ digitalocean_authentication_token | string | b64encode }}"
+  when: 
+  - inventory_hostname == groups['kube-master'][0]
+
+- name: k8s-certmanager | create ClusterIssuer_letsencrypt_prod 
+  community.kubernetes.k8s:
+    definition:
+      api_version: cert-manager.io/v1
+      kind: ClusterIssuer
+      metadata:
+        name: "letsencrypt-{{ item.key }}"
+      spec:
+        acme:
+          email: "{{ item.value.email }}"
+          server: "{{ item.value.server }}"
+          privateKeySecretRef:
+            name: issuer-account-key
+          solvers:
+          - dns01:
+              digitalocean:
+                tokenSecretRef:
+                  name: digitalocean-dns
+                  key: access-token
+            selector:
+              dnsZones:
+              - 'smardigo.digital'
+  loop: "{{ k8s_certmanager_helm__cluster_issuers | dict2items }}"
+  when: 
+  - inventory_hostname == groups['kube-master'][0]

roles/kubernetes-ingress/defaults/main.yml

@@ -0,0 +1,31 @@
+---
+k8s_ingress_helm__release_values:
+      controller:
+        replicaCount: 2
+        config:
+          use-forwarded-headers: "true"
+          compute-full-forwarded-for: "true"
+          use-proxy-protocol: "true"
+          ssl-ciphers: "EECDH+AESGCM:EDH+AESGCM"
+          ssl-protocols: "TLSv1.3"
+        service:
+          externalTrafficPolicy: Local
+          healthCheckNodePort: &healthchecknodeport  31066
+          nodePorts:
+            http: &httpnodeport 30473
+            https: 30474
+          annotations:
+            load-balancer.hetzner.cloud/location: nbg1
+            load-balancer.hetzner.cloud/name: "{{ stage }}-ingress"
+            load-balancer.hetzner.cloud/type: "lb11"
+            load-balancer.hetzner.cloud/disable-public-network: "true"
+            load-balancer.hetzner.cloud/network-zone: "dev"
+            load-balancer.hetzner.cloud/use-private-ip: "true"
+            load-balancer.hetzner.cloud/uses-proxyprotocol: "true"
+            load-balancer.hetzner.cloud/health-check-interval: "3s"
+            load-balancer.hetzner.cloud/health-check-timeout: "1s"
+            load-balancer.hetzner.cloud/health-check-retries: 3
+            load-balancer.hetzner.cloud/health-check-protocol: "tcp"
+            load-balancer.hetzner.cloud/health-check-port: *httpnodeport
+      defaultBackend:
+        enabled: true

roles/kubernetes-ingress/files/hello-node__fullobjects.yaml

@@ -0,0 +1,65 @@
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: hello-node
+  name: hello-node
+  namespace: default
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: hello-node
+  template:
+    metadata:
+      labels:
+        app: hello-node
+    spec:
+      containers:
+      - image: k8s.gcr.io/echoserver:1.4
+        name: echoserver
+---
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: hello-node
+  name: hello-node
+  namespace: default
+spec:
+  ports:
+  - port: 8080
+    protocol: TCP
+    targetPort: 8080
+  selector:
+    app: hello-node
+---
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  annotations:
+    cert-manager.io/cluster-issuer: letsencrypt-prod
+    cert-manager.io/issue-temporary-certificate: "true"
+    kubernetes.io/ingress.class: nginx
+    nginx.ingress.kubernetes.io/preserve-trailing-slash: "true"
+    nginx.ingress.kubernetes.io/rewrite-target: /
+    nginx.ingress.kubernetes.io/ssl-redirect: "false"
+  name: ingress-nginx-helloworld
+  namespace: default
+spec:
+  rules:
+  - host: microservice.smardigo.digital
+    http:
+      paths:
+      - backend:
+          service:
+            name: hello-node
+            port:
+              number: 8080
+        path: /
+        pathType: Prefix
+  tls:
+  - hosts:
+    - microservice.smardigo.digital
+    secretName: myingress-cert

roles/kubernetes-ingress/tasks/main.yml

@@ -0,0 +1,24 @@
+---
+- name: k8s-ingress | install ingress via helm
+  community.kubernetes.helm:
+    name: ingress
+    chart_repo_url: "{{ k8s_ingress_helm__chart_repo_url | default('https://kubernetes.github.io/ingress-nginx') }}"
+    chart_ref: "{{ k8s_ingress_helm__chart_ref | default('ingress-nginx') }}"
+    chart_version: "{{ k8s_ingress_helm__chart_version | default('4.0.6') }}"
+    release_namespace: "{{ k8s_ingress_helm__release_namespace | default('ingress') }}"
+    create_namespace: yes
+    release_values: "{{ k8s_ingress_helm__release_values }}"
+  when:
+  - inventory_hostname == groups['kube-master'][0]
+
+- set_fact:
+    ingress_demo_app: "{{ lookup('file','hello-node__fullobjects.yaml') }}"
+  when: 
+  - inventory_hostname == groups['kube-master'][0]
+
+- name: k8s-ingress | adding hello-node test app 
+  community.kubernetes.k8s:
+    state: "{{ k8s_ingress_helm__enable_demoapp | default('absent') }}"
+    definition: "{{ ingress_demo_app }}"
+  when: 
+  - inventory_hostname == groups['kube-master'][0]