[GitHub] [airflow] mik-laj commented on a change in pull request #15222: Run kubernetes tests in parallel

[GitBox <gi...@apache.org>]

mik-laj commented on a change in pull request #15222:
URL: https://github.com/apache/airflow/pull/15222#discussion_r607450356



##########
File path: scripts/ci/kubernetes/ci_setup_clusters_and_run_kubernetes_tests_in_parallel.sh
##########
@@ -0,0 +1,106 @@
+#!/usr/bin/env bash
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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 -euo pipefail
+
+# We cannot perform full initialization because it will be done later in the "single run" scripts
+# And some readonly variables are set there, therefore we only selectively reuse parallel lib needed
+LIBRARIES_DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")/../libraries/" && pwd)
+# shellcheck source=scripts/ci/libraries/_all_libs.sh
+source "${LIBRARIES_DIR}/_all_libs.sh"
+export SEMAPHORE_NAME="kubernetes-tests"
+
+function get_maximum_parallel_k8s_jobs() {
+    docker_engine_resources::get_available_cpus_in_docker
+    if [[ ${RUNS_ON} != *"self-hosted"* ]]; then
+        echo
+        echo "${COLOR_YELLOW}This is a Github Public runner - for now we are forcing max parallel K8S tests jobs to 1 for those${COLOR_RESET}"
+        echo
+        export MAX_PARALLEL_K8S_JOBS="1"
+    else
+        if [[ ${MAX_PARALLEL_K8S_JOBS=} != "" ]]; then
+            echo
+            echo "${COLOR_YELLOW}Maximum parallel k8s jobs forced vi MAX_PARALLEL_K8S_JOBS = ${MAX_PARALLEL_K8S_JOBS}${COLOR_RESET}"
+            echo
+        else
+            MAX_PARALLEL_K8S_JOBS=${CPUS_AVAILABLE_FOR_DOCKER}
+            echo
+            echo "${COLOR_YELLOW}Maximum parallel k8s jobs set to number of CPUs available for Docker = ${MAX_PARALLEL_K8S_JOBS}${COLOR_RESET}"
+            echo
+        fi
+    fi
+    export MAX_PARALLEL_K8S_JOBS
+}
+
+# Launches parallel building of images. Redirects output to log set the right directories
+# $1 - test_specification
+# $2 - bash file to execute in parallel
+function run_kubernetes_test() {
+    local kubernetes_version=$1
+    local python_version=$2
+    local job="Cluster-${kubernetes_version}-python-${python_version}"
+
+    mkdir -p "${PARALLEL_MONITORED_DIR}/${SEMAPHORE_NAME}/${job}"
+    export JOB_LOG="${PARALLEL_MONITORED_DIR}/${SEMAPHORE_NAME}/${job}/stdout"
+    export PARALLEL_JOB_STATUS="${PARALLEL_MONITORED_DIR}/${SEMAPHORE_NAME}/${job}/status"
+    echo "Starting K8S tests for kubernetes version ${kubernetes_version}, python version: ${python_version}"
+    parallel --ungroup --bg --semaphore --semaphorename "${SEMAPHORE_NAME}" \
+        --jobs "${MAX_PARALLEL_K8S_JOBS}" \
+            "$(dirname "${BASH_SOURCE[0]}")/ci_setup_cluster_and_run_kubernetes_tests_single_job.sh" \
+                "${kubernetes_version}" "${python_version}" >"${JOB_LOG}" 2>&1
+}
+
+function run_k8s_tests_in_parallel() {
+    start_end::group_start "Monitoring k8s tests"
+    parallel::cleanup_runner
+    parallel::initialize_monitoring
+    parallel::monitor_progress
+
+    # In case there are more kubernetes versions than strings, we can reuse python versions so we add it twice here
+    local repeated_python_versions
+    # shellcheck disable=SC2206
+    repeated_python_versions=(${CURRENT_PYTHON_MAJOR_MINOR_VERSIONS_AS_STRING} ${CURRENT_PYTHON_MAJOR_MINOR_VERSIONS_AS_STRING})
+    local index=0
+    for kubernetes_version in ${CURRENT_KUBERNETES_VERSIONS_AS_STRING}
+    do
+        index=$((index + 1))
+        python_version=${repeated_python_versions[${index}]}
+        FORWARDED_PORT_NUMBER=$((38080 + index))
+        export FORWARDED_PORT_NUMBER
+        API_SERVER_PORT=$((19090 + index))
+        export API_SERVER_PORT
+        run_kubernetes_test "${kubernetes_version}" "${python_version}" "${@}"
+    done
+    set +e
+    parallel --semaphore --semaphorename "${SEMAPHORE_NAME}" --wait
+    parallel::kill_monitor
+    set -e
+    start_end::group_end
+}
+
+initialization::set_output_color_variables
+
+parallel::make_sure_gnu_parallel_is_installed
+parallel::make_sure_python_versions_are_specified
+parallell::make_sure_kubernetes_versions_are_specified

Review comment:
       ```suggestion
   parallel::make_sure_kubernetes_versions_are_specified
   ```




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