tweaks usage in README to add cache volume #81
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Things will usually work just fine without this, but strictly speaking one wants to persist the ddclient cache via volume in addition to the configuration. Without persisting this cache, every time the container restarts (before the IP address has changed), it will log this warning: ``` nochg: No update required; unnecessary attempts to change to the current address are considered abusive ``` When the cache is persisted as suggested, this warning does not occur.
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It would be better to symlink it out to |
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Description:
I added a new suggested volume to the README to contain the ddclient cache.
Benefits of this PR and context:
Things will usually work just fine without this, but strictly speaking one wants to persist the ddclient cache via volume in addition to the configuration.
Without persisting this cache, every time the container restarts (before the IP address has changed), it will log this warning:
When the cache is persisted as suggested, this warning does not occur, yielding one fewer warning in your servers' application logs which requires learning and/or remembering whether it is safe to ignore.
How Has This Been Tested?
Before making the change, I restarted the container and observed the warning in the log.
After making the change, I started the container (the warning persisted, because the volume was initially empty).
I then restarted the container, and observed the warning was absent from the log.
Source / References:
https://askubuntu.com/questions/317662/ddclient-updates-every-time-and-logs-nochg-no-update-required