[benchmark] Support GCR and Artifact Registry.

We have base images that still need to be migrated (for instance, from
marketplace.gcr.io). This change restores support for GCR, to be
maintained until all images are migrated.

tools/internal_ci/linux/grpc_e2e_performance_gke.sh

@@ -73,9 +73,10 @@ WORKER_POOL_32CORE=workers-c2-30core-ci
 # Prefix for log URLs in cnsviewer.
 LOG_URL_PREFIX="http://cnsviewer/placer/prod/home/kokoro-dedicated/build_artifacts/${KOKORO_BUILD_ARTIFACTS_SUBDIR}/github/grpc/"
 
-# This is to ensure we can push and pull images from Artifact Registry. We do
+# This is to ensure we can push and pull images from GCR and Artifact Registry.
-# not necessarily need it to run load tests, but will need it when we employ
+# We do not necessarily need it to run load tests, but will need it when we
-# pre-built images in the optimization.
+# employ pre-built images in the optimization.
+gcloud auth configure-docker
 gcloud auth configure-docker "${PREBUILT_IMAGE_PREFIX%%/*}"
 
 # Connect to benchmarks-prod2 cluster.

tools/internal_ci/linux/grpc_e2e_performance_gke_cxx_experiments_framework.sh

@@ -67,9 +67,10 @@ WORKER_POOL_32CORE=workers-c2-30core-ci
 # Prefix for log URLs in cnsviewer.
 LOG_URL_PREFIX="http://cnsviewer/placer/prod/home/kokoro-dedicated/build_artifacts/${KOKORO_BUILD_ARTIFACTS_SUBDIR}/github/grpc/"
 
-# This is to ensure we can push and pull images from Artifact Registry. We do
+# This is to ensure we can push and pull images from GCR and Artifact Registry.
-# not necessarily need it to run load tests, but will need it when we employ
+# We do not necessarily need it to run load tests, but will need it when we
-# pre-built images in the optimization.
+# employ pre-built images in the optimization.
+gcloud auth configure-docker
 gcloud auth configure-docker "${PREBUILT_IMAGE_PREFIX%%/*}"
 
 # Connect to benchmarks-prod2 cluster.

tools/internal_ci/linux/grpc_e2e_performance_gke_experiment.sh

@@ -68,9 +68,10 @@ WORKER_POOL_32CORE=workers-c2-30core-ci
 # Prefix for log URLs in cnsviewer.
 LOG_URL_PREFIX="http://cnsviewer/placer/prod/home/kokoro-dedicated/build_artifacts/${KOKORO_BUILD_ARTIFACTS_SUBDIR}/github/grpc/"
 
-# This is to ensure we can push and pull images from Artifact Registry. We do
+# This is to ensure we can push and pull images from GCR and Artifact Registry.
-# not necessarily need it to run load tests, but will need it when we employ
+# We do not necessarily need it to run load tests, but will need it when we
-# pre-built images in the optimization.
+# employ pre-built images in the optimization.
+gcloud auth configure-docker
 gcloud auth configure-docker "${PREBUILT_IMAGE_PREFIX%%/*}"
 
 # Connect to benchmarks-prod2 cluster.

tools/internal_ci/linux/grpc_psm_performance_gke_experiment.sh

@@ -46,9 +46,10 @@ WORKER_POOL_8CORE=workers-c2-8core-ci
 # Prefix for log URLs in cnsviewer.
 LOG_URL_PREFIX="http://cnsviewer/placer/prod/home/kokoro-dedicated/build_artifacts/${KOKORO_BUILD_ARTIFACTS_SUBDIR}/github/grpc/"
 
-# This is to ensure we can push and pull images from Artifact Registry. We do
+# This is to ensure we can push and pull images from GCR and Artifact Registry.
-# not necessarily need it to run load tests, but will need it when we employ
+# We do not necessarily need it to run load tests, but will need it when we
-# pre-built images in the optimization.
+# employ pre-built images in the optimization.
+gcloud auth configure-docker
 gcloud auth configure-docker "${PREBUILT_IMAGE_PREFIX%%/*}"
 
 # Connect to benchmarks-prod2 cluster.