Commits on Dec 8, 2023

1. tracing: allow the Resource to be set externally …

   This is a workaround for the brittleness when constructing OTel
   `Resource` objects. Internally, the OTel libraries do their own
   detection which can be merged with one created in code. However,
   the `semconv` spec versions must match. (NOT module version! the
   `semconv` package has multiple subpackages for each spec version,
   e.g. `semconv/v1.17`, `semconv/v1.21`, etc.)
   
   This creates a problem when BuildKit is used as a library - the
   importing app might be using a different, otherwise compatible
   version of the OTel libraries, so when it creates a resource, it
   will be merged with one of a different version.
   
   By allowing the `Resource` to be set (like the `Recorder`), the
   calling code can construct a resource using known consistent
   library versions that work, and then allow BuildKit to take over
   the rest of the initialization process for OTel.
   
   Signed-off-by: Milas Bowman <milas.bowman@docker.com>

   

   milas committed Dec 8, 2023
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