hello folks. I use nodepool connect openstack provider occur ssh connect error. my openstack cloud configure public and prviate netowrk. instance create by nodepool wouldn't assign public float-ip automatically. but nodepool would ssh to private network. so ssh failed. log like follow. what should do let nodepool create float-ip and attach to instance.
 on openstck, I create instance manually, it wouldn't assign float-ip automatically. I need generate float-ip and attach to insance, then I can ssh to instance. and when I want create independent float-ip. after a moment, it would be automatic deleted by openstack, is there have config to set?
```
2022-05-10 06:41:42,886 INFO nodepool.NodeLauncher: [e: 337d45649dcb4bf5aa3e41fd92cd9813] [node_request: 900-0000012233] [node: 0000010250] Creating server with hostname ubuntu-focal-openstack-provider-0000010250 in openstack-provider from image ubuntu-focal
2022-05-10 06:43:56,722 ERROR nodepool.NodeLauncher: [e: 337d45649dcb4bf5aa3e41fd92cd9813] [node_request: 900-0000012233] [node: 0000010250] Launch attempt 1/3 failed:
Traceback (most recent call last):
  File "/usr/lib/python3.6/site-packages/nodepool/driver/openstack/handler.py", line 247, in launch
    self._launchNode()
  File "/usr/lib/python3.6/site-packages/nodepool/driver/openstack/handler.py", line 231, in _launchNode
    port=connection_port)
  File "/usr/lib/python3.6/site-packages/nodepool/nodeutils.py", line 79, in nodescan
    "connection to %s on port %s" % (ip, port)):
  File "/usr/lib/python3.6/site-packages/nodepool/nodeutils.py", line 39, in iterate_timeout
    raise exc("Timeout waiting for %s" % purpose)
nodepool.exceptions.ConnectionTimeoutException: Timeout waiting for connection to 172.32.65.152 on port 22
2022-05-10 06:43:57,805 INFO nodepool.NodeLauncher: [e: 337d45649dcb4bf5aa3e41fd92cd9813] [node_request: 900-0000012233] [node: 0000010250] Node b07a474e-c834-4d21-8dc4-4cabb11a3463 scheduled for cleanup
```
nodepool openstack provider configure likeproviders:
  

- name: openstack-provider
    driver: openstack
    cloud: packstack
    region-name: 'RegionOne'
    clean-floating-ips: true
    image-name-format: '{image_name}-{timestamp}'
    boot-timeout: 120
    launch-timeout: 900
    rate: 1.0
    diskimages:
      - name: ubuntu-focal
    pools:
      - name: main
        max-servers: 1
        networks:
          - in-net
        security-groups:
          - default
        auto-floating-ip: True
        labels:
          - name: ubuntu-focal
            min-ram: 4096
            flavor-name: m1.large
            diskimage: ubuntu-focal
```