tahoe-lafs/trac-2024-07-25
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auto-configuration of tub.location for nodes running on EC2 #1629

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opened 2011-12-01 19:04:48 +00:00 by davidsarah · 0 comments
davidsarah commented 2011-12-01 19:04:48 +00:00
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A Tahoe node running on EC2 does not know its external IP address, unless it is configured in nodetub.location. If the external IP changes, as can happen in some circumstances, the node will become inaccessible to external clients (even if it is still connected to an introducer that is using its EC2-internal address, for example).

Potentially, the node could automagically detect that it is running on an EC2 instance (at the same time getting its instance ID), and make an EC2 API call to get its current external IP.
Extra credit if it can change its IP without needing to be restarted.

A Tahoe node running on EC2 does not know its external IP address, unless it is configured in `nodetub.location`. If the external IP changes, as can happen in [some circumstances](http://support.rightscale.com/06-FAQs/FAQ_0160_-_Can_the_public_or_private_IP_addresses_change_on_an_EC2_instance%3F), the node will become inaccessible to external clients (even if it is still connected to an introducer that is using its EC2-internal address, for example). Potentially, the node could [automagically detect that it is running on an EC2 instance](https://forums.aws.amazon.com/message.jspa?messageID=122425) (at the same time getting its instance ID), and make an EC2 API call to get its current external IP. Extra credit if it can change its IP without needing to be restarted.
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Reference: tahoe-lafs/trac-2024-07-25#1629
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