Add etcd TLS support

roles/kubernetes/master/defaults/main.yml

@@ -28,3 +28,9 @@ kube_apiserver_insecure_bind_address: 127.0.0.1
 
 # Logging directory (sysvinit systems)
 kube_log_dir: "/var/log/kubernetes"
+
+# ETCD cert dir for connecting apiserver to etcd
+etcd_config_dir: /etc/ssl/etcd
+etcd_cert_dir: "{{ etcd_config_dir }}/ssl"
+
+

roles/kubernetes/master/templates/manifests/kube-apiserver.manifest.j2

@@ -14,6 +14,9 @@ spec:
     - --advertise-address={{ ip | default(ansible_default_ipv4.address) }}
     - --etcd-servers={{ etcd_access_endpoint }}
     - --etcd-quorum-read=true
+    - --etcd-cafile={{ etcd_cert_dir }}/ca.pem
+    - --etcd-certfile={{ etcd_cert_dir }}/node.pem
+    - --etcd-keyfile={{ etcd_cert_dir }}/node-key.pem
     - --insecure-bind-address={{ kube_apiserver_insecure_bind_address }}
     - --apiserver-count={{ kube_apiserver_count }}
     - --admission-control=NamespaceLifecycle,LimitRanger,ServiceAccount,DefaultStorageClass,ResourceQuota
@@ -50,6 +53,9 @@ spec:
     - mountPath: /etc/ssl/certs
       name: ssl-certs-host
       readOnly: true
+    - mountPath: {{ etcd_cert_dir }}
+      name: etcd-certs
+      readOnly: true
     - mountPath: /var/log/
       name: logfile
   volumes:
@@ -59,7 +65,9 @@ spec:
   - hostPath:
       path: /etc/ssl/certs/
     name: ssl-certs-host
+  - hostPath:
+      path: {{ etcd_cert_dir }}
+    name: etcd-certs
   - hostPath:
       path: /var/log/
     name: logfile
-