feat: add support for detecting custom metadata in sys props and env vars #604
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Issue #
Closes #575
Description of changes
Adds support for parsing custom metadata from system properties and environment variables.
System properties starting with
aws.customMetadata.
will be parsed for key/value pairs. The keys are taken from the part of the system property name afteraws.customMetadata.
For example, a system property ofaws.customMetadata.foo
set tobar
will yield the custom metadatamd/foo/bar
.Environment variables starting with
AWS_CUSTOM_METADATA_
will be parsed for key/value pairs. The keys are take from the part of the env var name afterAWS_CUSTOM_METADATA_
. For example, an environment variable ofAWS_CUSTOM_METADATA_foo
set tobar
will yield the custom metadatamd/foo/bar
.Companion PR: smithy-kotlin#638
By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.