A timeout config value is added for each collector which uses requests
to fetch data, and this value is used for any requests calls.
Without a timeout a request may stall indefinitely and
os-collect-config will stop polling.
A timeout default of 10 seconds is chosen as the default. This is used
for both the connection timeout and the read timeout.
This isn't quite right and broke on stable/liberty. Pushing
a revert in case I3c22d77dece399d21ab94783b74990789a1e1481
doesn't actually fix the problem. We should probably merge
whichever passes first.
This reverts commit 69653318f4.
The old oslo-incubator log module isn't maintained (and doesn't even
exist anymore), so we don't really want to be using it. It appears
this was the only incubator module we were actually using, so this
allows us to remove all of the unmaintained incubator code.
This is required so that a swift-enabled TripleO undercloud can switch
to polling for metadata from a TempURL rather than heat.
Users who are debugging unrelated issues are frequently interpreting
logged warnings as an indication that os-collect-config is misconfigured
when the warning is actually harmless.
This change uses info instead of warn for this logging.
The Oslo libraries have moved all of their code out of the 'oslo'
namespace package into per-library packages. The namespace package was
retained during kilo for backwards compatibility, but will be removed by
the liberty-2 milestone. This change removes the use of the namespace
package, replacing it with the new package names.
The patches in the libraries will be put on hold until application
patches have landed, or L2, whichever comes first. At that point, new
versions of the libraries without namespace packages will be released as
a major version update.
Please merge this patch, or an equivalent, before L2 to avoid problems
with those library releases.
This change implements a collector which does an HTTP GET via
python requests to fetch the metadata.
It should work with any GET-able URL, however it is designed to
work with Swift TempURLs.
Swift objects are not consistent, so the Last-Modified header is
checked for each poll and metadata is not fetched if the last
modified is not newer than the previous successful poll.
This collector will be enabled for OS::Nova::Server
software_config_transport: POLL_TEMP_URL which is available
in the Juno release of Heat. Using POLL_TEMP_URL will result
in no metadata polling load on heat, which has historically been
an issue with tripleo scalability.