c12s-kubespray/playbooks/ipro_for_cluster_ips.yaml

# FXIME: add persistent routing rule
- hosts: kube-master
  tasks:
    - name: Get kube service net
      shell: grep KUBE_SERVICE_ADDRESSES /etc/kubernetes/kube-apiserver.env | grep -oE "\b([0-9]{1,3}\.){3}[0-9]{1,3}/[0-9]{1,2}\b"
      register: kube_service_addresses
      run_once: true
- hosts: all
  tasks:
    - name: Get local IP
      shell: "calicoctl status | grep IP: | awk '{print $2}'"
      register: local_ip
    - name: Get route
      shell: ip ro ls | grep "^{{ hostvars[groups['kube-master'][0]]['kube_service_addresses']['stdout'] }}" || echo ""
      register: local_route
    - name: Clean up route
      shell: ip ro del {{ hostvars[groups['kube-master'][0]]['kube_service_addresses']['stdout'] }} || true
      when: local_route.stdout.find('{{ local_ip.stdout }}') == -1
    - name: Setup route
      shell: ip ro add {{ hostvars[groups['kube-master'][0]]['kube_service_addresses']['stdout'] }} via {{ local_ip.stdout }}
      when: local_route.stdout.find('{{ local_ip.stdout }}') == -1