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			232 lines
		
	
	
		
			8.8 KiB
		
	
	
	
		
			Bash
		
	
	
	
	
	
			
		
		
	
	
			232 lines
		
	
	
		
			8.8 KiB
		
	
	
	
		
			Bash
		
	
	
	
	
	
#!/bin/bash
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#
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# Copyright (c) 2021 The Flatcar Maintainers.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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# >>> This file is supposed to be SOURCED from the repository ROOT. <<<
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#
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# test_run() should be called w/ the positional INPUT parameters below.
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# Test scenarios runner stub.
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#   This script will run test scenarios for a single image type.
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#   Tests will be started inside the mantle container.
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#   This script is generic and will use a vendor-specific test runner from
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#    "ci-automation/vendor-testing/<image>.sh.
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#
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# PREREQUISITES:
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#
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#   1. SDK version and OS image version are recorded in sdk_container/.repo/manifests/version.txt
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#   2. Scripts repo version tag of OS image version to be built is available and checked out.
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#   3. Mantle container docker image reference is stored in sdk_container/.repo/manifests/mantle-container.
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#   4. Vendor image to run tests for are available on buildcache
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#         ( images/[ARCH]/[FLATCAR_VERSION]/ )
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#
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# INPUT:
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#
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#   1. Architecture (ARCH) of the TARGET vm images ("arm64", "amd64").
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#   2. Image type to be tested. One of:
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#      ami, azure, azure_pro, digitalocean, gce, gce_pro, packet, qemu, qemu_uefi, vmware
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#
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# OPTIONAL INPUT:
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#
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#   3. List of tests / test patterns. Defaults to "*" (all tests).
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#      All positional arguments after the first 2 (see above) are tests / patterns of tests to run.
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#
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#   MAX_RETRIES. Environment variable. Number of re-runs to overcome transient failures. Defaults to 20.
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#   PARALLEL_TESTS. Environment variable. Number of test cases to run in parallel.
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#                   Default is image / vendor specific and defined in ci-automation/ci-config.env.
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#
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# OUTPUT:
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#
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#   1. 2 merged TAP reports with all test runs / vendors.
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#        - a "summary" report which contains error messages only for tests which never succeeded (per vendor).
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#        - a "detailed" report which also contains error messages of transient failures which succeeded after re-runs.
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#        These reports will be updated after each (re-)run of each vendor, making the test job safe
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#          to abort at any point - the previous runs' results won't be lost.
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#   2. All intermediate kola tap reports, kola debug output, and merged tap reports (from 1.) published
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#        to buildcache at testing/[VERSION]/[ARCH]/[IMAGE]
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#   3. "./ci-cleanup.sh" with commands to clean up temporary build resources,
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#        to be run after this step finishes / when this step is aborted.
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#
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#
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# LOW-LEVEL / VENDOR SPECIFIC scripts API
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#
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# Vendor scripts are provided with their own sub-directory and are expected to CD into there before
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#  creating any artifacts (see vendor script argument 1 below).
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#
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# Vendor specific scripts are called with the following positional arguments:
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# 1 - Toplevel tests directory
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#     It contains some additional files needed for running the tests (like file with channel information).
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# 2 - Working directory for the tests.
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#     The vendor script is expected to keep all artifacts it produces in that directory.
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# 3 - Architecture to test.
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# 4 - Version number to test.
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# 5 - Output TAP file.
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# All following arguments specify test cases / test case patterns to run.
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#
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# The vendor tests should source ci-automation/vendor_test.sh script
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# as a first step - it will do some common steps that the vendor
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# script would need to make anyway. For more information, please refer
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# to the vendor_test.sh file.
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function __escape_multiple() {
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    local out_array_arg_name="${1}"; shift
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    # rest are args to be escape and appended into the array named
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    # after the first arg
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    local -n out_array_arg_ref="${out_array_arg_name}"
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    local arg arg_escaped
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    out_array_arg_ref=()
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    for arg; do
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        printf -v arg_escaped '%q' "${arg}"
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        out_array_arg_ref+=( "${arg_escaped}" )
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    done
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}
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# --
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function test_run() {
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    # Run a subshell, so the traps, environment changes and global
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    # variables are not spilled into the caller.
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    (
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        set -euo pipefail
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        _test_run_impl "${@}"
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    )
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}
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# --
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function _test_run_impl() {
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    local arch="$1" ; shift
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    local image="$1"; shift
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    # default to all tests
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    if [ $# -le 0 ] ; then
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        set -- '*'
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    fi
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    local retries="${MAX_RETRIES:-20}"
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    local skip_copy_to_bincache=${SKIP_COPY_TO_BINCACHE:-0}
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    source ci-automation/tapfile_helper_lib.sh
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    source ci-automation/ci_automation_common.sh
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    source sdk_lib/sdk_container_common.sh
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    source sdk_container/.repo/manifests/version.txt
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    local vernum="${FLATCAR_VERSION}"
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    local docker_vernum
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    docker_vernum="$(vernum_to_docker_image_version "${vernum}")"
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    local work_dir="${TEST_WORK_DIR}"
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    local tests_dir="${work_dir}/${image}"
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    mkdir -p "${tests_dir}"
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    # Store git version and git channel as files inside ${work_dir}.
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    # This information might not be available inside the docker
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    # container if this directory is not a main git repo, but rather a
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    # git worktree.
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    get_git_version >"${work_dir}/git_version"
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    get_git_channel >"${work_dir}/git_channel"
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    local container_name="flatcar-tests-${arch}-${docker_vernum}-${image}"
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    local mantle_ref
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    mantle_ref=$(cat sdk_container/.repo/manifests/mantle-container)
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    local tap_merged_summary="results-${image}"
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    local tap_merged_detailed="results-${image}-detailed"
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    local retry=""
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    local success=false
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    local print_give_up=true
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    local failed_tests=()
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    # A job on each worker prunes old mantle images (docker image prune)
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    echo "docker rm -f '${container_name}'" >> ./ci-cleanup.sh
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    local image_escaped
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    printf -v image_escaped '%q' "${image}"
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    local common_test_args=(
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        "${work_dir}"
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        "${tests_dir}"
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        "${arch}"
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        "${vernum}"
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    )
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    local common_test_args_escaped=()
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    __escape_multiple common_test_args_escaped "${common_test_args[@]}"
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    local tests_escaped=()
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    __escape_multiple tests_escaped "${@}"
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    # Vendor tests may need to know if it is a first run or a rerun
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    touch "${work_dir}/first_run"
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    for retry in $(seq "${retries}"); do
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        local tapfile="results-run-${retry}.tap"
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        local failfile="failed-run-${retry}.txt"
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        local tapfile_escaped
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        printf -v tapfile_escaped '%q' "${tapfile}"
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        # Ignore retcode since tests are flaky. We'll re-run failed tests and
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        #  determine success based on test results (tapfile).
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        set +e
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        touch sdk_container/.env
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        docker run --pull always --rm --name="${container_name}" --privileged --net host -v /dev:/dev \
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          -w /work -v "$PWD":/work "${mantle_ref}" \
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         bash -c "git config --global --add safe.directory /work && \
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                  source sdk_container/.env && \
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                  ci-automation/vendor-testing/${image_escaped}.sh ${common_test_args_escaped[*]} ${tapfile_escaped} ${tests_escaped[*]}"
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        set -e
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        rm -f "${work_dir}/first_run"
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        # Note: git safe.directory is not set in this run as it does not use git
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        docker run --pull always --rm --name="${container_name}" --privileged --net host -v /dev:/dev \
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          -w /work -v "$PWD":/work "${mantle_ref}" \
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            ci-automation/test_update_reruns.sh \
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                "${arch}" "${vernum}" "${image}" "${retry}" \
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                "${tests_dir}/${tapfile}" \
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                "${tests_dir}/${failfile}" \
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                "${tap_merged_summary}" \
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                "${tap_merged_detailed}"
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        readarray -t failed_tests <"${tests_dir}/${failfile}"
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        if [ "${#failed_tests[@]}" -eq 0 ] ; then
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            echo "########### All tests succeeded. ###########"
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            success=true
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            print_give_up=false
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            break
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        fi
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        if retest_cycle_broken; then
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            echo "########### Test cycle requested to break ###########"
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            echo "Failed tests:"
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            printf '%s\n' "${failed_tests[@]}"
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            echo "-----------"
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            print_give_up=false
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            break
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        fi
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        echo "########### Some tests failed and will be re-run (${retry} / ${retries}). ###########"
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        echo "Failed tests:"
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        printf '%s\n' "${failed_tests[@]}"
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        echo "-----------"
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        __escape_multiple tests_escaped "${failed_tests[@]}"
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    done
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    if ${print_give_up}; then
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        echo "########### All re-runs exhausted ($retries). Giving up. ###########"
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    fi
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    if [ ${skip_copy_to_bincache} -eq 0 ];then
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        # publish kola output, TAP files to build cache
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        copy_to_buildcache "testing/${vernum}/${arch}/${image}" \
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            "${tests_dir}/_kola_temp"
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        copy_to_buildcache "testing/${vernum}/${arch}/${image}" \
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            "${tests_dir}/"*.tap
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        copy_to_buildcache "testing/${vernum}/${arch}/${image}" \
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            "${tap_merged_summary}"*
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        copy_to_buildcache "testing/${vernum}/${arch}/${image}" \
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            "${tap_merged_detailed}"*
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    fi
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    if ! $success; then
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        return 1
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    fi
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}
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# --
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