tustvold commented on code in PR #6015:
URL: https://github.com/apache/arrow-rs/pull/6015#discussion_r1672082498
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object_store/src/gcp/credential.rs:
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@@ -419,12 +422,22 @@ impl TokenProvider for InstanceCredentialProvider {
client: &Client,
retry: &RetryConfig,
) -> crate::Result<TemporaryToken<Arc<GcpCredential>>> {
- const METADATA_IP: &str = "169.254.169.254";
- const METADATA_HOST: &str = "metadata";
+ let metadata_host = if let Ok(host) = env::var("GCE_METADATA_HOST") {
Review Comment:
I think it would be good to provide some links to the documentation for this
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