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-rwxr-xr-xsrc/ci/docker/run.sh10
1 files changed, 8 insertions, 2 deletions
diff --git a/src/ci/docker/run.sh b/src/ci/docker/run.sh
index d2697ac27ab..6658b83efc8 100755
--- a/src/ci/docker/run.sh
+++ b/src/ci/docker/run.sh
@@ -236,9 +236,15 @@ args=
 if [ "$SCCACHE_BUCKET" != "" ]; then
     args="$args --env SCCACHE_BUCKET"
     args="$args --env SCCACHE_REGION"
-    args="$args --env AWS_ACCESS_KEY_ID"
-    args="$args --env AWS_SECRET_ACCESS_KEY"
     args="$args --env AWS_REGION"
+
+    # Disable S3 authentication for PR builds, because the access keys are missing
+    if [ "$PR_CI_JOB" != "" ]; then
+      args="$args --env SCCACHE_S3_NO_CREDENTIALS=1"
+    else
+      args="$args --env AWS_ACCESS_KEY_ID"
+      args="$args --env AWS_SECRET_ACCESS_KEY"
+    fi
 else
     mkdir -p $HOME/.cache/sccache
     args="$args --env SCCACHE_DIR=/sccache --volume $HOME/.cache/sccache:/sccache"