- name: 创建flannel cni 相关目录
  file: name={{ item }} state=directory
  with_items:
  - /etc/cni/net.d
  - /opt/kube/kube-system/flannel

- name: 下载flannel cni plugins
  copy: src={{ base_dir }}/bin/{{ item }} dest={{ bin_dir }}/{{ item }} mode=0755
  with_items:
  - bridge
  - flannel
  - host-local
  - loopback
  - portmap

- name: 准备 flannel DaemonSet yaml文件
  template: src=kube-flannel.yaml.j2 dest=/opt/kube/kube-system/flannel/kube-flannel.yaml

- name: 获取所有已经创建的POD信息
  command: "{{ bin_dir }}/kubectl get daemonset -n kube-system"
  register: pod_info
  run_once: true

# 只需单节点执行一次
- name: 运行 flannel网络
  shell: "{{ bin_dir }}/kubectl create -f /opt/kube/kube-system/flannel/ && sleep 5"
  run_once: true
  when: '"flannel" not in pod_info.stdout'

# 删除原有cni配置
- name: 删除默认cni配置 
  file: path=/etc/cni/net.d/10-default.conf state=absent

# 等待网络插件部署成功，视下载镜像速度而定
- name: 轮询等待flannel 运行，视下载镜像速度而定
  shell: "{{ bin_dir }}/kubectl get pod -n kube-system -o wide|grep 'flannel'|grep ' {{ inventory_hostname }} '|awk '{print $3}'"
  register: pod_status
  until: pod_status.stdout == "Running"
  retries: 12
  delay: 8