Add scripts to run the upgrade tests

Signed-off-by: Romain Arnaud <[email protected]>

Author: Roming22

ci/hack/plnsvc_upgrade_tests.sh

@@ -0,0 +1,133 @@
+#!/usr/bin/env bash
+
+#quit if exit status of any cmd is a non-zero value
+set -o errexit
+set -o nounset
+set -o pipefail
+
+usage() {
+    echo "
+Usage:
+    $0 [options]
+
+Run Pipeline Service upgrade tests on the cluster referenced by KUBECONFIG.
+
+Using the 'main' branch as the baseline, it will deploy Pipeline Service,
+upgrade to your current branch, and downgrade back to 'main', testing the
+service at every step along the way.
+
+Optional arguments:
+    -k, --kubeconfig KUBECONFIG
+        kubeconfig to the cluster to test.
+        The current context will be used.
+        Default value: \$KUBECONFIG"
+    # -f, --from VERSION
+    #     Branch, SHA or tag of the base version.
+    #     Default: main.
+    # -t, --to VERSION
+    #     Branch, SHA or tag of the new version.
+    #     Default: Current commit.
+echo "\
+    -d, --debug
+        Activate tracing/debug mode.
+    -h, --help
+        Display this message.
+
+Example:
+    $0 --kubeconfig mykubeconfig.yaml
+"
+}
+
+parse_args() {
+    KUBECONFIG="${KUBECONFIG:-$HOME/.kube/config}"
+    FROM_VERSION="main"
+    TO_VERSION=$(git branch --show-current)
+    while [[ $# -gt 0 ]]; do
+        case $1 in
+        -k | --kubeconfig)
+        shift
+        KUBECONFIG="$1"
+        ;;
+        # -f | --from)
+        #   shift
+        #   FROM_VERSION="$1"
+        #   ;;
+        # -t | --to)
+        #   shift
+        #   TO_VERSION="$1"
+        #   ;;
+        -d | --debug)
+        DEBUG="--debug"
+        set -x
+        ;;
+        -h | --help)
+        usage
+        exit 0
+        ;;
+        *)
+        echo "Unknown argument: $1"
+        usage
+        exit 1
+        ;;
+        esac
+        shift
+    done
+    DEBUG="${DEBUG:-}"
+}
+
+init() {
+    SCRIPT_DIR=$(
+        cd "$(dirname "$0")" >/dev/null
+        pwd
+    )
+    PROJECT_DIR=$(
+        cd "$SCRIPT_DIR/../.." >/dev/null
+        pwd
+    )
+    export KUBECONFIG
+}
+
+run_for(){
+    OPTS=""
+    case "$1" in
+        from)
+            VERSION="$FROM_VERSION"
+            ;;
+        to)
+            VERSION="$TO_VERSION"
+            OPTS="--use-current-branch"
+            ;;
+    esac
+    echo
+    git checkout "$VERSION"
+    echo "[Deploying $VERSION]"
+    # shellcheck disable=SC2086
+    "$PROJECT_DIR/developer/openshift/dev_setup.sh" $OPTS $DEBUG
+
+    echo
+    echo "[Testing $VERSION]"
+    # shellcheck disable=SC2086
+    "$PROJECT_DIR/operator/test/test.sh" $DEBUG
+}
+
+on_exit(){
+    git checkout -f "$TO_VERSION"
+    [ "$STASH" == "1" ] || git stash pop
+}
+
+main() {
+    parse_args "$@"
+    init
+
+    trap on_exit EXIT
+
+    STASH="$(git stash | grep -c "No local changes to save" || true)"
+
+    run_for "from"
+    run_for "to"
+    run_for "from"
+}
+
+if [ "${BASH_SOURCE[0]}" == "$0" ]; then
+    main "$@"
+fi