Merge pull request #65 from elkouhen/master

Added Weave Network

README.md

@@ -62,8 +62,11 @@ Whether to enable the Kubernetes web dashboard UI (only accessible on the master
       # Calico CNI.
       # cni: 'calico'
       # cidr: '192.168.0.0/16'
-
+      # Weave CNI.
-This role currently supports `flannel` (default) or `calico` for cluster pod networking. Choose one or the other for your cluster; converting between the two is not done automatically and could result in broken networking, and should be done outside of this role.
+      # cni: 'weave'
+      # cidr: '192.168.0.0/16'
+      
+This role currently supports `flannel` (default), `calico` or `weave` for cluster pod networking. Choose one or the other for your cluster; converting between the three is not done automatically and could result in broken networking, and should be done outside of this role.
 
     kubernetes_apiserver_advertise_address: ''
     kubernetes_version_kubeadm: 'stable-{{ kubernetes_version }}'

tasks/master-setup.yml

@@ -44,6 +44,19 @@
   changed_when: "'created' in calico_result.stdout"
   when: kubernetes_pod_network.cni == 'calico'
 
+- name: "Get K8s version"
+  shell: kubectl version | base64 | tr -d '\n'
+  register: k8_version
+  when: kubernetes_pod_network.cni == 'weave'
+
+- name: Configure Weave networking.
+  command: "{{ item }}"
+  with_items:
+    - "kubectl apply -f https://cloud.weave.works/k8s/net?k8s-version={{ k8_version.stdout_lines[0] }}"
+  register: weave_result
+  changed_when: "'created' in weave_result.stdout"
+  when: kubernetes_pod_network.cni == 'weave'
+
 # TODO: Check if taint exists with something like `kubectl describe nodes`
 # instead of using kubernetes_init_stat.stat.exists check.
 - name: Allow pods on master node (if configured).