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Clean up whitespace in OTEL_RESOURCE_ATTRIBUTES #1541

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Clean up whitespace in OTEL_RESOURCE_ATTRIBUTES #1541

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14a4832
clean up whitespace
Nov 3, 2023
9be4469
decode value
Nov 3, 2023
09d652e
trim whitespace first
Nov 3, 2023
76d88fe
Merge branch 'main' into otel-resource-attributes-env
Mar 2, 2024
3937cc2
Merge branch 'main' into otel-resource-attributes-env
arielvalentin Apr 3, 2024
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2 changes: 1 addition & 1 deletion sdk/lib/opentelemetry/sdk/resources/resource.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -46,7 +46,7 @@ def telemetry_sdk

resource_pairs.split(',').each do |pair|
key, value = pair.split('=')
resource_attributes[key] = value
resource_attributes[key.strip] = value
end

resource_attributes.delete_if { |_key, value| value.nil? || value.empty? }
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7 changes: 7 additions & 0 deletions sdk/test/opentelemetry/sdk/configurator_test.rb
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Expand Up @@ -87,6 +87,13 @@
_(configurator_resource_attributes).must_equal(expected_resource_attributes)
end
end

it 'cleans up whitespace in user provided resources' do
OpenTelemetry::TestHelpers.with_env('OTEL_RESOURCE_ATTRIBUTES' => 'important_foo=x, important_bar=y') do
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Should this trim values as well?

Suggested change
OpenTelemetry::TestHelpers.with_env('OTEL_RESOURCE_ATTRIBUTES' => 'important_foo=x, important_bar=y') do
OpenTelemetry::TestHelpers.with_env('OTEL_RESOURCE_ATTRIBUTES' => ' important_foo=x, important_bar=y ') do

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I thought about this but decided against it - I could add it in, not sure what other otel instrumentation agents do.

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I believe this should be using Baggage format so should be trimming spance then URL decoding https://github.com/open-telemetry/opentelemetry-go/blob/main/sdk/resource/env.go#L92

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This is my first time ever writing ruby and I haven't been able to run the tests locally (got ruby 2 installed), but I have made the changes and hopefully they make sense.

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wait sorry I messed up the order, trim first! committing in a moment

configurator.resource = OpenTelemetry::SDK::Resources::Resource.create()
_(configurator_resource_attributes).must_equal(default_resource_attributes.merge('important_foo' => 'x', 'important_bar' => 'y'))
end
end
end
end

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