問Unable to establish connection to http://controller:35357/v3/auth/tokens: HTTPConnectionPool(host=‘controller‘, port=35357): Max retries exceeded with url: /v3/auth/tokens (Caused by NewConnectionError(‘<requests.packages.urllib3.connection.HTTPConnection object at 0x3a91e90>: Failed to establish a new connection: [Errno -2] Name or service not known‘,)
)

答 controller可否ping通  httpd服務是否啟動

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