registry team mailing list archive

[Ryan Lucio <638449@xxxxxxxxxxxxxxxxxx>]

** Description changed:

  The network node code in trunk that handles adding the flat network ips
  to the redis db does not allow for updates once the ip list has been
  created initially.
  
  nova/network/service.py:167
  
          if not redis.exists('ips') and not len(redis.keys('instances:*')):
              for fixed_ip in FLAGS.flat_network_ips:
    redis.sadd('ips', fixed_ip)
  
  I understand that if the ip list already exists in redis it should not
  necessarily be appended to.. but the whole set should be able to be
  deleted and updated if the ip list provided by the configuration does
  not match the one in redis.
  
  To reproduce:
  
  1) Create a list of ips for a flat network:
  
  --flat_network_ips=192.168.10.220,192.168.10.221,...
  
- 2) Start network node with this flag (and then launch an instance)
+ 2) Start network node with this flag
  
- 3) Verify ips=... set creation in redis.
+ 3) launch instance
  
- 3) stop network node, and create a new ip list:
+ 4) terminate instance
+ 
+ 5) Verify ips=... set existence in redis.
+ 
+ 6) stop network node, and create a new ip list:
  
  --flat_network_ips=10.1.1.1,10.1.1.2,....
  
- 4) restart network node
+ 7) restart network node
  
- 5) Verify that ips=... set has not changed.
+ 8) launch instance (you will see an ip from the original list still)
+ 
+ 9) terminate instance
+ 
+ 8) Verify that ips=... set has not changed.

** Description changed:

  The network node code in trunk that handles adding the flat network ips
  to the redis db does not allow for updates once the ip list has been
  created initially.
  
  nova/network/service.py:167
  
          if not redis.exists('ips') and not len(redis.keys('instances:*')):
              for fixed_ip in FLAGS.flat_network_ips:
    redis.sadd('ips', fixed_ip)
  
  I understand that if the ip list already exists in redis it should not
  necessarily be appended to.. but the whole set should be able to be
  deleted and updated if the ip list provided by the configuration does
  not match the one in redis.
  
  To reproduce:
  
  1) Create a list of ips for a flat network:
  
  --flat_network_ips=192.168.10.220,192.168.10.221,...
  
  2) Start network node with this flag
  
  3) launch instance
  
  4) terminate instance
  
  5) Verify ips=... set existence in redis.
  
  6) stop network node, and create a new ip list:
  
  --flat_network_ips=10.1.1.1,10.1.1.2,....
  
  7) restart network node
  
  8) launch instance (you will see an ip from the original list still)
  
  9) terminate instance
  
- 8) Verify that ips=... set has not changed.
+ 10) Verify that ips=... set has not changed.

-- 
Cannot update the flat network IP address list
https://bugs.launchpad.net/bugs/638449
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