#cloud-config
write_files:
  - path: /etc/systemd/system/create-kube-namespace.service
    owner: "root:root"
    permissions: "0644"
    content: |
      [Unit]
      After=kubelet.service
      Requires=kubelet.service
      Description=Create kube-system namespace

      [Service]
      Type=oneshot
      ExecStart=/etc/sysconfig/create-kube-namespace.sh

      [Install]
      WantedBy=multi-user.target

  - path: /etc/sysconfig/create-kube-namespace.sh
    owner: "root:root"
    permissions: "0755"
    content: |
      #!/bin/sh

      . /etc/sysconfig/heat-params
      myip=$(ip addr show eth0 |
             awk '$1 == "inet" {print $2}' | cut -f1 -d/)

      until curl -sf "http://127.0.0.1:8080/healthz"
      do
          echo "Waiting for Kubernetes API..."
          sleep 5
      done

      KUBE_SYSTEM_JSON=/srv/kubernetes/kube-system-namespace.json
      mkdir -p $(dirname ${KUBE_SYSTEM_JSON})
      cat > ${KUBE_SYSTEM_JSON} <<EOF
      {
        "apiVersion": "v1",
        "kind": "Namespace",
        "metadata": {
          "name": "kube-system"
        }
      }
      EOF

      curl -XPOST -d@${KUBE_SYSTEM_JSON} "http://127.0.0.1:8080/api/v1/namespaces"