Changes to csi prow to run e2e tests in sidecars

Author: RaunakShah

prow.sh

@@ -228,6 +228,9 @@ configvar CSI_PROW_E2E_VERSION "$(version_to_git "${CSI_PROW_KUBERNETES_VERSION}
 configvar CSI_PROW_E2E_REPO "https://github.com/kubernetes/kubernetes" "E2E repo"
 configvar CSI_PROW_E2E_IMPORT_PATH "k8s.io/kubernetes" "E2E package"
 
+# Local path for e2e tests. Set to "none" to disable.
+configvar CSI_PROW_SIDECAR_E2E_IMPORT_PATH "none" "CSI Sidecar E2E package"
+
 # csi-sanity testing from the csi-test repo can be run against the installed
 # CSI driver. For this to work, deploying the driver must expose the Unix domain
 # csi.sock as a TCP service for use by the csi-sanity command, which runs outside
@@ -282,13 +285,18 @@ tests_enabled () {
 sanity_enabled () {
     [ "${CSI_PROW_TESTS_SANITY}" = "sanity" ] && tests_enabled "sanity"
 }
+
+sidecar_tests_enabled () {
+  [ "${CSI_PROW_SIDECAR_E2E_IMPORT_PATH}" != "none" ]
+}
+
 tests_need_kind () {
     tests_enabled "parallel" "serial" "serial-alpha" "parallel-alpha" ||
-        sanity_enabled
+        sanity_enabled || sidecar_tests_enabled
 }
 tests_need_non_alpha_cluster () {
     tests_enabled "parallel" "serial" ||
-        sanity_enabled
+        sanity_enabled || sidecar_tests_enabled
 }
 tests_need_alpha_cluster () {
     tests_enabled "parallel-alpha" "serial-alpha"
@@ -352,6 +360,11 @@ configvar CSI_PROW_E2E_ALPHA_GATES "$(get_versioned_variable CSI_PROW_E2E_ALPHA_
 configvar CSI_PROW_E2E_GATES_LATEST '' "non alpha feature gates for latest Kubernetes"
 configvar CSI_PROW_E2E_GATES "$(get_versioned_variable CSI_PROW_E2E_GATES "${csi_prow_kubernetes_version_suffix}")" "non alpha E2E feature gates"
 
+# Focus for local tests run in the sidecar E2E repo. Only used if CSI_PROW_SIDECAR_E2E_IMPORT_PATH
+# is not set to "none". If empty, all tests in the sidecar repo will be run.
+configvar CSI_PROW_SIDECAR_E2E_FOCUS '' "tags for local E2E tests"
+configvar CSI_PROW_SIDECAR_E2E_SKIP '' "local tests that need to be skipped"
+
 # Which external-snapshotter tag to use for the snapshotter CRD and snapshot-controller deployment
 default_csi_snapshotter_version () {
 	if [ "${CSI_PROW_KUBERNETES_VERSION}" = "latest" ] || [ "${CSI_PROW_DRIVER_CANARY}" = "canary" ]; then
@@ -942,6 +955,9 @@ install_e2e () {
         return
     fi
 
+    if sidecar_tests_enabled; then
+        run_with_go "${CSI_PROW_GO_VERSION_BUILD}" go test -c -o "${CSI_PROW_WORK}/e2e-local.test" "${CSI_PROW_SIDECAR_E2E_IMPORT_PATH}"
+    fi
     git_checkout "${CSI_PROW_E2E_REPO}" "${GOPATH}/src/${CSI_PROW_E2E_IMPORT_PATH}" "${CSI_PROW_E2E_VERSION}" --depth=1 &&
     if [ "${CSI_PROW_E2E_IMPORT_PATH}" = "k8s.io/kubernetes" ]; then
         patch_kubernetes "${GOPATH}/src/${CSI_PROW_E2E_IMPORT_PATH}" "${CSI_PROW_WORK}" &&
@@ -997,8 +1013,13 @@ run_e2e () (
     }
     trap move_junit EXIT
 
-    cd "${GOPATH}/src/${CSI_PROW_E2E_IMPORT_PATH}" &&
-    run_with_loggers env KUBECONFIG="$KUBECONFIG" KUBE_TEST_REPO_LIST="$(if [ -e "${CSI_PROW_WORK}/e2e-repo-list" ]; then echo "${CSI_PROW_WORK}/e2e-repo-list"; fi)" ginkgo -v "$@" "${CSI_PROW_WORK}/e2e.test" -- -report-dir "${ARTIFACTS}" -storage.testdriver="${CSI_PROW_WORK}/test-driver.yaml"
+    if [ "${name}" == "local" ]; then
+        cd "${GOPATH}/src/${CSI_PROW_SIDECAR_E2E_IMPORT_PATH}" &&
+        run_with_loggers env KUBECONFIG="$KUBECONFIG" KUBE_TEST_REPO_LIST="$(if [ -e "${CSI_PROW_WORK}/e2e-repo-list" ]; then echo "${CSI_PROW_WORK}/e2e-repo-list"; fi)" ginkgo -v "$@" "${CSI_PROW_WORK}/e2e-local.test" -- -report-dir "${ARTIFACTS}" -report-prefix local
+    else
+        cd "${GOPATH}/src/${CSI_PROW_E2E_IMPORT_PATH}" &&
+        run_with_loggers env KUBECONFIG="$KUBECONFIG" KUBE_TEST_REPO_LIST="$(if [ -e "${CSI_PROW_WORK}/e2e-repo-list" ]; then echo "${CSI_PROW_WORK}/e2e-repo-list"; fi)" ginkgo -v "$@" "${CSI_PROW_WORK}/e2e.test" -- -report-dir "${ARTIFACTS}" -storage.testdriver="${CSI_PROW_WORK}/test-driver.yaml"
+    fi
 )
 
 # Run csi-sanity against installed CSI driver.
@@ -1310,6 +1331,15 @@ main () {
                         ret=1
                     fi
                 fi
+
+                if sidecar_tests_enabled; then
+                    if ! run_e2e local \
+                         -focus="${CSI_PROW_SIDECAR_E2E_FOCUS}" \
+                         -skip="$(regex_join "${CSI_PROW_E2E_SERIAL}")"; then
+                        warn "E2E sidecar failed"
+                        ret=1
+                    fi
+                fi
             fi
             delete_cluster_inside_prow_job non-alpha
         fi