PSM Interop: simplify Kokoro buildscripts (@grpc/grpc-js@1.10.x backport)

packages/grpc-js-xds/scripts/psm-interop-build-node.sh

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+#!/usr/bin/env bash
+# Copyright 2024 gRPC authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+set -eo pipefail
+
+#######################################
+# Builds test app Docker images and pushes them to GCR.
+# Called from psm_interop_kokoro_lib.sh.
+#
+# Globals:
+#   SRC_DIR: Absolute path to the source repo on Kokoro VM
+#   SERVER_IMAGE_NAME: Test server Docker image name
+#   CLIENT_IMAGE_NAME: Test client Docker image name
+#   GIT_COMMIT: SHA-1 of git commit being built
+#   DOCKER_REGISTRY: Docker registry to push to
+# Outputs:
+#   Writes the output of docker image build stdout, stderr
+#######################################
+psm::lang::build_docker_images() {
+  local client_dockerfile="packages/grpc-js-xds/interop/Dockerfile"
+
+  cd "${SRC_DIR}"
+  psm::tools::run_verbose git submodule update --init --recursive
+  psm::tools::run_verbose git submodule status
+
+  psm::build::docker_images_generic "${client_dockerfile}"
+}

packages/grpc-js-xds/scripts/psm-interop-test-node.sh

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+#!/usr/bin/env bash
+# Copyright 2024 gRPC authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+set -eo pipefail
+
+# Input parameters to psm:: methods of the install script.
+readonly GRPC_LANGUAGE="node"
+readonly BUILD_SCRIPT_DIR="$(dirname "$0")"
+
+# Used locally.
+readonly TEST_DRIVER_INSTALL_SCRIPT_URL="https://raw.githubusercontent.com/${TEST_DRIVER_REPO_OWNER:-grpc}/psm-interop/${TEST_DRIVER_BRANCH:-main}/.kokoro/psm_interop_kokoro_lib.sh"
+
+psm::lang::source_install_lib() {
+  echo "Sourcing test driver install script from: ${TEST_DRIVER_INSTALL_SCRIPT_URL}"
+  local install_lib
+  # Download to a tmp file.
+  install_lib="$(mktemp -d)/psm_interop_kokoro_lib.sh"
+  curl -s --retry-connrefused --retry 5 -o "${install_lib}" "${TEST_DRIVER_INSTALL_SCRIPT_URL}"
+  # Checksum.
+  if command -v sha256sum &> /dev/null; then
+    echo "Install script checksum:"
+    sha256sum "${install_lib}"
+  fi
+  source "${install_lib}"
+}
+
+psm::lang::source_install_lib
+source "${BUILD_SCRIPT_DIR}/psm-interop-build-${GRPC_LANGUAGE}.sh"
+psm::run "${PSM_TEST_SUITE}"