Add build for the e2e tests

To run the e2e tests, RUN_INGRESS_E2E must be set. Otherwise, the
tests will be skipped.

Dockerfile.e2e-test

@@ -0,0 +1,18 @@
+# Copyright 2018 The Kubernetes Authors. All rights reserved.
+#
+# 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.
+
+FROM debian:9
+
+ADD bin/ARG_ARCH/ARG_BIN /ARG_BIN
+ENTRYPOINT ["/ARG_BIN"]

Makefile

@@ -21,7 +21,7 @@ PKG := k8s.io/ingress-gce
 
 # List of binaries to build. You must have a matching Dockerfile.BINARY
 # for each BINARY.
-CONTAINER_BINARIES := glbc
+CONTAINER_BINARIES := glbc e2e-test
 
 # Latest commit hash for current branch.
 GIT_COMMIT := $(shell git rev-parse HEAD)

build/build.sh

@@ -42,7 +42,11 @@ if [ $GOARCH == "amd64" ]; then
     export GOBIN="$GOPATH/bin/linux_amd64"
 fi
 
-go install                                                                                             \
-    -installsuffix "static"                                                                            \
-    -ldflags "-X ${PKG}/pkg/version.Version=${VERSION} -X ${PKG}/pkg/version.GitCommit=${GIT_COMMIT}"  \
-    ./...
+if echo "${TARGET}" | grep '.*-test$'; then
+  go test -c -o "${TARGET}" "$PKG/cmd/$(basename ${TARGET})"
+else
+  go install                                                                                             \
+      -installsuffix "static"                                                                            \
+      -ldflags "-X ${PKG}/pkg/version.Version=${VERSION} -X ${PKG}/pkg/version.GitCommit=${GIT_COMMIT}"  \
+      ./...
+fi

build/rules.mk

@@ -74,7 +74,7 @@ ifeq ($(VERBOSE), 1)
 	VERBOSE_OUTPUT := >&1
 else
 	DOCKER_BUILD_FLAGS := -q
-	VERBOSE_OUTPUT := >/dev/null
+	VERBOSE_OUTPUT := >/dev/null 2>/dev/null
 endif
 
 # This MUST appear as the first rule in a Makefile
@@ -106,7 +106,7 @@ build: $(GO_BINARIES) images-build
 # Rule for all bin/$(ARCH)/bin/$(BINARY)
 $(GO_BINARIES): build-dirs
 	@echo "building : $@"
-	@docker pull $(BUILD_IMAGE)
+	@docker pull $(BUILD_IMAGE) $(VERBOSE_OUTPUT)
 	@docker run                                                            \
 	    --rm                                                               \
 	    --sig-proxy=true                                                   \
@@ -122,11 +122,11 @@ $(GO_BINARIES): build-dirs
 	        ARCH=$(ARCH)                                                   \
 	        VERSION=$(VERSION)                                             \
 	        PKG=$(PKG)                                                     \
-		GIT_COMMIT=$(GIT_COMMIT)                                       \
+			TARGET=$@                                                      \
+		GIT_COMMIT=$(GIT_COMMIT)                                           \
 	        ./build/build.sh                                               \
 	    "
 
-
 # Rules for dockerfiles.
 define DOCKERFILE_RULE
 .$(BINARY)-$(ARCH)-dockerfile: Dockerfile.$(BINARY)

cmd/e2e-test/main_test.go

@@ -0,0 +1,84 @@
+/*
+Copyright 2018 The Kubernetes 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.
+*/
+
+package main
+
+import (
+	"flag"
+	"fmt"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/golang/glog"
+	"k8s.io/client-go/rest"
+	"k8s.io/client-go/tools/clientcmd"
+	"k8s.io/ingress-gce/pkg/e2e"
+	// Pull in the auth library for GCP.
+	_ "k8s.io/client-go/plugin/pkg/client/auth/gcp"
+)
+
+var (
+	flags struct {
+		inCluster  bool
+		kubeconfig string
+	}
+
+	Framework *e2e.Framework
+)
+
+func init() {
+	home := os.Getenv("HOME")
+	if home != "" {
+		flag.StringVar(&flags.kubeconfig, "kubeconfig", filepath.Join(home, ".kube", "config"), "(optional) absolute path to the kubeconfig file")
+	} else {
+		flag.StringVar(&flags.kubeconfig, "kubeconfig", "", "absolute path to the kubeconfig file")
+	}
+	flag.BoolVar(&flags.inCluster, "inCluster", false, "set to true if running in the cluster")
+}
+
+// TestMain is the entrypoint for the end-to-end test suite. This is where
+// global resource setup should be done.
+func TestMain(m *testing.M) {
+	flag.Parse()
+
+	if os.Getenv("RUN_INGRESS_E2E") != "true" {
+		fmt.Fprintln(os.Stderr, "You must set the RUN_INGRESS_E2E environment variable to 'true' run the tests.")
+		return
+	}
+
+	var err error
+	var kubeconfig *rest.Config
+
+	if flags.inCluster {
+		kubeconfig, err = rest.InClusterConfig()
+		if err != nil {
+			glog.Fatalf("Error creating InClusterConfig(): %v", err)
+		}
+	} else {
+		kubeconfig, err = clientcmd.BuildConfigFromFlags("", flags.kubeconfig)
+		if err != nil {
+			glog.Fatalf("Error creating kubernetes clientset from %q: %v", flags.kubeconfig, err)
+		}
+	}
+
+	Framework = e2e.NewFramework(kubeconfig)
+	if err := Framework.SanityCheck(); err != nil {
+		glog.Fatalf("Framework sanity check failed: %v", err)
+	}
+
+	os.Exit(m.Run())
+}

cmd/e2e-test/nothing_test.go

@@ -0,0 +1,24 @@
+/*
+Copyright 2018 The Kubernetes 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.
+*/
+
+package main
+
+import (
+	"testing"
+)
+
+func TestNothing(t *testing.T) {
+}

cmd/e2e-test/placeholder.go

@@ -0,0 +1,20 @@
+/*
+Copyright 2018 The Kubernetes 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.
+*/
+
+package main
+
+// This is a placeholder file to keep the Golang build happy.
+func main() {}

pkg/e2e/doc.go

@@ -0,0 +1,19 @@
+/*
+Copyright 2018 The Kubernetes 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.
+*/
+
+// Package e2e contains supporting infrastructure for end-to-end integration
+// testing driven by the tests in cmd/e2e-test.
+package e2e

pkg/e2e/framework.go

@@ -0,0 +1,46 @@
+/*
+Copyright 2018 The Kubernetes 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.
+*/
+
+package e2e
+
+import (
+	"github.com/golang/glog"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/client-go/kubernetes"
+	"k8s.io/client-go/rest"
+)
+
+// NewFramework returns a new test framework to run.
+func NewFramework(config *rest.Config) *Framework {
+	return &Framework{
+		Clientset: kubernetes.NewForConfigOrDie(config),
+	}
+}
+
+// Framework is the ent-to-end test framework.
+type Framework struct {
+	Clientset *kubernetes.Clientset
+}
+
+// SanityCheck the test environment before proceeding.
+func (f *Framework) SanityCheck() error {
+	if _, err := f.Clientset.Core().Pods("default").List(metav1.ListOptions{}); err != nil {
+		glog.Errorf("Error talking to the Kubernetes master: %v", err)
+		return err
+	}
+	// TODO: check connectivity etc.
+	return nil
+}