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authorFlorian Klink <flokli@flokli.de>2021-04-29T14·02+0200
committerVincent Ambo <mail@tazj.in>2021-04-29T21·55+0200
commit7e8295189bbcd4a30ea684c65c0a3c343d4842a9 (patch)
tree661de1dfb2ee264b08882f569c4c79a5d7462ae7 /tools/nixery/README.md
parent970f49223599ec124809ead7be0b61e3e30431f9 (diff)
docs: document unset GOOGLE_APPLICATION_CREDENTIALS
In case the `GOOGLE_APPLICATION_CREDENTIALS` environment variable is not
set, a redirect to storage.googleapis.com is issued, which means the
underlying bucket objects need to be publicly accessible.

This wasn't really obvious until now, so further clarify it.
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diff --git a/tools/nixery/README.md b/tools/nixery/README.md
index c701a0e62ee1..cebf28b58492 100644
--- a/tools/nixery/README.md
+++ b/tools/nixery/README.md
@@ -94,6 +94,10 @@ account key, Nixery will also use this key to create [signed URLs][] for layers
 in the storage bucket. This makes it possible to serve layers from a bucket
 without having to make them publicly available.
 
+In case the `GOOGLE_APPLICATION_CREDENTIALS` environment variable is not set, a
+redirect to storage.googleapis.com is issued, which means the underlying bucket
+objects need to be publicly accessible.
+
 ### Storage
 
 Nixery supports multiple different storage backends in which its build cache and